Engineering, Product and Design Startups funded by Y Combinator (YC) 2025

GitLab is the first single application for the entire DevOps lifecycle. Only GitLab enables Concurrent DevOps, unlocking organizations from the constraints of today’s toolchain. GitLab provides unmatched visibility, radical new levels of efficiency and comprehensive governance to significantly compress the time between planning a change and monitoring its effect. This makes the software lifecycle 200% faster, radically improving the speed of business. GitLab and Concurrent DevOps collapses cycle times by driving higher efficiency across all stages of the software development lifecycle. For the first time, Product, Development, QA, Security, and Operations teams can work concurrently in a single application. There’s no need to integrate and synchronize tools, or waste time waiting for handoffs. Everyone contributes to a single conversation, instead of managing multiple threads across disparate tools. And only GitLab gives teams complete visibility across the lifecycle with a single, trusted source of data to simplify troubleshooting and drive accountability. All activity is governed by consistent controls, making security and compliance first-class citizens instead of an afterthought. Built on Open Source, GitLab leverages the community contributions of thousands of developers and millions of users to continuously deliver new DevOps innovations. More than 100,000 organizations from startups to global enterprise organizations, including Ticketmaster, Jaguar Land Rover, NASDAQ, Dish Network and Comcast trust GitLab to deliver great software at new speeds.

PagerDuty is an operations performance platform delivering visibility and actionable intelligence across the entire incident lifecycle. Their SaaS-based solution empowers over 10,000 small, mid-size and enterprise global customers such as Comcast, eHarmony, Slack and Lululemon with the insight to intelligently respond to critical disruptions for exceptional customer experience. PagerDuty was founded to deliver a new and innovative approach to increase business response and efficiency. When brand reputation depends on customer satisfaction, PagerDuty arms businesses with the insight to proactively manage incidents and events that may impact customers across their IT environment.

Our mission is to make every search interaction meaningful & rewarding, through developer-friendly and enterprise-grade APIs. Algolia is the leading Search & Discovery API for websites and mobile apps. We help the most innovative companies across e-commerce, media and SaaS industries create powerful, relevant and scalable discovery experiences for their users. Unlike other solutions, our hosted platform reduces the complexities of building and scaling a fast, relevant digital experience and helps teams accelerate development time. More than 9,000 companies like Under Armour, Twitch, Periscope, Medium and Stripe rely on Algolia to manage 50+ billion search queries a month. Founded in 2012, we're backed by $184M in funding from Accel Partners, Alven Capital, Point Nine Capital and Storm Ventures. The team is headquartered in San Francisco with offices in Paris, London, New York, and Atlanta. To learn more, visit www.algolia.com. --- We’re looking for talented, passionate people to build the world’s best search technology. As an ownership-driven company, we seek team members who thrive under autonomy and diversity. We're committed to building an inclusive and diverse workplace. We care about each other and the world around us, and embrace talented people regardless of their race, age, ancestry, religion, sex, gender identity, sexual orientation, marital status, color, veteran status, disability and socioeconomic background

The world’s largest omnichannel communications platform. Bird CRM powers communication between businesses and their customers — across any channel, always with the right context, and on every corner of the planet. Its products and solutions are the foundational building blocks to business communications across preferred channels, like SMS, Voice, WhatsApp, WeChat, Messenger, Email and more. Founded in 2011, Bird connects to billions of devices and is trusted by nearly 20,000 customers worldwide. Headquartered in Amsterdam, Bird operates across nine global hubs — including Singapore, Dublin, Shanghai, Sydney, London, Bogota and Asuncion — and is proud to be a “Work Anywhere” company. Its team of 500 employees represent more than 55 nationalities.

At Optimizely, we're on a mission to help people unlock their digital potential. We do that by reinventing how marketing and product teams work to create and optimize digital experiences across all channels. With Optimizely One, our industry-first operating system for marketers, we offer teams flexibility and choice to build their stack their way with our fully SaaS, fully decoupled, and highly composable solution. We help companies around the world orchestrate their entire content lifecycle, monetize every digital experience and experiment across all customer touchpoints – all through Optimizely One, the leading digital experience platform that powers every phase of the marketing lifecycle through a single, AI-accelerated workflow. Optimizely has nearly 1500 employees across our 21 global offices and has 700+ partners. We are proud to help more than 10,000 businesses, including H&M, PayPal, Zoom, and Toyota, enrich their customer lifetime value, increase revenue and grow their brands. At Optimizely, we live each day with a simple philosophy: large enough to serve, small enough to care. Learn more at optimizely.com.

Flock Safety provides the first public safety operating system that empowers private communities and law enforcement to work together to eliminate crime. We are committed to protecting human privacy and mitigating bias in policing with the development of best-in-class technology rooted in ethical design, which unites civilians and public servants in pursuit of a safer, more equitable society. Our Safety-as-a-Service approach includes affordable devices powered by LTE and solar that can be installed anywhere. Our technology detects and captures objective details, decodes evidence in real-time and delivers investigative leads into the hands of those who matter. While safety is a serious business, we are a supportive team that is optimizing the remote experience to create strong and fun relationships even when we are physically apart. Our flock of hard-working employees thrive in a positive and inclusive environment, where a bias towards action is rewarded. Flock Safety is headquartered in Atlanta and operates nationwide. We have raised $150M in our Series E led by Tiger Global at a $3.5B valuation.

Cognito is the highest converting ID verification system on the market. By starting with just a user's phone number, Cognito can verify their name, date of birth, address, phone, and Social Security Number. The strong link formed between a user and their phone number builds trust while reducing friction.

Acquired by Pluralsight in May 2019

Scale accelerates the development of AI within organizations of any size to deliver critical business insights and operational efficiency. Its data-centric infrastructure platform leverages RLHF (Reinforced Learning with Human Feedback) to help organizations build the strongest AI models that supercharge their business, with customers across industries including Meta, Microsoft, U.S. Army, DoD’s Defense Innovation Unit, Open AI, General Motors, Toyota Research Institute, Brex, Instacart and Flexport.

MovingLake is Fivetran for event-driven architectures. Companies such as Casai use our product to obtain orders and price changes in real time.

Designbase is the interface design tool that gives early teams design and development superpowers. Create stunning interfaces, immediately available as code, regardless of resources.

Better Code Reviews, Less Hassle, All in Slack Axolo takes your team's code review practices to the next level, integrating seamlessly with Slack to deliver real-time notifications and natural discussions.

Prompt partners with over ten thousand publishers to find you ad space on websites considered highly authoritative by ChatGPT. Your products get shown to millions of high-intent consumers, who are already in the middle of the buying process.

Ultralight is a GPU-accelerated toolkit to embed modern HTML in games and native apps. Available for C and C++ on Windows, macOS, Linux, Xbox, PlayStation, ARM64 devices, and more. Developed in collaboration with leading game studios, built GPU-first on a new, lightweight fork of WebKit.

CircuitLab makes it easier for electrical engineers, students, and electronics hobbyists to design, analyze, build, and share electronic circuits.

Zelos Cloud is the data platform for mission-critical systems that enables teams to observe, control, and test systems from prototype to production. The platform connects across entire ecosystems, capturing data from many protocols, enabling remote command execution, and facilitating team collaboration through shared workspaces and real-time annotations. By integrating data collection, processing, and visualization into one seamless pipeline, Zelos Cloud eliminates complexity and breaks down silos between engineering, operations, and quality teams.

Boundo uses generative AI to replace SDRs. Tell our platform who you're looking for, and it will find and contact high quality sales leads in a fully automated way! We’ve tuned our models to write near-human outbound sales emails with proven conversion. Best of all, we're using our own tool to do all of our sales.

EasyCode is GPT-4 powered AI that understands developer context. It gives immediate answers to developer questions specific to their codebase. 900,000 developers already use EasyCode to get unblocked & build 10x faster.

DeepSim is building an AI physics simulator. We are currently developing the only thermal simulator to meet AI chip design needs and are validating our tool with Intel. We are a team of three electrical engineering PhDs from Stanford with backgrounds in semiconductor fabrication and design.

Cosmic is a headless CMS and API toolkit to help teams build modern apps faster, together. We provide a web dashboard to create content and API tools to deliver content into any website or app. Teams benefit from using Cosmic because it eliminates the need to build and maintain their own CMS infrastructure. Teams pay a monthly subscription fee for our hosted CMS and can focus on their application logic, creating great content, and enhancing user experiences.

Almost every company that has to integrate with the legacy financial institutions, faces several challenges when it comes to the product cycle. Not only are the APIs and documentations less available, but they are also old school and ridden with errors and loopholes. On top of that, the lack of a single point of contact from the underlying institutions, makes the already long integration cycle of 5 months feel like a temple run between different departments. And since those services break and update over time, you can imagine the nightmare in terms of coordination between the tech teams. We are a full-stack platform where you can come, select your desired modules, play in the sandbox, and launch your product with the APIs and SDKs within a couple of weeks! Not only that, but we also take care of all upcoming fixes, iterations, and updates without breaking any flow. It's that easy, as it should be. Welcome to the future.

Hardware engineers spend a quarter of their time just figuring out how to get their parts made, and from who. Fabricate builds procurement software for hardware teams. We help engineers manage manufacturing feasibility and procurement across their suppliers, whether they're getting parts custom manufactured or buying them off-the-shelf.

Versive is an all-in-one research platform that helps teams make faster customer-informed decisions. - Collect richer insights: AI-moderated studies that deliver interview-quality results at the survey speeds - Accelerate your analysis: AI-assisted analysis that instantly turns transcripts into shareable insights

At Hive we worked on a product called Gencraft, an ai art generator we ramped from 0 to $1M ARR in 6 months. This inspired us to build supercontrast, an AI Copilot which empowers anyone to create and refine high quality designs and assets.

Helping product builders to listen to users at scale so they can make something people want.

We are building an AI software developer that can solve complex tasks. All of those bugs, sentry errors, feature requests can now be handled by Fume now. Just report them over Slack and tag Fume under it. Fume will solve all of them in minutes. If you find yourself copying and pasting code over to ChatGPT all the time, shoot me an email at emre@fumedev.com

Truffle AI makes it easy for developers to integrate AI agents into any software application. We do this by exposing agents as simple APIs that can be called from anywhere. Developers have used Truffle to add customer support agents into WhatsApp and analytics agents into Slack.

Silimate is the copilot for chip designers; it finds and fixes functional and PPA issues in your chip designs. Today, chip teams spend most of their 12-18 month design cycles converging slowly to functional correctness and their targeted PPA (power/performance/area). With Silimate, chip designers write correct, PPA-converged RTL code from the onset and tape out in less time.

Metoro is an observability platform specifically for service architectures running in Kubernetes. With no code changes or instrumentation you can get total observability into you clusters and the apps running inside of them. The entire installation takes < 10 minutes. Out of the box you get: Traces, Metrics (infrastructure, application and language level), Logs, Continuous profiling, Regression tracking, Network traffic inspection, Infrastructure monitoring, Alerting, Automated diagnostics

Pinnacle is an API for RCS, the new standard for SMS for app-like text messages. For example, developers can create messages that show products that can be purchased with one tap natively on iOS and Android. If you're currently using SMS from Twilio, etc, and you don't want to leave money on the table, get in touch with us - founders@trypinnacle.app with subject "YCBIO". If you're a YC company, we'll get you a free founders mode™️ hat, 1000 free msgs/mo + 24/7 real founder mode™️ support when you switch to us.

Datasaur builds intelligent, optimized, human-centric LLM/NLP tools. If you're still using Excel or maintaining your own in-house tools, Datasaur can offer you significant cost-savings and improve the quality of your training data. We provide tools custom-built for power users. Our built-in intelligence helps augment your human labelers and avoid costly mistakes; our workforce management tool allows you to assign projects to and cross-validate the results from multiple labelers to ensure you can train your models with the utmost confidence. I have 10 years of consumer product experience. I'd be happy to help discuss product strategy and gamification. I'd love to get any advice you have to offer on SaaS and enterprise sales.

DeepSource continuously analyzes source code changes to find and fix issues categorized as security, performance, anti-patterns, and bug-risks. DeepSource integrates with GitHub, GitLab, Bitbucket, and Azure DevOps and runs analysis on every commit and pull request, discovers and fixes potential issues before they make it to production.

MagnaPlay is game translation simplified into SAAS. Every game needs to be translated - a process which currently consists of finding freelancers, verifying their quality, negotiating prices, building contracts and waiting months for them to deliver. With MagnaPlay, game developers cut out the middleman and get results 5x faster, at half the price and with more reliable quality. Our combination of AI, expert translators and SAAS fully integrates translation into the gamedev workflow, ensuring games are translated and reach the worldwide audiences that love them so much.

Build and publish user interfaces quickly.

Upshift is a platform for software companies to build their entire developer ecosystem, including things like OAuth delegated access, third-party app management, and more. Up until now, only the biggest companies have had the resources to build these types of systems because it can take years and massive upfront engineering investment to ship something. We cut the time-to-production down to weeks. And this will open up previously inaccessible possibilities for mid-sized businesses and fast-growing startups. We know how to build it. For more than six years, Adam and Thomas have worked together as eng leaders, mastering our system integration expertise from Palantir and Candid Health. Our biggest win included converting an $823 million contract vehicle for the US Army, overhauling their entire data fabric.

Povio is helping founders turn visions into digital realities. With over **1,000 successful projects** under our belt and a robust team of over **200+ skilled professionals**, we are the powerhouse of innovation and design. We've partnered up with over **60 YC founders**, so we get the unique challenges you face and what it takes to build something great. A proud YC Winter 2014 alum, Povio has a legacy of startup success. Our portfolio spans diverse industries, offering bespoke solutions to giants like **Volkswagen**, rising stars like **Flexport**, and notable figures including **Serena Williams** and **Arnold Schwarzenegger.** **Why choose Povio for an extra hand with your project?** Our **400+ happy customers** and a **90% referral rate** speak volumes about our commitment to excellence. We make the software development and product design processes a seamless and delightful experience, with every project backed by top-tier managers and quality assurance analysts to ensure smooth and efficient delivery. Whether you're scaling up, launching new products, or optimizing current systems, povio.com is dedicated to propelling your growth.

Flowise uses low-code approach that enable developers to manage the whole lifecycle of building LLMs apps in production. From protoyping, evaluation, to iterations.

Dockup gives on-demand environments for engineering teams so they can merge pull requests with confidence. It works like CircleCI, but allows you to manually test and see each code changes in action with your entire tech stack without having to mock any of your services.

Nerve is a unified API that connects developers building in healthcare to health data stored in electronic health records (Epic, eClinicalWorks, Cerner, etc.). Instead of building custom integration solutions for each of their customers, developers use Nerve as the single entry point to access and maintain connections to all EHRs.

Monitor your AI app the right way. AI engineers use Raindrop to get alerts about hidden issues and successes in their AI products. Raindrop sends you alerts when your AI misbehaves and links straight to the events, so you can dig into the conversations or traces, understand the root cause, and fix it, fast.

Accelerate software development with WarpBuild. Get 30% faster, 90% cheaper CI builds in 30 seconds using WarpBuild cloud runners for Github Actions.

DataShare is a data-as-a-service platform that lets you embed charts, dashboards and exports directly into your product. For example, if you run an accounting startup, DataShare would enable you to embed a full profit and loss dashboard, with downloadable statements. DataShare is backed by an enterprise-grade data warehouse, and can be implemented in fewer than 20 lines of code.

NuMind is a tool for data scientists, data analysts, but also software engineers to create custom NLP models. For example, a recruiting company uses NuMind to find which job offers best match a given resume. Etienne (CEO) was head of Machine Learning at Wolfram Research, and Samuel (CTO) co-founded Make.org (8M users). NuMind originated from our own frustration when developing NLP models. Leveraging large language models similar to GPT-3, NuMind allows to complete NLP projects at least 10x faster than before. We launched a private beta August 2 and had 9 paying customers one month later.

When the public cloud appeared migration was easy. Existing apps running on physical servers could just be moved to virtual machines running in the cloud. The cloud is now moving towards serverless, and serverless is not backward compatible. New tools need to be created and existing apps need to be rewritten. Webiny provides developers with everything they need to build those serverless apps. We are a 100% remote team.

Andoria is building AI for enterprise training, enablement, and onboarding.

GitStart accelerates software engineers with Pull Requests as a Service. Assign tickets to GitStart Bot, go to sleep, and wake up with PRs. GitStart Bot automatically manages thousands of AI models and full-time engineers and runs peer reviews until PRs are ready to be merged. It’s scalable, flexible, and quality is guaranteed: you only pay for merged PRs.

MagiCode is an AI-powered frontend agent that writes, reviews, and rigorously tests code before pushing a PR—helping busy frontend teams offload complex, repetitive tasks from their workload.

nCompass is a platform for acceleration and hosting of open-source and custom AI models. We provide low-latency AI deployment without rate-limiting you. All with just one line of code.

Creative intelligence

Great Question puts customer research on autopilot - from recruiting participants, scheduling interviews, sending surveys or prototype tests - and sharing what you learn with your team. Companies like Adidas Runtastic, O'Reilly Media & MainStreet use us to put their customers at the center of their product, design & marketing decisions.

PoplarML lets you deploy any machine learning model to a fleet of GPUs as a ready-to-use and scalable API endpoint with one command.

Sage is a self-generating, self-maintaining knowledge base for your code with in-built chat, accelerating expertise, and comprehension of any codebase. Documentation is perpetually stale, codebases become increasingly old, large, and complex, and knowledge remains siloed within individuals and teams. As a result, engineers take 8-12 months to become fully operational, enterprise code becomes slow and unmaintainable, and core knowledge is continually lost upon engineer turnover. Sage is changing this reality. We take your code and automatically generate a symbol-level knowledge base that self-updates to remain forever fresh. We integrate with source control to pull your code and generate a symbolic graph representation of functions, classes, interfaces, types, etc., automatically determining the relevant context for each symbol, and using LLMs to annotate and propagate documentation via traversals of the symbol graph. Sage revolutionizes the way teams and individuals interact with and understand their code, ensuring that knowledge is always accessible, up-to-date, and interactive.

Veriff is a global online identity verification company that enables organizations to build trust with their customers through intelligent, accurate, and automated online IDV. Veriff’s intelligent decision engine can analyze thousands of technological and behavioral variables in seconds, matching people to more than 10,000 government-issued IDs from over 190 countries. Veriff serves a global portfolio of organizations across fintech, crypto, and mobility sectors. Founded in 2015 by Kaarel Kotkas, today Veriff serves a global portfolio of internet businesses including fintech companies, sharing economy providers and marketplaces in the USA, Europe and other places in the world. Veriff is an alumnus of the startup accelerator Y Combinator and employs 350 people in its locations in Tallinn and Tartu in Estonia; New York, in the USA, London in the UK and Barcelona in Spain.

We're building a visual application development platform to dramatically improve the time to market and quality of digital experiences. FlutterFlow helps companies and product teams improve developer efficiency, accelerate project timelines, and reduce costs for large-scale business applications. Our customers include some of the largest banking, consulting, telecom, and manufacturing companies in the world. We have more than 1.3M users in more than 200 countries and regions around the world. We’re a remote first team headquartered in the San Francisco Bay Area. We have offices in Mountain View, New York City, and Singapore.

We realized that S3 is kind of like "git for data" and have created services that make S3 function as a data hub for teams. Quilt consists of a Python Client, a web catalog for browsing and visualizing S3, and a CloudFormation backend for compute and identity management.

Replit is the world-leading collaborative browser-based development environment -- learn, create & deploy! Join a community of 20m+ developers.

Subtrace lets developers see every request in their production backend with a single command so that they can root cause issues faster.

Jet Admin - an app builder designed specifically for creating internal tools, admin panels, external portals, inventory apps, and other business applications really fast and without coding. In Jet Admin, you can assemble multi-page apps with complex user flows, connected to multiple data sources. Setting up custom layouts, adding custom actions and workflows, binding and transforming dynamic values, using conditional rules and validations - all is done through a drag & drop and point & click visual builder. We’ve also added a variety of developer tools, so whenever necessary, you can create custom SQL and HTTP queries, write JavaScript, create multiple environments, code, and embed custom UI components.

Spade is the next generation of fintech infrastructure. We’re building a financial data enrichment API purpose built to empower our customers to uncover the truth hidden within their transaction data. We use our vast, ground-truth merchant data set to decipher cryptic transactions, helping customers underwrite, detect fraud, build better banking infrastructure and get a unique understanding of their users’ spending habits.

testRigor is an executable specifications engine to help companies to empower their manual QA to be able to build automation 15X than QA engineers and spend 200X less time maintaining the code.

We are building tools for programmatic video creation. Revideo, our open-source framework, lets you create video templates in Typescript and render them via an API. It also provides a React player component to display changes in the browser in real-time.

Domu automates debt collection calls for the banks using generative AI. We have $870k in ARR with clients like BBVA, BNP Paribas and Skandia.

Cua is an open-source framework that enables AI agents to control full operating systems within high-performance, lightweight virtual containers. It delivers up to 90% native speed on Apple Silicon and works with any language models.

Queue is an all-in-one platform for agencies and productized services to launch and grow their business. We integrate with your website so your clients can purchase your services, access their client portal, submit tasks, review work, and everything else in between.

RunLocal helps engineering teams discover, optimize, evaluate and deploy the best on-device AI model for their use case.

We make general AI agents that can complete tasks independently. Our first general agent is called Zero. It can complete tasks across internal tools and 300+ apps using MCP servers, such as Apollo, Slack, Gmail, Notion, etc. It can take over many self-contained tasks, giving your team longer legs to run faster. It runs entirely in the cloud. This means that you can have swarms of agents completing hundreds of tasks while you’re focusing on what really matters. You can connect Zero to the applications you use or your custom MCP servers, and then just give it any task and watch it work for you. Zero is engineered to think deeply, execute complex tasks, and even maintain a personalized memory of your interactions. A few notable features: - Built-in autonomy levels, permissions, guardrails, and human approvals - Custom instructions to teach Zero how to do things your way - Automations e.g. run a task every day or whenever I receive an email - Connect to your custom MCPs - Connect to 300+ apps with one-click integrations - Natively integrates deep research and browser use

Relvy does 24x7 monitoring of production software logs to both discover and debug issues. We do this using our custom LLMs that are 200x cheaper than frontier models, which means we are the only AI that's usable at the scale of this problem.

Lightski is the Cursor for Engineering Docs: a rich-text editor and AI assistant specifically built for engineering managers and tech leads. Whether you’re writing a technical design doc, internal documentation, PRD, or peer review, Lightski helps you write higher quality documents faster with the help of AI. Lightski connects to your Github and comes with an AI agent that pulls relevant context from your codebase to help you draft. Afterwards, continue refining in our Notion-like editor, where you can collaborate, iterate, and comment on the doc.

Shogun is an ecommerce experience platform empowering brands to drive higher conversions, revenue, and brand loyalty. Our products Shogun Page Builder and Shogun Frontend help teams build and optimize their online stores to deliver exceptional experiences. Our products integrate with ecommerce platforms like Shopify and BigCommerce, and our 20,000+ customers include Leesa, MVMT, Timbuk2, and Chubbies. Visit www.getshogun.com for more. We're an inclusive, remote, diverse, and globally distributed team. And we’re hiring!

Replo designs and launches your shop and entire marketing campaign, and runs your business for you. We are building every company's ecommerce specialist. To date, we’ve raised over $8.2M from Figma, YCombinator, Vercel, General Catalyst, Infinity Ventures, MAGIC Fund, Base Case Capital.

Deepgram is a foundational AI company on a mission to understand human language. We give any developer access to the most advanced speech AI transcription and understanding with just an API call. Our models deliver the fastest, most accurate transcription alongside contextual features like summarization, sentiment analysis, and topic detection. Beyond that, developers can: 🔊 Process live-streaming or pre-recorded audio 🌎 Transcribe in dozens of languages ⚙️ Train custom models for unique use cases 🔑 Access deep NLU with a unified API 💻 Build in any programming language with our SDKs ✅ Deploy on-prem or on DG’s managed cloud 📈 Get scalable GPU infra for training and inference Deepgram is a proud NVIDIA partner and Y Combinator company, and we recently completed a $72M Series B to define the future of AI Speech Understanding, making us the most-funded speech AI company at its stage.

Partcl modernizes chip design automation with physics-informed models powered by GPU acceleration. Our tools run up to 700× faster than legacy solutions, cutting weeks off development and unlocking AI-driven optimization.

Enterprise AI without your internal data is like a computer without internet. When vital information is scattered across Slack, Notion, and Salesforce, AI tools can't deliver. And connecting dozens of those tools directly to your systems introduces significant security vulnerabilities and maintenance challenges. Capacitive offers a better way: connect us once to where your data lives, then create secure data gateways with granular cross-platform permissions, comprehensive monitoring, and robust security filtering. Supercharge tools like Cursor with product and team-level context — or use those access points via our built-in AI chat system, where your team can navigate your organization's knowledge and perform actions across platforms in one place.

Finch is the API to access payroll and HR systems. We allow admins to connect their company in a compliant and secure manner to applications. Finch integrates across providers enabling developers to access a previously closed system and are at the source of truth for employee data and money flow. Our API powers use cases across lending, insurance, benefits, FP&A, and HR applications.

Tiptap is a suite of open source content editing and real-time collaboration tools for developers building apps like Notion or Google Docs. It’s used by thousands of businesses worldwide, including LinkedIn, GitLab, Axios, and Anthropic.

Echoes gives engineering leaders visibility into the alignment of engineering efforts against the business goals and whether their deliveries are having actual business impacts. By doing so we enable engineering leaders to make informed decisions on hiring and priorities, to communicate effectively on their team's activity to their business partners/bosses/investors, and to build engagement by putting their team's work into context. We achieve this by offering a seamless way for engineers to connect their day-to-day contributions to their intent, creating the missing link between tech outputs and business outcomes.

Resend is the new email API for developers. It's designed for you to build, test, and send transactional emails at scale. If you're using Sendgrid, AWS SES, or Postmark, come talk to us.

We are building a fully local opensource software engineer. Software thrives on opensource tools and it's only right that this technology be built for all to use.

Taylor is the control panel for enriching unstructured text in real-time. Business leaders and developers use Taylor to label and build products around their free text without the infrastructure and maintenance overhead. Why Taylor? Our customers previously relied on LLMs for tagging, extracting, and enriching data. They soon hit rate limits, high latency, and accuracy issues (LLMs are optimized for generative tasks, not structured high-accuracy workflows). With Taylor, teams get access to our proprietary models purpose-built for text classification and entity extraction.

IvyCheck helps you extract hidden insights from your data and ensures high data quality and consistency. Use Generative AI in your data warehouse to transform data at scale.

Superb AI is a leading computer vision platform and professional services provider that provides enterprise-grade, end-to-end MLOps and DataOps workflows to accelerate the adoption and development of data-centric AI. Through the practical application of AI-based automation, Superb AI helps teams manage the entire ML lifecycle more efficiently, from data annotation to curation, model training, and deployment, while ensuring optimal data accuracy and consistency.

Create, share, and use custom AI code assistants with our open-source IDE extensions and hub of models, rules, prompts, docs, and other building blocks

CoLab is on a mission to accelerate the pace of innovation by helping engineering teams deliver better products faster. CoLab’s Design Engagement System (DES) enables engineering teams to have more effective design conversations, and ultimately make better engineering decisions. CoLab is trusted by Fortune 500 organizations like Komatsu, Polaris, Johnson Controls, Hyundai Mobis, Schneider Electric and Lockheed Martin.

Briefer helps data scientists and analysts build interactive visualizations and data apps using a Notion-like interface. Connect to your data sources, write SQL or Python, collaborate through comments and multiplayer editing, and run code in whichever compute environments you need.

Sizeless is a platform to help ML teams automatically run, test and improve their models to make ML reproducible and safe. Currently, ML engineers do this manually which takes weeks - we automate this down to a few clicks. ML engineers at Google shopping and computer vision startups are using our platform to shorten their ML development cycle and continuously monitor and fine tune their models. We provide ML engineers with a productivity tool set, so that they can focus on building great ML models. We developed this tool during our PhDs (Cornelius in ML at ETH Zurich and Roger in astrophysics at Cambridge), saving us and our PhD colleagues around 2 weeks per model while generating actionable insights. We launched 10 days ago, have 5 daily active users like ML engineering teams at Google Shopping and in computer vision startups and more than 50 sign ups on our waitlist. We provide ML engineers with a productivity tool set, so that they can focus on building great ML models.

Our Mission: We aim to accelerate and automate chemical process development by equipping wet-lab chemists with the power of data-driven optimization and robotic execution of experiments. The Problem: The discovery of novel pharmaceuticals is one of our most important weapons in fighting disease. However, the drug development pipeline is often held up for many months during the design of chemical processes to manufacture these drugs at scale, delaying FDA trials and lengthening the time until drug launch. Designing chemical processes involves the identification of suitable parameters such as catalyst/temperature/solvent. Currently process development is often done via tedious trial-and-error experimentation (slow) or exhaustive screening (expensive and wasteful). Our Approach: In our research, we have developed algorithms for chemical process optimization, which leverage transfer learning and Bayesian optimization. We validated the algorithms in the wet lab, showing an up to 95% reduction in required experiments and cost compared to exhaustive screening. We have made our approaches accessible to chemists through our user-friendly no-code software platform and to automated laboratory equipment with our API.

LightTwist is your virtual studio in the cloud. Record and stream video in a customizable virtual studio that you control from your browser.

We started with HeroUI, an open-source library that provides React developers with a set of 44 components to create beautiful and accessible interfaces. Now, we’re expanding our vision with HeroUI Chat (heroui.chat), an AI-powered platform that helps developers and teams build beautiful frontends in minutes

Keep is an open-source AIOps platform. Keep acts as a single pane of glass to all your alerts from any monitoring tool and helps you turn 1000s into just 10s of meaningful alerts. Keep joined forces with Elastic on May 2025.

We're building Aide, an AI-native IDE designed for engineers to enjoy problem-solving with agents by their side. We're currently a team of two, based in London, United Kingdom. Between us, we have been tech leads with experience building testing infrastructure at Meta, payment systems for 150k merchants in India, been an ACM ICPC world finalist and Open-Source contributor to critical infrastructure including gRPC and the Bazel build system. We love dev tooling, and enjoy thinking about the future of programming.

Mergent is a task scheduling API that makes it super easy for developers to schedule and manage background tasks like notifications, data processing, and third-party integrations. We provide a simple well-documented API that any developer can instantly start using straight from our website.

Penetration testing and bug bounty platform.

Intuned is an AI enabled cloud platform to author, deploy, and monitor integrations to extract web data and execute browser automation. We enable engineers to build reliable integrations to access data and complete actions on other web services when official APIs are not available or complete.

Rubbrband is building an AI artist that can imagine and edit beautiful images for you. We are on a mission to allow anybody to create great art, regardless of skill level. Rubbrband is used by creatives all around the world.

Dioxus makes it easy for developers to quickly build, test, deploy, and manage apps on every platform. We support building and deploying apps for the web, desktop, mobile, AR/VR, and many other exotic targets.

Haystack helps you review and merge code faster, without sacrificing quality. Haystack is a code review platform that breaks down pull requests into digestible chunks and lays them out on an infinite canvas, replacing traditional line-by-line diffs in GitHub with a structured, visual walkthrough.

The Sails Company was founded by the original author and maintainers of the Sails framework. In addition to free and open-source software, The Sails Company offers a full-service web & mobile studio and professional support for the tools we maintain.

Plexe connects to your data sources, discovers relevant fields and builds task-specific ML models from a problem description. Under the hood, it uses a multi-agent system to research and experiment with several model architectures, evaluate, refine and then deploy the best performing model over an API endpoint. Think of it like your own ML helper helping you go from idea to deployed ML models 10x faster.