B2B Software and Services Startups funded by Y Combinator (YC) in Seattle 2025

Awtomic powers DTC brands with an easy-to-use subscription management and discovery platform. Starting with a Shopify app, we'll give merchants the subscription product power of premium subscription brands like Dollar Shave Club and Ipsy. As we grow our support for more eCommerce platforms and merchants, we'll help customers discover new brands through cross-sells and make it easier for them to manage their subscriptions in one place.

Our mission is to empower the world’s hiring teams to grow engaged, high-performing organizations - by delivering human connection at scale through innovative technology, commitment, and fairness. High-volume hiring is extremely broken - it is inefficient, ineffective, and biased. Our mission is to fix what is broken. We believe great hiring processes are centered around quality conversations between candidates and employers and a future where every candidate’s journey starts with a conversation - a future where candidates are considered without bias or archaic artifacts like resumes and cover letters.

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.

Matano is a modern SIEM, built for cloud-first security teams. It replaces traditional SIEM databases like Splunk or Elastic with a cybersecurity platform built on top of a cost-effective Security Data Lake.

Worklytics identifies leading drivers of employee engagement, without the need for repetitive surveys. It does this by passively analyzing anonymous collaboration data, in tools like Google Workspace and Slack, and detecting patterns that lead to greater employee satisfaction. Worklytics uses these insights to promote positive organizational change by proactively nudging leaders and managers.

Latchel is the only end-to-end platform that automates maintenance coordination and delivers best in class resident amenities. We service over 80,000 homes across over 400 customers in all 50 states of the US. We’re growing rapidly and need a Product Designer to continue our rapid growth trajectory.

Mason is the fastest way to take smart devices from idea to end user. Whether building a single-use device from scratch or scaling a line of smart products, with Mason it’s 20x faster and 10x less costly to build, deploy and scale. Digital transformation is a modern requirement but operating a hardware-dependent initiative is hard – thousands of hours and millions of dollars are at stake. The Mason Smart Device Platform is the only fully managed infrastructure for developing and delivering dedicated devices. It offers flexible usage-based pricing for fleets of devices and manages the underlying complexity of all associated backend services, making software delivery on a smart product line—whether it’s a tablet, wearable or new form factor—as simple as delivering software in the cloud. This frees innovators to focus on what matters: application development, feature specification and UX. Granular access to add, remove or lock down capabilities makes it possible for highly customized products to be built as envisioned. Mason offloads hardware investment risks and logistics, including inventory procurement, warehousing and supply chain management. With options like zero-touch provisioning, devices can work perfectly out of the box without end user intervention. Remote fleet management, troubleshooting and automated software updates by Mason ensure security and positive end user experiences. Organizations of all sizes rely on Mason to bring innovations and hundreds of use cases to market without reinventing the wheel. Smarter from start to finish with Mason.™ AWARDS * 2023: Best Places to Work & Best Startups to Work For, Built In Seattle * 2022: Best Places to Work & Best Small Places to Work, Built In Seattle * 2022: IoT Health & Wellness Innovation of the Year, IoT Breakthrough * 2022: Bronze Stevie® Award - Emerging Technology, The 2022 American Business Awards® * 2021: Deloitte Technology Fast 500™, Deloitte * 2019: Tech Impact Awards, Mobile - Silver, Seattle Business magazine Follow us on LinkedIn | https://www.linkedin.com/company/mason-america/

Dyspatch by Sendwithus is a powerful communications platform built around advanced email content management. Our platform simplifies transactional email creation with a robust API, an easy to use editor, and built-in device testing, allowing for truly collaborative email strategy and execution. A centralized hub for email creation, approval, and publishing, our cloud-based solution empowers Product, Marketing, CRM, and Loyalty teams to efficiently build and test meaningful, dynamic communications without involving developers or deploying code. And with built-in support for 300+ locales, your teams can seamlessly manage localized content for global communications. Easily connect your cloud email provider or customize your integration to connect to your digital messaging service. Upload your existing templates in minutes. And from there, you’re well on your way to optimizing every email you send.

Shelf Engine helps businesses increase sales by accurately predicting the perfect amount of perishable goods to order, thus reducing food waste.

Worksphere helps companies manage a hybrid workplace where employees work from the office and from home. We allow employees to reserve a desk, know who will be in office, and better coordinate in-person meetings. Companies can let go of unused office space and save money.

We build software to help restaurants manage their third-party delivery online orders.