Y Combinator W21 Companies

Stoke Space is a company manufacturing space vehicle components and performing scientific and technological services associated with the space industry.

Worksphere is a Seattle-based workplace management platform to help businesses create safe and flexible workplaces.

Runway is a research company pioneering new tools for human imagination. Runway has been at the forefront of multi-modal AI systems ensuring that the future of content creation is accessible, controllable and empowering for creatives.

Remora is a carbon capture for semi trucks founded in 2020 by Paul Gross.

Kilobaser is a company that has developed an express DNA machine product for printing short synthetic DNA sequences.

Aurabeat is a company developing COVID-19 HVAC systems.

Alba Orbital Limited is a Glasgow-based company that builds and designs small commercial satellite platforms.

Taloflow is an Amazon Web Services resource management tool leveraging AI for web developers.

Authologic is an unified e-ID verification platform founded in 2020 by Jaroslaw Sygitowicz, Krzysztof Klimczak and Marek Rogozinski.

ClipDrop is an application developed to turn mobile photons into professional product visuals. The application and the company behind it were acquired by Stability AI in 2023.

Capturing CO2 from the sky and re-selling it for 2x cheaper

Terra is a London-based company developing an API for health, fitness, and wellness.

Uiflow is a San Francisco-based developer of a no-code platform for enterprise software companies.

Albedo is a company capturing high-resolution satellite imagery.

Forcyte Biotechnologies is a Los Angeles-based biotechnology company, founded in 2017.

Zepto is an online grocery company.

Moichor is an animal diagnostic company providing complete blood count for animals. They focus on reptiles and birds.

QuickNode is a software development company developing tools and infrastructure for blockchain apps.

Encord is an AI data infrastructure platform founded in 2021 by Eric Landau.

Also known as Sponsorfied, Partnered is a company providing sponsorship management solutions.

Abacum is a business planning platform for financial teams founded in 2020 by Julio Martínez, Jorge Lluch and Julio Martinez.

Topline Pro is a communications suite for home service professionals founded in 2020 by Shannon Kay.

Pesto is a virtual office for remote teams.

Gigs is the operating system for mobile services. We unlock new revenue opportunities and enable seamless user experiences. From tech giants to innovative startups, we empower businesses to effortlessly embed telecom capabilities into their platforms.

Cyble is a selling earliest-stage Cyber threat alerts founded in 2019 by Beenu Arora.