Y Combinator Summer 2017 (S17) Companies
121 companies from the Y Combinator Summer 2017 batch, with their investors and founders.
Disclosures.io provides software that accelerates the home listing process and gives buyers access to property information, serving residential real estate agents and consumers.
1 investor
Dropleaf operates a subscription service offering unlimited access to independent PC games, with tools for players to discover titles suited to their preferences and a platform designed to increase visibility and revenue opportunities for indie developers.
1 investor
Eduflow provides a platform for instructors to create interactive learning activities that engage students across educational institutions and corporate training programs, positioning them as active participants rather than passive consumers of content.
2 investors
Elucd provides a platform that transforms raw data and information into actionable insights to help organizations make informed decisions. The platform serves leaders across industriesβfrom corporate executives to nonprofit directors and public sector officialsβby offering real-time sentiment tracking, behavioral analysis, and clarity on what matters most to their goals.
1 investor
Entocycle uses industrial automation and machine learning to convert organic waste into animal and plant feed by breeding black soldier fly larvae at scale. The company addresses protein demand and food waste in global agriculture and aquaculture.
5 investors
Enzyme develops a Quality Management System (QMS) software platform for life science companies including drug, biologic, device, and digital product manufacturers, designed to streamline regulatory workflows and generate FDA-ready documentation.
1 investor
Escher Reality provides an API platform that handles backend infrastructure and services for augmented reality applications.
2 investors
A social platform that enables group video calls for both existing friendships and meeting new people.
3 investors
Fastpad provides recruitment software designed for the Indian market that filters out fraudulent applications and gives employers condensed profiles of genuine job candidates.
1 investor
Hygglo is a peer-to-peer marketplace where individuals can rent items from their neighbors rather than purchasing them new. The platform connects people who want to borrow equipment, tools, cameras, and other goods with local owners willing to rent them out.
2 investors
Fazz Financial provides integrated financial services solutions for businesses and consumers, supporting daily digital financial needs and business operations in Indonesia.
3 investors
Feather operates a furniture rental platform where customers can pay monthly toward potential ownership or return items for refurbishment and reuse, with options to swap pieces as needed. The service targets city dwellers and businesses seeking flexible furnishing solutions while diverting used furniture from landfills.
3 investors
Flock Safety provides a platform that connects neighborhoods, businesses, and law enforcement to share verified incident information and enable coordinated emergency response based on shared evidence.
18 investors
Flowspace provides end-to-end fulfillment and logistics services for e-commerce brands, offering warehousing, order management, and logistics support across the United States.
7 investors
FollowUpThen provides email productivity tools for teams, allowing members to manage follow-ups and customize workflows through optional add-on skills. The company serves productivity-focused teams seeking flexible, usage-based email management solutions.
1 investor
Forever Labs operates a stem cell banking service that collects, processes, and cryopreserves adult stem cells from individuals for potential use in future regenerative therapies. The company connects patients with a network of board-certified physicians across the United States and coordinates cell storage and therapeutic activation.
3 investors
Gameday is a sports prediction platform where users make picks across different sports and compete on live leaderboards. The platform enables same-game predictions (SGPs) for football with plans to expand to additional sports.
1 investor
Mostbet is a mobile betting and casino platform offering sports betting, casino games, poker, and virtual sports accessible via Android and iOS apps as well as web browsers. The platform operates as a licensed online gambling service available in over 90 countries.
1 investor
Gem is an AI recruiting platform that helps talent acquisition teams find candidates and hire faster. It serves recruiting teams at startups and enterprises.
5 investors
Goodcover offers renters insurance using a cooperative membership model that returns unclaimed premiums to members as annual dividends. The company delivers insurance through a digital-first platform with human support, operating as a fully licensed provider across 41 U.S. states.
1 investor
Greo is a mobile app that allows users to record and share video-based conversations focused on current events and news topics.
3 investors
Guggy built an API that parsed text messages and slang to automatically generate contextual GIF responses, which was integrated into major messaging platforms; the company also created Bits, a mobile app for comedians and other creators to produce short-form video content.
1 investor
A group communication platform for gaming communities that includes built-in calendars, discussion boards, and additional collaboration tools.
2 investors
Headstart is applicant matching and management software that uses machine learning to help early talent teams hire fairly by reducing discrimination based on demographic characteristics. The platform serves businesses seeking to improve diversity and hiring outcomes by contextualizing candidate data beyond traditional credentials.
1 investor



















