Y Combinator Summer 2017 (S17) Companies

Opearlo is a digital platform that provides online services focused on speed, security, and user experience for businesses, organizations, and individuals seeking to improve productivity and efficiency through modern technology.

1 investor

Passerine Aircraft designs electric aircraft that achieve flight by launching from a jumping mechanism rather than using conventional takeoff methods.

1 investor

Pathrise offers career coaching, networking access, and job search software to help individuals find employment, collecting payment only after successful placement.

2 investors

Percept.AI builds AI systems that handle customer support interactions for businesses, using natural language processing to improve support team productivity and responsiveness.

2 investors

Piggy is a mobile investment platform that allows users in India to buy mutual funds directly and track their holdings without intermediary fees.

5 investors

Plasticity develops natural language processing technology and APIs for companies, organizations, and developers, enabling applications like social media monitoring, document analysis, search, and information extraction.

2 investors

Polly is a polling application that lets users create and share multiple-choice surveys on Snapchat, Instagram, and other social platforms. The tool serves both casual users seeking to gather opinions and brands or creators looking to collect feedback from their audiences.

1 investor

Pop Meals is a digital food and beverage company that uses AI, data, and automated smart kitchens to prepare and deliver affordable meals to consumers. Serving customers in Malaysia, it offers in-app ordering with recipes that evolve based on customer feedback and popularity rankings.

5 investors

PreDxion Bio develops rapid diagnostic tests using saliva samples and a scalable semiconductor-based platform, initially targeting SARS-CoV-2 detection for asymptomatic and presymptomatic individuals, with broader applications in monitoring immune response markers in critically ill patients and predicting complications from cell therapies.

1 investor

Prelim provides software that enables banks and financial institutions to automate and improve their account opening workflows.

1 investor

PullRequest was a marketplace and platform for on-demand code review, connecting development teams with expert reviewers who checked pull requests for quality and security issues. Acquired by HackerOne in 2022.

3 investors

Py operates mobile apps and a hiring platform that uses skills assessments to match candidates with tech jobs. The platform serves both job seekers learning through lessons and quizzes, and employers seeking to evaluate candidates based on demonstrated abilities rather than traditional resume screening.

3 investors

Pyka develops all-electric cargo aircraft for military logistics applications. The company delivers autonomous aircraft to the U.S. Air Force through AFWERX to support contested logistics operations.

15 investors

Rabbet is a data management platform for real estate professionals that centralizes project and capital data to improve decision-making and operational efficiency. The platform serves owners, capital partners, and real estate teams managing large portfolios.

9 investors

Relationship Hero connects people with professional relationship coaches for one-on-one guidance via chat, phone, or video. The service matches users with a coach based on their situation and goals to work on communication, dating, and relationship challenges.

3 investors

Releaf builds climate-resilient agriculture solutions for smallholder farmers in Africa through supply chain, agronomic expertise, and hardware-software integration. The company aims to improve farming sustainability and economic prosperity across the continent.

5 investors

Rev Genomics uses genomic selection, tissue culture, and molecular analysis to develop high-value crop cultivars for breeders and seed banks. The company creates novel plant phenotypes and provides molecular fingerprinting and breeding technology primarily for specialty crops in California.

2 investors

Ribbon Health was a healthcare data platform providing APIs with accurate information on providers, insurance plans, costs, and quality of care to power care navigation and provider directories. Acquired by H1.

10 investors

RideAlong provides software that delivers contextual information to police officers responding to situations involving people with mental illness, including de-escalation guidance and local service referrals.

1 investor

Roofr operates a digital platform for the roofing industry that uses satellite imagery to generate instant roofing estimates, connecting contractors and homeowners to streamline the sales and estimation process.

8 investors

Routable provides business payment infrastructure and automation for accounts payable teams, enabling instant payments through FedNow and Real-Time Payments to US bank accounts, and automating invoice processing with features like PO-matching and AI-powered bill coding. The platform also supports cross-border payments and vendor compliance screening.

7 investors

SafeButler is a free price comparison service that aggregates insurance policies from multiple providers and helps users find affordable options. It serves individuals seeking insurance coverage in the United States.

3 investors

Semantix designs, builds, and operates AI-driven intelligent enterprises at scale, transforming complex business environments through orchestrated data, artificial intelligence, and enterprise operations. The platform serves large organizations seeking to evolve from traditional IT toward autonomous operations powered by intelligent agents and continuous optimization.

1 investor

Sixty operates a marketplace connecting users with technical experts for short-duration screenshare sessions to assist with web design, development, and software implementation tasks, billed per minute.

1 investor