Y Combinator Summer 2015 (S15) Companies
102 companies from the Y Combinator Summer 2015 batch, with their investors and founders.
Second Measure provides data analytics and insights derived from consumer transaction data to support investment research and decision-making. The company delivers proprietary datasets covering billions of U.S. consumer purchases with daily updates on thousands of public and private companies and brands.
4 investors
Serica operates a commodities trading platform that allows users to purchase precious metals like gold and silver through dealer partners and trade them as tokenized asset receipts on Bitcoin and other digital currency exchanges, with custody services backed by physical bullion held by custodians.
1 investor
Seva Coffee makes the Coffee Studio, a countertop robot that roasts, grinds, and brews coffee from green beans in minutes using laser technology. The company serves coffee enthusiasts and appeals to consumers seeking fresh coffee with minimal waste through compostable capsules.
1 investor
ShapeScale is a home device that uses infrared depth sensors and a high-resolution camera to create a photorealistic 3D scan of a user's body, tracking measurements and body composition over time. Aimed at fitness-focused consumers, it provides visual before-and-after comparisons to show changes in muscle and fat.
2 investors
Shotput builds software to automate logistics and fulfillment operations for e-commerce companies, handling tasks like route optimization, demand forecasting, and cost reduction across shipping and warehousing.
1 investor
Shred Video provides video and photo production technology to adventure tourism operators, enabling them to automatically create and sell cinema-quality content to customers. The platform serves adventure tour and activity businesses globally.
1 investor
SnapMagic provides an AI-powered search engine for electronics design that gives engineers instant access to digital models of electronic components. The platform accelerates circuit board and PCB design workflows for electronics engineers and product developers.
1 investor
SourceDNA provides code analysis tools that scan mobile applications to identify and track code components across iOS and Android platforms, revealing information about code quality and origins.
2 investors
Sphere is an interior fitout and construction company specializing in partitions, doors, glazing, cladding, and carpentry for commercial projects. The company delivers full fitout services for office and commercial spaces with a focus on long-term client relationships.
1 investor
Stitch is a care coordination platform that enables healthcare teams to communicate through messaging, file sharing, and real-time collaboration across devices. It provides alternatives to traditional communication methods like pagers and email for clinical settings.
1 investor
StyleBee operates an on-demand beauty services platform that connects customers with vetted hair and makeup professionals who provide services at client locations. The company serves a range of users seeking convenience in personal grooming and beauty care.
1 investor
SunFarmer develops solar energy solutions in Nepal and the US, serving customers in rural and underserved markets. The company focuses on solar water pumping and distributed solar energy systems.
1 investor
teaBOT manufactures and operates a robotic tea-brewing machine offered as an amenity service to offices and showrooms across North America. The service helps workplaces build community and employee engagement through shared ritual and workplace well-being.
4 investors
Teleport is an infrastructure identity platform that modernizes identity, access, and policy for computing environments. The company helps engineering teams reduce complexity and attack surface by simplifying trusted computing for critical infrastructure.
4 investors
Tenant Turner provides leasing automation software for property managers, handling lead qualification, scheduling, follow-up communications, reporting, and smart access coordination throughout the rental leasing process.
2 investors
Tesorio provides a Connected Financial Operations platform that automates accounts receivable workflows including collections, cash application, forecasting, and payment management for finance teams at growing companies.
7 investors
TetraScience provides a Scientific Data and AI Platform that produces AI-native scientific data and lab data management products for scientific research and discovery. The platform serves life sciences organizations seeking to accelerate scientific outcomes through collaborative data infrastructure and AI applications.
7 investors
The Ticket Fairy provides event ticketing and management software to venue operators and promoters in multiple countries, helping them handle sales, marketing, and audience analytics for live events.
2 investors
Thrive Agritech provides lighting technology solutions for agricultural operations, designed to reduce operational friction and enable scalable, profitable farming. The company serves growers and farmers seeking sustainable growth through engineered lighting systems and partnership support.
1 investor
Traversal Networks provides network intrusion detection appliances that identify lateral movement, malware, and other threats by analyzing traffic patterns and combining machine learning with human analyst review through a cloud platform.
1 investor
Triplebyte operates a marketplace connecting software engineers with growing technology companies, using assessments to match candidates with employers seeking technical talent.
3 investors
Verge Labs builds AI models trained on multimodal human patient data to predict drug targets and patient populations for clinical development, primarily in neuroscience and central nervous system (CNS) disease. The company applies frontier AI techniques to drug discovery for life sciences and pharmaceutical development.
7 investors
Vernox is a production planning system that helps construction project teams coordinate their work, identify upcoming tasks, remove obstacles, and update schedules based on progress.
1 investor
VOIQ develops AI-powered voice bots that businesses use for sales and marketing outreach.
3 investors
















