Y Combinator Winter 2015 (W15) Companies
108 companies from the Y Combinator Winter 2015 batch, with their investors and founders.
20n develops computational systems that use machine learning and AI to predict DNA designs, turning biological data into usable information for industrial biotech and health applications. Its customers are industrial biotech firms producing fuels, materials, therapeutics, and flavors and fragrances through biological processes.
1 investor
3dot is a think-tank company that develops ideas, products, and services using new technologies for partner companies and their customers. It focuses on brainstorming and building new offerings for clients to bring to market.
1 investor
Akido Labs is a healthcare technology company building AI-based systems intended to make healthcare more anticipatory, precise, and accessible. Founded in 2015, it focuses on applying AI to the delivery of healthcare.
14 investors
Automate Ads builds software to automate, optimize, and unify digital advertising campaigns. The company operates in the advertising analytics space.
1 investor
Bagaveev Corporation designs, builds, and tests 3D-printed aerospike rocket engines for a small launch vehicle intended to deliver 10-12 kg nanosatellites to low Earth orbit and Sun-synchronous orbit.
2 investors
Bankjoy offers digital banking software for banks and credit unions, including mobile banking, online banking, online account opening, loan applications, and conversational AI. It serves community financial institutions with an end-to-end digital banking platform.
6 investors
Bizzy is an automated, omni-channel marketing platform for ecommerce businesses that centralizes a company's marketing efforts around a single, dynamic set of customer data. The platform updates based on customer behavior and interactions to adapt and run marketing campaigns.
3 investors
Bluesmart is a travel company that makes app-connected smart luggage for travelers. It launched the Bluesmart Carry-on, described as the first smart connected suitcase.
5 investors
Bonfire is a cloud-based eSourcing and competitive bidding (RFx) platform for government procurement teams, used to run RFPs, manage bids, and evaluate suppliers. It targets public-sector procurement teams facing high compliance and workload demands.
4 investors
Booktrope was a book publishing company that used a "Team Publishing" model, pairing authors with editors, designers, and marketing managers to produce print, ebook, and web versions of books. The company is no longer in business.
1 investor
Bright is a residential solar provider in Mexico that offers financing and software enabling ambassadors and retail promoters to sell solar electricity to homes with no upfront cost, while coordinating a network of local installers and distributors. It targets homeowners in developing markets, starting in Mexico.
4 investors
BuildScience offers software for commercial building owners and operators to manage building operations and tenant services. The company states its platform has been deployed in a 1M sq.ft. Class A office building to reduce operating costs and improve tenant satisfaction.
1 investor
Chariot operates a private mass-transit commuting service aimed at offering affordable, flexible shuttle rides for city commuters as an alternative to driving. The company was acquired by Ford Smart Mobility as that unit's first acquisition.
4 investors
ByNext provides on-demand laundry, dry cleaning, home cleaning, and related services with pickup and delivery in major U.S. cities. The company serves consumers and businesses seeking convenience through its app-based platform.
5 investors
Cribspot was a multi-family property technology startup focused on apartment listings and rentals. The company and its team joined Apartment List in 2018.
1 investor
Cyberfend builds real-time security software that detects account takeover, payment fraud, and the use of stolen credentials across web and mobile applications, using machine learning and human cognitive science. It serves consumer-facing e-commerce, web, and payment companies, protecting their login and payment transactions.
2 investors
Dabble is a virtual photo studio for e-commerce that uses CGI and computer vision to generate product photography. It aims to automate and scale product imagery for online retail brands.
3 investors
Dealyze provides an in-store digital rewards and referral platform with automated marketing tools for small businesses and retailers, aimed at bringing customers back. It is positioned as a digital marketing platform for retail stores.
1 investor
Democracy Earth builds free and open-source, censorship-resistant software to deploy digital democracies over the internet. Its work includes governance infrastructure for crypto networks, shadow referendums for activists, and the first Quadratic Voting implementation in the USA for the Colorado Legislative House.
1 investor
DemocracyOS is an online platform for deliberation and voting on political proposals, intended to support more open and participatory government decision-making. It aims to facilitate better-argued discussions and rulings among participants.
1 investor
Accolade provides a platform for property teams to manage maintenance across multiple properties, capturing operational data across the work order lifecycle. It triages and routes maintenance requests to improve response times and resident satisfaction.
1 investor
eBrandValue is a business intelligence platform that uses social media data to forecast brand sales, ROI, market share, and competitive positioning for brands. It offers social media analytics including influencer tracking and meme-based netnographic segmentation to help brands measure the impact of their marketing events and campaigns.
2 investors
EquipmentShare offers equipment rental along with fleet tracking software and hardware security tools for the construction industry. Its cloud-based solutions are aimed at contractors managing equipment and fleets.
21 investors
Final is a credit card company that issues cards generating multiple card numbers managed automatically instead of a single 16-digit number, aiming to reduce payment fraud and give consumers control over merchant relationships and spending transparency. The card works online and offline and integrates with digital wallets such as Google Wallet and Apple Pay.
5 investors


















