Y Combinator Summer 2013 (S13) Companies
51 companies from the Y Combinator Summer 2013 batch, with their investors and founders.
A platform that connects people seeking emotional support with trained volunteer listeners via anonymous one-on-one chat, allowing users to discuss personal concerns without judgment or advice-giving.
2 investors
Amulyte develops a portable monitoring and activity tracking system designed to detect falls and help seniors maintain independent living at home without requiring a fixed base station.
1 investor
Apptimize provided a mobile A/B testing and feature-flag platform that let product teams experiment, roll out features, and optimize app experiences across mobile, web, and OTT. Acquired by Airship in 2019.
2 investors
Arcus F.I. is a regulated electronic payment institution licensed and supervised by Mexico's banking and securities authority. It operates as a fintech entity under Mastercard's corporate group.
8 investors
Asseta operates an online marketplace connecting buyers and sellers of used industrial equipment and components, providing transparent pricing and transaction support through a web-based platform.
2 investors
Audobox provides software for collecting user feedback directly within applications, designed to be accessible to both developers and end users.
1 investor
BloomThat offers same-day and next-day flower delivery through a mobile app and website, serving customers in major U.S. cities and nationwide.
2 investors
Bop.fm aggregates music from multiple streaming services into a single interface, allowing users to search, play, and share songs across different platforms. The company provides this cross-service music functionality to publishers, social networks, and messaging applications.
2 investors
Butter Systems provides restaurants with table-side ordering technology that customers can access via tablet or personal device to place food and drink orders directly. The system is designed to increase purchase frequency and reduce dependency on server availability while enabling on-site mobile payments.
1 investor
Buttercoin operates an open-source trading engine that matches buy and sell orders for digital assets on an order book. The platform serves traders and exchanges seeking high-volume transaction capacity.
1 investor
Thomson Reuters is a content and technology company providing AI-powered tools and information services—including CoCounsel and ONESOURCE—for legal, tax, accounting, risk, fraud, and government professionals. Its products support compliance, research, and decision-making workflows for professional services firms and corporations.
16 investors
CoreOS developed container-focused infrastructure software, including the lightweight Container Linux operating system, the etcd distributed key-value store, and the Tectonic Kubernetes platform. Acquired by Red Hat in 2018, with its technology folded into OpenShift.
5 investors
Cratejoy is a marketplace that curates and delivers subscription boxes and gifts tailored to user interests, ranging from wellness and self-care to collectibles and educational experiences. The platform connects buyers with independent creators and sellers who design themed product collections.
4 investors
A marketplace platform where users vote on product designs, receive personalized recommendations based on their preferences, and can pre-order selected items at discounted prices.
1 investor
DataRank offers a social intelligence platform that converts real-time social signals into insights for marketing and cross-functional teams, covering influencer marketing, employee advocacy, and media monitoring. It serves brands and enterprise teams looking to track social conversations and creator campaigns.
2 investors
DoorDash operates a restaurant delivery platform that connects customers with dining establishments across hundreds of cities in North America through a logistics network.
29 investors
EasyPost provides a RESTful API platform that simplifies shipping and logistics operations for businesses. The company integrates software solutions across the shipping and logistics ecosystem to help customers reduce operational complexity and costs.
13 investors
Echo Locker is an Android lock screen application that organizes notifications by category and displays priority alerts directly on the device's lock screen.
1 investor
Estimote develops Ultra Wideband (UWB) tags and proximity sensors for precise indoor and outdoor location tracking, automation, and asset management across warehousing, logistics, healthcare, retail, and hospitality. The tags can be programmed in JavaScript and connect via LTE to send real-time location data to customer cloud endpoints.
4 investors
FanHero provides a platform for creators and businesses to create, manage, and monetize video content. The company serves content creators and aims to enable them to achieve financial success through their work.
1 investor
Floobits provides real-time collaborative code editing within native text editors, allowing multiple developers to work on the same codebase simultaneously. The service caters to developers who want to pair program or collaborate remotely on coding projects.
2 investors
A Latin American online marketplace that matches buyers with sellers on the platform. Glio operates as an e-commerce platform serving customers in the region.
2 investors
GoComm provides real-time communications and task management software designed for teams coordinating live events and other complex operations, accessible on mobile devices.
1 investor
Graft Concepts designs and manufactures protective cases and accessories for iPhones, with a focus on user-friendly fastening mechanisms and refined aesthetics. The company works with manufacturers in multiple countries to produce small-batch products that aim to minimize visual and tactile friction compared to typical mobile accessories.
2 investors