Y Combinator Winter 2007 (W07) Companies

Auctomatic provides an auction and marketplace management application for individual online sellers on platforms such as eBay, Amazon, and Overstock. The tool lets sellers list items, manage sales, and optimize their selling to increase profits.

1 investor

Buxfer is a personal finance tool for budgeting, tracking spending, and managing money across accounts.

1 investor

Heysan was a free mobile messaging service and community that bridged instant messaging with SMS, allowing free messaging between phones and computers. It grew to over 1 million users and was later acquired by Good Technology.

1 investor

Octopart is a search engine for electronic components that provides data on pricing, availability, technical specifications, and reference designs for millions of parts. It is aimed at engineers who need to compare components and find technical information when designing and manufacturing electronics.

3 investors

Parakey was an early platform and set of applications aimed at merging the desktop environment with the Web, sometimes described as a web-based operating system intended to make common computer tasks more intuitive for everyday users. The company was acquired by Facebook in 2007.

2 investors

Socialmoth operates an anonymous social community where users post thoughts, gossip, and secrets and receive updates when friends post. The company is launching Disenchat.com, an email-verified forum for anonymous workplace discussion within organizations.

1 investor

Tsumobi develops a mobile messaging technology that uses its own programming language on top of J2ME, letting developers deliver and update mobile applications on the fly through URLs on Tsumobi-enabled sites. It targets mobile application developers seeking easier distribution and upgrades.

1 investor

Twitch operates a live video streaming platform focused on gaming, where users broadcast, watch, and chat about video games. It serves casual gamers, professional players, tournaments, leagues, game developers, and gaming media organizations.

12 investors

View3 makes fusion splicers for optical fiber, using active clad-alignment and high fiber image magnification. The product is positioned as a reliable tool for splicing fiber.

1 investor

Virtualmin offers a server administration program aimed at non-technical users, positioned as an alternative to tools like Plesk. It supports simple installation of common software such as content management systems and allows website administration from desktop and mobile devices.

1 investor

Weebly is a website-building service that lets individuals and entrepreneurs create sites to showcase work, communicate with clients, and sell to buyers, with free and premium plans. Its sites are optimized for computers, phones, and tablets and are offered in 11 languages.

5 investors

Whitenoise is a social network and business management platform for the music industry, offering tools for bands, agents, publicists, and venues. Bands can plan cross-country tours and find gigs via venue search, while venues can discover local artists, hear samples, and contact agents to book shows.

1 investor

Writewith is a collaborative writing web app for creating, editing, and publishing documents with a group, offering real-time collaboration, task assignment, version control, and in-document commenting. It is used in beta testing by 15 college newspapers, including Stanford and two of Canada's largest college papers.

1 investor

Zenter was a web-based presentation application offering PowerPoint-style functionality along with the ability to pull in content from the web and share slide shows in a public library for others to remix. The company was acquired by Google in June 2007.

2 investors