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Heysan

Heysan was a free mobile messaging and community based in San Francisco, California. Initially Heysan provided free messaging between phones and computers, bridging IM with SMS. The service expanded into launching a mobile community and has over 1 million users doing tens of million of monthly messages. In the summer of 2007 Heysan raised a seed round from Khosla Ventures and Atomico, the venture funds of Vinod Khosla and Niklas Zennstrom. Heysan was acquired by Good Technology in May 2009.

sources
1
Evidence entries preserved.
affiliations
1
Y Combinator
competitors
6
Mapped from High Signal graph features.
status
generated
D1 lookup
last updated
2026-07-15
16:41 UTC
source evidence
Why this company exists here

Y Combinator

yc-company-directory #3199

Heysan was a free mobile messaging and community based in San Francisco, California. Initially Heysan provided free messaging between phones and computers, bridging IM with SMS. The service expanded into launching a mobile community and has over 1 million users doing tens of million of monthly messages. In the summer of 2007 Heysan raised a seed round from Khosla Ventures and Atomico, the venture funds of Vinod Khosla and Niklas Zennstrom. Heysan was acquired by Good Technology in May 2009.

source
generated read
High Signal interpretation

Heysan is classified as Other from source descriptions and fund-directory context. Similar companies below are ranked from offline product facets and meaningful description overlap; category and source affiliation can only strengthen an existing product match. For lookup-created rows, the profile starts as pending enrichment until deeper source collection runs.

mapping method
Similarity graph

Local clusters rerank extracted product concepts and description terms. The generated graph remains the fallback for sparse descriptions: offline reciprocal product-similarity graph: extracted concepts + description terms + bounded category/affiliation boosts. Minimum fallback score: 0; max competitors: 6.

discovery cluster

Companies similar to Heysan

Other · 6 peers

A deterministic local cluster built from offline product facets and meaningful description terms. Category and selected-institution affiliation provide bounded tie-breaks. Open any peer to continue exploring its cluster.

TextPayMe

match 57

Founded in 2005, TextPayMe is an SMS payment service that lets you send money to other people using cell phone text messaging. TextPayMe lets you send money to anyone else in the US with an SMS-capable cell phone, and while phone carriers may charge for the actual text message sent/received, sending and receiving money is free while TextPayMe remains in Beta. In July 2006, the TextPayMe team started working for Amazon and, as of 2011, the site redirects to an Amazon's mobile payment website. The

shared product terms: free, mobile, messag, phone; shared affiliation: Y Combinator

URX

match 49

URX empowers publishers to monetize mobile content and enables advertisers to drive mobile commerce. The world's most forward-thinking companies use URX to connect users directly to relevant commerce experiences. URX is headquartered in San Francisco and has raised $15M from Accel, Google Ventures, First Round Capital, SV Angel and Y Combinator.

shared product terms: mobile, san, francisco, rais; shared affiliation: Y Combinator

Teespring

match 49

About Teespring Millions of people use Teespring to turn their unique ideas into high-quality products. When you shop on Teespring, you’re supporting one of the independent creators in our community, as well as the causes they care about. Every product you’ll find here is made-to-order with satisfaction and quality guaranteed. That means that you get a custom product that was made for you. Headquartered in San Francisco, Teespring is venture-backed by Andreessen Horowitz, Khosla Ventures, and Y

shared product terms: community, san, francisco, million; shared affiliation: Y Combinator

Project Wedding

match 41

Finding wedding vendors is hard. In 2007, a couple started Project Wedding to tackle this problem and eventually grew it into a full-featured wedding planning site. Now part of the WeddingWire Network, Project Wedding strives to make wedding planning easier, less stressful, and more fun! Over 1 million brides come to Project Wedding monthly to interact with our supportive community and to read our curated editorial content. We know that today's weddings are all about showing off personal style w

shared product terms: community, over, million, monthly; shared affiliation: Y Combinator

Jumpchat

match 41

A platform bridging mobile text messages, email, and IM communication without needing to download anything. Users can send mass messages on any of the platforms and JumpChat will send it to the platform the receiver activates. They are currently focusing on mass mobile messaging, where users can shoot off mass messages to the groups they define.

shared product terms: mobile, messag, bridg, im; shared affiliation: Y Combinator

Maroo

match 17

CRM for creatives (acquired by Helium Ventures)

shared product terms: acquir, venture; shared affiliation: Y Combinator