We turn ideas into companies.

Madrona Venture Labs is a startup studio based in Seattle and housed at Madrona Venture Group. From napkin to traction, we build meaningful companies from scratch. Then, we recruit founding CEOs and their teams to take these companies to the next level.

We consider dozens of ideas; only a precious few survive our rigorous testing and validation process. Successful ideas get access to seed capital from Madrona and others, and guidance from the top minds in the Seattle startup ecosystem.


Companies hatched at Madrona Venture Labs

Spare 5

Spare5's community members use their skills, spare time, and smartphones to generate high-quality insights for businesses.

Reply Yes

ReplyYes connects you with the things you love, every day, with a simple text. No apps, no webpages.


Essential powers intelligent messaging experiences, on multiple channels, for businesses.


We are founders and entrepreneurs on a mission to build the next wave of meaningful Seattle-based startups.

Harmony Davis

Harmony founded and led product management for a subscription marketplace at Amazon. Before that she worked in brand marketing at Starwood Hotels & Ogilvy & Mather. Harmony enjoys performing arts, puzzles, and serialized TV.

Mike Fridgen

Mike is a long-time entrepreneur, having built multiple successful Seattle companies, including Farecast and Decide. After selling Decide to eBay in 2013, Mike was the GM of eBay’s Seattle office. Mike is a Seattle startups and sports nut. 🏈

Jay Bartot

Jay is a technologist and serial entrepreneur whose startup career spans over 20 years and includes co-founding a number of data/analytics companies which were acquired by companies such as Microsoft and Hulu. Jay enjoys playing music, collecting guitars and tinkering with his 3D printer.

Aaron Wilson

Aaron led digital product development at the White House as part of the US Digital Service. Before that he was a PM at Microsoft on products including Excel, Office for iPad, and Office for Mac. He loves tennis and egg nog! 🎾


Advisors to Madrona Venture Labs and our portfolio companies.

Spencer Rascoff

CEO Zillow Group

Darrell Cavens

CEO Zulily

Jane Park

CEO Julep

Raj Singh

CEO Accolade

Dawn Lepore

Former CEO Drugstore

Oren Etzioni

CEO Allen Institute for AI

T.A. McCann

Founder Rival IQ

Jonathan Sposato

CEO Picmonkey

Andy Liu


Mark Mader

CEO Smartsheet