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 who has co-founded a number of analytics and machine-learning companies in Seattle which were acquired by the likes of Nielsen/NetRatings, Microsoft and Hulu. Jay enjoys playing music, tinkering with the latest tech gadgets and technologies. 🎸

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! 🎾

Jason Flateboe

Jason has led design for multiple Madrona-backed startups. He also had design roles at Microsoft, Alaska Airlines, and most recently led a design team at eBay. Jason enjoys the outdoors, building stuff around the house, and chasing his kids around. 🏃

Ejiro Akporobaro

Ejiro is a seasoned software engineer and architect who has worked extensively with mobile, cloud and data science technologies. In addition to spending a decade at Disney, he has worked with several early stage startups. He enjoys playing soccer and experimenting with emerging technologies. ⚽️

Ben Zulauf

Ben is a developer and entrepreneur. He co-founded Nudgepad, an IDE in the browser, which was acquired by Microsoft in 2014. He spent the last three years working on the Microsoft Azure platform. Ben enjoys playing soccer, surfing and chasing after his 1-year-old son. 🏄


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