On AI Lounge since Oct 2026
David Hassell
Member #10FounderBetaL1Founder & CEO, Stealth
Co-founder of 15Five (grew it past $50M ARR as CEO), building a stealth startup
How karma works. Everyone starts with 5. You get +1 each time another member upvotes one of your posts or comments (your own upvotes don't count), and lose it if they take the upvote back. Post what you're building, answer questions and help other members to earn more.
Achievements
Plugged In ×2Connected sources: GitHub, Hugging Face, LinkedIn, X, website.How: Connected 2 sources (GitHub, LinkedIn, X or a website) in Settings
Plugged In×2
VerifiedFounder whose ARR is verified on AI Lounge. Comes with the blue check next to their name.How: ARR verified on Lounge
Verified
Founding MemberOne of the first 500 members.How: Joined AI Lounge in the founding cohort
Founding MemberFeatured
SpotlightWas the AI Lounge Featured Member for a day.How: Featured Member
Spotlight
No posts yet
David Hassell hasn't posted yet.
About
David Hassell co-founded 15Five in 2011 and led it as CEO until 2024, growing it past $50M in ARR. He is now Vice Chairman, Co-Founder and Evangelist at 15Five and is building a stealth startup. Earlier he co-founded Endai Worldwide and served as President of Entrepreneurs' Organization San Francisco.
Stack
Raises & exits
Member RaisesCapital raised
15Five
Undisclosed
15Five
$52M
15Five
$30.7M
15Five
$8M
15Five
$2.2M
15Five
$1.6M
Experience
Vice Chairman, Co-Founder & Evangelist at 15Five | AI + Human Potential | Future of Work | Purpose-Driven Leadership
Vice Chairman, Co-Founder & Evangelist · 15Five
Chief Executive Officer · 15Five
Executive Chairman · 15Five
CEO · 15Five
Co-Founder and Facilitator · Strategy Day
EO
President · Entrepreneurs' Organization - SF
EO
Membership Chair · Entrepreneurs Organization - SF
KA
Advisor · Kite Adventures
Education
University of North Texas
