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Graham Brooks

Investor

Partner at .406 Ventures

Boston, Massachusetts

Writes $2M – $5M checks · typically $3.5M

Kauffman Fellow · Class 13

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About

A former software engineer who joined .406 Ventures in 2007 and invests in enterprise Data + AI companies. Previously co-founded Accentus, worked in business development at Bose, and started his career as an engineer at ALK Associates; he is a Kauffman Fellow with an MBA from Dartmouth's Tuck School and a computer science degree from Princeton.

Contact· self-published, not guessed

Deals · 3

Abacus InsightsBoard seat

via .406 Ventures · filed Oct 2024 · $11.7M raise

Corvus InsuranceBoard seat

via .406 Ventures · filed Apr 2021 · $120.7M raise

AttendBoard seat

via .406 Ventures · filed Feb 2015 · $2.5M raise

Attribution from SEC filings, press coverage, and firm rosters.

Other disclosed investments

Investor

AbilToBedrock DataBobsledClosedLoopGamalonPromethiumReltioTelmai

Sources: SEC Form D filings · curated public sources.

Colleagues at .406 Ventures

Bob Darin
Executive in Residence (CEO – Blue Health Intelligence) at .406 Ventures
Bryan Adams
Executive in Residence (Advisor) at .406 Ventures
Chris Hollander
Executive in Residence (Former Chief Marketing Officer – One Medical) at .406 Ventures
Esther Dominguez
General Counsel at .406 Ventures
Greg Dracon
Partner at .406 Ventures
Joanna Skoler Gilman
Chief Marketing and Communications Officer at .406 Ventures
Joe Holtschlag
Executive in Residence (CEO – Ascellus) at .406 Ventures
Joe SantaBarbara
Chief Financial Officer at .406 Ventures

Network1

Austin Kwoun
Analyst at .406 Ventures

Investors connected to Graham in public investor directories — a warm-intro map.

Frequently asked questions

Who is Graham Brooks?
A former software engineer who joined .406 Ventures in 2007 and invests in enterprise Data + AI companies. Previously co-founded Accentus, worked in business development at Bose, and started his career as an engineer at ALK Associates; he is a Kauffman Fellow with an MBA from Dartmouth's Tuck School and a computer science degree from Princeton.
Where does Graham Brooks work?
Graham Brooks is Partner at .406 Ventures.
What check size does Graham Brooks write?
Graham Brooks typically writes checks of $2M – $5M.
What boards does Graham Brooks sit on?
Graham Brooks holds tracked board seats at Abacus Insights, Attend, Chaos Search, Corvus Insurance, Indico Data.
What companies has Graham Brooks invested in?
Investments tracked here include AbilTo, Attend, Bedrock Data, Bobsled, ClosedLoop, Gamalon, Promethium, Reltio, Telmai.

About this profile. Compiled from public sources — .406 Ventures's own website, regulatory filings and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights