Where does Jim O'Brien work?

Jim O'Brien is Founder / Managing Partner at Actuate Ventures.

What check size does Jim O'Brien write?

Jim O'Brien typically writes checks of $100K – $5M.

Where did Jim O'Brien go to school?

Jim O'Brien studied at Princeton University (B. A., History); Chaminade High School.

Jim O'Brien

Investor

Founder / Managing Partner at Actuate Ventures · Managing Director at Altaris Capital Partners

New York, New York, United States

Writes $100K – $5M checks · typically $1.5M

Find your path to Jim

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Ask Chris Le to introduce you to Jim

You →Chris · together at Actuate Ventures (2023–2026) →Jim

Ask Jamie Chen to introduce you to Jim

You →Jamie · 2 people · together at Actuate Ventures →Jim

Ask Sam Okafor to introduce you to Jim

You →Sam · 8 people · together at Altaris, LLC →Jim

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We rank every route by how warm it is, so you raise on warm intros instead of cold emails.

Experience

Altaris, LLCManaging Director2010 — 2026
Bank of America Merrill LynchInvesment Banking2008 — 2010
Bank of America Merrill LynchEquity Capital Markets2006 — 2008

Colleagues at Actuate Ventures

Andrew Woodfield

Managing Partner at Actuate Ventures

Chris Le

Managing Partner at Actuate Ventures

Josh Wagner

General Partner at Actuate Ventures

Tom Boyer

General Partner at Actuate Ventures

Zee Schwab

Investor at Actuate Ventures

Network4

Ailyn Fun

Managing Director at Altaris Capital Partners

Daniel Tully

Managing Director at Altaris Capital Partners

Garikai Nyaruwata

Managing Director at Altaris Capital Partners

George Aitken-Davies

Managing Director at Altaris Capital Partners

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

Frequently asked questions

Who is Jim O'Brien?: Managing Director at Altaris Capital Partners
Where does Jim O'Brien work?: Jim O'Brien is Founder / Managing Partner at Actuate Ventures.
What check size does Jim O'Brien write?: Jim O'Brien typically writes checks of $100K – $5M.
Where did Jim O'Brien go to school?: Jim O'Brien studied at Princeton University (B. A., History); Chaminade High School.

Same school

Also attended Princeton University1,027

Fabrice GrindaCo-founder & Managing Partner at FJ Labs Ryan SheaCo-founder of Blockstack (Stacks)Dario AmodeiCo-founder & CEO of Anthropic Fei-Fei LiCo-founder & CEO of World Labs; Sequoia Professor of Computer Science at Stanford AndrewAdvisor at Clear Ventures Christal NgAssociate at Golden Gate Ventures

+ 1,021 more

Also attended Chaminade High School27

Matthew SaittaPrincipal at Silverton Partners Rich SgalardiGeneral Partner at Castle Island Ventures Marc MunfaInvestor at Silversmith Capital Partners Ryan LeePrincipal at Comcast Ventures Colin FraserPrincipal of Concept Development at JUXTAPOSE VENTURES Kyle SquillarioInvestor at Susquehanna Growth Equity

+ 21 more

Shared employers

Also worked at Altaris, LLC8

Anson MacKinneySenior Associate — Ventures at Energize Ventures George Aitken-DaviesManaging Director at Altaris Capital Partners Lana DweikInvestor at Altaris Capital Partners Nicholas FulcoManaging Director at Altaris Capital Partners Garikai NyaruwataManaging Director at Altaris Capital Partners Myles TangSenior Associate at Altaris Capital Partners

+ 2 more

Also worked at Bank of America Merrill Lynch864

Hans TungManaging Partner at Notable Capital Anthony LinHead of Intel Capital, Corporate Vice President at Intel Capital NoorPartner at Clear Ventures Kesha CashFounder & General Partner at Impact America Fund Aftab MathurManaging Director at Temasek at Golden Gate Ventures Andrew WallaceVice President, Revolution Growth at Revolution

+ 858 more