California

Act One Ventures

Act One Ventures, based in California, backs enterprise software startups at Pre-Seed and Seed, leading rounds with checks from $1 million to $3 million.

Website LinkedIn Portfolio Pitch page Team page

Entry stagePre-seed, Seed

Check size$1M to $3M

Leads roundsYes

FocusEnterprise software

Latest fundn/a

Investing team3 peopleNo activity since Sep

Who you would pitch at Act One Ventures

3 people on the investing team, 2 of them partners who can make the call. Partners are listed first.

Alejandro GuerreroGeneral PartnerHe has been featured in various media outlets for his work on diversity initiatives and investment strategies.

Michael SiltonGeneral PartnerHe previously held roles at UCLA VC Fund, Rainmaker Systems, and UniDirect Systems.

Israel MunozPrincipalHe previously served as Vice President at L'ATTITUDE and Associate at Acrew Capital.

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Writes $1M to $3M checks. Its smallest check is larger than 83% of firms in the atlas.

Bars: how many firms in the atlas report each band. Highlighted: this firm.

No recent activity since September 2026. Quiet does not mean closed.

Weekly count of activity updates. Activity is not a confirmed deal.

Before you pitch

How to reach them[email protected]

Notable investments

AuditBoardFinixBranchSilversheetQlessStorepathRepeatJelouGAILFlossy

In their words

Act One Ventures | We Back Founders Re-Architecting the Enterprise for the AI EconomyAct One backs the founders re-architecting the enterprise for the AI economy. Pre-seed and seed. Rooted in San Francisco.www.actoneventures.com

Founders and investors at a Mode VC gathering

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Raising a pre-seed or seed round? We write $1M to $5M first checks and help founders with distribution. A partner reads every deck.

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Firms like Act One Ventures

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On these lists

Seed enterprise software investors in California84 Pre-seed enterprise software investors in California50 Seed investors in United States2836 Pre-seed investors in United States1561 Seed investors in California699 Pre-seed investors in California434 Seed enterprise software investors225 Pre-seed enterprise software investors125

Questions

What stage does Act One Ventures invest in?

Act One Ventures reports entry at pre-seed, seed.

How much does Act One Ventures invest?

Act One Ventures reports checks of $1M to $3M.

Does Act One Ventures lead rounds?

Yes. Act One Ventures says it can lead.

Who are the partners at Act One Ventures?

Alejandro Guerrero (General Partner), Michael Silton (General Partner).

Is Act One Ventures active right now?

No recent activity since September 2026.

Work at Act One Ventures? Claim or correct this profile.