Venture Capital

Updated:

FiveNine Ventures

FiveNine Ventures deploys operator-led early-stage capital across enterprise software and deep tech from offices spanning San Francisco to Cincinnati.

FiveNine Ventures logo

FiveNine Ventures

Primary & Secondary Venture Investors | Venture Capital

General information

Firm type

Venture Capital

Year founded

AUM

Undisclosed

Location

Region

North America

Country

United States

City

San Francisco

Corporate office

San Francisco, CA, United States

Additional offices

Palo Alto · Cincinnati · Greenwich · New York · Venice · Los Altos

Sector focus

Enterprise SoftwareAI/MLCybersecurityIndustrial Tech

Frequently asked questions

What investment stages does FiveNine Ventures target?

FiveNine Ventures focuses on early-stage companies, typically leading or co-leading pre-seed and Series A rounds. The firm often serves as the first institutional investor in engineering-heavy startups. Its capital is deployed through traditional venture funds.

Which sectors does FiveNine Ventures explicitly avoid?

Based on its observed investment pattern, FiveNine does not pursue consumer internet, media, or lifestyle brands. The firm steers clear of capital-intensive industries like biotech and cleantech hardware, maintaining a disciplined focus on enterprise infrastructure software and industrial technology.

How does FiveNine source proprietary deal flow?

FiveNine's multi-office structure gives it access to engineering talent pools in cities like Cincinnati and Los Altos that are underserved by coastal-focused firms. Its operator partners draw on their own networks of founders, CTOs, and engineering leaders, creating a sourcing pipeline grounded in technical credibility rather than traditional banker-driven origination.

Is FiveNine Ventures structured as a single-family office or a venture firm?

FiveNine Ventures operates as a traditional early-stage venture capital firm, raising capital from external limited partners. There is no public evidence it functions as a family office structure. The firm manages commingled venture funds.

Does FiveNine participate in fund commitments or only direct deals?

FiveNine conducts direct investments in startups and does not publicly operate as a fund-of-funds or make LP commitments to other venture firms. Its model is centered on leading or co-leading equity rounds in individual portfolio companies.

Profile maintained by using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.

Need institutional-grade insight on venture capital firms?

Altss delivers:

Principals with verified direct contactsAllocation history by asset classOSINT-derived deal signals
Book a demo

Prefer a guided tour?

We’ll walk you through:

Interactive funding timelinesCustom mandate & allocation filters
Book a demo

Browse by category

More San Francisco Venture Capital profiles