Venture Capital

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Annex Ventures

Annex Ventures is a San Jose-based venture firm making concentrated seed bets on enterprise infrastructure and applied AI.

Annex Ventures logo

Annex Ventures

Annex Ventures supports early to mid-stage funding for individual entrepreneurs and start up companies in the high tech, biotechnology and medical device markets.

General information

Firm type

Venture Capital

Year founded

AUM

Undisclosed

Location

Region

North America

Country

United States

City

San Jose

Corporate office

San Jose, CA, United States

Sector focus

Enterprise SoftwareAI/MLFinTech

Frequently asked questions

Does Annex Ventures lead seed rounds?

Annex Ventures structures itself to lead or co-lead seed financings for enterprise software and infrastructure startups. The firm aims for a concentrated portfolio where it can take a board-adjacent role for a small number of companies per vintage.

What is Annex Ventures' geographic focus?

The firm invests across North America with an emphasis on the San Francisco Bay Area and New York. Its San Jose headquarters gives it particular access to South Bay enterprise founders coming out of companies like Cisco, ServiceNow, or adjacent storage and semiconductor ecosystems.

What sectors does Annex Ventures avoid?

Annex Ventures does not advertise exclusions, but its stated focus on enterprise software, AI/ML, and FinTech suggests it typically passes on consumer social, biotechnology, and hardware-intensive deep tech that requires capital expenditures above what a seed fund normally supports.

How does Annex Ventures source deals?

Proximity to the South Bay operator network is Annex Ventures' likely primary sourcing channel. The firm probably draws from senior engineers and product leaders at established public tech companies who leave to start enterprise SaaS or infrastructure companies.

Does Annex Ventures reserve capital for follow-on investments?

The firm maintains selective follow-on reserves to support growth-stage rounds for its top-performing seed investments. Allocation ratios between initial seed deployment and reserves are not publicly disclosed.

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