What does Mainsail Partners invest in?

Mainsail Partners (San Francisco, CA, USA) — sector focus: Cybersecurity, Edtech, Fintech, Healthcare; stage focus: Growth.

How do I contact Mainsail Partners?

Mainsail Partners's published profile links (website, LinkedIn or X where available) are listed on the StartupFundraising.com investor profile.

Where is Mainsail Partners headquartered?

Mainsail Partners is based in San Francisco, CA, USA.

Mainsail Partners — Venture Capital in San Francisco

About Mainsail Partners

Mainsail Partners is a growth equity firm that invests in bootstrapped, founder-led B2B software and AI-enabled companies, typically targeting those with $4M–$25M in revenue and offering check sizes of $10M–$75M. The firm focuses on vertical SaaS, fintech, healthcare IT, infrastructure/security software, and select horizontal SaaS, with a distinctive thesis centered on high-touch, culture-first support to help these companies scale into market leaders. Notable portfolio companies include Apptega, Teamfront, and MirrorWeb, reflecting their concentration in enterprise applications and fintech.

Mainsail Partners at a glance

Location: San Francisco, CA, USA
Investor type: Venture Capital
Stages: Growth

Frequently asked about Mainsail Partners

What does Mainsail Partners invest in?: Mainsail Partners (San Francisco, CA, USA) — sector focus: Cybersecurity, Edtech, Fintech, Healthcare; stage focus: Growth.
How do I contact Mainsail Partners?: Mainsail Partners's published profile links (website, LinkedIn or X where available) are listed on the StartupFundraising.com investor profile.
Where is Mainsail Partners headquartered?: Mainsail Partners is based in San Francisco, CA, USA.

Every field above is read from the StartupFundraising firm directory — disclosed location, recorded investments and stated focus — and re-checked as filings arrive. Founders pair it with investors in San Francisco when building a target list.

Mainsail Partners

About Mainsail Partners

Mainsail Partners at a glance

Frequently asked about Mainsail Partners

Investors similar to Mainsail Partners (20)

Browse related investor lists (11)

Compare Mainsail Partners (8)