Mainsail Partners
Mainsail Partners is an investment fund investing in United States and Canada, focused on B2B SaaS. They write Growth cheques of $10M–$75M. We hold 59 investments for them on record. 1 person is listed at the firm.
mainsailpartners.com- Sectors
- B2B SaaS
- Stages
- Growth
- Geographies
- United StatesCanada
- Cheque size
- $10M–$75M
What Mainsail Partners invests in
Growth equity firm backing bootstrapped B2B software companies, providing capital and operational support to build AI-powered vertical market leaders.
People at Mainsail Partners
1 named person on record.
- Erica Curelloe•••••@mainsailpartners.com
Contact addresses at Mainsail Partners are partly hidden. Create a free account to see full addresses, a fit score against your own startup, and an outreach email written for this investor.
Mainsail Partners portfolio
59 investments on record. Each row says whether the round came from the fund's own portfolio page or from the press, so you can check it.
| Company | Sector | Round | Amount | Date |
|---|---|---|---|---|
| B2B SaaSUnited States | growth | $35M | Oct 2025press | |
| B2B SaaSUnited States | growth | $54M | Oct 2025press |
57 more investments on record for Mainsail Partners.
The first two are open to everyone. A free account opens the rest — the company, the round, the amount, the date and where each number came from. No card, no demo call.
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