# Mainsail Partners

> Mainsail Partners is a growth equity firm that backs bootstrapped, founder-led B2B software companies and helps them scale. Founded in 2003 by Summit Partners alumni Gavin Turner and Jason Payne, the Austin- and San Francisco-based firm has raised nearly $4 billion in committed capital, partnered with more than 100 companies, and pairs each investment with a large in-house operations team that helps founders recruit executives, build products, and grow revenue without giving up control.

- **Founded:** 2003
- **Headquarters:** San Francisco, United States
- **Founders:** Gavin Turner (Co-Founder & Managing Partner), Jason Payne (Co-Founder)
- **Team size:** 70+ (including a 26-person portfolio-facing value creation team)
- **Products:** Growth Equity Investment, Mainsail Operations / Growth Team, Mainsail AI Labs, LEAP Talent Program
- **Notable:** Raised nearly $4 billion in committed capital across seven funds over 22 years., Closed Fund VII at its $1.535 billion hard cap - the largest in firm history - oversubscribed and in under 100 days., Partnered with more than 100 bootstrapped software companies.

## Products & services

- **Growth Equity Investment** — Minority and majority investments of roughly $30M-$60M in bootstrapped B2B software companies with $4M+ in recurring revenue, in vertical SaaS, fintech, healthcare IT, and infrastructure/security software.
- **Mainsail Operations / Growth Team** — A 26-person, portfolio-facing team of former Heads of Product, Pricing and Sales, VPs of Marketing and CX, CTOs, CFO, and legal professionals who help portfolio companies recruit executives, accelerate product, scale go-to-market, and build data infrastructure.
- **Mainsail AI Labs** — An internal program that helps portfolio companies build AI-first products and teams and adopt AI to drive productivity.
- **LEAP Talent Program** — A leadership and talent-development program for people across Mainsail's portfolio companies.

## Achievements

- Raised nearly $4 billion in committed capital across seven funds over 22 years.
- Closed Fund VII at its $1.535 billion hard cap - the largest in firm history - oversubscribed and in under 100 days.
- Partnered with more than 100 bootstrapped software companies.
- Built a 26-person in-house operations team of former software operators.
- Expanded to a dedicated Austin office in 2021 to be closer to Texas software founders.

## Latest updates

- **2025-05** — Closed Mainsail Partners VII at a $1.535 billion hard cap, oversubscribed in under 100 days, bringing total committed capital to nearly $4 billion.
- **2024** — Launched Mainsail AI Labs to help portfolio companies build AI-first products and teams.
- **2021-06** — Announced a new Austin, Texas office to be closer to the region's founder-led software community.

## Links

- Website: https://mainsailpartners.com
- LinkedIn: https://www.linkedin.com/company/mainsail-partners

---

Profile page: https://yespress.io/mainsail-partners
Published by YesPress — https://yespress.io
Last updated: 2026-08-16