# Mainsail Partners: portfolio, investments and team > Mainsail Partners is a private equity based in United States. 17 investments on record, latest May 2019. Portfolio, stages, co-investors and team. Source: https://millionrounds.com/fund/mainsail-partners (Millionrounds; every figure on the page links to its filing or article) United States · [Investor](https://millionrounds.com/investors) # Mainsail Partners Filed with the SEC to raise a fund in Sep 2025, closing $915M. Last cheque observed May 2019. Email Quiet New fund $915M, Sept 2025 Private equity Seed Series A Series B SaaS Productivity Tools Subscription Follow Mainsail Partners and see its new cheques in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Ffund%2Fmainsail-partners) Cheques on record **0%** of best year **0** **cheques in 12 months**, 17 on record Since the last cheque **2721** days **00** hrs **00** min **00** sec Median round **$29M** Rounds led **0 of 17** Sole investor **16 rounds** Exits **1 from the portfolio** Mostly in **United States, 100%** Pitch Mainsail Partners ## Mainsail Partners highlights - 01 17 rounds on record - 02 Mostly Venture and Growth: 86% of its rounds - 03 Sole investor in 16 rounds, median $23M - 04 1 exits from the portfolio ## What they do > Mainsail Partners is a growth equity firm investing in B2B software and AI-enabled companies. From their own website - **Type:** Private equity (from a list, unverified) - **Cheque size:** Not stated - **Stages:** Seed Series A Series B Growth - **Sectors:** SaaS Productivity Tools Subscription - **Based in:** Austin, United States - **Cold pitches:** Not accepted ## The record Every round we can evidence, newest first **17 appearances** - **2019** 1 round - **May** **[Fullbay](https://millionrounds.com/company/fullbay)** US · Markets **$23M** Sole investor - **2018** 2 rounds - **Jun** **[FairWarning](https://millionrounds.com/company/fairwarning)** US · FinSMEs **$60M** Sole investor - **Jan** **[Bio-Optonics](https://millionrounds.com/company/bio-optonics)** US · Prweb **$30M** Sole investor - **2017** 4 rounds - **Oct** **[ResMan](https://millionrounds.com/company/resman)** US · FinSMEs **$36M** Sole investor - **Oct** **[GTreasury](https://millionrounds.com/company/gtreasury)** US · FinSMEs **$42M** Sole investor - **Oct** **[Forensic Logic](https://millionrounds.com/company/forensic-logic)** US · FinSMEs **$20M** Sole investor - **Jan** **[PeraHealth](https://millionrounds.com/company/perahealth)** US · FinSMEs **$14M** Sole investor - **2016** 1 round - **Oct** **[Nexus Systems](https://millionrounds.com/company/nexus-systems)** US · Wdrb **$28M** Sole investor - **2015** 4 rounds - **Dec** **[3PL Central](https://millionrounds.com/company/3pl-central)** Venture · US **$18M** Sole investor - **Jun** **[SQL Sentry](https://millionrounds.com/company/sql-sentry)** Venture · US **$25M** Sole investor - **May** **[Network Contract Solutions](https://millionrounds.com/company/network-contract-solutions)** US **Undisclosed** Sole investor - **Mar** **[Steelwedge Software](https://millionrounds.com/company/steelwedge-software)** Venture · US **$23M** With 2 others - **2014** 1 round - **Oct** **[PlayMaker CRM](https://millionrounds.com/company/playmaker-crm)** Venture · US **Undisclosed** Sole investor - **2013** 2 rounds - **Oct** **[Zen Planner](https://millionrounds.com/company/zen-planner)** Series A · US · finsmes.com **$10M** Sole investor - **May** **[Netchemia](https://millionrounds.com/company/netchemia)** Growth · US · finsmes.com **$6.5M** Sole investor - **2012** 1 round - **Aug** **[The Bar Method](https://millionrounds.com/company/the-bar-method)** US · finsmes.com **Undisclosed** Sole investor - **2011** 1 round - **Sept** **[Steelwedge Software](https://millionrounds.com/company/steelwedge-software)** Venture · US · steelwedge.com **$16M** Sole investor An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor. ## The team Named by the firm itself, on a filing, its Form ADV or its company registration **4 named** CJ **C. Jason Payne** Managing Director of General Partner. i Filing they signed GM **Gavin Mitchell Turner** Managing Director of General Partner. i Filing they signed LM **Lynn Marie Atkinson** Chief Operating Officer i Form ADV WR **William Richard Salisbury** Chief Compliance Officer, Chief Financial Officer and Operating Partner i Form ADV We also hold **70** people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them. ## What the register says From the firm's own filings with the SEC, which it must file accurately by law **$4.0B** assets it manages Oct 2026 **Registered** investment adviser full reporting to the SEC - **Legal name:** Mainsail Management Company, LLC - **SEC number:** CRD 157775 Funds on its Form ADV **10** private funds, **$2.3B** in gross assets · filed Apr 2024 - Mainsail Partners VI, L.P. *Private equity* 108 investors $963M - Mainsail Partners V, L.P. *Private equity* 94 investors $734M - Mainsail Partners IV, L.P. *Private equity* 78 investors $246M - Mainsail Partners III, L.P. *Private equity* 65 investors $135M - Mainsail 3PL Holdings, L.P. *Private equity* 55 investors $132M - Mainsail GT SPV, L.P. *Private equity* 27 investors $49M - Mainsail Partners Executive Fund VI, L.P. *Private equity* 94 investors $40M - Mainsail Partners Executive Fund V, L.P. *Private equity* 73 investors $27M - Mainsail Co-Investors III, L.P. *Private equity* 55 investors $3.0M - Mainsail Incentive Program, LLC *Private equity* 39 investors $2.4M ## Exits from the portfolio Companies it backed that were later bought or listed **1 in all** **[Netchemia](https://millionrounds.com/company/netchemia)** Bought by PeopleAdmin **Undisclosed** Feb 2015 An exit counts when it came after the firm's first round in the company. From historical deal records. New fund on file **$915M** raised in Sept 2025 From its SEC filing, not a journalist: a firm that has just raised has money to deploy. ## The cheque Seed Series A Series B Median round joined **$29M** the round, not its cheque Alone, median **$23M** Led 0 of 17 rounds **0%** - **Sole investor:** 16 rounds - **Last cheque:** May 2019 - **Exits:** 1 from the portfolio Rounds by stage said on their site - Venture *5* - Growth said *1* - Series A said *1* - Seed said *-* - Series B said *-* Cheques by year Led Joined 2011 2019 **Pitching Mainsail Partners?** Put them on your fundraising board with this record on the card, and follow them to hear when they write a new cheque. Add to your CRM *→* ## Recently backed The latest companies Mainsail Partners put money into. [**Fullbay** $23M · May 2019](https://millionrounds.com/company/fullbay)[**FairWarning** $60M · Jun 2018](https://millionrounds.com/company/fairwarning)[**ResMan** $36M · Oct 2017](https://millionrounds.com/company/resman)[**GTreasury** $42M · Oct 2017](https://millionrounds.com/company/gtreasury)[**Forensic Logic** $20M · Oct 2017](https://millionrounds.com/company/forensic-logic)[**PeraHealth** $14M · Jan 2017](https://millionrounds.com/company/perahealth) ## On podcasts 1 episode naming Mainsail Partners in the title. - [Growth Investor](https://millionrounds.com/podcasts/growth-investor) 15 Jun 2018 · 22 min Growth Investor Vinay Kashyap of Mainsail Partners and His Focus on Bootstrapped Software Companies With [Vinay Kashyap](https://millionrounds.com/person/vinay-kashyap) Mentions [Mainsail Partners](https://millionrounds.com/fund/mainsail-partners) Apple PodcastsShow page ## Quick answers about Mainsail Partners ### What does Mainsail Partners invest in? Mainsail Partners invests most often at Venture and Growth (86% of the rounds on record), in sectors such as SaaS, Productivity Tools and Subscription. ### How active is Mainsail Partners? 17 investments on record, 0 of them in the last 12 months. The most recent was in May 2019. ### What has Mainsail Partners invested in recently? Its most recent investments on record: Fullbay (Undisclosed round, May 2019), FairWarning (Undisclosed round, Jun 2018) and Bio-Optonics (Undisclosed round, Jan 2018). ### How big are Mainsail Partners's cheques? The median round it joins is $29M. ### Does Mainsail Partners lead rounds? Rarely, if at all: none of its 17 investments on record names it as the lead. ### Where does Mainsail Partners invest? Most of the companies it backs are in the United States (100%). ### Is Mainsail Partners investing now? No investments in the last 12 months; the latest was in May 2019. ### What kind of investor is Mainsail Partners? Mainsail Partners is a private equity firm based in Austin, United States. ## Raising now? Find the investors who back rounds like yours, and keep every conversation on one fundraising board. Find similar investorsOpen your CRM Built from the rounds we watched, its filings and its own website, refreshed every night. [How we count](https://millionrounds.com/methodology) · [Report a correction](https://millionrounds.com/corrections?slug=mainsail-partners) · [Is this your firm? Claim it](https://millionrounds.com/claim?org=mainsail-partners)