Fundraising Fox

Mainsail Partners

Growth equity

Austin · Growth · 95 people tracked

Also known as MAINSAIL MANAGEMENT COMPANY, LLC

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Investment thesis

Mainsail Partners focuses on growth equity investments in B2B software and AI-enabled businesses, particularly companies that have been bootstrapped by their founders. The firm positions itself as a hands-on partner helping these companies scale into vertical market leaders, emphasizing operational support and long-term collaboration with founding teams.

Source: firm website, verified Aug 3, 2026.

Stage
Growth
Check
$10M – $75M
HQ
Austin, US
Instruments
Equity
AUM
$4B
Tracked investments
61

Team · 95 people

from the firm's website
C. Jason Payne· Co-Founder & Senior Advisor
Anthony Hayes· Partner
Phil Stern· Partner
Taylor McKinley· Partner
William Salisbury· Partner, CFO, CCO
KC (Kanoff) Wulff· Principal
Andrea McNees· Senior Manager, GTM Strategy & Operations
Ania Frankel· Senior Director, Internal Operations
Anurag Sharma· Associate
Apoorva Polisetty· Talent Director
Bill Simpson· CTO-in-Residence
Brian Russell· Vice President, Pricing
Bryan Shulte· Data and AI Architect
Chloe Harbilas· Associate
Chrissy Pascali· Growth Manager
Cleo Nguyen· Deputy Chief Compliance Officer
Collin Riccitelli· Senior Associate
Colten Habecker· Senior Associate
Connor Manion· Growth Manager
David Lipka· Associate
Douglas Smith· Growth Manager
Duke Skarda· CTO-in-Residence
Elizabeth Harkness· Vice President, People
Erin Sedloff· Chief Legal Officer
Garret Jackson· Vice President
Gerrit Jansen van Vuuren· AI Software Engineer
Hannah Yerex· Senior Associate
Henry Prentice· Senior Associate
Jackie Friedman· Vice President
Jaclyn Zalesky· Senior Growth Manager
Jade Von Aesch· Administrative Assistant
Jake Libenson· Associate
James Moore· Growth Manager
Jemma Sellem· Executive Assistant
Josh Giglio· Executive-in-Residence
Julio Palacio· CTO-in-Residence
Justin Lontok· Fund Accountant
Justin Streicher· Associate
Kathy Tran· Executive Assistant
Kennedy Kindred· Administrative Assistant
Kyle Ludvik· Executive-in-Residence, Product
Kyle Young· Vice President, Revenue Operations
Lindsey Klaff· Chief of Staff
Marie Henneburg· Director, Operations and Investor Relations
Marie St. Claire· Talent Director
Meg Heinz· Vice President, Payments
Michael McEuen· Senior Director, Demand Generation
Nat Kunes· Executive-in-Residence
Nick Olsen· Head of AI Innovation
Owen Rupp· Associate
Paul Meyer· Vice President
Prescott Nasser· CTO-in-Residence
Raymond Reyes· Associate
Richie Hrncir· Associate
Sarita Ray· Senior Marketing Manager
Sebastian Lapcevic· AI Software Engineer
Sunny Prasla· Manager, FP&A
Tara Zahiri· Vice President
Teresa Zimmerman· Vice President, Marketing
Vincent Stevens· Senior IT and Security Engineer
Will Martin· Senior Manager, FP&A
Zara Martin· Director of Administration

What they invest in

from 4 of 61 portfolio companies

Enterprise Software ×3SaaS ×3E-commerce ×2Construction Tech ×1Consumer ×1Direct to Consumer ×1Future of Work ×1Impact & Social Good ×1

HQs:United States×11

Investments · 61 tracked

founders shown can be your intro path
Brilliant Earthbrilliantearth.comin𝕏NASDAQ: BRLT

Brilliant Earth is an online jewelry retailer focused on sourcing and selling ethically-produced gemstones and precious metals.

ConsumerDirect to ConsumerE-commerceImpact & Social GoodSan Francisco, US

Beth Gerstein(Co-Founder & CEO)Eric Grossberg(Co-Founder)

Mint Aggregator LPSEC filingmedium confidence

New York, US

BoardLouis Kinsella(Director)Bill Salisbury(Director)Renaat Ver Eecke(Director)David Issott(Director)Rebecca Yu(Director)

Board seatVinay Kashyap· per SEC Form D · filed Feb 2025

Nexus Systems HoldingsSEC filingmedium confidence

Falls Church, US

Jennifer Coolidge(Executive Officer, Director)Gavin Turner(Director)Vinay Kashyap(Director)Thomas L. Coolidge(Executive Officer, Director)

Board seatVinay KashyapGavin Turner· per SEC Form D · $27.9M raise · filed Oct 2016

Apptega

Provides cybersecurity compliance software that unifies security processes, tracking, and reporting across multiple frameworks.

Atlanta, US

Jacob Ferro(Director)Mike Dowdle(Director)Armistead Whitney(Executive Officer, Director)

Aspire
Bio Optronics
Boostlingo
Cash Management Solutions
Centerbase
Chirohd

Marietta, US

Matt Kibikas(Director)Gabriel Doty(Executive Officer, Director)Jason Helfrich(Director)Luke Doty(Executive Officer, Director)McPherson Moore(Director)

Convexservicetitan.comin𝕏

ServiceTitan provides software to home and commercial services contractors (plumbers, electricians, HVAC, etc.) to manage their operations, customer relationships, and business growth.

Construction TechEnterprise SoftwareFuture of WorkSaaS

Ara(Co-founder)Vahe(Co-founder)Vahe Kuzoyan(Executive Officer, Director)William Hsu(Director)Michael Brown(Director)Byron Deeter(Director)

Courtreserve
Esecuritel
Extensivextensiv.comin𝕏

Extensiv provides software for omnichannel fulfillment, enabling brands and third-party logistics (3PL) providers to coordinate warehouse operations and order management.

E-commerceEnterprise SoftwareLogistics & Supply ChainSaaS

Fairwarning
Fexa
Fieldflo
Fieldroutes
Flight Schedule Pro
Flyntlok

Anchorage, US

Laura McLaughlin(Director)Steven Murray(Director)Sean McLaughlin(Chief Executive Officer, President, Treasurer)David Hoffman(Vice President and Secretary)

Forensic Logic
Fullbayfullbay.comin𝕏

Fullbay is a software platform designed for heavy-duty truck and trailer repair shops to manage service operations, technician productivity, parts inventory, and invoicing.

Enterprise SoftwareSaaS

Fusion
Gtreasury
Inn Flow
Innergy
Inspect Point
Instinct Science

Furlong, US

Caleb Solomon Frankel(Executive Officer, Director, Promoter)

Ips Learning
Jobnimbus
Linenmaster
Liv
M A Com Technology Solutions Ipo
Mirrorweb
Ncontracts
Ncourt
Netchemia
Nexus Systems
Novus Biologicals
Path Logic
Paylease
Perahealth
Planhub
Playmaker Health
Professional Healthcare
Proshop
Red Oak Compliance Solutions
Rentvine

Estero, US

David J Borden(Executive Officer, Director, Promoter)James C Carter(Executive Officer, Director, Promoter)Jonathan R Ewen(Executive Officer, Director, Promoter)

Resman
Sentryone
Servicecore

Lakewood, US

Erick Tonkyn(Director)Elodie Dupuy(Director)Ori Staub(President and Chief Technology Officer)John Gadeken(President, Chief Operating Officer and Secretary)Jessica Davis(Director)

Skimmer

Austin, US

Peter Freeland(Executive Officer, Director)Shane Skiffington(Director)Roger Kafker(Director)Jack Nelson(Executive Officer, Director)

Smartmoving
Sourcescrub
Steelhead Technologies
Steelwedge Software

Pleasanton, US

Pervinder Johar(Executive Officer, Director)David Hersh(Director)Gavin Turner(Director)Glen Margolis(Director)David Anderson(Director)Lisa Barbot(Executive Officer)

Syncro
Teamfront
The Bar Method
Togos

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.

Frequently asked questions

What stage does Mainsail Partners invest at?
Mainsail Partners invests at the Growth stage.
What is Mainsail Partners's typical check size?
Mainsail Partners typically writes checks of $10M – $75M.
What sectors does Mainsail Partners focus on?
Mainsail Partners focuses on AI & Machine Learning, Cybersecurity, Enterprise Software, Fintech, Healthtech, SaaS.
Where is Mainsail Partners located?
Mainsail Partners is headquartered in Austin, US.

Media · Podcasts & interviews

featuring the team

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