ChiroHD, a Mainsail Partners portfolio company, acquired ChiroBilling
Mainsail Partners
MediumFirm Overview
Mainsail Partners is a growth equity firm that invests in founder-led, bootstrapped B2B software and AI-enabled companies. The firm focuses on helping vertical market leaders scale through strategic growth and product innovation.
Mainsail Partners is a growth equity firm investing in B2B software and AI-enabled companies. The firm invests in founder-led, bootstrapped companies to help build vertical market leaders. Their team has worked with over 100 software companies and partners with a concentrated portfolio to maximize potential for market leadership.
The firm utilizes a purpose-built Growth and AI Team with experience in product, sales, talent, and AI to support fast-moving software companies. Their approach is collaborative and prioritizes culture and values alignment while providing capital and domain experience to help companies navigate growth opportunities and challenges.
Leadership
Portfolio by sector
- Business Services5 (36%)
- Consumer2 (14%)
- Financial Services2 (14%)
- Education2 (14%)
- B2B Software2 (14%)
- Healthcare1 (7%)
14 of 59 tracked portfolio companies of Mainsail Partners carry a sector label we can map; shares are of those 14. See the methodology.
Deals on record
2 on record in the indexSkimmer, a Mainsail Partners portfolio company, acquired Pool Builder Geek and Poologics
Deals are listed only where a public source names both sides. Submit a correction.
Portfolio on record
- Unclassified42 of 59
- Business Services5 of 59
- B2B Software3 of 59
- Financial Services3 of 59
- Consumer2 of 59
- Education2 of 59
- Healthcare1 of 59
- Media1 of 59
59 portfolio companies on record in the index, grouped by sector hub.
At least 59 companies on record, more than 71% of the 405 firms in the index.
Partial portfolio on record.
Portfolio Companies
| Company | Sector | Status | Website |
|---|---|---|---|
| Apptega | Not on record | Current | Not on record |
| Aspire | Not on record | Exited | Not on record |
| Bio-Optronics | Not on record | Exited | Not on record |
| Boostlingo | Not on record | Current | Not on record |
| Brilliant Earth | Not on record | Current | Not on record |
| Cash Management Solutions | Provider of Revenue Management Services | Exited | Not on record |
| Centerbase | Not on record | Current | Not on record |
| ChiroHD | Not on record | Current | Not on record |
| CourtReserve | Not on record | Current | Not on record |
| eSecuritel | Wireless Products Insurance Services | Exited | Not on record |
| Extensiv | Not on record | Exited | Not on record |
| FairWarning | Not on record | Exited | Not on record |
| Fexa | Not on record | Current | Not on record |
| FieldFlo | Not on record | Current | Not on record |
| FieldRoutes | Not on record | Exited | Not on record |
| Flight Schedule Pro | Not on record | Current | Not on record |
| Flyntlok | Not on record | Current | Not on record |
| Forensic Logic | Not on record | Exited | Not on record |
| Fullbay | Not on record | Current | Not on record |
| Fusion | Integrated Geophysical Technology and Services | Exited | Not on record |
| GTreasury | Not on record | Exited | Not on record |
| Inn-Flow | Not on record | Current | Not on record |
| innergy | Not on record | Current | Not on record |
| Inspect Point | Not on record | Current | Not on record |
| Instinct Science | Not on record | Current | Not on record |
| IPS Learning | Provider of Professional Learning Software | Exited | Not on record |
| JobNimbus | Not on record | Current | Not on record |
| LinenMaster | Not on record | Current | Not on record |
| LIV | Not on record | Current | Not on record |
| MACOM Technology Solutions | Semiconductor Technologies | Exited | Not on record |
| Ncontracts | Not on record | Exited | Not on record |
| nCourt | Not on record | Exited | Not on record |
| Netchemia | Talent Management Solutions for School Districts | Exited | Not on record |
| Nexus Systems | Not on record | Exited | Not on record |
| Novus Biologicals | eCommerce and Life Sciences Company | Exited | Not on record |
| Path-Logic | Anatomic Pathology Services | Exited | Not on record |
| PayLease | Not on record | Exited | Not on record |
| PeraHealth | Not on record | Exited | Not on record |
| PlanHub | Not on record | Current | Not on record |
| PlayMaker Health | Not on record | Exited | Not on record |
| Professional Healthcare | Post-Acute Services | Exited | Not on record |
| ProShop | Not on record | Current | Not on record |
| Providi | Not on record | Current | Not on record |
| Red Oak | Not on record | Current | Not on record |
| Rentvine | Not on record | Current | Not on record |
| ResMan | Not on record | Exited | Not on record |
| SentryOne | Not on record | Exited | Not on record |
| ServiceCore | Not on record | Current | Not on record |
| ServiceTitan | Not on record | Exited | Not on record |
| Skimmer | Not on record | Current | Not on record |
| SmartMoving | Not on record | Current | Not on record |
| Sourcescrub | Not on record | Exited | Not on record |
| Steelhead Technologies | Not on record | Current | Not on record |
| Steelwedge | Not on record | Exited | Not on record |
| Syncro | Not on record | Current | Not on record |
| Teamfront | Not on record | Current | Not on record |
| The Bar Method | Barre-based Fitness Studio Franchise | Exited | Not on record |
| Togo's | Value-oriented Sandwich Franchise | Exited | Not on record |
| Zen Planner | Not on record | Exited | Not on record |
This list is partial. We are reading the full portfolio from Mainsail Partners' own site.
Firms that also back Mainsail Partners' companies
Line width shows shared portfolio companies on record in the index. Top 8 co-investors shown.
- Francisco Partners2 shared companies
Gryphon Investors2 shared companies
Centana Growth Partners1 shared company
GrowthCurve Capital1 shared company
H.I.G. Capital1 shared company
- JMI Equity1 shared company
- Lloyds Development Capital1 shared company
Metalmark Capital1 shared company
Questions about Mainsail Partners
- Which sectors does Mainsail Partners invest in?
- Mainsail Partners lists B2B software, AI-enabled companies and Vertical market leaders among its focus areas. Of the at least 59 portfolio companies we can classify, the largest groups are Business Services (5), Consumer (2) and Financial Services (2).
- How many portfolio companies does Mainsail Partners have?
- PE Firm Index lists at least 59 Mainsail Partners portfolio companies as of 2026-11-04. This list is partial: the full portfolio on the firm's own site is still being read.
- What deals has Mainsail Partners done recently?
- The most recent deal on record here is: ChiroHD, a Mainsail Partners portfolio company, acquired ChiroBilling (2026-11-03). This page lists 2 deals, each with its public source.
- Who leads Mainsail Partners?
- Public sources name Gavin Turner (Managing Partner), C. Jason Payne (Co-Founder & Senior Advisor) and Michael Anderson (Partner) among Mainsail Partners' leadership.
- Which firms are similar to Mainsail Partners?
- By overlap in portfolio sectors in this index: Marlin Equity Partners, THL Partners and Astorg.
- Firm website
- Public portfolio page
- Deal reports (2), linked beside each deal
Firms similar to Mainsail Partners
Chosen from this index by overlap in portfolio sectors, then by portfolio size. Not a ranking or a recommendation.