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Mainsail Partners logo
Mainsail Partners
mainsailpartners.com
mainsailpartners.com • HQ: San Francisco, United States • 201-500 employees • Founded 2003
HQ: San Francisco, United States • 201-500 employees • Founded 2003
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Mainsail Partners portfolio

Mainsail Partners (Private equity) is known to hold 52 companies, 20 of them startups. 25 of them are hiring now, with 311 open roles. Most of them work in Custom Software Development, Financial Software & Embedded Finance, Scheduling & Booking Software.

Source: Alion Private equity Oct 19, 2026
Investments
52
20 of them startups
Hiring now
25
311 open roles
Exits
4

Companies Mainsail Partners has invested in

All 52 Hiring now 25 Exits 4
Gosteelhead United States Venture round $12.5M · 23 mo ago portfolio pageOct 3
Rentvine Property Management · United States Venture round $96M · 2 yr ago 7 roles portfolio pageOct 3
ChiroHD Chiropractic & Osteopathy · United States Venture round $2M · 2 yr ago 3 roles portfolio pageOct 3
ProShop ERP ERP & Business Management Software · United States Venture round $32M · 3 yr ago 1 role portfolio pageOct 3
Flyntlok Automotive Software · United States Venture round $4.4M · 3 yr ago portfolio pageOct 3
Trella Health Health Data & Interoperability · United States Venture round · 4 yr ago 4 roles portfolio pageOct 3
Apptega Nonprofit, Church & Membership Software · United States Venture round $154k · 6 yr ago 4 roles portfolio pageOct 3
ServiceCore Scheduling & Booking Software · United States Venture round $8M · 7 yr ago 3 roles portfolio pageOct 3
Extensiv Logistics · United States Venture round $4.2M · 7 yr ago portfolio pageOct 3
Pantheonsite Supply Chain Venture round $4.9M · 9 yr ago portfolio pageOct 3
ServiceTitan Field Service Management Software · United States 72 roles portfolio pageOct 3
SolarWinds Observability & APM · United States 70 roles portfolio pageOct 3
Brilliant Earth Jewelry · United States 66 roles portfolio pageOct 3
Bottomline Payment Processing & Gateways · United States 31 roles portfolio pageOct 3
Ncontracts RegTech, AML & Compliance · United States 10 roles portfolio pageOct 3
Advarra Clinical Trial Services (CRO) · India 9 roles portfolio pageOct 3
Getskimmer Scheduling & Booking Software · United States 4 roles portfolio pageOct 3
Instinct Veterinary Medicine 4 roles portfolio pageOct 3
Red Oak Custom Software Development · India 4 roles portfolio pageOct 3
Center Base Legal Software · United States 3 roles portfolio pageOct 3
Dynamo Software Financial Software & Embedded Finance 3 roles portfolio pageOct 3
Fullbay Custom Software Development · United States 3 roles portfolio pageOct 3
Boost Lingo Custom Software Development · United States 2 roles portfolio pageOct 3
Fexa HVAC & Refrigeration 2 roles portfolio pageOct 3
INNERGY ERP & Business Management Software · United States 2 roles portfolio pageOct 3
FieldFlo Construction Management Software · United States 1 role portfolio pageOct 3
Flight Schedule Pro General Aviation 1 role portfolio pageOct 3
PlanHub Construction · United States 1 role portfolio pageOct 3
Syncro RMM & MSP Software · United States 1 role portfolio pageOct 3
2026 Life Safety Inspection Vault LLC Access Control & Alarm Systems · United States portfolio pageOct 3
ALLIANT IT SERVICES AG portfolio pageOct 3
Aspire Software Field Service Management Software portfolio pageOct 3
Bar Method Physiotherapy & Rehabilitation portfolio pageOct 3
CourtReserve Sports Organizations portfolio pageOct 3
Fieldroutes Field Service Management Software portfolio pageOct 3
Inn flow portfolio pageOct 3
Inspect Point Construction Management Software portfolio pageOct 3
JobNimbus portfolio pageOct 3
Likewize portfolio pageOct 3
Macomtech portfolio pageOct 3
NCourt LP portfolio pageOct 3
PayLease Property Management Services Property Management portfolio pageOct 3
R&D Systems Laboratory Equipment portfolio pageOct 3
ResMan | Property Management Software Platform Property Management portfolio pageOct 3
Ripple portfolio pageOct 3
SmartMoving CRM Software portfolio pageOct 3
SoundThinking Law Enforcement · United States portfolio pageOct 3
Source Scrub Investment Banking & M&A Advisory · United States portfolio pageOct 3
Spacelabs Healthcare Predictive Analytics portfolio pageOct 3
Team Front portfolio pageOct 3
TOGO'S portfolio pageOct 3
Zen Planner Fitness portfolio pageOct 3

Focus

Markets
Custom Software Development8%
Financial Software & Embedded Finance6%
Scheduling & Booking Software6%
Property Management6%
ERP & Business Management Software6%
Field Service Management Software6%
Construction Management Software4%
PropTech4%
Where its companies are
United States48%
India4%
Stage of its companies
Venture, series not stated100%

Questions about Mainsail Partners

How many companies has Mainsail Partners invested in?

Mainsail Partners is known to hold 52 companies: 20 startups, and 4 exits so far, read from its own portfolio page and the funding rounds that name it.

Is Mainsail Partners investing now?

Mainsail Partners has no round in the press in 12 months and no new company on its portfolio page in 90 days.

What does Mainsail Partners invest in?

The markets of the companies Mainsail Partners holds: Custom Software Development (8%), Financial Software & Embedded Finance (6%), Scheduling & Booking Software (6%), Property Management (6%), ERP & Business Management Software (6%).

Which Mainsail Partners portfolio companies are hiring?

25 companies Mainsail Partners holds are hiring now, with 311 open roles listed on this page.

Who does Mainsail Partners invest alongside?

The investors that hold the most companies together with Mainsail Partners: Francisco Partners, Primus Capital, Runway Growth Capital, Gryphon Investors.

How this page is made

A company counts as a holding when the investor’s own portfolio page links to it, a program’s catalog lists it, or a funding round in the press names the investor. The numbers are rebuilt every night; each company shows where it came from and when it was first seen.

Sources: its portfolio page, read Oct 3

Mainsail Partners portfolio: 52 known companies. Alion, Oct 19, 2026. https://alion.io/company/mainsail-partners/portfolio

Licence: CC BY-SA 4.0JSON