Active

Main Street Capital

Investor type

PE / VC

Founded

1997

AUM

$8 400 M

Location

Houston, Texas, United States

Investment Ticket

$10-50 m

Investment Stage

Pre-seed Seed Series A Series B Late Stage (Series C+)

Region of investment

North America
Investor profile last updated: 18 September, 2025

Profile

Main Street Capital Corporation (NYSE: MAIN) is a principal investment firm, based in Houston, Texas, that provides long-term debt and equity capital to lower middle market companies and debt capital to middle market companies. Main Street’s portfolio investments are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in diverse industry sectors. Main Street seeks to partner with entrepreneurs, business owners and management teams and generally provides "one-stop"​ financing alternatives within its lower middle market portfolio. Main Street’s lower middle market companies generally have annual revenues between $10 million and $150 million. Main Street’s middle market debt investments are made in businesses that are generally larger in size than its lower middle market portfolio companies.

Industry

Financial Services Fintech Real Estate SaaS Security Software Energy CleanTech

Main Street Capital Funds

Name Type
Questionare
Industry
Questionare
Stage
Questionare
Region
Size AUM Launch date
Main Street Capital Corporation
Private Equity (PE)
Financial Services
Fintech
SaaS
Security
Software
Energy
CleanTech
Series A
Series B
North America
$5-10 m
$8400 M
January 2007

Contacts

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FAQs about Main Street Capital

Main Street Capital is a venture capital and private equity firm. It backs companies at Pre-seed, Seed, Series A, Series B and Late Stage (Series C+), writing tickets of $10-50 m.
Main Street Capital is located in Houston, Texas, United States.
Main Street Capital was founded in 1997.
Main Street Capital invests in companies and startups in Financial Services, Fintech, Real Estate, SaaS, Security, Software, Energy, CleanTech.
Main Street Capital invests in companies and startups in North America.
Main Street Capital invests in companies and startups at Pre-seed, Seed, Series A, Series B, Late Stage (Series C+).
Main Street Capital usually invests $10-50 m on average.
Main Street Capital has around $8 400m assets under management.
Main Street Capital last fund was created/launched in 2007-01-01
Main Street Capital can be reached through its website mainstcapital.com and its LinkedIn page. Its general enquiries address is info@mainstcapital.com. Cold-mailing a general inbox rarely reaches a partner, so Private Equity List also lists the investment-team contacts for Main Street Capital — names, roles, verified work emails and LinkedIn profiles — available on a Pro plan from $129/month (see pricing). Contacts are sourced from the firm's website and LinkedIn and re-verified on a rolling cycle. Spot a stale contact, or none at all? Report it — we re-run that firm within 48h and get back to you.
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Private Equity List re-verifies investor profiles on a rolling cycle, pulling from the firm's own website and LinkedIn rather than a one-off import. This profile was last updated on 18 September, 2025. Something out of date here? Report it — we re-run that firm within 48h and get back to you.