Main Street Capital Corporation
mainstcapital.com Direct investor
Main Street Capital Corporation is a publicly traded investment firm that provides long-term debt and equity capital to lower middle market companies and debt capital to private companies owned by private equity funds. It operates through two segments: Lower Middle Market and Private Credit.
Main Street Capital Corporation is an investor headquartered in Houston, United States, founded in 2007. It invests directly in companies, from growth to buyout, in business Services, commercial & Professional Services, communication Services and consumer Discretionary. Its stated cheque size is $5-$125 Million (Lower Middle Market); $10-$150 Million (Private Credit). $9.0+ Billion of Capital Under Management under management and 200 portfolio companies, as it reports.
“Main Street is a principal investment firm that primarily provides customized long-term debt and equity capital solutions to lower middle market companies and debt capital to private companies owned by or in the process of being acquired by a private equity fund.”
— Main Street Capital Corporation, own website
- Layer
- Direct investor
- Type
- Other
- Headquarters
- Houston, United States
- Invests in
- US
- Sectors
- Business Services, Commercial & Professional Services, Communication Services, Consumer Discretionary, Consumer Staples, Energy, Health Care, Industrials
- Cheque size
- $5-$125 Million (Lower Middle Market); $10-$150 Million (Private Credit)
- Founded
- 2007
- Assets under management
- $9.0+ Billion of Capital Under Management
- Portfolio
- 200 companies
Co-invests most often with
Derived from portfolio pages both investors publish themselves: each pair below lists at least one company in common. 40 co-investors found.
- 645 Ventures Management, LLC 1 shared company: bizjournals.com
- Adams Capital Management, Inc. 1 shared company: bizjournals.com
- AI Ventures Management, LLC 1 shared company: bizjournals.com
- Anzu Partners 1 shared company: bizjournals.com
- Armory Square Ventures 1 shared company: bizjournals.com
- At One Ventures 1 shared company: bizjournals.com
- BlueTree Venture Fund 1 shared company: bizjournals.com
- Boston Seed Capital 1 shared company: bizjournals.com
- Celesta Capital 1 shared company: bizjournals.com
- Cofounders Capital 1 shared company: bizjournals.com
and 30 more — the graph.
Where this comes from
Every fact above was read from a page Main Street Capital Corporation publishes itself. Nothing is taken from third-party databases. Investment activity (deals, co-investors) is not yet recorded.
- https://www.mainstcapital.com/name, is_investor, hq_country, hq_city, invests_in_geographies, sectors, description, portfolio_count, status, confidence
- https://www.mainstcapital.com/aboutlayer, type, thesis_quote, thesis_quote_page, people
- https://www.mainstcapital.com/about/lower-middle-market-solutionsstage_min, cheque_size
- https://www.mainstcapital.com/about/private-credit-solutionsstage_max
- https://www.mainstcapital.com/about/company-historyfounded, aum
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Record 4727 · added 2026-09-03 · link last verified 2026-09-06 · confidence high
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