Mainstreet Capital is a private investment firm based in Massachusetts focused on acquiring and operating high-margin, recession-resilient small businesses across New England. We specialize in partnering with owners seeking a thoughtful, flexible transition—whether that means stepping back immediate…
Mainstreet Capital is a private investment firm based in Massachusetts focused on acquiring and operating high-margin, recession-resilient small businesses across New England. We specialize in partnering with owners seeking a thoughtful, flexible transition—whether that means stepping back immediately or staying on to guide the next chapter.
Our model is designed for long-term stewardship, not quick flips. We acquire profitable service-based companies with $500K–$1M in SDE and at least 5 years of operating history. Our ideal targets have strong recurring or repeat customer relationships, low capital intensity, and clear opportunities to modernize operations post-close.
We’re backed by a growing network of investors who want to own a piece of the real economy—not tech startups or Wall Street products, but real, cash-flowing local businesses. Our structure allows for fast closes, creative deal structures (including seller financing and earn-outs), and a commitment to preserving the legacy and team behind the business.
If you're an owner, broker, or advisor representing a business ready for its next chapter, we'd love to connect.
Team (1)
Sectors Nathaniel Finger serves:
Business Services
Industrials
Materials
Consumer Goods
Energy & Utilities
Distribution
Retail
Technology
Consumer Services
Financial Services
Media
Real Estate
Health Care
Life Sciences
Manufacturing
Telecommunications
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