Private Equity Firms in Massachusetts
15 mid-market firms headquartered in Massachusetts. Sector focus, check size, and investment criteria for each, drawn from the firms' own published materials.
12 of 15 are based in Boston. Most common sector focus: Software & Technology, Healthcare, Business Services. Published EBITDA targets: 6 at $5M-$15M, 1 at $15M-$40M, 1 at $40M+.
- Audax Private Equity
One of the most prolific buy-and-build investors in private equity, with roughly $19B in AUM.
- BV Investment Partners
One of the older tech-focused mid-market firms, Boston-based with a $2.5B latest fund, investing in tech-enabled business services, software, and IT services companies with $5M to $30M of EBITDA.
- Castle Island Partners
A Newton, Massachusetts firm buying industrial manufacturing, distribution, and logistics companies from $1M to $20M of EBITDA.
- Guidepost Growth Equity
A Boston growth firm with a $521M fourth fund, investing $15M to $75M in B2B software and data services companies with $10M to $50M of revenue.
- Nonantum Capital Partners
A Boston firm with a $575M second fund buying consumer, restaurant, and diversified lower-middle-market businesses with enterprise values of $50M to $500M.
- PSG (Providence Strategic Growth)
PSG (Providence Strategic Growth) invests $10M to $150M in lower-middle-market software and tech-enabled services companies, with roughly $6B in its latest flagship.
- RS2 Healthcare Partners (formerly Riverside Partners, Boston)
The Boston firm formerly known as Riverside Partners, rebranded in 2026 around its healthcare franchise.
- Silversmith Capital Partners
A Boston growth firm with a $1.7B fifth fund investing $15M to $50M in SaaS, information services, and healthcare IT companies.
- Spectrum Equity
A Boston and San Francisco growth firm with a $1.5B ninth fund investing $25M to $150M+ in internet-enabled software and information services businesses.
- Sverica Capital Management
A Boston and San Francisco firm with a $750M sixth fund investing $25M to $75M in technology, business services, healthcare, and advanced industrial companies under $25M of EBITDA.
- Union Park Capital
A Boston firm investing $10M to $150M exclusively in lower-middle-market industrial technology companies.
- Volition Capital
A Boston growth firm investing $5M to $50M in founder-owned software and internet companies with $5M to $20M+ of revenue.
- Watermill Group
A Lexington, Massachusetts firm applying strategy-consulting discipline to industrial manufacturing and distribution companies with $3M to $15M of EBITDA.
- Webster Equity Partners
A Waltham healthcare firm with a ~$1.8B sixth fund, 100% healthcare services: physician practice management, behavioral health, post-acute, and pharma services with $5M to $20M+ entry EBITDA.
- Yellow Wood Partners
A Boston consumer specialist with ~$2.6B AUM buying personal care and beauty brands with $15M to $100M of EBITDA, including corporate carve-outs like Chapstick and Suave.
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