Castor Ventures — Alumni Ventures fund for the MIT community. Co-invests alongside top VCs in MIT-affiliated companies. Part of Alumni Ventures platform ($1.5B AUM, Manchester NH).

Global PE mega-fund. $185B AUM. 200 Clarendon St Boston. Sectors: tech, healthcare, consumer, financial services, retail. Co-Managing Partners: John Connaughton, David Gross.

Global growth PE firm. $47B+ AUM since 1968. 500+ portfolio companies. Focus: tech, healthcare, financial services, consumer, business services. CEO Ajit Nedungadi. HQ Boston.

Middle-market buyout PE. Buy-and-build strategy. Healthcare, business services, technology. Boston HQ.

La Jolla-based seed/early VC. $750M+ invested across 11 funds. Life sciences and tech. Founded by Kevin Kinsella. 125+ companies. Notable: Vertex, Synaptics, Vocera, Onyx Pharma. WSJ top biotech VC. [merged from 817]: San Diego's pioneering life sciences + tech VC. Founded 1983 by Kevin Kinsella. $750M+ deployed. Separate Avalon BioVentures fund ($135M, 2022) exclusively for early-stage biotech. Managing Partners: Jay Lichter, Sandy Madigan, Tighe Reardon. Accelerator model: incubates companies internally before bringing in co-investors. Notable: Erasca, Janux, Synthorx (acq. Sanofi $2.5B), Calporta (acq. Merck), Nerio (acq. Boehringer-Ingelheim $1.3B).

Bain Capital Ventures is a venture capital firm that invests in early-stage and growth-stage startups across seven focus domains: AI Apps, AI Infrastructure, Commerce, Fintech, Healthcare, Physical AI, and Security.

Middle-market PE with opportunistic credit and technology strategies. Thematic sourcing, operational improvement. Spun out of Harvard Management Company.

Growth PE firm. Focus: financial services, education, business services. Boston HQ.

Growth equity for profitable, growing technology and healthcare companies. Focus: SaaS, information services, healthcare IT. Patient long-term capital.

The Yard Ventures — Alumni Ventures fund for the Harvard University community. Co-invests alongside top VCs in Harvard University-affiliated companies. Part of Alumni Ventures platform ($1.5B AUM, Manchester NH).

Boston B2B software seed and Series A VC. Community-first model with Core LP network. Backs founders from earliest stages.