Grove Street invests in small and mid-market buyouts and special situations, growth equity and venture capital funds in the U.S., Europe and Asia.  The funds described below are some of our most recent investments that illustrate the type of funds we work with.


Turn/River Capital is a private equity firm that seeks to invest in web based companies through growth capital investment, buyout, spin-out and recapitalizations. The firm prefers to invest in the e-commerce, website security, technology enabled service and application software sectors.


Accomplice is a Boston and San Francisco based seed and early stage IT venture capital firm. They are a seed-led venture capital firm that embraces risk and have pioneered a community approach through platforms like Spearhead, BOSS, Rev, and TUGG.


Morpheus Ventures is an early stage venture capital fund based in Los Angeles. They work with entrepreneurs in growing their businesses to build game-changing companies. Current areas of focus include mobile products, online gaming, social media, cloud-based services, location-based services and online communications.

Brynwood Partners

Brynwood Partners is a private equity firm, founded in 1984 and located in Greenwich, CT.  The firm manages lower middle market buyout funds that acquire consumer products companies.  Brynwood considers both performing and underperforming businesses as well as corporate orphan brands with or without management teams.


Hyperplane is a Boston based venture firm partnering with technical founders who are harnessing machine intelligence, sensor technology, and cloud computing to solve the world’s hardest problems.

Quantum Energy Partners

Quantum Energy Partners provides private equity capital to the global energy industry. Quantum works with entrepreneurs in the oil and gas upstream, midstream, oil field services and power generation sectors. Currently, Quantum has portfolio companies operating in the U.S., Canada and Europe.