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Multi Family OfficePuts its own capital into companiesLAST VERIFIED Aug 2026 · 1 SOURCES

Grumman Hill Group

Multi family office in Greenwich, United States, founded 1985; focus on climate, industrial and software.

USEFUL FOR Co-investors

Identity

HEADQUARTERS
Greenwich, United States
OFFICES
New Canaan, CT, United States · Denver, CO, United States
FOUNDED
1985

Investment approach

ROUTES
Companies (own capital)

Overview

Headquartered in Greenwich, United States, the firm is listed as a multi family office founded in 1985. Sectors on record are climate, industrial, software and deep tech. Other offices: New Canaan, CT, United States; Denver, CO, United States; it invests directly in companies; 4 people are named on its team.

People

  • James T. Kelsey
    General Partner and Founder · source
  • James T. Bunch
    Managing Member and Partner · source
  • Andre Haroche
    Partner and Advisor · source
  • Ellen Murray Kelsey
    Family Member · source

Frequently asked questions

Grumman Hill Group is a multi family office based in Greenwich, the United States, founded in 1985.

Grumman Hill Group invests its own capital into companies.

Grumman Hill Group invests in Climate & Energy, Industrial & Manufacturing, Software & SaaS, Deep Tech, Space and Mobility & Logistics.

Key people at Grumman Hill Group include James T. Kelsey (General Partner and Founder), James T. Bunch (Managing Member and Partner), Andre Haroche (Partner and Advisor) and Ellen Murray Kelsey (Family Member).