# Grumman Hill Group

Grumman Hill Group is a Multi Family Office based in Greenwich, United States.

## Overview

- **Organization type:** Multi Family Office
- **Headquarters:** Greenwich, United States
- **Region:** North America
- **Address:** Greenwich, CT, United States
- **Founded:** 1985
- **Assets under management:** Undisclosed
- **Website:** grummanhill.com
- **LinkedIn:** https://www.linkedin.com/company/grumman-hill-assoc

## Regulatory record

- **Reports private funds:** No

## About

Grumman Hill Group was established in 1985 by James T. Kelsey. Kelsey and partner James T. Bunch built the platform from proceeds of their prior private equity and investment banking work. The firm operates as a multi-family office that accepts capital from additional high-net-worth families. The firm executes direct co-investments and SPVs in growth-stage and venture capital opportunities. Asset classes include private equity, natural resources and select real assets. Confirmed geographic reach covers North America and Europe. Sector exposure spans ClimateTech, Energy Transition & Renewables, Industrial Tech, GovTech, Robotics & Automation, SpaceTech and Supply Chain & Logistics. Technology emphases include AI/ML, Cybersecurity, Enterprise Software and Semiconductors. Additional offices operate in New Canaan, Connecticut and Denver, Colorado. Philanthropic vehicles Grumman Hill Montessori Association and The Murray Foundation. No public AUM figure or headcount has been disclosed. The firm maintains a hybrid structure that combines family capital with external high-net-worth commitments while retaining direct investment decision rights at the partner level.

## Sectors

- ClimateTech
- Energy Transition & Renewables
- Industrial Tech
- GovTech
- Robotics & Automation
- SpaceTech
- Supply Chain & Logistics

## Offices

- New Canaan, CT, United States
- Denver, CO, United States

## People

- James T. Kelsey — General Partner and Founder
- James T. Bunch — Managing Member and Partner
- Andre Haroche — Partner and Advisor
- Ellen Murray Kelsey — Family Member

## Questions

### Who runs investment decisions at Grumman Hill Group?

James T. Kelsey serves as General Partner and Founder. James T. Bunch acts as Managing Member and Partner. Andre Haroche participates as Partner and Advisor.

### How does Grumman Hill Group source proprietary deal flow?

The firm relies on the operational and financial networks developed by Kelsey and Bunch during prior private equity and investment banking careers.

### Is Grumman Hill Group structured as a single family office or does it operate more like a venture firm?

It functions as a multi-family office that accepts capital from multiple high-net-worth families while executing direct investments.

### Does Grumman Hill Group participate in fund commitments or only direct deals?

The firm focuses on direct co-investments and SPVs rather than primary fund commitments.

### What investment stages does Grumman Hill Group typically target?

The firm targets growth equity and venture capital stages in small to mid-market companies.

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- [Growth Strategy Advisors](https://altss.com/profile/growth-strategy-advisors)
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Last updated: 2026-08-10T15:54:10.904Z

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