# Chestnut Ridge Capital

Chestnut Ridge Capital is a Single Family Office based in Boston, United States.

## Overview

- **Organization type:** Single Family Office
- **Headquarters:** Boston, United States
- **Region:** North America
- **Address:** Ridgefield Park, NJ, United States
- **Founded:** 2002
- **Assets under management:** Undisclosed
- **Website:** chestnutcap.com

## About

Chestnut Ridge Capital was established in 2002 by Kenneth D. Pasternak after his tenure at Knight Trading Group, the electronic market maker he co-founded. The office operates from Ridgefield Park, New Jersey, and channels capital into alternatives with a multi-decade horizon. Allocations span hedge funds, direct real estate, and venture-style commitments. Confirmed holdings include mixed-use, commercial properties such as 1 North Main Street in Port Chester and 65 Bay Street in Jersey City. The office has also partnered on developments with Kushner Companies in Jersey City. Geographic reach stays within North America, primarily the Northeast and Florida. The team includes business partners Adam Altman and Eliezer R. Katz, both former portfolio managers at the office. Real estate execution occurs through KABR Group. The Pasternak Family Foundation handles separate philanthropic activity. No public AUM figure exists. The structure ties investment decisions directly to the Pasternak family balance sheet, allowing co-investments and property acquisitions without external LP constraints or fixed fund cycles.

## Sectors

- Energy Transition & Renewables
- Mobility & Transportation
- PropTech
- ClimateTech
- HRTech
- Digital Health
- Biotech & Genomics

## People

- Kenneth D. Pasternak — Principal
- Adam Altman — Business Partner
- Eliezer R. Katz — Business Partner

## Questions

### Who runs investment decisions at Chestnut Ridge Capital?

Kenneth D. Pasternak directs allocations. Business partners Adam Altman and Eliezer R. Katz have served as portfolio managers and co-founders of related vehicles.

### How does Chestnut Ridge Capital source proprietary deal flow?

The office draws on long-standing relationships from Knight Trading Group and real estate partnerships, including work with Kushner Companies on Jersey City projects.

### Does Chestnut Ridge Capital participate in fund commitments or only direct deals?

Both. The mandate includes hedge fund allocations alongside direct co-investments and SPVs in real estate and other alternatives.

### Does Chestnut Ridge Capital maintain philanthropic structures?

Yes. The Pasternak Family Foundation operates separately from the investment office.

## Related profiles

- [Chasefield Capital](https://altss.com/profile/chasefield-capital)
- [Cheyne Capital](https://altss.com/profile/cheyne-capital-management-uk-llp)

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Last updated: 2026-08-10T15:54:10.904Z

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