# Simpson Investment Company

Simpson Investment Company is a Corporate Investor based in Lexington, United States.

## Overview

- **Organization type:** Corporate Investor
- **Headquarters:** Lexington, United States
- **Region:** North America
- **Address:** 400 Simpson Ave., McCleary, WA 98557, United States
- **Assets under management:** Undisclosed
- **Website:** simpsondoor.com
- **LinkedIn:** https://www.linkedin.com/company/simpson-investment-company
- **Wikidata:** Q7521107

## About

Simpson Investment Company is an SEC-registered investment adviser in Lexington, MA. The firm manages approximately $18 million in regulatory assets. It has 1 employee and 1 investment adviser.

## Sectors

- Timber & Forestry
- Real Estate

## Offices

- Seattle, WA (Rainier Tower)

## People

- Douglas Reed — President, Simpson Investment Company; President, Green Diamond Resource Company
- Mark Reed — Board Member; Founder, Contact Fund
- William G. Reed Jr. — Retired Chairman

## Questions

### What is the firm's known posture on external co-investments?

The firm does not appear to co-invest alongside unaffiliated general partners in the conventional private-fund sense. The Twin Creeks Timber joint venture with Silver Creek Capital Management is the only disclosed external partnership, and it functions as a dedicated timber investment vehicle rather than a platform for opportunistic co-investment across asset classes.

## Related profiles

- [SIMPREVI](https://altss.com/profile/simprevi)
- [Simsan Ventures](https://altss.com/profile/simsan-ventures)

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Last updated: 2026-06-03T20:00:00.000Z

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