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

Marshall Street Capital

Single family office in Milwaukee, United States, founded 2014; focus on industrial, real estate and climate.

USEFUL FOR Co-investors

Family & background

FAMILY
Hauske
HEADQUARTERS
Milwaukee, United States
FOUNDED
2014

Investment approach

ROUTES
Companies (own capital)

Overview

This single family office is based in Milwaukee, United States; it was founded in 2014. Listed sector interests include industrial, real estate, climate and healthtech. It invests directly in companies; 4 people are named on its team.

People

  • Michael J. Montgomery
    CEO and Chief Investment Officer · source
  • Thomas J. Hauske, Jr.
    Executive Chairman · source
  • J. Douglas Gray
    Vice Chairman · source
  • Bruce Betters
    Vice Chairman · source

Frequently asked questions

Marshall Street Capital is a single family office based in Milwaukee, the United States, founded in 2014.

Marshall Street Capital invests on behalf of the Hauske family.

Marshall Street Capital invests its own capital into companies.

Marshall Street Capital invests in Industrial & Manufacturing, Real Estate & PropTech, Climate & Energy and HealthTech.

Key people at Marshall Street Capital include Thomas J. Hauske, Jr. (Executive Chairman), Michael J. Montgomery (CEO and Chief Investment Officer), J. Douglas Gray (Vice Chairman) and Bruce Betters (Vice Chairman).