Grindstone

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Grindstone

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One firm. One focus. National security.

INVESTING IN THE COMPANIES THAT PROTECT AMERICA

INVESTING IN THE COMPANIES THAT PROTECT AMERICAINVESTING IN THE COMPANIES THAT PROTECT AMERICAINVESTING IN THE COMPANIES THAT PROTECT AMERICA

One firm. One focus. National security.

INVESTING IN THE COMPANIES THAT PROTECT AMERICA

INVESTING IN THE COMPANIES THAT PROTECT AMERICAINVESTING IN THE COMPANIES THAT PROTECT AMERICAINVESTING IN THE COMPANIES THAT PROTECT AMERICA

grindstone

Grindstone was founded in 2026 as a boutique private equity firm investing in lower and middle-market companies across defense, intelligence, and critical infrastructure. The name reflects our philosophy: raw potential, sharpened through discipline, becomes something enduring. We partner with founders to build lasting businesses—with an operator's perspective and a long-term commitment.

FOCUS

Critical Infrastructure & Real Estate

Critical Infrastructure & Real Estate

Critical Infrastructure & Real Estate

Aerospace & Defense

Critical Infrastructure & Real Estate

Critical Infrastructure & Real Estate

Technology & Services

Critical Infrastructure & Real Estate

Technology & Services

Copyright © 2026 Grindstone - All Rights Reserved. 


Washington D.C

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