Truck 9 Partners is a Boston-based private equity investment firm backing small to midsize blue collar businesses in the Northeast United States. It targets owner-founders seeking growth or succession capital, including minority, majority, and full ownership investments, with a PE Growth/Expansion orientation. Sector exposure includes construction, logistics, manufacturing, energy, food and beverage, industrial technology, supply chain, and transportation, and the firm has acted as a co-lead investor in private-company financing.