Investor interest in lower mid-market infrastructure in the US is surging, driven by deployment scale, value-add potential, and favorable exit dynamics, according to Ridgewood Infrastructure. As the infrastructure asset class matures, investors are diversifying beyond large global managers to include specialists by sector, geography, and size. Sam Lissner, a partner at the New York-based firm, notes that structural inefficiencies at the smaller end of the market create compelling opportunities.

Ridgewood targets companies with enterprise values below $500 million, often acquiring family or founder-owned businesses that have never had institutional partners. This approach allows the firm to focus on under-managed or under-commercialized businesses where operational improvements can significantly enhance margins and customer outcomes. The firm emphasizes bilateral origination over competitive auctions, leveraging long-standing relationships to create differentiated transaction dynamics.

Across sectors like water, energy, transportation, and utilities, Ridgewood sees sustained deployment opportunities. In water infrastructure, population growth and aging systems drive demand for new facilities, while energy transition investments continue despite shifting political winds. The firm recently acquired a cold storage platform and is finalizing a railroad sector investment, capitalizing on onshoring trends and supply chain realignment. Lissner maintains that despite political changes, the business case for sustainable investment remains strong, with many solutions now structurally low-cost and high-impact.