Palladium Equity Partners has taken an investment stake in Southwest Strategies, a top California public affairs shop with about 50 staffers.

The San Diego-based shop, which works in the energy, transportation, water, housing and professional sports sectors, has handled communications and outreach for more than $20B in infrastructure projects since it launched in 2000.

It did community education for Pacific Gas & Electric’s Power Connect Initiative, the I-805 South Express Lanes Project for the California Dept. of Transportation and San Diego Association of Governments and Poseidon Water’s Carlsbad Desalination Project.

Palladium’s David MacDonald said the investment positions Southwest Strategies for future growth, particularly in light of the Biden administration’s infrastructure spending bill.

New York-based Palladium, which has about $3B in assets under management, is the oldest minority-owned private buyout firm.

Palladium Heritage, which was launched to invest in the lower end of the middle-market, principally business-to-business and industrial companies, made the investment in Southwest Strategies. It is Palladium Heritage’s first deal.

Kekst CNC’s Jeffrey Taufield and Todd Fogarty represent Palladium Heritage.

Publicis Groupe ownes Kekst CNC.