Lindsay Goldberg, a private investment firm, has purchased the Kleinfelder Group Inc., an engineering, design, construction management, construction materials inspection and testing and environmental professional services firm.

Founded in 1961 and headquartered in San Diego, Calif., Kleinfelder employs more than 3,100 professionals and operates from over 105 office locations in the U.S., Canada and Australia. The transaction aims to fortify Kleinfelder’s strategic growth potential and bolsters the opportunities to add to its client and service portfolio throughout the business.

“Kleinfelder is a proven leader in the core engineering and professional services markets, and its business model and proven track record make it an exceptionally attractive partner that aligns well with our expertise in the infrastructure, power, and government services end markets,” says Krishna Agrawal, partner at Lindsay Goldberg.

Houlihan Lokey acted as financial advisor to Kleinfelder. AEC Advisors acted as financial advisor to Lindsay Goldberg.