Kleinfelder logo on white background

The Kleinfelder Group Acquired by Lindsay Goldberg

Private investment firm’s acquisition accelerates Kleinfelder’s growth opportunities and bright future

SAN DIEGO, CA (September 19, 2023) – The Kleinfelder Group, Inc. (“Kleinfelder”), a leading engineering, design, construction management, construction materials inspection and testing, and environmental professional services firm, announced today that affiliates of Lindsay Goldberg, in partnership with company’s management, has completed an investment in Kleinfelder. The transaction, which closed on September 18, 2023, fortifies Kleinfelder’s strategic growth potential and bolsters the opportunities to add to the robust client and service portfolio throughout the business.  Financial details of the transaction were not disclosed.

Kleinfelder’s President and CEO Louis Armstrong and the entire management team will remain with the company and continue to be involved with all phases of the business.  Since 2019, the organization has made six strategic acquisitions, all of which have strengthened the business and focused on delivering high-quality solutions to clients in the transportation, water, power, and industrial markets.

“This is another momentous step on Kleinfelder’s journey, and we are very excited about partnering with Lindsay Goldberg,” said Armstrong, who has served as Kleinfelder’s President and CEO since 2019.  As President and CEO, Armstrong and Kleinfelder’s management team have focused on organic growth and value creation through employee opportunities, enhanced client and service solutions, and financial achievements. “The partnership with Lindsay Goldberg is an exceptional opportunity as it will help Kleinfelder’s growth in all areas,” continued Armstrong.

“Our partnership with Louis and the management team underscores our confidence in Kleinfelder’s capabilities, operational acumen, and reputation as a trusted provider of high-quality solutions.  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,” said Krishna Agrawal, Partner at Lindsay Goldberg. “We are excited to welcome Kleinfelder to the Lindsay Goldberg portfolio and to partner with the team on its next stage of growth.”

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




About Kleinfelder

Founded in 1961, Kleinfelder is a leading engineering, design, construction management, construction materials inspection and testing, and environmental professional services firm.  Kleinfelder employs more than 3,100 professionals and operates from over 105 office locations in the United States, Canada, and Australia.  The company is headquartered in San Diego, California.  Poised for growth, Kleinfelder continues to provide high-quality solutions for a diverse client base.  For more information about Kleinfelder, please visit Kleinfelder.com or LinkedIn/Kleinfelder.


About Lindsay Goldberg

Lindsay Goldberg is a private investment firm that focuses on partnering with families, founders and management teams seeking to actively build their businesses. Since 2001, Lindsay Goldberg has raised more than $17 billion of equity capital and has invested in over 60 platform companies and over 300 follow-on opportunities. The firm focuses on three industries that typically demonstrate resilience across economic cycles, including industrials, services, and healthcare. Lindsay Goldberg takes a relationship-driven approach and is supported by its global network of affiliate partners. For more information about Lindsay Goldberg, please visit www.lindsaygoldbergllc.com.


For More Information:

Dustin Esposito – Kleinfelder: DEsposito@Kleinfelder.com

Lindsay Goldberg: LGCommunications@lindsaygoldbergllc.com