Kleinfelder Employee Directory
Civil EngineeringCalifornia, United States1001-5000 Employees
Kleinfelder is a civil engineering firm headquartered in San Diego, California, at 770 First Avenue Suite 400, 92101 United States. The company employs between 1,001 and 5,000 people and provides engineering, science, construction management, construction materials inspection and testing, and environmental professional services. Its work spans transportation, water, energy, and other private infrastructure, delivered by an integrated, cross-disciplinary team of engineers, scientists, and construction professionals. The firm traces its history to 1961. In 2026, Kleinfelder announced leadership appointments, including a National Federal Market Manager and a Chief Financial Officer.