Elmwood Park, New Jersey and Irvine, California – Langan Engineering & Environmental Services officially announced its expanded West Coast and California presence with the addition of its Irvine office located at 18662 MacArthur Boulevard. The firm now has 12 offices in eight states: New Jersey, New York, Pennsylvania, Connecticut, Virginia, Florida, Nevada, and California, as well as international locations in Abu Dhabi, Dubai, and Athens.

The Langan Principal in Charge of the firm’s Southern California office is Rudolph P. Frizzi, PE, GE, who is also the current President of the Deep Foundations Institute. The new office operations are led by Dan R. Eberhart, PG, CEG, who joins Langan as an Associate, and Diane Fiorelli, PE, LEED AP, an alumnus of the University of California, Berkeley. Eberhart possesses vast geologic experience in California and throughout the Southwest. In his 38 years of practice in California and beyond, he has led major projects including commercial, industrial, residential, recreational, and institutional developments, as well as highways, water development and reclamation, dam sites, reservoirs, and pipelines.

“Opening an office in California is a milestone that signifies Langan’s ability to support clients from coast to coast with our unmatched mix of integrated engineering and environmental services,” said David T. Gockel, President/CEO of Langan, who is also an alumnus of the University of California, Berkeley. “Under Rudy Frizzi’s leadership and with the addition of Dan Eberhart, our California team is sure to achieve success by delivering superior results to our clients.”

For nearly four decades, Langan has experienced steady growth and most recently expanded its practice geographically in the Mid-Atlantic, Northeastern Pennsylvania, and West Coast regions. The firm’s growth and expansion has occurred organically without merger or acquisition.

“For several years, we have been working on projects in California and throughout the Southwest, which is a region that has always interested Langan,” said Frizzi. “Our business reached the appropriate critical mass to expand in California. The addition of Dan Eberhart greatly augments Langan’s technical expertise and local knowledge in that state and throughout the West Coast.” ‪


About Langan Engineering & Environmental Services
Founded in 1970 and headquartered in Elmwood Park, N.J., Langan is a premier provider of integrated land development engineering and environmental consulting services. Currently, Langan (www.langan.com) employs more than 500 professionals and has regional offices in New York City; Philadelphia, Bethlehem, and Doylestown, PA; New Haven, CT; Trenton, NJ; Arlington, VA; Miami and Tallahassee, FL; Las Vegas, NV, and Irvine, CA. The firm offers site/civil, geotechnical, and environmental engineering, as well as landscape architecture and planning, survey/mapping, BIM-compatible 3D Laser Scanning, traffic/transportation, CADD/GIS, natural and cultural resources/permitting, and sustainable design consulting. Langan supports a mix of private developers, property owners and public sector clients in virtually any market sector including commercial, residential, retail, office, industrial, high-rise, infrastructure, energy, school construction, hospitals/healthcare, mixed-use, stadiums/arenas, waterfront development, brownfield redevelopment, and corporate environmental site assessment and remedial design.

Langan International, the worldwide subsidiary of Langan Engineering & Environmental Services, with offices in London, Athens, Abu Dhabi and Dubai, provides all firm services to private and public sector clients around the globe.

Langan was named Engineering Firm of the Year by the Developers & Builders Alliance. The firm consistently ranks among the Top 5 Best Engineering Firms to Work For by Civil Engineering News and ranks among the top 20 Green Design Firms by Engineering News-Record.