Strategic move enhances local infrastructure capabilities and strengthens community growth and development
ONTARIO, Calif. (Oct. 22, 2025) – Continued growth of HNTB Corporation’s Southern California operations led the firm to relocate to a new, expanded office in the Inland Empire, strengthening its ability to serve regional transportation clients and advance critical infrastructure improvements.
HNTB’s Dave Warner
The Inland Empire location at Empire Towers One, 3633 Inland Empire Blvd., Suite 955, in Ontario, San Bernardino County, provides nearly 10,000 square feet of space to accommodate additional professional staff and expanded resources.
“HNTB’s commitment to Southern California, and the Inland Empire in particular, is rooted in a decades-strong history with several regional transportation agencies that are shaping the future of mobility for our communities,” said Dave Warner, PE, HNTB Orange County/Inland Empire office leader.
A national infrastructure firm with more than 111 years of service, HNTB expanded its existing Inland Empire office to better support clients including the California Department of Transportation District 8, San Bernardino County Transportation Authority, Riverside County Transportation Commission and Ontario International Airport. The larger space enables the firm to provide more responsive service, foster closer collaboration, and deliver innovative solutions for complex transportation challenges.
“With a stronger local presence, HNTB can more effectively respond to client needs and deliver tailored solutions that improve mobility and connectivity across the region,” said Matthew Bushman, PE, HNTB Inland Empire location leader and associate vice president. “This office positions us to help clients address the unique challenges of a rapidly growing Inland Empire.”
HNTB has long-standing roots in the region, having contributed to major freeway programs such as SR-210 and I-10. The firm continues to play a role in many of the Inland Empire’s most significant and complex infrastructure programs across multiple disciplines.