Huitt-Zollars is an architecture and engineering firm that provides design and planning services for various types of projects, including transportation, healthcare, and commercial buildings. The company was founded in 1975 and is headquartered in Dallas, Texas. Huitt-Zollars has offices in various locations across the United States, including California, Colorado, and New Mexico. The company has a team of over 1,000 professionals who are dedicated to providing high-quality services to clients.