HNTB Corporation, based in Kansas City, United States, is a leading architecture, engineering, and planning firm with a rich history dating back to 1914. Its headquarters is located at 715 Kirk Drive, Kansas City, Missouri. HNTB offers a wide range of products and services to clients, operating in various sectors such as transportation, infrastructure, aviation, bridges, highways, tunnels, rail, sports, and more.

The company provides design, engineering, construction, planning, and program management services to public and private sector clients. HNTB is known for its expertise in delivering innovative and sustainable solutions that meet the unique needs of each project. Internationally, HNTB has established a global presence through its subsidiaries, joint ventures, and partnerships.

One notable subsidiary is HNTB Holdings Ltd., which supports the company's international projects. Additionally, HNTB has formed partnerships with companies such as AECOM and CH2M to enhance its capabilities and expand its reach. In terms of market position, HNTB is recognized as one of the top architecture and engineering firms in the United States.

It has consistently ranked among the Engineering News-Record's Top 10 Design Firms. The company has also won numerous awards and accolades for its work, including being named Design Firm of the Year by the Zweig Group. Over the years, HNTB has achieved significant milestones and played a key role in shaping the infrastructure landscape.

For example, in 2012, HNTB celebrated its 100th anniversary, marking a century of excellence in the design and engineering industry. The company has also been at the forefront of the design and development of iconic structures and transportation projects, including the Second Avenue Subway in New York City and the new SoFi Stadium in Los Angeles. Currently, HNTB continues to thrive as a trusted advisor and industry leader.

It remains committed to providing innovative solutions that address the evolving needs of its clients. By leveraging its technical expertise, creative thinking, and commitment to sustainability, HNTB aims to make a lasting impact on communities around the world