HNTB Corporation

Also known as: Howard, Needles, Tammen & Bergendoff

Architecture credit on the 2025 Rock Chalk Renaissance renovation of David Booth Kansas Memorial Stadium and the 2021-opened Lower.com Field, plus the 2019 Tulsa AERO bus rapid transit stations; a top-tier US infrastructure and architecture firm with 2022 architecture-division revenue of $693M, second highest of any US architecture firm. (verified 2026-07-19)

HNTB Corporation is an employee-owned infrastructure design firm headquartered in Kansas City, Missouri, founded in 1914 (as Howard, Needles, Tammen & Bergendoff, renamed HNTB in 1993). Its architecture practice designs sports and transportation venues nationally, including stadium architecture credited alongside experiential graphics and fabrication partners on this index.

Projects (3)

Sources

• https://www.hntb.com/
• https://en.wikipedia.org/wiki/HNTB
• https://dimin.com/work/tulsa-transit