Founded in Oklahoma City in 1909,Benham，Haskell公司since being acquired in 2016, enjoys a reputation as one of the nation’s preeminent architecture, engineering, and design-build firms with a diverse client base. A member of the Haskell family of brands, Benham transitioned seamlessly into the 1,600+ team members around the globe supporting both private and public sector clients.
Tommy Willis，董事，OKC A＆E，聯邦A＆E副總裁副總裁，托馬拉州，均位於俄克拉荷馬城市。俄克拉荷馬城辦事處是100多名致力於全國各地客戶的隊伍的擁有者。
Services supported include Architecture (conceptual, facility and interior design; master planning; landscape architecture), Engineering (civil site, mechanical, electrical, structural, process systems, packaging systems, automation, civil infrastructure & transportation) and Construction (pre-construction, project management, selected self-perform). Also represented are Consulting; Manufacturing Systems Design & Integration; and Program Management.
Benham是一家Haskell公司，提供以下市場：先進的製造;航空和航空航天;啤酒，葡萄酒和烈酒;民事基礎設施與運輸;商業的;消費產品;教育;聯邦;食品與飲料;衛生保健; Life Sciences; Maritime; Municipal; Religion & Cultural; and Water.
The Oklahoma City office offers delivery methods including Design-Build; Construction Manager at Risk (CMAR); Engineer Procure Construct (EPC); Program Management (PM); and Design Manufacture Construct (DMC).
Regional clients supported by the Oklahoma City Office include General Services Administration; City of Oklahoma City; Oklahoma Airport Trust; Oklahoma Department of Transportation, Oklahoma Military Department; Oklahoma National Guard; U.S. Army Corps of Engineers; Xerox Corporation; Anheuser-Busch In Bev; Reckitt Benckiser; Bayer Monsanto; Nestle Purina; National Cowboy & Western Heritage Museum; Rose State College; University of Oklahoma – Health Sciences Center; and many others in the region.