The structural engineering industry in Oklahoma is bustling with a variety of companies offering a broad range of services. These companies specialize in bridging the divide between architectural design and practical application, bringing vision to life through detailed blueprints and secure, efficient construction. Typical services include civil and structural engineering, preconstruction planning, project execution, and more. From designing state-of-the-art healthcare facilities to erecting complex structures on challenging sites, these companies demonstrate high levels of expertise across various sectors. The ongoing demand for public and private infrastructure indicates that this industry will continue to thrive, developing innovative solutions and holding strong the backbone of Oklahoman architecture.


Top 24 structural engineering companies in Oklahoma

1. W&W|AFCO Steel

  • Website: wwafcosteel.com
  • Headquarters: Oklahoma City, Oklahoma, United States
  • Founded: 1909
  • Headcount: 1001-5000
  • LinkedIn

W&W | AFCO Steel is a company specializing in steel design, fabrication, and erection. With a history dating back to 1909, they have established themselves as industry leaders in delivering complex structures on challenging sites. Their core capabilities include preconstruction planning, project engineering, and on-site execution. They offer expertise in various industries such as arena/stadium, aviation/transportation, convention center, education, healthcare, hospitality, and industrial manufacturing/distribution.


2. Wallace Design Collective

Wallace Design is a consulting firm specializing in structural and civil engineering. They strive to make lives better for their clients, communities, and employees through their unique approach. They offer services in adaptive reuse, commercial, residential, retail, sports, student housing, and more.


3. KFC Engineering

  • Website: kfcengr.com
  • Headquarters: Oklahoma City, Oklahoma, United States
  • Headcount: 11-50
  • LinkedIn

KFC Engineering is a premier structural engineering company dedicated to providing quality engineering services to private and public sector clients. With a knowledgeable and experienced staff of registered Professional Engineers, the company is committed to building solid client relationships and delivering superior service. Their expertise includes designing for healthcare facilities, warehouses, schools, office buildings, government buildings, and storm shelters.


4. 360 Engineering Group, PLLC

360 Engineering Group is a professional engineering firm that provides comprehensive structural engineering solutions for clients in various industries. With licensed professional engineers in 41 states and Washington D.C., we offer innovative, creative, flexible, and responsive services to meet the unique needs of our clients. Our extensive technical expertise ensures a positive client experience for projects of all sizes and scales.


5. EST, Inc.

  • Website: estinc.com
  • Headquarters: Oklahoma City, Oklahoma, United States
  • Founded: 2000
  • Headcount: 201-500
  • LinkedIn

EST Inc. is a civil engineering company that provides innovative and specialized solutions for clients in Oklahoma, Colorado, Texas, and California. They offer a wide range of services including utility engineering, construction management, materials testing, and environmental services. With a team of experienced professionals, EST Inc. delivers cost-effective and quality engineering solutions to enhance the safety and mobility of communities.


6. PSA Consulting Engineers

  • Website: psaokc.com
  • Headquarters: Oklahoma City, Oklahoma, United States
  • Founded: 1971
  • Headcount: 11-50
  • LinkedIn

PSA Consulting Engineers, Inc. is a professional engineering services company specializing in building systems design, energy analyses, construction documentation, and construction observation. They have experience in various types of projects, including healthcare facilities, housing facilities, office buildings, museums, and recreational facilities.


7. ZFI Engineering Co. (formerly Zahl-Ford, Inc.)

  • Website: zfiengr.com
  • Headquarters: Oklahoma City, Oklahoma, United States
  • Founded: 1980
  • Headcount: 11-50
  • LinkedIn

ZFI Engineering Co. is a client-oriented design and investigative structural engineering firm that specializes in providing solutions for structural problems.


8. BKL Engineers/Architects

  • Website: bklinc.com
  • Headquarters: Tulsa, Oklahoma, United States
  • Founded: 1946
  • Headcount: 11-50
  • LinkedIn

BKL Inc. is a team of problem solvers and innovators in the field of interior architecture and design. They offer their clients solutions to achieve their goals, going above and beyond just design. With a focus on flexibility, value, and personal service, BKL combines experience and expertise to deliver award-winning architectural designs within budgetary constraints.


9. Wallace Engineering

Wallace Design Collective is a civil engineering and land surveying company based in Atlanta. They offer a wide range of services including civil engineering, parking design, surveying, and land development. Their expertise and dedication make them a trusted choice for clients in the AEC industry.


10. Service & Technology Corporation

  • Website: stc-smc.com
  • Headquarters: Bartlesville, Oklahoma, United States
  • Founded: 1986
  • Headcount: 51-200
  • LinkedIn

STC-SMC is a consulting engineering firm that provides custom manufacturing services. They have a team of experienced engineers and complementary personnel to offer a wide range of solutions in chemical, mechanical, electrical, civil, and structural engineering.


11. KKT Architects, Inc.

KKT Architects is a leading architectural firm based in Tulsa, Oklahoma. They specialize in designing better spaces for learning, working, healing, and celebrating. With expertise in various industries, KKT Architects helps clients work smarter, play harder, and live larger.


12. Apollo Metal Specialties Inc. A division of G&G Fabrication & Welding

  • Website: apollofab.com
  • Headquarters: Claremore, Oklahoma, United States
  • Founded: 2017
  • Headcount: 11-50
  • LinkedIn

Apollo Metal Specialties is a trustworthy welding service with a team of experts that specializes in custom structural projects and pays close attention to detail. The company is committed to exceeding customer expectations with reliable and high-quality work.


13. Ford Engineering

Ford Engineering Structural Inspection Service provides experienced and thorough home and commercial building inspection services in Oklahoma. They are a registered professional engineering company and a member of several associations.


14. Ram Jack

  • Website: ramjack.com
  • Headquarters: Ada, Oklahoma, United States
  • Founded: 1968
  • Headcount: 51-200
  • LinkedIn

Ram Jack is a company that offers foundation repair solutions for commercial and residential properties. They specialize in using helical piles and driven piles to stabilize settled and damaged foundations. With their custom-built steel columns and quality management system, they ensure the long-term structural integrity of buildings. Whether it's a multi-unit housing complex, a church, or a medical center, Ram Jack provides reliable and honest foundation support to protect the value of their customers’ investments.


15. FSB Architects + Engineers

  • Website: fsb-ae.com
  • Headquarters: Oklahoma City, Oklahoma, United States
  • Founded: 1945
  • Headcount: 51-200
  • LinkedIn

FSB Architects & Engineers is a multi-disciplinary design firm specializing in architecture, interior design, and engineering services.


16. Ross Group

Ross Group is a construction corporation that specializes in engineering and industrial industries. They offer custom, integrated solutions for building services, including development, design, and construction. With a focus on strong partnerships and creative problem-solving, Ross Group aims to turn their clients' visions into reality.


17. HGL Construction, Inc.

HGL Construction is a full-service construction company specializing in complex design-build and general contracting projects. With expertise in new construction, renovation, horizontal/heavy-civil, industrial, and infrastructure/utility projects, HGL serves clients throughout the United States. The company has established strong partnerships with public and private organizations, including Department of Defense agencies, federal agencies, state agencies, and various municipal, commercial, educational, industrial, and healthcare organizations.


18. ESDC Engineering

ESDC Engineering is a full-service engineering firm based in Tulsa, Oklahoma. They offer a wide range of engineering capabilities and services, providing solutions for various projects.


19. Tower Inspection, Inc.

Tower Inspection, Inc. is a trusted provider of comprehensive field inspection services for towers. With certified climbers and a team of technical writers, they offer thorough and easy-to-read reports. They also specialize in designing, installing, and maintaining towers, antennas, and transmission lines globally. Their expertise and experience have made them a preferred choice for clients like AT&T Wireless, Verizon, and T-Mobile.


20. Metal Building Industries

MBI (Metal Building Industries) is a company that specializes in designing, manufacturing, and installing Pre-Engineered Metal Buildings (PEMB) for the commercial construction market. They offer a 3D-native design workflow, delivering high-quality structures in less time compared to their competitors.


21. B+T Group

  • Website: btgrp.com
  • Headquarters: Tulsa, Oklahoma, United States
  • Founded: 2000
  • Headcount: 201-500
  • LinkedIn

B+T Group is an engineering company that provides turnkey services for the wireless industry. They offer site development, structural analysis, tower engineering, civil engineering, and RF engineering services for macro, DAS, and small cell networks.


22. Fleming Steel Erectors

  • Website: fse-ok.com
  • Headquarters: Tulsa, Oklahoma, United States
  • Founded: 2019
  • Headcount: 11-50
  • LinkedIn

Fleming Steel Erectors is a nationwide steel erection services company with more than 70 million square feet of completed installations. Their services include design-assist, coordination, and field erection services for Division 13 pre-engineered buildings.


23. Smith Roberts Baldischwiler, LLC (SRB)

  • Website: srbok.com
  • Headquarters: Oklahoma City, Oklahoma, United States
  • Founded: 1981
  • Headcount: 51-200
  • LinkedIn

SRB is a civil engineering and land surveying consulting firm that offers specialized services in surveying, right-of-way services, storm water management, highway/roadway and bridge design, water distribution, and sanitary sewer improvements.


24. A & M Engineering and Environmental Services, Inc.

A&M Engineering and Environmental Services, Inc. is a professional services company specializing in mine permitting, civil engineering, environmental assessments, construction management, and QA/QC. They offer a wide range of services including air quality, stormwater management, wastewater treatment, and waste management.


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