Structural engineering companies in Illinois span from design to construction, offering a wealth of services that support various sectors. Ranging from geotechnical and fire protection engineering to utility and infrastructure development, these firms provide turn-key design and constructability solutions. They tackle projects involving new and existing structures, conducting comprehensive testing, evaluations, and troubleshooting. Moreover, manufacturing entities provide a wealth of high-quality products such as steel tubing and piles. With current industry trends, we observe an increasing commitment to safety, cost-efficiency, and innovative technologies. The sector is moving towards digitalization, embracing practices such as Building Information Modelling(BIM), prefabrication, and advanced material traceability.


Top 24 structural engineering companies in Illinois

1. Wiss, Janney, Elstner Associates, Inc.

  • Website: wje.com
  • Headquarters: Northbrook, Illinois, United States
  • Founded: 1956
  • Headcount: 501-1000
  • LinkedIn

WJE.com is a company that provides engineering and construction services in various fields such as bridge, fire protection, geotechnical, materials engineering, and more. They offer solutions for both new and existing structures, including testing, evaluation, and troubleshooting. Their team of experts utilizes advanced laboratories and technical centers to solve complex problems related to construction materials and components.


2. HBK Engineering, LLC

HBK Engineering is a full-service engineering firm that offers turn-key solutions for design, constructability, utility, and infrastructure needs. With a dedicated team of over 500 staff, HBK provides comprehensive services across various sectors, including natural gas, oil and gas, land development, stormwater management, and communications. They are known for their scalable design approach and commitment to safety, cost savings, and innovative construction technologies.


3. Atlas Tube

Atlas Tube is a company that specializes in manufacturing structural steel products such as pipe piles and mechanical tubing. They offer a wide range of products including ASTM A500 HSS, ASTM A1085 HSS, Jumbo HSS, CSA G40.21 HSS, and Shuriken mechanical tubing. With a focus on manufacturing excellence, quality control, and material traceability, Atlas Tube is committed to providing high-quality steel products for engineers, architects, fabricators, contractors, distributors, and OEMs.


4. Christopher B. Burke Engineering - Chicagoland

  • Website: cbbel.com
  • Headquarters: Rosemont, Illinois, United States
  • Founded: 1986
  • Headcount: 201-500
  • LinkedIn

CBBEL is a full-service consulting engineering and surveying firm specializing in civil, transportation/highway, municipal, traffic, construction observation, water resources, environmental, structural and mechanical engineering.


5. Valdes Architecture and Engineering

  • Website: valdeseng.com
  • Headquarters: Lombard, Illinois, United States
  • Founded: 1992
  • Headcount: 201-500
  • LinkedIn

Valdes is a multidisciplinary engineering firm specializing in front-end engineering and design, project management, and technical solutions. They offer a wide range of services including piping design, structural engineering, equipment inspection, and construction support.


6. Klein & Hoffman

Klein & Hoffman is an architectural and structural engineering company that delivers innovative and practical solutions. With a collaborative approach, they listen to their clients and find creative ways to overcome challenges. Their services include architectural and structural engineering projects, with a focus on high value delivery.


7. Kellermeyer Godfryt Hart, PC

  • Website: kghpc.com
  • Headquarters: Rosemont, Illinois, United States
  • Founded: 1985
  • Headcount: 11-50
  • LinkedIn

Kellermeyer Godfryt Hart, P.C. (kghpc.com) is a company with over 30 years of experience in architecture and engineering services. They offer a range of solutions including structural engineering, construction administration, ordinance and code compliance, documentation and bidding. They are experts in building evaluation, preservation, restoration, and helping clients achieve their goals.


8. Oates Associates, Inc.

Oates Associates is a professional services firm specializing in transportation and building infrastructure. They offer comprehensive solutions for projects of all sizes, providing expertise in bridge and structural design. With a focus on integrity and responsiveness, they build trusted partnerships with their clients.


9. K2N Crest

  • Website: k2n.com
  • Headquarters: Oak Brook, Illinois, United States
  • Founded: 1992
  • Headcount: 11-50
  • LinkedIn

K2N.com is a company based in Oak Brook, IL that provides structural engineering consulting, architecture, and roof consulting services. They offer evaluation and planning solutions for residential, healthcare, and industrial buildings. With a dedicated team of experienced professionals, they specialize in building envelope restoration and parking structure design. K2N.com is committed to delivering high-quality services to their clients.


10. Concrete Reinforcing Steel Institute (CRSI)

  • Website: crsi.org
  • Headquarters: Schaumburg, Illinois, United States
  • Founded: 1924
  • Headcount: 11-50
  • LinkedIn

CRSI.org is a company that specializes in reinforcing steel for construction projects. They offer a wide range of services such as bar identification, handling/storage, splicing bars, and corrosion-resistant bars. Their expertise in resilient construction and code advocacy makes them a valuable resource for the industry. With a focus on sustainability and industry innovation, CRSI is dedicated to providing durable and flexible solutions for bridges, buildings, and transportation facilities.


11. Cummins Engineering Corporation

Cummins Engineering Corporation offers transportation and structural engineering services, including highway and road design, bridge and culvert design, drainage studies, and construction observation. They provide topographic and boundary surveys, as well as hydraulic design.


12. Rrj Inc

  • Website: rrj.com
  • Headquarters: Oak Lawn, Illinois, United States
  • Founded: 1966
  • Headcount: 51-200
  • LinkedIn

RRJ is a respected forensic building consultancy firm that specializes in building enclosure consulting, engineering solutions, and laboratory and field testing. With over 30 years of experience, our team of engineers and architects provides expertise in the design, construction, and rehabilitation of building enclosures. We offer services such as construction consulting, litigation consulting, investigation, historic renovation, condition assessment, repair and renovation, design failure analysis, and design and peer review.


13. Clark Engineers Inc

Clark Engineers, Inc. is a structural engineering firm specializing in forensic engineering, failure analysis, blast-resistant structures, fiberglass structures, and buried tanks. They offer services to a variety of clients including product manufacturers, oil companies, architects, designers, builders, homeowners, and attorneys.


14. Forefront Structural Engineers

Forefront Structural is a structural engineering firm specializing in designing and optimizing residential and mixed-use buildings. They offer expertise in post-tensioned floor slabs, concrete cores, and mass timber framing. With an emphasis on efficient construction cycles, they provide services for projects of various scales, including high-rise towers and low-rise buildings. Their portfolio includes notable projects such as the Cleveland Residential Tower and the Oak Park Elevate Tower. Forefront Structural is committed to delivering innovative solutions and creating safe and sustainable structures.


15. Orion Engineers, PLLC

Orion Engineers, PLLC is a civil/structural and construction engineering firm that offers consulting services. They specialize in client-centered planning, design, and construction services for government and industry partners throughout the nation.


16. SDIENGR Corp.

  • Website: sdiengr.com
  • Headquarters: Chicago, Illinois, United States
  • Founded: 1994
  • Headcount: 11-50
  • LinkedIn

SDIENGR Corp. is an engineering firm providing civil/site design, architectural and transportation engineering services, and construction management services to public and private markets in the Chicago land area since 1994.


17. JSH&a;A

  • Website: jsha.com
  • Headquarters: Chicago, Illinois, United States
  • Founded: 1989
  • Headcount: 51-200
  • LinkedIn

JSHA is a company that provides a wide range of services including engineering, construction management, and environmental consulting.


18. DGS Technical Services Inc.

  • Website: dgsts.com
  • Headquarters: Elgin, Illinois, United States
  • Founded: 2004
  • Headcount: 1001-5000
  • LinkedIn

DGSTS is a leading service provider in connection design services, offering reliable and comprehensive solutions to its customers in various industries. With expertise in structural detailing, revit modeling, and estimation support, DGSTS helps clients in transportation, oil & gas, aviation, and other sectors to achieve their goals.


19. IMEG Corp

  • Website: imegcorp.com
  • Headquarters: Rock Island, Illinois, United States
  • Founded: 1955
  • Headcount: 1001-5000
  • LinkedIn

IMEG Corp is a leading engineering design firm offering comprehensive technical expertise and collaborative partnerships. They provide services in building design, performance optimization, consulting, infrastructure design, and process engineering. With a focus on sustainability and innovation, IMEG serves various industries including arts and culture, automotive R&D, healthcare, transportation, and more. Their team of experts works closely with clients to understand their needs and navigate regulatory challenges for complex projects.


20. Berkey Engineering

  • Website: berkey.biz
  • Headquarters: Chicago, Illinois, United States
  • Founded: 2003
  • Headcount: 1-10
  • LinkedIn

Berkey Engineering provides a wide variety of civil and structural design services, producing more than 500 projects per year. The scope of our services varies from the structural design of small backyard sheds to the civil design of large university parking lots. We are based in the Tri-Cities, WA but are currently licensed in 18 states. Since Cliff and Rob, the two principals of our firm, are both private pilots, we can be anywhere in the western states within a few hours. This kind of easy mobility has, for example, allowed us to enjoy an excellent business relationship with the University of Utah for several years.


21. Primera Engineers

Primera is a full-service engineering design and consulting firm that offers integrated business consulting services tailored to clients' specific needs. They provide engineering and design services for a variety of structures and systems, including mechanical, electrical, plumbing, structural, civil, and telecommunications engineering. Primera's expertise also includes commissioning, energy, architecture, sustainability, life safety, lighting, transportation, natural gas, power delivery, project and construction management, and business consulting services.


22. ESD (Environmental Systems Design, Inc.)

  • Website: esdglobal.com
  • Headquarters: Chicago, Illinois, United States
  • Founded: 1967
  • Headcount: 201-500
  • LinkedIn

ESD Global is a company that specializes in designing and planning for the built environment. They offer services in markets such as Data Centers, Workplace Interiors, High Rise Buildings, Real Estate Asset Repositioning, Healthcare and Life Sciences, and Hospitality and Convention Centers.


23. Ardmore Roderick

Ardmore Roderick is an infrastructure consulting firm that specializes in advanced planning and design build services. They work with various government and transportation organizations to provide solutions for complex problems.


24. eLogicTech Solutions

eLogicTech Solutions is a global BIM and engineering consulting services company providing quality solutions for the building & infrastructure industry. They specialize in architectural CAD services, embedded and IoT solutions, steel detailing, and engineering services.


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