The structural engineering industry in Ohio is marked by firms offering a diverse range of solutions. These companies specialise in sectors as varied as civil, structural, geospatial, and safety services. Conglomerates like LJB Inc. have been around since 1966, contributing significantly to the industry with their dedication to improving quality of life. Other companies like The Ruhlin Company have excelled in construction, offering reliable solutions in building, civil, and industrial projects. In this evolving industry, innovations like building information modelling and sustainability have become standard and will pave the path for the future.


Top 22 structural engineering companies in Ohio

1. LJB Inc.

  • Website: ljbinc.com
  • Headquarters: Miamisburg, Ohio, United States
  • Founded: 1966
  • Headcount: 51-200
  • Latest funding type: Acquired
  • LinkedIn

LJB Inc. is a national engineering firm that provides civil and structural engineering, as well as geospatial and safety services. Founded in 1966, they aim to make a positive difference in the world by improving the quality of life for their clients, communities, and individuals they serve.


2. The Ruhlin Company

  • Website: ruhlin.com
  • Headquarters: Sharon Center, Ohio, United States
  • Founded: 1915
  • Headcount: 201-500
  • LinkedIn

The Ruhlin Company is a construction firm with 108 years of experience. They specialize in building, civil, industrial, and structural projects. They offer services such as building information modeling, prefabrication, and sustainability. The company is known for its proven results and commitment to safety.


3. Shell and Meyer Associates, INC

Shell + Meyer Associates, Inc. is a commercial structural engineering company based in Dayton, Ohio. They offer structural engineering services for various projects, including residential designs, remodels, and deck designs.


4. TTR Engineers

TTR Engineers is a professional engineering firm based in Akron, OH. They specialize in structural engineering, providing high-quality services for commercial, industrial, and residential projects. With a skilled team of engineers and designers, TTR Engineers ensures a smooth and successful project from design to completion.


5. Advantage Group Engineers, Inc.

Advantage Group Engineers, Inc. is a structural engineering consulting firm based in Cincinnati, Ohio. They specialize in designing and detailing structural systems for various types of buildings and structures throughout the country.


6. I. A. Lewin, P.E. & Associates

I.A. Lewin & Associates, Inc. is an engineering firm providing comprehensive structural and civil engineering services. With offices in Cleveland, Ohio, and Rochester, New York, we specialize in new construction, renovations, inspections, and design of various projects. Our team works closely with owners, developers, architects, and contractors to ensure structural integrity and compliance with regulations.


7. Shirk & O'Donovan Consulting Engineers, Inc.

Shirk & O'Donovan Consulting Engineers is a professional services company specializing in structural engineering. With a deep bench of experts, they offer tailored solutions for diverse markets including healthcare, retail, multi-family, hospitality, commercial, industrial & warehouse, gathering places, education, and municipal & infrastructure.


8. Ohlin & Reed Consulting Engineers, Inc.

Ohlin & Reed is a structural engineering company offering design and technical consulting services. With over 40 years of combined experience, they work with architects, owners, developers, builders, and manufacturers. They provide services such as schematic design, construction documents, inspection, and feasibility studies.


9. Shenberger & Associates, Inc.

Shenberger & Associates, Inc. is a structural design group offering professional structural engineering services for owners, developers, and architects. With over 49 years of experience, we specialize in providing smart, sound, and cost-effective designs for malls, office buildings, lifestyle centers, churches, retail structures, and building renovations across the United States.


10. TTR Engineers

TTR Engineers is a full-service structural engineering firm that provides complete structural design for builders and architects as well as delegated design for fabricators and detailers.


11. Nick Sung Engineering

Nick Sung Engineering offers engineering consulting services in the field of structural engineering.


12. THP Limited, Inc

  • Website: thpltd.com
  • Headquarters: Cincinnati, Ohio, United States
  • Founded: 1973
  • Headcount: 51-200
  • LinkedIn

THP Limited is a trusted advisor that reinforces communities through collaborative partnerships. Their commitment to high standards and progressive practices helps clients navigate their built environments. They are known for their creative approach to design and their pursuit of meaningful solutions.


13. Sponseller Group Inc

Sponseller Group Inc. is a trusted supplier of engineering and design services to the manufacturing, processing, and build industries in Northwest Ohio and their affiliated locations across the United States.


14. Dynotec, Inc.

Dynotec is a full-service company specializing in surveying and engineering solutions. With a commitment to utilizing state-of-the-art technologies, we provide efficient and reliable services to both our department and our clients. Our comprehensive range of offerings includes boundaries, topography, utility locations, mapping, construction staking, architectural and structural design, transportation engineering, and construction management and inspection.


15. TC Architects

TC Architects is a company that turns visions into reality. They offer architectural services and specialize in designing and constructing various types of buildings and structures.


16. E.P. Ferris & Associates, INC.

E.P. Ferris & Associates is a leading civil engineering firm based in Columbus, Ohio. With over 25 years of experience, they specialize in providing high-quality civil engineering services. Their expertise includes various areas such as infrastructure development, land surveying, and project management.


17. Kabil Associates Inc

  • Website: kabil.com
  • Headquarters: Columbus, Ohio, United States
  • Founded: 1980
  • Headcount: 11-50
  • LinkedIn

Kabil Associates is a multi-disciplinary firm specializing in architecture, structural and civil engineering, and cost estimating. They serve both public and private sector clients and have projects throughout the US and internationally.


18. The Mannik & Smith Group, Inc.

The Mannik & Smith Group, Inc. (MSG) offers an innovative and solution oriented approach to helping clients complete successful projects by employing creativity to solve problems, maximizing value and reaching cost effective client solutions.


19. Osborn Engineering

Osborn-Eng is a client-inspired and engineering-driven company that specializes in providing Mechanical, Electrical, Plumbing, Fire Protection, Technology, and Energy Modeling services. With offices across multiple locations, Osborn collaborates to deliver quality design and support client success. As an employee-owned consulting company, Osborn is dedicated to innovation, sustainability, and exceptional client service.


20. Basic Systems, Inc.

Basic Systems, Inc. is a multi-discipline, full-service consulting engineering firm offering a full range of project, process, mechanical, electrical, instrumentation, civil, structural and automation/systems control engineering as well as inspection, procurement, construction management, and start-up services.


21. AMG, Inc.

  • Website: amg-eng.com
  • Headquarters: Dayton, Ohio, United States
  • Founded: 1980
  • Headcount: 51-200
  • LinkedIn

AMG is a consulting engineering firm specializing in planning, design, and construction support services for agricultural, chemical, and industrial processing facilities.


22. The JDI Group

The JDIGroup is an architecture and engineering company specializing in a wide range of services including interior design, mechanical engineering, electrical engineering, civil engineering, and more. They provide quality solutions to clients in various industries such as automotive, healthcare, manufacturing, and government. With an entrepreneurial spirit and a focus on trust, they help clients achieve their goals through responsive service and innovative solutions.


Want to find more structural engineering companies?


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