Welcome to LJB

We’re engineers, consultants, problem solvers and trusted advisors, improving the quality of life
for the clients, communities and individuals we serve.

LJB Moves Up List of Top 500 Design Firms

LJB’s consistent growth has helped us move up in the annual Engineering News Record (ENR) list of Top 500 Design Firms. LJB’s 2023 ranking at #415—up from #432 in 2022—maintains the firm’s position in the top 1% of the industry.

The Dayton Business Journal tapped LJB CEO, Rod Sommer, for inclusion in its executive profile series. Rod shared a little about himself and a lot about LJB and where the company is headed. Read the article: Engineering firm CEO talks digitalization trends and future market expansions.

Fall Protection Training

LJB’s fall protection training courses provide you with the knowledge to solve your fall protection issues before they arise.

Active in many professional organizations, LJB staff regularly present at industry conferences. Check out where we’ll be next.

About LJB

Founded in 1966, LJB Inc. is a national engineering firm that provides civil and structural engineering, as well as geospatial and safety services. In everything we do, we want to make a positive difference in our world.




Featured News

LJB Moves Up List of Top 500 Design Firms

LJB Moves Up List of Top 500 Design Firms

LJB’s consistent growth has helped the firm move up in the…
LJB Hires National Water Resources Lead

LJB Hires National Water Resources Lead

To support the firm’s commitment to providing expert water resources services,…

From Twitter

While many take clean water for granted, today we pause to remember that billions are affected by water & sanitation challenges. Our #WaterResources team is committed to helping individuals, ...communities, institutions & businesses thrive with access to clean water. #WorldWaterDay

Building on LJB’s world-class #fallprotection expertise, our clients can now benefit from Fall Protection Plus—our exclusive web-based tool that helps organizations save time & money by more ...effectively and efficiently managing a fall protection program. https://bit.ly/42w5x5O

LJB is searching for an IT Analyst to join our support services team. Qualified candidates will have a degree in computer science, engineering, or related w/ 5-10 years of experience. To learn more ...or apply, click here: https://www.ljbinc.com/careers/ #IT

It’s been an extra fun week at LJB! From enjoying pie for #PiDay, kicking off a bracket challenge for #MarchMadness and “eating green” for #StPatrickDay, our Social Events Committee has outdone... itself this week.

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