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We Think Bigger.

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 Ranked in List of Top 500 Design Firms

LJB’s reputation for providing great client service on a foundation of technical excellence has propelled the firm into the 2022 Engineering News Record (ENR) list of Top 500 Design Firms. LJB’s ranking at #432—based on 2021 gross revenue of $32.8M—puts the firm in the top 1% in 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.

Featured News

LJB Hires Veteran Stormwater Engineer

LJB Hires Veteran Stormwater Engineer

To support the firm’s commitment to providing expert water resources services…
LJB Ranked in List of Top 500 Design Firms

LJB Ranked in List of Top 500 Design Firms

LJB’s reputation for providing great client service on a foundation of…

From Twitter

The @blooddonor mobile blood drive bus is outside our corporate office today for another employee blood drive. Thanks again to all members of #TeamLJB who donated today to improve quality of life in our community. https://t.co/5EWAi1BUpA LJBinc photo