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Allgeier, Martin and Associates, Inc. is an established Consulting Engineering firm providing electrical engineering, civil engineering, surveying and related services throughout the Midwest since 1954.

We’re Olsson, a nationally-recognized, employee-owned engineering and design firm with a rich history of success. Founded in 1956 on the very mindset that drives us today, we exist to improve communities, like yours, making it more sustainable, better connected, and more efficient. Simply put, we exist to leave the world better than we found it. 

Though our philosophy hasn’t changed since John E. Olsson opened our doors many years ago, we have certainly evolved, adding dozens of offices across eight states and developing a comprehensive list of services to best serve a comprehensive list of markets. We achieved Top 100 engineering firm status in 2018 (No. 98 on Engineering News-Record’s Top 500 Design Firms national list), proving that tenacity, teamwork and a philanthropic mindset is indeed a winning combination. 

Years Established and Former Names

Established in 1956, Olsson became an employee-owned corporation on October 1, 1970. Previous firm names include John E. Olsson (3/9/1956); Olsson & Burroughs (1958); Clark, Enersen, Olsson, Burroughs, & Thomsen (1962); John E. Olsson & Associates (10/2/1970); and Olsson Associates, Inc. (11/1/1973).

Type of Services Qualified to Perform
and Assistance Expected

Team based and purpose driven, we have more than 1,100 team members in nearly 30 offices across eight states and offer a comprehensive list of services: planning & design, engineering, field services, environmental and technology.


PLJBD offers a wide range of architectural and engineering services designed to create the best solutions for each project. We believe that each project is unique and the proper use of our services will help us maintain long lasting relationships with clients and contractors alike.

Sapp Design Associates Architects is a full service architectural firm that focuses on designing projects that are not only great in design, but truly do meet the needs and budget of each client. SDA has a diverse portfolio of public and private projects that are a testimony to the vast knowledge and innovative thinking that our dedicated designers bring to every project.

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