Engineering
Architecture
Planning

TKDA is a full-service engineering, architecture and planning firm committed to improving communities, helping business and industry grow and building long-term relationships with our clients. We have been serving clients across the country for more than 109 years. With a team of nearly 300 highly trained employee-owners, TKDA is your single source for lasting design solutions.

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The right solutions to meet all your needs

Our experienced in-house team of architects, engineers and planners is ready to take on your toughest project. Every TKDA project is approached as the start of a long-term relationship.

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Be part of our success

As a multidisciplined team of engineering, architecture, planning, and environmental professionals, we understand the importance and value of teamwork. At TKDA, you will be much more than a number because every team member provides impactful contributions.

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Our Company
Engineering
Architecture
Planning

TKDA provides full-service engineering, architecture and planning solutions to a wide variety of clients throughout the country. We are passionate about building long-term relationships and creating better communities.

Our Company
What's New
Eric Lechowicz named Chicago Rail Architecture Group Manager
Eric A. Lechowicz, NCARB, RA, ALA, has been named group manager for the Rail Architecture team in TKDA’s Chicago office. Over his 23-year career, the... Read more
New staff have joined the TKDA team in the firm’s Duluth office
Christian Lawien, PE, has a Bachelor of Science in civil engineering and a Bachelor of Accounting, both from the University of Minnesota-Duluth. He has more... Read more
TKDA employees raise money for summer food shelf donation
TKDA employees donated more than $5,000 to support local food drives in our communities this summer. The annual donation drive is organized by TKDA’s ESOP... Read more
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