“Over the past 3+ years, DDI has become my go to resource for everything mechanical design related. They offer cost effective, practical solutions, to challenging problems. With DDI, I get everything I need for concept design, IP research, subsystem design/redesign, resolution to elusive field complaints, ground up design of complex electromechanical devices, and everything in between. Several members of the DDI team have become an indispensable extension of my internal team.”

E.H. – Medical Industry Professional

“I’ve worked with DDI since day one. I consider DDI my Design Department Inc. down the hall. Their design and product development work is exceptional. I have yet to encounter a design problem that DDI couldn’t solve in a professional, creative, resourceful and timely manner.”

S.G. – Principal Engineer, Medical Industry

"I have been developing new products for over 25 years and have been working with Design Department Inc. for the past 10 years. Throughout that time I have always been pleased with the results I received. The designs met the mark and were completed on time and on budget, typically faster and less expensive than the closest competitor. I will continue to use Design Department Inc. as a great design and engineering resource."

P.V. – Medical Industry Professional

“As both a colleague and a business partner, Pat Tetzlaff solved a number of very difficult engineering problems and delivered successful products to the market.  He excels in solving problems that require solutions that cross domains from mechanical and electrical engineering to manufacturing and marketing. Pat's career experience allows him to work at every level to successfully deliver an integrated product from initial specification development to final validated industrialized designs. Most importantly, Pat balances business reality with pragmatic design.  He will not deliver something unless he knows it can be done and respect the constraints that he is given.”

P.L. – Engineering Manager, Motorized Recreational Products Industry

The following are testimonials from DDI customers as well as colleagues. These are all real testimonials and if we were ever asked we could produce the original emails. We have permission from each author to publish their testimonials on our website. To maintain some level of confidentiality we have chosen to publish only the author’s initials/first name, basic title, and professional industry.

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