Engineering Design Source, Inc.

16141 Swingley Ridge Rd
Chesterfield, MO 63017
Phone: 636.537.5585

Our Culture

Our Premise…Happiness Drives Results


I started EDSI in 1995 with a simple but powerful premise…the best work comes from talented people who are motivated to do their best because they love what they’re doing.


Here’s our logic: Happy employees do better work. Our clients therefore receive a better product. This better product increases our client’s satisfaction with us. Satisfied clients bring us increasingly bigger challenges. Bigger challenges motivate our people to produce better work.


Physicists might liken it to a human flywheel…behaviorists might call it a win/win relationship…we just like to think of it as a fun way to grow a business.