Diversified Engineering & Plastics is committed to providing 
you with the information and resources you need to help us be successful together!
Meet Your Customer Support Team
DEP recognizes the value in team support, especially when it comes to our customers and our ability to respond to needs and demands in a timely manner.  We have created a Customer Care Team that will provide excellent customer service from program start to finish.

Jim Stark - Materials Manager
(517) 789-8118, ext. 1147

(517) 789-8118, ext. 1149

(517) 789-8118, ext. 1105

Recent Survey
A survey was sent out to all of our Customers asking for your feedback.  If you could just take a moment to fill this out we would greatly appreciate your time and assistance.  We know that there are areas in which we can provide better support and look forward to your response.

Customer Survey Link
Recent Certifications
At DEP we are serious about setting and improving the standards in our industry. We are proud to promote that we are a Woman and Minority Owned Business and strive for diversity in all we do.  Each year we go through several certification processes to ensure we are compliant in our endeavors.  
Please don't hesitate to contact us with questions regarding these certifications.  If you need these, you can visit the  Certifications Page found on our website or click on the links below.
  • This is used by Automotive Manufacturers to ensure our Quality Management Systems are consistent and effective.

ISO 14001 3-Year Certificate

  • Also used by Automotive Manufacturers to ensure Environmental Mandates are being adhered to.

WBENC/WBE Certificate

  • The Women's Business Enterprise National Council certifies that we are a Woman-Owned and Operated Business.

MMSDC/MBE Certificate

  • The Michigan Minority Supplier Development Council certifies that we are a Minority Owned and Operated Business.