Serving Eastern Iowa, Northern Illinois, All of Indiana, and Berrien County, Michigan
Industrial & Utilities :
David L. Stillmunkes

Bob Sterkel

David L. Stillmunkes (Gas Boosters)

Ben Stillmunkes (Parts & Vortex)

Office :
Caron Stillmunkes

Service :
R&G Services, Inc.

Ruddy Brothers, Inc.

David L. Stillmunkes
Bob Sterkel
Ben Stillmunkes

About Us

Energy Associates Inc has been representing quality process equipment manufacturers and serving the needs of their industrial and utility end-users since 1967.

Our Mission:
As manufacturer representatives serving Eastern Iowa, Northern Illinois, All of Indiana and Berrien County, Michigan, our mission is to provide the highest level of service, knowledge, satisfaction and understanding when meeting the needs of our customers.

- Providing Equipment Sales • Parts • Services • Repairs -

We represent some of the finest equipment brands in the industry. Click on the Industrial Products/Services page for a full listing of the fine manufacturers we represent.

Over the years Energy Associates Inc has proven its’ ability to consistently deliver and has been the recipient of multiple awards: 

Energy Associates Inc has been awarded top honors from their Industrial principals for 30+ years running and has exceeded established industrial sales quota’s.

Sales Professionals

David L. Stillmunkes Sr.

Dave is a Certified Engineering Technician, ASAE 1971, and has over 50+ years of experience in engineering sales/management positions with national companies as well as 37+ years with Energy Associates Inc. He is also a US Army veteran and recipient of The Army Commendation Medal and National Defense Medal. Interests are wood working and fishing. He has been married since 1986 to Caron and has four sons and one daughter.


Robert R. Sterkel

Bob is a 30+ year veteran with Energy Associates Inc and has a BA in Business Administration from Aurora University.  Prior to joining Energy Associates Inc, Bob had sales engineering and management positions with D.R. Sperry & Co. and Eby Brown Company. He is a member of Village Bible Church, Sugar Grove, IL. Interests are sports and guitar. He has been married to Beth since 1975 and has two sons.

Both Dave and his partner, Bob Sterkel, make all of the decisions for Energy Associates Inc so you can be assured of prompt , professional and efficient responses to your needs.