Manufacturer’s Representative of Quality Products

About Us.

We are a Manufacturer’s Representative company providing local representation of quality products from our partners, serving the electrical, electronic and utility, markets in the Midwest region. Our mission is to serve you with the best solutions, information, and updates on the latest products, quick and accurate quotes and assistance with getting the products you need in the best possible time. We serve in you in - Southern IL, MO, KS, NE, and with Schaefers we also cover AR and CO.

Diamond Engineered Sales was established by Mark Diamond in 2015 and we have been recognized as a trusted reliable resource for your industrial control panel requirements.
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Our passion to serve you has brought us to where we are today, we can assist you in your design and choosing: Enclosures, Cooling & Heating of Enclosures, VFD Drives, HMI’s, Signal, Control, and Electrical components.Source, size and quote plant-wide Signaling, and Thermal Solutions, we also take on engineering and manufacturing problems.
Our business philosophy: Serving you with integrity, at all times we will do what we say we will do.  We aim to establish and maintain long-term relationships with our customers and principals.

Meet the Team.

Mark Diamond
Mark Diamond graduated in 1992 with a B.S. in Mechanical Engineering from Missouri S&T.

From 1992-99 Mark worked for Proctor & Gamble at their Paper Products Plant in Cape Girardeau, Missouri. His roles included Process Engineer, Project Manager, Line Manager, Production Department Manager, and Electrical & Instrumentation Manager.

Mark served as President of Schaefer’s Electrical Enclosures from 1999-2014. Under Mark’s leadership, Schaefer’s was transformed from a rudimentary, manual job shop to a multi million dollar, state of the art, manufacturing facility positioned to be a fierce competitor in the electrical enclosure industry.

Mark is now uniquely suited, through Diamond Engineered Sales, to find solutions to even the most complex problems.

Ola Nordstrom
Graduated from IHM Stockholm Sweden - Marketing and Economics 1985.

Worked in Industrial and Software sales and project management in Sweden 1983-98. Roles included Sales, International Account management and Project leader.

Volunteered with Youth With a Mission in Scotland UK working with youth and missions from 1998 until December 2015 when we moved to Cape Girardeau MO to be close to my wife’s family. Roles in YWAM included School leader, Base/School director and National Director.

January 2016 to present working with Mark Diamond and Diamond Engineered Sales.
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Cory Barker
Graduated from Southeast Missouri State University - Sports Management and Business Administration - 2005
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Cory has spent 13 years as a Jr. High and High School basketball coach and has been a personal fitness trainer.
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Worked at Arnold Insurance in Cape Girardeau, MO, 2017-2022. Started with Diamond Engineered Sales in January 2023.