timeline

About Matrix PDM Engineering

History

Building on a rich history that spans many industries, four companies have come together to form Matrix PDM Engineering.

The original Tulsa-based engineering office has been a key contributor to the growth of Matrix Service Company, providing industry-leading expertise in aboveground storage tanks and steel plate structures.

The acquisition of PDM (Pittsburgh Des Moines) brought more than 50 years of history and multi-discipline engineering services specializing in terminals, cryogenic storage applications, spheres and other steel plate structures.

Another acquisition- EDC - brought over 40 years of experience of technical expertise in design and installation of material handling systems.

Most recently, Matrix PDM acquired Houston Interests in December of 2016, expanding its breadth of services and its geographic reach with thousands of projects performed across the globe in the sulfur, food and grain, marine structure industries.

Together, we provide comprehensive engineering solutions that fit a wide range of unique customer needs and priorities. We are a single streamlined solution provider, serving customers across the globe.

The Matrix family of subsidiaries

Matrix Service Company is the parent to a family of subsidiaries that provides engineering, fabrication, construction and maintenance for oil, gas and chemical industries, bulk storage, electrical and industrial infrastructures.

Founded in 1984 with many acquisitions along the way, Matrix Service Company is headquartered in Tulsa, Oklahoma and trades under the NASDAQ symbol MTRX.

  • Matrix PDM Engineering
  • Matrix PDM provides world class, multi-discipline engineering around the world.

  • Matrix NAC
  • Our union labor subsidiary, Matrix NAC provides full service construction, maintenance and repair to energy, power and industrial customers across North America.

  • Matrix Service
  • Matrix Service provides full service construction, maintenance and repair to energy, power and industrial customers across North America.

  • Matrix Applied Technologies
  • Headquartered in Tulsa, OK, with regional offices in Seoul, Korea and Sydney, Australia, Matrix Applied Technologies sells aboveground storage tank products and API heaters across the globe.

Community Involvement

Community involvement is more than a core value -- it’s a commitment from all levels of the organization to improve the communities where we live and work. From supporting the United Way and participating in various races to local food drives and holiday gift collections, Matrix employees are passionate about giving back and supporting our communities.

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Leadership

Bradley J. Rinehart Headshot

Bradley J. Rinehart

President

Prior to becoming President of Matrix PDM Engineering, Bradley J. Rinehart served as Vice President of Matrix Service from May 1997 to December 2016; Regional Manager – Michigan Region from April 1991 to April 1997; Operations Manager – Michigan Region from January 1990 to March 1991; and as a Project Manager – Michigan Region from January 1988 to December 1989. Mr. Rinehart holds an API-653 certification as well as an installer/inspector certification from the State of Pennsylvania. Mr. Rinehart holds a Bachelor of Science Degree in Construction Science from the University of Oklahoma and is a past board member of the Tulsa Ronald McDonald House.

Kenneth L. Erdmann P.E. Headshot

Kenneth L. Erdmann P.E.

Senior Vice President

Senior Vice President Ken Erdmann holds a Bachelor of Science in Aeronautical and Astronautical Engineering from Purdue University (1990) and a Masters Degree in Civil Engineering from Oklahoma State University. Ken's engineering expertise has focused primarily in civil and structural engineering disciplines with emphasis in computer methods of structural analysis. As the first design engineer hired by Matrix PDM, Ken has over 20 years of experience with the Company. At Matrix PDM he has held positions of Design Engineer (1991-1995), Director of Engineering (1995-2011), Vice President of Engineering (2011-2016), and Senior Vice President (current). In these roles Ken has implemented new computer systems, led new product development and provided strategic planning for the company's engineering services. In industry, Ken has served on various American Petroleum Institute (API) committees and task groups for over 15 years. Under the API Committee on Refinery Equipment, Ken has chaired the manufacturer's and contractor's group and was recently named Chairman of the Design Subgroup for aboveground storage tanks. Ken has 56 professional engineering licenses throughout North America and is the named inventor for various Matrix patents.

Recognition

Matrix PDM Engineering is committed to delivering the very best to our customers, communities and employees. We're proud of our consistent recognition that reflects our culture and focus on excellence.

2018 - 2019 Great Place to Work®
Matrix is proud to consistently earn certification by Great Place to Work, the global authority on high-trust, high-performance workplace cultures. In the US, it produces the annual Fortune "100 Best Companies to Work For®" list.
   
   
ENR Top 400 Contractors list ENR's Top 400 Contractors List 2018
Engineering News Record names Matrix #74 on its annual Top 400 Contractors List.
   
   
2017 - 2018 Great Place to Work®

Matrix is proud to once again be certified by Great Place to Work, the global authority on high-trust, high-performance workplace cultures. In the US, it produces the annual Fortune "100 Best Companies to Work For®" list.

   
   
ENR Top 400 Contractors list ENR's Top 400 Contractors List 2017
Engineering News Record names Matrix #56 on its annual Top 400 Contractors List.
   
   
2016 - 2017 Great Place to Work®

Matrix is the only industrial contractor to be certified by Great Place to Work, the global authority on high-trust, high-performance workplace cultures. In the US, it produces the annual Fortune "100 Best Companies to Work For®" list.

   
   
ENR Top 400 Contractors list ENR's Top 400 Contractors List 2016
Engineering News Record names Matrix #49 on its annual Top 400 Contractors List.
   
   
Oklahoma Inc. - Best Performing Businesses List 2016
Oklahoma Inc. names Matrix #8 on its list of Best Performing Businesses in 2016.
   
   
Forbes - America's Most Trustworthy Companies 2016
Forbes recognizes Matrix as one of the 100 most trustworthy companies in America. Only 24 companies, including Matrix, have been recognized more than once.
   
   
ENR Top 400 Contractors list ENR's Top 400 Contractors List 2015

Engineering News Record names Matrix #43 on its annual Top 400 Contractors List.
   
   
ENR Top 400 Contractors list ENR's Top 400 Contractors List 2014

Ranked #56 on ENR's Top 400 Contractor list. ENR also recognized Matrix as the number 16 contractor in the petroleum sector and as a top 50 contractor working abroad for its work in Canada.
   
   
Forbes - America's Most Trustworthy Companies 2014
Forbes recognizes Matrix as one of the 100 most trustworthy companies in America. Only 24 companies, including Matrix, have been recognized more than once. 
   
   
ENR Top 400 Contractors list ENR's Top 400 Contractors List 2013

Engineering News Record names Matrix #77 on its annual Top 400 Contractors List.
   
   
ENR Top 400 Contractors list ENR's Top 400 Contractors List 2012

Engineering News Record names Matrix #80 on its annual Top 400 Contractors List.
   
   
ENR Top 400 Contractors list ENR's Top 400 Contractors List 2011

Engineering News Record names Matrix #82 on its annual Top 400 Contractors List.
   
   
ENR Top 400 Contractors list ENR's Top 400 Contractors List 2010

Engineering News Record names Matrix #71 on its annual Top 400 Contractors List.
   
   
ENR Top 400 Contractors list ENR's Top 400 Contractors List 2009

Engineering News Record names Matrix #87 on its annual Top 400 Contractors List.
   
   
ENR Top 400 Contractors list ENR's Top 400 Contractors List 2008

Engineering News Record names Matrix #97 on its annual Top 400 Contractors List.
   
   
ENR Top 400 Contractors list ENR's Top 400 Contractors List 2007

Engineering News Record names Matrix #108 on its annual Top 400 Contractors List.
   
   
ENR Top 400 Contractors list ENR's Top 400 Contractors List 2006

Engineering News Record names Matrix #102 on its annual Top 400 Contractors List.
   
   
ENR Top 400 Contractors list ENR's Top 400 Contractors List 2005

Engineering News Record names Matrix #56 on its annual Top 400 Contractors List.
   
   
ENR Top 400 Contractors list ENR's Top 400 Contractors List 2004

Engineering News Record names Matrix #137 on its annual Top 400 Contractors List.
   
   
Fortune Magazine's 100 Fastest Growing Companies 2004

Matrix is ranked #55 in Fortune Magazine's 100 Fastest Growing Companies in 2004.
   
   
ENR Top 400 Contractors list ENR's Top 400 Contractors List 2003

Engineering News Record names Matrix #182 on its annual Top 400 Contractors List.
   
   
Daily Oklahoman - Top 50 Publicly Traded Companies in Oklahoma 2003
The Daily Oklahoman ranks Matrix as #1 on its Top 50 Publically Traded Companies in Oklahoma.
   
   
ENR Top 400 Contractors list ENR's Top 400 Contractors List 2000

Engineering News Record names Matrix #172 on its annual Top 400 Contractors List.
   
   
Fortune Magazine's 100 Fastest Growing Companies 1992

Matrix is ranked #58 in Fortune Magazine's 100 Fastest Growing Companies in 1992.
   
   
Business Week's Top 100 Small Growth Companies

Business Week recognizes Matrix in its Top 100 Small Growth Companies in 1992.
   
   
Forbes - 200 Best Small Companies

Forbes ranks Matrix #4 on its list of the 200 Best Small Companies in 1992.

Testimonials

“Without [Matrix PDM], we would not have been able to do the job.”

Hans-Martin Schuster
Neuhaus Neotec

“The engineering work done by [Matrix PDM] has always been of the highest quality and completed in a very professional manner.”

Gary Roark
Pechiney Rolled Products

“The work, executed as a fast-track project, comprised more than 190,000 man-hours and was executed to the complete satisfaction of Sincor.”

Finlay Mclay
Sincor