The direct hire union division of Matrix Service Company, Matrix NAC has provided procurement, construction, maintenance and repair services to the energy and industrial markets across North America since 1986. Our unparalleled commitment to safety, quality and client success has made us an employer and provider of choice throughout the years, as well as earned us industry recognition year after year.
Parent company Matrix Service Company began its union operations through Matrix NAC in 1986, but Matrix NAC increased its experience and capabilities exponentially through its acquired businesses which include S.M. Electric and Kvaerner North American Construction. This proud legacy extends as far back as 1946. Today, Matrix NAC enjoys a long-standing reputation for excellence across a host of services including large capital construction, oil and gas storage, power generation, power delivery, integrated iron and steel and refinery and petrochemical work.
We maintain strong relations with national labor groups with active participation in the National Maintenance Agreement Policy Committee and other labor management committees and associations, both on local and national levels. These crucial relationships support North America's craftspeople and ensures that we effectively staff projects with the most qualified craftsmen on the continent.
We go above and beyond corporate responsibility to make sure we touch lives, affect the community and help those in need. From supporting the United Way to local food drives and holiday gift collections, Matrix employees are passionate about giving back and supporting our communities.
Learn MoreMatrix Service Company and its divisions provide engineering, fabrication, construction and maintenance to the energy and industrial industries.
Matrix Service Company is headquartered in Tulsa, Oklahoma and trades under the NASDAQ symbol MTRX.
President
Prior to becoming President, Douglas J. Montalbano served as Senior Vice President of Operations. Mr. Montalbano joined the company in November 2014 as Vice President, Business Development. Prior to joining Matrix NAC, he served as Director, Business Development Fossil/T&D for URS Energy & Construction, Inc. Mr. Montalbano held various positions of increasing responsibility at URS Energy & Construction, Inc. and its predecessor company since 2004, including Associate General Counsel. Mr. Montalbano has a Bachelor of Science in Economics from Villanova University College of Commerce and Finance and a Juris Doctor from Villanova University School of Law. Mr. Montalbano is a licensed attorney in New York and New Jersey.
Vice President, Operations
Davis Foreman is the Vice President of Operations at Matrix NAC, overseeing the company’s infrastructure, transmission & distribution, energy, and aboveground storage tank (AST) segments. Joining Matrix in 2024 with over 28 years of experience, Mr. Foreman has honed his expertise in construction management and commissioning across fossil and nuclear power generation, as well as utility power delivery. Before Matrix, he held roles of increasing responsibility at both United E&C (including its legacy companies) and KBR, most recently serving as Senior Director of Construction and Commissioning Operations at United E&C. Mr. Foreman is a graduate of Maine Maritime Academy and holds a Bachelor of Science degree in Marine Engineering.
General Manager, AST North America
Jeremy Davis, MBA, PMP, is the General Manager – AST North America at Matrix NAC, managing the company’s aboveground storage tank operations in North America. Mr. Davis joined Matrix NAC in 2007, first as a project manager and most recently as Division Manager AST for the U.S. and Canada. He was promoted to General Manager, AST North America, in July of 2023. Mr. Davis has a Bachelor of Arts in Accounting and a Master of Business Administration in Strategic Management from Temple University. Mr. Davis is also a certified project management professional (PMP), qualifying party on multiple states in which we operate and is API 635 certified along with various other industry accreditations.
Boilermakers Tripartite Committee*
Construction Users Roundtable (CURT)
Construction Industry Institute*
The Association of Union Constructors (TAUC)
National Association of Construction Boilermaker Employers (NACBE)
National Maintenance Agreement Policy Committee (NMAPC)
North American Contractors Association
International Council of Employers of Bricklayers (ICE)
Ironworker Management Progressive Action Cooperative Trust (IMPACT)
National Trustee (appointed in 2010)
International Brotherhood of Electrical Workers (IBEW)
International Masonry Institute (IMI)*
National Refractory Committee
National Electrical Contractors Association
Operating Engineers National Training Fund
Helmets to Hardhats
ENR's Top 400 Contractors List 2024 | |
Engineering News-Record names Matrix #165 on its annual Top 400 Contractors List. | |
VETS Indexes Recognized Employer Matrix is proud to to be an awardee in VETS Indexes Employer Awards, recognizing the organizations that do the most to hire, retail, promote and support veterans. |
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Great Place to Work 2024 | |
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's Top 400 Contractors List 2023 | |
Engineering News-Record names Matrix #148 on its annual Top 400 Contractors List. Matrix additionally ranked highly in the following sub-categories: #5 among maintenance contractors, #9 in transmission & distribution, #10 in petroleum, #12 in refineries and petrochemical plants, #15 in fossil fuels, and #24 in power contractors. | |
Great Place to Work 2023 | |
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's Top 400 Contractors List 2022 | |
Engineering News-Record names Matrix #151 on its annual Top 400 Contractors List. | |
Great Place to Work 2022 | |
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's Top 400 Contractors List 2021 | |
Engineering News-Record names Matrix #116 on its annual Top 400 Contractors List. | |
2020 - 2021 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's Top 400 Contractors List 2020 | |
Engineering News-Record names Matrix #58 on its annual Top 400 Contractors List. | |
2019 - 2020 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's Top 400 Contractors List 2019 | |
Engineering News-Record names Matrix #71 on its annual Top 400 Contractors List. | |
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'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. |
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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. |
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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's Top 400 Contractors List 2015 | |
Engineering News-Record names Matrix #43 on its annual Top 400 Contractors List. |
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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. |
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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's Top 400 Contractors List 2013 | |
Engineering News-Record names Matrix #77 on its annual Top 400 Contractors List. |
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ENR's Top 400 Contractors List 2012 | |
Engineering News-Record names Matrix #80 on its annual Top 400 Contractors List. |
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ENR's Top 400 Contractors List 2011 | |
Engineering News-Record names Matrix #82 on its annual Top 400 Contractors List. |
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ENR's Top 400 Contractors List 2010 | |
Engineering News-Record names Matrix #71 on its annual Top 400 Contractors List. |
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ENR's Top 400 Contractors List 2009 | |
Engineering News-Record names Matrix #87 on its annual Top 400 Contractors List. |
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ENR's Top 400 Contractors List 2008 | |
Engineering News-Record names Matrix #97 on its annual Top 400 Contractors List. |
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ENR's Top 400 Contractors List 2007 | |
Engineering News-Record names Matrix #108 on its annual Top 400 Contractors List. |
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ENR's Top 400 Contractors List 2006 | |
Engineering News-Record names Matrix #102 on its annual Top 400 Contractors List. |
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ENR's Top 400 Contractors List 2005 | |
Engineering News-Record names Matrix #56 on its annual Top 400 Contractors List. |
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ENR's Top 400 Contractors List 2004 | |
Engineering News-Record names Matrix #137 on its annual Top 400 Contractors List. |
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Fortune Magazine's 100 Fastest Growing Companies 2004 | |
Matrix is ranked #55 in Fortune Magazine's 100 Fastest Growing Companies in 2004. |
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ENR's Top 400 Contractors List 2003 | |
Engineering News-Record names Matrix #182 on its annual Top 400 Contractors List. |
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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's Top 400 Contractors List 2000 | |
Engineering News-Record names Matrix #172 on its annual Top 400 Contractors List. |
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Fortune Magazine's 100 Fastest Growing Companies 1992 | |
Matrix is ranked #58 in Fortune Magazine's 100 Fastest Growing Companies in 1992. |
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Business Week's Top 100 Small Growth Companies | |
Business Week recognizes Matrix in its Top 100 Small Growth Companies in 1992. |
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Forbes - 200 Best Small Companies | |
Forbes ranks Matrix #4 on its list of the 200 Best Small Companies in 1992. |
“I wanted to take a moment to recognize the work Billy McMullen has done here at Bridgeport Harbor. The work lists that he has created has made this job much more efficient that we are accustomed to. Our technical requirements were consistently made more effective with helpful suggestions and efficient execution. The record keeping and data sheet experience has been positive as well.
GE and Matrix mechanical interacted through Billy throughout the entirety of the project. Every step of the way he has shown integrity, hard work, patience, and a level of quality that is above and beyond what is expected. Not only has he performed his scope of work, he actively would learn and present new ideas to the GE team that would save time and money for Matrix and GE. Billy was always able to make safety a top priority and inspired that in those who worked with him.
It was a pleasure to work with Billy McMullen, and I hope GE and Matrix have the opportunity to work together in the future.”
“Matrix isn’t the mega-sized construction company, but they also aren’t a small boutique firm. They provide a tremendous amount of flexibility and ingenuity, and are actively engaged at every level. At REV LNG, we pride ourselves on listening to our customers and doing out best to design and implement the best strategy and solutions for them. Matrix does the same.”
“The culture of safety Matrix NAC displays on the 13.2 KV Feeder Project is that which we seek to find in all of our employees. This reveals that these employees are involved in an ongoing training environment and it is the reason we have worked thus far without incident.”