Matrix Service Company Headquarters in Tulsa OK

About Matrix Service Company

A top tier EPC contractor through its divisions , Matrix Service Company provides complete lifecycle solutions to customers across the energy and industrial markets, including many of the most well recognized companies in the world.

Through both organic and acquisitive growth, it is a success story made possible by the commitment of our more than 5,000 employees to our core values: Safety, Integrity, Positive Relationships, Stewardship, Community Involvement, and Delivering the Best.

And it is this commitment that has resulted in Matrix consistently being recognized as a top tier contractor by Engineering-News Record, as one of Forbes' Most Trustworthy Public Companies四人斗地主, and as a ® in 2016-2017 and 2018-2019.

Matrix Service Company reports combined performance in four operational segments:

  1. Electrical infrastructure
  2. Oil, gas and chemical
  3. Storage Solutions
  4. Industrial

四人斗地主All four divisions report as one under MTRX.

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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The Matrix family of divisions

Matrix subsidiary lifecycle

Matrix Service Company is the parent to four divisions that provide engineering, fabrication, construction and maintenance to the energy and industrial markets.

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
  • provides world class multi-discipline engineering around the world.

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

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

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


John R Hewitt

John R. Hewitt

President and Chief Executive Officer

John R. Hewitt has been President and Chief Executive Officer at Matrix Service Company since May 2011. Prior to joining Matrix Service, Mr. Hewitt served as Senior Vice President of Aker Solutions where he was responsible for providing executive oversight on major capital projects in Power and LNG. He previously served as President, United States Operations, at Aker Solutions E&C US, Inc. from 2007 to 2009 where he was responsible for managing all construction services in North America. Previous to that, he served as President of Aker Construction Inc. where he had full profit and loss responsibility for a multi-disciplined direct hire industrial construction business operating throughout North America. Mr. Hewitt has spent his entire career in the engineering, procurement, and construction (EPC) industry. Mr. Hewitt earned a Bachelor of Business Administration degree in Finance from Stetson University in 1980 and a Bachelor of Science degree in Civil Engineering from Florida Institute of Technology in 1983. Mr. Hewitt is a member of the Construction Industry Institute; he has served on various committees including the Implementation Strategy Sub-Committee and Optimizing Project Organizations research committee.

Joseph F. Montalbano

四人斗地主Joseph F. Montalbano

Chief Operating Officer

Joseph F. Montalbano has served as Chief Operating Officer for Matrix Service Company since April 2008. From 2002 to 2008, Mr. Montalbano served as Senior Vice President - Senior Project Director Energy Sector of Black & Veatch. Prior to working for Black & Veatch from 1972 to 2002, Mr. Montalbano served numerous project management roles with a national construction firm serving the energy sector. Throughout this 42 year career Mr. Montalbano has provided leadership to the engineering, procurement and construction of domestic and international electric generation stations, LNG regasification terminals, major fuel oil storage depots, repair and maintenance services and facility expansions at numerous domestic refineries, and capital expansions of the HV electrical infrastructure in the US. Mr. Montalbano holds a Bachelor of Science in Electrical Engineering and Masters of Science in Electrical Engineering degrees from Polytechnic Institute of Brooklyn. He earned a Master’s in Business Administration from New York Institute of Technology and is registered as a Professional Engineer in multiple states.

Chief Financial Officer of Matrix Service Company

四人斗地主Kevin S. Cavanah

四人斗地主Chief Financial Officer

Kevin S. Cavanah has served as Chief Financial Officer since December, 2010. Mr. Cavanah served as Vice President, Accounting and Financial Reporting from August 2007 to December 2010 and as Controller from April 2003 to August 2007. Prior to joining the Company, Mr. Cavanah served as an Accounting Manager for Williams Communications from 2001 to 2003 and as an Accounting Manager for The Williams Companies from 1998 to 2001. Prior to joining Williams Companies, Mr. Cavanah served as an Audit Manager for Ernst & Young LLP. Mr. Cavanah has a Bachelor of Science Degree in Business Administration in Accounting from the University of Arkansas and is a member of Financial Executives International.

四人斗地主Alan Updyke

四人斗地主President, Operations

四人斗地主Alan Updyke is President of Operations at Matrix Service Company. Prior to this position, Mr. Updyke served division Matrix Service Inc. in multiple capacities-- most recently as President from February 2018 to September 2019. Prior to his presidency, he was the Senior Vice President, Operations for all Matrix Service Inc. operating divisions throughout the U.S. and Canada including Estimating, Project Controls, Business Development and Craft Recruiting. He joined Matrix Service Inc. as Vice President of Construction in July 2012. Before joining Matrix Service Inc., Mr. Updyke spent 17 years with Brinderson, most recently as President of Western Operations. In that role, Mr. Updyke was responsible for providing strategic leadership and management direction to four regional offices and all major capital construction projects. Before that, Mr. Updyke served in various management positions with Brinderson including Chief Operating Officer, Executive Vice President, Vice President of Construction, and Vice President of Business Development. Previous to that, Mr. Updyke held the General Managers position for Turner Industries overseeing West Coast Operations.

Nancy E. Austin

四人斗地主Nancy E. Austin

四人斗地主Chief Administrative Officer and Vice President

Nancy E. Austin is Chief Administrative Officer and Vice President, Strategic Services and Administration, with responsibility for leading our Human Resources, Training and Development and Corporate Marketing divisions. Mrs. Austin served as Vice President, Human Resources, from January 2006 – August 2016 and as Director of Human Resources from September 2000 to January 2006. Prior to joining the Company, Mrs. Austin worked for TV Guide, Samson Resources and Villareal & Associates specializing in human resource management, employee relations, and consulting. Mrs. Austin holds a Bachelor of Science Degree in Political Science from Oklahoma State University and is a certified Professional in Human Resources (PHR). She is also a member of the Society for Human Resource Management, World-at-Work and Tulsa Area Human Resources Association.

Quinton Beasley Headshot

Quinton Beasley

四人斗地主Vice President, Accounting

Quinton Beasley serves as Vice President, Accounting for Matrix Service Company. He joined Matrix Service Company in 2005 as the Director of Accounting and was promoted to the Company's Controller position in 2010. Mr. Beasley began his career as an auditor for Ernst & Young and subsequently gained considerable experience with The Williams Companies, WilTel and Phillips Petroleum prior to joining Matrix. Mr. Beasley is a Certified Public Accountant. He graduated from the University of Arkansas.

Rick J. Bennett

Rick J. Bennett

四人斗地主Vice President and Chief Information Officer

Rick J. Bennett joined Matrix Service Company as Vice President and Chief Information Officer in 2014. Prior to Matrix, Rick served ten years as the Chief Information Officer at T.D. Williamson based in Tulsa, Oklahoma. His past professional achievements include Information Technology leadership positions at Blue Cross Blue Shield of Oklahoma, Blakely Crop Hail Insurance, National Farmers Organization, Taylor Ball Construction Management and The Principal Financial Group. Mr. Bennett holds a Masters of Energy Business (MEB) degree from the University of Tulsa, has obtained an Executive Certificate from the Massachusetts Institute of Technology (MIT) Sloan School of Management, and achieved his Bachelors of Business from Western Illinois University majoring in Management Information Systems and minoring in Computer Science. Early in his career he served in the United States Navy as an Interior Communications Electrician. A father of three, Bennett serves as past-Chairman of the Board for Junior Achievement of Eastern Oklahoma and the Deans Council for Northeastern State University College of Business and Technology.

Jack Frost

四人斗地主Vice President, Health, Safety & Environment

四人斗地主Jack Frost has served as the Vice President of Health, Safety & Environment (HSE) for Matrix Service Company since 2012. Prior to joining Matrix, he served as Global Quality, Health, Safety, Environment & Security (QHSES) Director for Tesco Corporation where he was responsible for the development and implementation of all global strategic and tactical QHSES initiatives. Before that, he served as the Europe-Eurasia HSE Manager for Hess Corporation. Jack received his Bachelor of Arts degree in Legal Studies from the University of Louisiana at Monroe. He is a Board Certified Safety Professional (CSP) and also holds designation as an Associate in Risk Management (ARM). He is a member of the American Society of Safety Engineers (ASSE). Jack is also a Certified TapRoot® instructor.

四人斗地主Melissa K. Gilliland

Vice President, Human Resources

四人斗地主Melissa K. Gilliland serves as Vice President, Human Resources for Matrix Service Company. Ms. Gilliland joined Matrix Service Company in 2001 as a Human Resources Administrator and since then has served as Corporate Human Resources Manager from 2003 -2011 and Director, Human Resources from 2011 – 2019. Ms. Gilliland holds a Bachelor of Science in Business Administration and a Master of Arts in Industrial/Organizational Psychology, both from the University of Tulsa. She also holds certifications as a Professional in Human Resources (PHR) and SHRM Certified Professional (SHRM-CP). Last, Ms. Gilliland is a member of SHRM, World at Work and the Tulsa Area Human Resources Association.

Justin D. Sheets

Justin D. Sheets

四人斗地主Vice President and General Counsel

Justin Sheets serves as Vice President and General Counsel. Prior to his current role, Mr. Sheets served as Vice President, Legal and Risk Management, from October 2014 to September 2019. Since joining Matrix Service Company in 2002, Mr. Sheets has served as Sr. Director, Legal and Risk Management; Director, Risk Management; and Sr. Counsel, and Consultant. Prior to Matrix Service Company, Mr. Sheets worked with Conway, McKenzie and Dunleavy in New York consulting with construction clients with a primary focus on mergers and acquisitions, restructuring and liquidations. Mr. Sheets holds a Bachelor of Science Degree in Environmental Health and Safety Sciences from Indiana State University and a Juris Doctorate from the University of Tulsa. Mr. Sheets holds Construction Risk and Insurance Specialist certification and is a member of the New Jersey Bar Association, Association of Corporate Counsel and the International Risk Management Institute.