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42 Years
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Your Trusted Partner for Industrial Construction Solutions
Matrix Service Company has evolved from a small garage operation into a mid-sized public corporation delivering engineering, fabrication, construction, maintenance, and repair services across North America and globally. With over 40 years of experience and 2,000+ employees, we specialize in serving energy, industrial, and power infrastructure markets through our four operating companies. Our commitment to safety, integrity, and excellence has earned recognition as a top-tier contractor by Engineering-News Record and a Great Place to Work for nine consecutive years. We focus on delivering projects on time and on budget while maintaining ISO 9001-certified quality management systems and OSHA VPP Star safety standards.

Our clients benefit from 90% repeat business, reflecting our ability to solve complex challenges in oil, gas, power generation, and renewable energy storage. Through organic growth and acquisitions, we combine the agility of a small firm with the stability of a large organization, serving markets including LNG facilities, petrochemical plants, and utility infrastructure. Our core values drive every project, ensuring we meet the needs of communities, shareholders, and industry partners worldwide.
Services
Engineering Design Construction Services Maintenance Solutions Storage Tanks Power Infrastructure Industrial Facilities LNG Processing Fabrication Turnaround Services Seismic Upgrades
Details
  • Year established: 1984
Highlights and features
  • 40+ years delivering energy and industrial infrastructure projects
  • ISO 9001-certified quality management systems
  • 90% of revenue from repeat customers
  • 2,000+ skilled employees across 20+ global locations
  • Recognized 9 consecutive years as Great Place to Work
Associations and certifications
  • ISO 9001
  • OSHA VPP Star
  • Gold Shovel Standard
What people say
Powerful approach Quality of work Reliable supplier Aggressive schedules No lost time injuries
Services
Engineering Design
Our engineering teams provide FEED studies, conceptual design, and detailed engineering for industrial facilities. We specialize in seismic preparedness and modular construction solutions. Clients benefit from 30+ years of expertise in power infrastructure and gas processing projects.
Construction Services
We deliver full-service construction for energy and industrial facilities including cryogenic tanks, sulfur recovery systems, and power distribution networks. Our 2,000+ workforce executes projects across 20+ global locations with ISO-certified quality standards.
Maintenance Solutions
Routine maintenance and emergency repair services cover API 653 tank repairs, storm response, and plant turnarounds. Our teams maintain critical infrastructure for 90% of North American LNG facilities and major refineries.
Storage Tanks
We design and construct aboveground storage tanks, specialty vessels, and LNG containment systems. Our FlowDome geodesic domes and internal floating roofs serve the petroleum, chemical, and renewable energy sectors globally.
Power Infrastructure
Our power division handles utility-scale generation, substations, and renewable energy storage. We build battery storage systems, grid upgrades, and data center power solutions with expertise in fossil fuel and LNG peak shaving facilities.
People
John Hewitt
President and CEO
John R. Hewitt leads Matrix Service Company with 30+ years in EPC industry. He previously held executive roles at Aker Solutions, overseeing major LNG and power projects. Holds dual degrees in finance and civil engineering.
Kevin Cavanah
CFO
Kevin Cavanah has served as CFO since 2010 with 25+ years financial leadership experience. Former audit manager at Ernst & Young, he holds accounting degrees from University of Arkansas and CPA certification.
Kenneth Erdmann
Vice President Engineering
Ken Erdmann directs engineering with 30+ years in structural analysis and cryogenic storage. Holds 56 professional engineering licenses and serves as API committee chairman for storage tank design standards.
Mark Fillman
Vice President Operations
Mark Fillman oversees AST operations with 25+ years at Matrix. Licensed civil engineer from Oklahoma State University, he has managed 1,000+ storage tank projects globally.
Douglas Montalbano
President Matrix NAC
Douglas Montalbano leads Matrix Service Company with 20+ years in construction management. Former attorney and business development leader at URS Energy, he holds law and economics degrees from Villanova University.
Questions
What industries does Matrix Service Company serve?
We serve energy, industrial, and power infrastructure markets including oil & gas, LNG, petrochemical, mining, aerospace, and renewable energy sectors.
Do you offer international project capabilities?
Yes, with 20+ locations across North America, Middle East, Asia Pacific, and Canada, we deliver projects globally through our four operating companies.
What safety certifications do you hold?
We maintain OSHA VPP Star status, Gold Shovel Standard certification, and ISO 9001:2015 quality management systems across our facilities.
Can you handle emergency infrastructure repairs?
Yes, our storm response and emergency repair teams operate 24/7 for critical infrastructure restoration in industrial and energy facilities.
What construction specialties do you offer?
We specialize in LNG storage tanks, sulfur recovery systems, power distribution networks, and modular construction for industrial facilities.
How experienced is your workforce?
Our 2,000+ employees include 56 licensed professional engineers and craftspeople with average 15+ years industry experience.