OnQuest is a specialty engineering company focused at direct fired equipment supply to the Refinery and Petrochemical Industries and turnkey supply of small-scale processing plants for LNG, Hydrogen and Waste to Energy applications. OnQuest is uniquely positioned to provide a single point of accountability by teaming with our in-house construction groups (ARB and Primoris Industrial Constructors (formerly James Construction)), allowing us to provide both Union and Non-Union construction solutions to our customers.

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OnQuest was founded by ARB in 2002, as a full-service engineering company and quickly became an industry leader in the areas of process plant engineering, applied combustion technology and fired equipment supply. OnQuest expanded its capabilities and global reach through the acquisition of Born Canada in 2005.

We specialize in lump-sum, turnkey supply of small-scale processing plants including LNG, Hydrogen Reforming and Waste to Energy applications. Through the financial backing of the Primoris Group, OnQuest is uniquely position to provide a full EPC Wrap in support of project financing. Our streamlined methodology to project execution, positions us as the low-cost solution provider in the industries we serve.

OnQuest also specializes in the design and supply of direct-fired heaters for all types of refinery and petrochemical applications including Crudes, Vacuums, Cokers, CCRs, Hydrocrackers and Hydrofiners, as well as, Syngas Reformers for Ammonia, Hydrogen and Methanol Production. Our revamp services offering allows us to assist clients with capacity improvement, energy optimization and emission control. Our applied expertise in the area of combustion design, insures our equipment performs to client specifications and operates safely and reliably.


EPC Supply of Small-Scale Process Plants including:

  • LNG
  • Hydrogen
  • Waste to Energy

Syngas Reformers Design and Supply for Production of:

  • Hydrogen
  • Methanol
  • Ammonia

Design and supply of Direct Fired Heater including:

  • Crude Heaters
  • Vacuum Heaters
  • Coker Heaters
  • CCR Heaters
  • Hydrocracker Heaters
  • Steam Super Heaters
  • Charge Heaters
  • Hot Oil Heaters

Design and Supply of WHRUs for gas turbine applications

Design and supply of SCRs for NOx Control

Revamp Services Direct-Fired Heaters and Syngas Reformers including:

  • Capacity Improvement
  • Energy Optimization
  • Emission Control
  • Emergency Rebuilds
  • Studies
  • Spare Parts

Direct-Fired Heater Training in the areas of:

  • Heater Design
  • Operation
  • Maintenance


  • Refining
  • Petrochemical
  • Syngas Production (Ammonia, Hydrogen, Methanol)
  • Gas Processing
  • LNG
  • Waste to Energy



180 East Arrow Highway
San Dimas, CA 91773
Phone: +1-909-451-0500
FAX: +1-909-451-0495


3582 – 118th Avenue S.E.
Calgary, Alberta T2Z 3X1
Phone: +1-403-252-2676
FAX: +1-403-252-2688

8111 Ashlane Way
Suite 110
The Woodlands, TX 77382
Phone: +1-281-889-3005