OnQuest provides global fired heater engineering, API 530 and API 560 heater design, syngas reformers, waste heat recovery units, SCR systems, and heater revamp solutions for the refining, petrochemical, hydrogen, ammonia, LNG, and energy industries. Our expertise includes crude heaters, coker heaters, hydrotreater heaters, burner management systems, emissions reduction, energy optimization, and emergency support designed to improve reliability, efficiency, and long-term plant performance.
| Website | http://www.onquest.com |
| Revenue | $8 million |
| Employees | 71 (16 on RocketReach) |
| Founded | 2002 |
| Address | 2727 East 21st St Suite 400, Tulsa, Oklahoma 74114, US |
| Technologies |
JavaScript
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| Industry | Oil and Gas, Industrial Machinery & Equipment, Manufacturing |
| Keywords | Oil And Gas, Energy, Petroleum, Exploration, Production, Refining, Distribution, Natural Gas, Fossil Fuels, Hydrocarbons, Upstream, Midstream, Downstream, Energy Resources, Fuel, Commodities, Petrochemicals, Renewable Energy, Sustainability, Environmental |
| Competitors | Siemens, Roche, Thermo Fisher Scientific, Abbott, Mayo Clinic Laboratories, Quest Diagnostics, Labcorp, Corteva Agriscience, Covance, BioReference Laboratories +46 more (view full list) |
| SIC | SIC Code 356 Companies, SIC Code 35 Companies |
| NAICS | NAICS Code 333 Companies, NAICS Code 3339 Companies, NAICS Code 33 Companies |
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Onquest Questions
The Onquest annual revenue was $8 million in 2026.
Paul Miller is the Self employed consultant of Onquest.
16 people are employed at Onquest.
Onquest is based in Tulsa, Oklahoma.
The NAICS codes for Onquest are [333, 3339, 33].
The SIC codes for Onquest are [356, 35].
Top Onquest Employees
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Ardalan Fathabadi
Senior Process Engineer at Onquest
Irvine, CA, US1 -
Rha N
Director at Onquest
Philippines -
Edwin Palencia
Principal Piping Stress Engineer at Onquest
Los Angeles, CA, US35+ -
Patty Hess
Project Manager and QMS Administrator at Onquest
San Dimas, CA, US12
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