
Quest Integrity Group has prequalified several mechanical decoking companies around the world to push our FTIS™ and InVista™ inspection tools through fired heater coils, process piping and pipelines.
AJAKS
AJAKS offers decoking of fired heaters and cleaning of long technological pipelines through pigging technology. http://www.Ajaks.eu/

Anabeeb
Anabeeb provides decoking of fired heater coils through its strategic Total Productive Maintenance approach. http://www.anabeeb.net/
Contract Resources
Contract Resources has developed an integrated range of specialized cleaning services. This ensures we offer the best solution to clients cleaning problems and clean surfaces or areas, which have been impossible to clean with traditional methods. http://www.contractresources.com/
CR Asia
CR Asia has extensive contracting experience providing catered service packages, 'blinds to blinds' jobs, and/or turnkey maintenance services during major shutdowns and turnarounds.
http://www.crasia.net
Decoking Descaling Technologies (DDT)
The DDT Pigging System - an advanced system for decoking fired heaters - is a fully proven and extremely effective process that removes even the hardest coke and scale from heater tubes. http://www.Decoking.com/

Hydro Kleen Group S.A.
HKS is the latin american leader in to decoking of fired heaters coils and pipelines, offering highly experienced technicians, reliable equipment and final inspection services.
http://www.hydrokleengroup.com
Magicrot Services
Magicrot Services is a company dedicated primarily to the industrial and mechanical services for the refining, petrochemical, nuclear, and big industry sectors.
http://www.magicrot.ru/en

Mun Siong Engineering
Mun Siong Engineering is an integrated mechanical engineering, electrical and instrumentation service provider for the process industry. http://www.mun-siong.com/
PEK Technical
PEK Technical Co., Ltd. is a Tokyo, Japan based company offering mechanical decoking of coils in Fired Heaters and cleaning of pipelines. They have been supplying specialty cleaning services for several decades, utilizing proprietary technology and knowhow. http://www.pektech.co.jp/
Turbinate
Turbinate InternationalB.V. is a Dutch company specializing in the internal cleaning of pipelines, transfer lines, furnaces and process lines from 2' to12' throughout Europe.
http://www.turbinate.com/
United Energy Services (UES)
UES is a North American based company providing speciality cleaning services into the PetroChemical and Power industries. They specialize in mechanical decoking of fired heater coils along with mechanical cleaning of Pipelines.
http://www.unitedenergyservices.ca