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  • Thermal –  Inspection of complete Thermal Power equipment covering, Boiler & accessories, Boiler Piping, Turbines & Accessories, Generators, ESP / Cooling Towers / Coal & Ash  Handling / Water Treatment / AC & Ventilation equipment and other associate peripherals
  • Nuclear -QA & QC of Nuclear Reactors during Shut downs; Inspection of components used for the Reactivity Mechanism of Reactors, Sodium & Argon Tanks for Fast Breeder Reactors. In-cell & external piping for Nuclear Fuel Recycling Plants
  • Hydro – Inspection of Hydro Turbines, Hydro Generators, Generator Transformer, Valves and associated excitation Systems
  • Renewable Energy – Inspection of Windmill Towers, Solar Panels & associated hardware & equipment. Asset Management of Solar Power Projects. Field Quality Assurance for Solar Power Projects & Audit of Wind farms. QUEST also provides Training in Operation and Maintenance of Solar Power Projects.


Inspection of Aircraft Components & Sub-Assemblies including Engine Parts, Landing Gear and other System Critical elements. Inspection & Testing of Air Defence Vehicles covering mechanical, electrical, instrumentation, radar & communication elements and equipment.
Inspection of components for part of Satellite deployment Mechanisms.

Defence – Land, Air & Marine

Specialized in Inspection of Defence related Equipment for all the three Services. Knowledge of MIL standards, stringent requirements. QA & QC Services are offered from manufacture of required Raw Material up to the finished component / product.


QUEST is involved in Supervision and Inspection Services at Petroleum Refineries and provide QC Services to various Public & Private Sector Petroleum Companies in India. QUEST provides TPI Services for bought-out items for the Petroleum Sector and inspection of pipelines and firefighting Systems at intermediate Pumping Stations. We have capability for Inspection and T4S Audit of CGD, NGPL, PPP & Petroleum / Gas Storage facilities.

Construction Equipment

Earth Moving, Fabrication for Tipper Truck Bodies, Fabricated Booms, Cabins, base frames, Hydraulic elements / systems for Earth Moving Equipment and Fabrication of Tipper Truck Bodies to International Standards for Export


QC Services of Cement Plant equipment & equipment consumables from Material Handling to Processing equipment.

Iron & Steel

We have expertise in providing QA & QC Services for the Iron and Steel Sector for their System critical areas and support Services. We provide QC Services for their Plant Packages covering Mechanical, Electrical, Electronic and Instrumentation.

General Engineering

Gear Boxes, Valves of all Types, Hydraulic / Pneumatic Systems, Winches / Cranes and a vast variety of components, sub-assemblies and Products.

Health Care

We provide QC Services for CT Scanners, X-ray Machines, PET CT, Ultrasound, Mobile X-ray Machines and Sub-Assemblies for Export. Inspection expertise is also provided at Component level (metal & non-metallic), cables, PCB’s & associated items.

Railways – Wagons & Shunting Locomotives

We provide Inspection Services for Quality Assurance of Rolling Stock viz Railway Wagons and Diesel-Electric Locomotives as per RDSO specifications and standards.

Electrical, Electronic & Instrumentation

QC of Elements / Sub-assemblies / Assemblies including DG Sets, Insulators, Transformers, Motors, Generators, Control Panels, Switch gear, Power, Instrumentation & Communication Cables, Batteries, Power Transmission Hardware, SCADA, PCB’s, PLC’s to name a few. Inspection done to Indian and International Standards including conformity to European Union CE Directives.

Our Clients

  • Mahagenco
  • Apgenco
  • KPCL
  • Hinduja
  • Tata Power
  • Adani
  • Reliance
  • Jindal
  • TRN
  • Jaypee
  • BHEL
  • L&T
  • Toshiba
  • Triveni
  • BGR
  • Thermax
  • DCPL
  • Alstom
  • Fichtner
  • BARC
  • MAPS
  • Bhavini
  • Dodsal
  • BPCL
  • Punj Lloyd
  • Avasarala
  • L&T
  • Andritz Hydro
  • Vatech
  • Flovel Energy
  • Mecamidi
  • Voith Siemens
  • Tata Power
  • Renew Power
  • Rays Power
  • Juwi
  • Ujjas
  • L&T
  • Suzlon
  • Inox
  • ADE
  • L&T
  • ISRO
  • Rolls Royce
Earth Moving
  • Volvo
  • L&T Komatsu
  • BEML
Defence – Land, Air & Marine
  • L&T Defence
  • L&T Marine
  • DRDO
Iron & Steel
  • Bhushan
  • Essar
  • Jindal
Construction Equipment
  • CPWD
  • L&T ECC
  • APWD
  • Tata SED
Health Care
  • GE-Healthcare
  • GE-Wipro
  • GE-BEL
  • IOCL
  • MRPL
  • GAIL
  • RIL
  • HPCL
  • Pune Gas
  • Ambuja
  • Wonder
  • Jaypee
  • Toshali
  • JK Cements
  • Gorahi
General Engineering
  • SKF
  • Bosch Rexroth
  • Flowserve
Electrical, Electronic & Instrumentation
  • L&T EBG
  • ABB
  • Siemens
  • Crompton Greaves
  • BEL
  • Triveni
  • Schneider
  • BHEL