GISC delivers reliable industrial products, technical services, testing, rental, calibration, and specialized support solutions for Oman’s energy and industrial sectors.

  • GULF INDUSTRIAL SERVICES AND CONTRACTING PC 100, P.O. Box 886, Ghala, Muscat Sultanate of Oman
  • Call Us: +968 76966421 , +968 94077940 , +968 95913622

    (Sun - Thursday)

  • Sunday - Thursday

    (8 am - 06 pm)

Global Industrial Solutions

We Calibrate For you

• Accredited Industrial Calibration & Repair Laboratory.
• On-site Calibration & Testing Services.
• Mapping & Validation.
• Repair & OEM Support Services.

calibration services
calibration

We Offer.

• Accredited Calibration & Quality Services.
• Traceable to National & International Standards.
• Competitive Pricing & Prompt Turnaround Time.
• Express Calibration Services.
• Pick-Up & Drop-Off Services.
• Calibration Reminders.
• Calibration Contracts (ARC) & (AMC).
• Locations: Muscat & Sohar.

Accredited Industrial
calibration & repair Laboratory.

Pressure calibration laboratory

• Accredited Primary Calibration Facility for Dead Weight Testers – range up to 1200 Bar, offering primary dead weight tester calibration across the GCC with semi-automated cross-float calibration and accredited computer-generated certification.
• Calibration of Digital & Analog Gauges, Absolute & Vacuum Gauges, Differential Pressure Gauges, Digital Pressure Calibrators, Pressure & DP Transmitters, Transducers, Pressure Switches, Controllers/Indicators, Chart Recorders, Data Loggers & BP Apparatus.

Electrical test equipment laboratory

• Measure & Source: DC & AC Voltage, 2 & 4 Wire Resistance, Capacitance, Inductance, DC & AC Current, HV DC & AC up to 100 kV, Power, Energy, Harmonics, RF & Frequency.
• Electrical Instruments: Digital & Analog Multimeters, Clamp Meters, Insulation Testers, DLRO, Primary & Secondary Injection Kits, Dielectric Test Systems, Earth & Continuity Testers & Energy Meters.

Temperature and humidity calibration lab

• Temperature & Humidity Calibration: Temperature Calibrators, Temperature Measuring Instruments, RTDs, Thermocouples, Transmitters, Recorders, Thermostats, Ovens, Furnaces, Incubators, Temperature Baths, Freezers, Infrared Thermometers & Thermography Cameras.
• Humidity Instruments: Hygrometers, Humidity Chambers, Thermo-Hygrometers & Weather Stations.

Dimensional measurement laboratory

• Dimensional & Measurement Instruments: Measuring Scales & Tapes, ULM, Profile Projectors, Gauge Block Sets, In-Out Depth Micrometers, Vernier Calipers, Depth Gauges, Dial & Digital Indicators, Bore Gauges, Thread/Ring/Plug/Pin Gauges & Height Gauges.
• NDT & Inspection Equipment: DFT, Flaw Detectors & NDT Equipment.

Burette calibration laboratory

• Laboratory Testing Instruments: Micro Pipettes, Graduated Pipettes, Cylinders, Burettes, pH, Conductivity, TDS, ORP, DO, Turbidity, Oil-in-Water Analyzers, Density, Viscosity & Flash Point Testers.
• Safety & Inspection Testing: Gas Monitor Calibration & Repair (Single & Multi-Gas), Fixed Gas Systems, Gas Analyzers (SF₆, SO₂, NH₃, NO, NO₂, H₂, H₂S, O₂, CO, CO₂ & LEL), XRF Analyzers, Radiation Monitors, Safety Valve Testing & Repair, Leak Testing, Pressure & Hydraulic Pumps, Compressors, Welding Machines & Generators.

Hydraulic torque wrench calibration

• Torque Wrenches, Torque Multipliers, Hydraulic Torque Tensioners & Torque Calibrators.

Force calibration laboratory

• Force & Mechanical Testing: Force Gauges, Dynamometers, CTM (Compression Testing Machines) & Tensile Strength Machines.
• Mass & Balance Calibration: OIML Classes E1, E2, F1, F2, M1, M2 & M3, covering 1 µg to 20 kg; Analytical Balances, Bench Scales, Platform Scales, Crane Scales & Weighbridges.

Civil surveying laboratory

• Surveying & Measurement Instruments: Theodolites, Total Stations, Auto/Dumpy Levels, Laser Levels, Spirit Levels, Measuring Tapes & Distance Meters.
• Construction Testing Equipment: Cube Moulds, Concrete Thermometers, Tamping Rods, Sand Density Cones, Sieves & Slump Cones.

Miscellaneous instrument calibration

• Lux Meters, Timers, Generators, Vibration Meters, Sound Level Meters, Cable Detectors, Bridge Cam Gauges & Hi-Lo Gauges.

Onsite Calibration Services

• Energy Meter Testing & Energy Meter Test Bench Calibration.
• Valve Testing, Leak Testing, Shell Testing, Repair, Lapping & Machining.
• Rigs & Hoist Calibration Services.
• Testing Laboratory Calibration – Medical, Quality & Material Testing.
• Flow Meter Testing using Ultrasonic Clamp-On Flow Meters.
• Gas Monitor Calibration.
• Mobile Calibration Setup.
• Weighing Balance Calibration.

Mapping & Validation

• Storage, Vehicles, Rooms & Warehouses.
• IQ, OQ & PQ Validation Services.
• Cleanroom Validation, Autoclave, Freezer, Chiller & Cold Room Validation.
• Thermography Inspection Services.

Repair & OEM Support Services

Repair

• Electrical Measuring Instruments & Calibrators.
• Hydraulic & Pneumatic Pressure Instruments.
• Torque Calibrators.
• High Voltage (HV) Instruments.
• Gas Detectors.

OEM Support Services

• Fluke, Omicron, Baur, MTE & DV Power.
• Hipotronics, Ametek, Time Electronics, Testo & Hioki.
• FLIR, Extech, Norbar, Honeywell & Elcometer.

Repair & OEM Suppor t Services
Repair & OEM Suppor t Services
Repair & OEM Suppor t Services
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Since 2026, Gulf Industrial Services and Contracting (GISC) has been established as a 100% Omani SME, delivering reliable instrumentation, calibration, testing, rental and technical solutions to the Oil & Gas, Power, Education and Medical sectors across Oman and Middle East

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