About Us

Allied Engineering International Company (AEI), based in Saudi Arabia, is a diversified contracting and services company dedicated to supporting the nation’s development and industrial growth.

Electrical & Instrumentation Work

Solutions for High/Medium/Low Voltages, Control & Instrumentation Cabling, Grounding & Functional Testing

Electrical & Instrumentation AEI
Allied Engineering International Company (AEI)

Grassroots & Live Operational Plant E&I Expertise

We have expertise working with grassroots and live/operational plants in refineries, petrochemical, power, mining, manufacturing, and other industries, offering solutions for high/medium/low voltages as well as control and instrumentation cabling installations.

Our teams handle grounding, termination, calibration, loop checking, and functional tests for various electrical and instrumentation equipment, ensuring safe, seamless integration into modern industrial facilities.

Comprehensive Systems

Our E&I Capabilities

HV, MV & LV Power Systems

Switchgear, power transformers, motor control centers (MCC), variable frequency drives (VFD), and plant power distribution networks.

Control & Instrumentation Cabling

Cable tray fabrication, conduit routing, fiber optic and multi-pair signal cable pulling, glanding, and marshalling cabinet termination.

Grounding & Lightning Protection

Exothermic CAD welding, ground grid loops, earthing pits, lightning masts, static bonding, and step/touch potential testing.

Calibration & Loop Checking

Primary sensor calibration, pressure and flow transmitter testing, control valve stroke tests, and end-to-end DCS/PLC loop checks.

Hazardous Area Installation

ATEX/IECEx explosion-proof lighting, junction boxes, flameproof cable glands, and certified hazardous environment equipment setup.

Functional Pre-Commissioning

Hi-Pot testing, megger insulation resistance testing, relay protection coordination, and complete plant pre-commissioning handover.

We're Just a Message Away

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