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High Voltage Technology SA (Pty) Ltd (“HVT”) provides “Can do” solutions for tough problems in the electricity transmission & distribution industry. HVT’s vision is to become a significant Southern African group in the high voltage engineering field. HVT is the leading independent BEE service provider to the high voltage electrical power market in Southern Africa offering: • Reactive Power Compensation: Leading reactive power company in SA with over 600 MV and HV power factor correction and harmonic filter projects in the mining, utility and industrial markets from 3,3kV to 400kV o Capacitor banks and harmonic filter banks for power factor correction o Specialised reactive power applications o Turnkey projects o System studies o Spares, repairs and maintenance • Substation Site Services: Largest installation contractor of high voltage substation equipment, trained and accredited up to 765kV o Turnkey substation construction and rehabilitation o Tubular busbar systems (aluminium busbars, post insulators, clamps) o Cabling and stringing projects o Substation equipment installation o Maintenance contracting o HV Transformer testing • Substation Equipment: Supplier of High voltage equipment and logistics to the utility & HV project companies as an agent of major international OEMs o Instrument transformers (CTs, VTs, CVTs) o Insulators o Clamps and line fittings o Outdoor circuit breakers o Disconnectors & earth switches o Power transformers o Generation transformers o Distribution transformers o Capacitors o Air core reactors HVT is proud of its continuous improvement: • Excellent empowerment credentials with BBBEE level 3 • Eight fully equipped and trained crews supported by strong technical, design and project management abilities for a CIDB rating of EP7 • Industry leading safety, health, environment and quality management system and ISO9001:2008 Certification

High Voltage Technology SA Questions

The High Voltage Technology SA annual revenue was $9.5 million in 2026.

Heinrich Pienaar is the Technical Director and Projects Manager of High Voltage Technology SA.

23 people are employed at High Voltage Technology SA.

High Voltage Technology SA is based in Midrand, Gauteng.

The NAICS codes for High Voltage Technology SA are [335311, 3353, 335, 33, 33531].

The SIC codes for High Voltage Technology SA are [361, 36].

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