Company lists · Data refreshed November 2026

Top 23 Grid modernization contractors based in South Africa

RevenueBase identified 61 company matches for grid modernization contractors associated with South Africa as of November 2026 and tracks 1,216 professional contacts across them, including 413 with verified work emails. Johannesburg is the largest hub.

This list covers company matches for grid modernization contractors associated with South Africa, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
61Companies
1,216Contacts tracked
413Verified emails
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The 23 largest grid modernization contractors based in South Africa

Ranked by team size
Top 23 of 61 company matches for grid modernization contractors based in South Africa, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 20261,001-5,000280 contacts →

Exact match

“The CONCO Group is Africa’s largest power infrastructure service provider with three decades of Africa-wide experience in transmission, distribution and power infrastructure…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchRoodepoort, South AfricaHQ recorded Nov 6, 2026501-1,000179 contacts →

Exact match

“Established in 1982, Tractionel Enterprise is a 100% Black-Owned Level 1 Electrical Construction Company with an outstanding track record in the design, supply, construction and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 202651-200120 contacts →

Exact match

“Trans-Africa Projects, specialist in High Voltage Services was established in 1995 as a joint venture between Fluor and Eskom to commercially apply resources and expertise in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchPretoria, South AfricaHQ recorded Nov 6, 202651-20077 contacts →

Exact match

“Powertech System Integrators (PTSI) is a systems engineering business which operates predominantly in the power and energy sectors with customers that include power utilities and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchCape Town, South AfricaHQ recorded Nov 6, 202651-20058 contacts →

Exact match

“Electrical and Electronic Engineering”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCape Town, South AfricaHQ recorded Nov 6, 2026201-50055 contacts →

Exact match

“Adenco Construction (PTY) Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMidrand, South AfricaHQ recorded Nov 6, 202611-5052 contacts →

Exact match

“Enerweb offers a unique blend of engineering, business, and IT capability to the electricity sector, connecting buyers and sellers of electricity.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 202651-20032 contacts →

Exact match

“High Voltage Technology SA (Pty) Ltd (“HVT”) provides “Can do” solutions for tough problems in the electricity transmission & distribution industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLaser Park, South AfricaHQ recorded Nov 6, 202651-20031 contacts →

Exact match

“We are RWW!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchEdenvale, South AfricaHQ recorded Nov 6, 202611-5030 contacts →

Exact match

“Founded in 2004 by a team of German engineers and Chinese investors, TGOOD is the world leader in Pre-fabricated E-House solutions, power transmission & distribution equipment…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchNelspruit, South AfricaHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Mandlakazi Electrical Technologies (PTY) Ltd otherwise known as MET was established in 1998.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchPretoria, South AfricaHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“TSHWALEC POWER PROJECTS is a Electrical High Voltage infrastructure, reticulation & network distribution services provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 202651-20015 contacts →

Exact match

“EOH Power Systems (Pty) Ltd provides application engineering solutions that are geared towards the optimisation of Africa's transmission, distribution and industrial power systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchCenturion, South AfricaHQ recorded Nov 6, 202651-20014 contacts →

Exact match

“OMPETHA POWER PROJECTS is a an Electrical Construction company Specializes in MV/LV/HV infrastructure from 11kV up to 765kV CIDB Grade 8EP, CSD Compliant B-BBEE Level 1 Eskom…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Our services- Full Self-Build and Own-Build Services- Network planning and master plans- System modelling and load flow simulations, network optimization, load forecasting…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchEkurhuleni, South AfricaHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Altek Solutions Is A Multi-Disciplinary Engineering Company That Is The Leading Provider Of End-To-End Engineering Intelligence And Data Management Solutions For Electrical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCenturion, South AfricaHQ recorded Nov 6, 20261-107 contacts →

Exact match

“ADM Engineers is a multidisciplinary engineering company, focused on the energy and power sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchGermiston, South AfricaHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Established in 2004, DMX Electrical initially specialised in providing electrical services on distribution transformers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 202611-503 contacts →

Exact match

“Lineit Components was established in South Africa in 2006 with the primary focus of serving the industrial medium and high voltage electrical markets in Southern Africa and abroad.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchThabazimbi, South AfricaHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Electrical Engineers that provide the following services: o Project Management, Engineering and Design o MV and LV Electrical Solutions o Plant Audits o Retrofits o Fault Level…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchCaledon, South AfricaHQ recorded Nov 6, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchPretoria, South AfricaHQ recorded Nov 6, 20261-102 contacts →

Exact match

“ZETDC Grid Connection Designs for Substations and Overhead Lines Eskom Grid Connections - Development, Design, Turnkey Grid Connections for Renewable Energy Independent Power…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchEersterus, South AfricaHQ recorded Nov 6, 20261-102 contacts →

Exact match

“About Rivera Consulting Rivera Consulting and Projects (Pty) Ltd is completely dedicated to client satisfaction.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 23 of 61 grid modernization contractors based in South Africa

See the full list, filter by size, metro and specialty, and access 413 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Grid modernization contractors based in South Africa at a glance

As of Nov 6, 2026
34.0%Verified-email coverage
19.9Average contacts per company
11-50Median size (employees)
18.0%Largest-city concentration · Johannesburg
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
18
11-50
26
51-200
13
201-500
2
501-1,000
1
1,001-5,000
1

Email recency for this list is measured worldwide rather than for South Africa, so it is reported there. Company counts and contact totals on this page are exact for South Africa, over 61 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with South Africa whose business descriptions match “grid modernization contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 413 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “grid modernization contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many grid modernization contractors are there based in South Africa?

RevenueBase identified 61 company matches for grid modernization contractors associated with South Africa as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Consolidated Power Project PTY Ltd. In Business Rescue tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most grid modernization contractors?

Johannesburg leads with 11 company records, followed by Cape Town (6) and Ekurhuleni (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 413 professional contacts with verified work emails tracked across these 61 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.