Company lists · Data refreshed September 2026

Top 25 Transmission line consulting firms based in South Africa

Name: Transmission line consulting firms based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 230 companies tracked

RevenueBase identified 230 transmission line consulting firms headquartered in South Africa as of September 2026 and tracks 2,559 professional contacts across them, including 748 with verified work emails. Johannesburg is the largest hub.

This list covers transmission line consulting firms headquartered in South Africa, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

230Companies

2,559Contacts tracked

748Verified emails

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The 25 largest transmission line consulting firms based in South Africa

Ranked by team size

Top 25 of 230 transmission line consulting firms based in South Africa, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to transmission line consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Tractionel Enterprise	Indirect evidence	Roodepoort, South AfricaHQ checked Sep 29, 2026	501-1,000	163 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
2	Trans-Africa Projects	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 29, 2026	51-200	103 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
3	Sutherland	Partial evidence	Cape Town, South AfricaHQ checked Sep 29, 2026	51-200	102 contacts →
	Partial evidence “Sutherland is a multi-disciplinary consulting engineering company with offices in Cape Town, Johannesburg, Durban, and Nairobi, Multidisciplinary sub-disciplines include…” Source: RevenueBase Database · checked Sep 29, 2026
4	V3 Consulting Engineers PTY LTD	Partial evidence	Pretoria, South AfricaHQ checked Sep 29, 2026	201-500	85 contacts →
	Partial evidence “As a V3 Consulting Engineers’ family, we pride ourselves in providing professional services to our wide client base.” Source: RevenueBase Database · checked Sep 29, 2026
5	Semane Engineering Solutions PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 29, 2026	501-1,000	71 contacts →
	Partial evidence “Semane Engineering Solutions (Pty) Ltd is an independent South African multi-disciplinary consulting company that provides project management and engineering solutions in…” Source: RevenueBase Database · checked Sep 29, 2026
6	AM Consulting Engineers PTY LTD	Partial evidence	Midrand, South AfricaHQ checked Sep 29, 2026	201-500	56 contacts →
	Partial evidence “AM Consulting Engineers (Pty) Ltd (AMCE) provides professional engineering and consulting services to the public and private infrastructure sector.” Source: RevenueBase Database · checked Sep 29, 2026
7	Adenco Construction PTY LTD	Indirect evidence	Cape Town, South AfricaHQ checked Sep 29, 2026	201-500	45 contacts →
	Indirect evidence “Adenco Construction (PTY) Ltd.” Source: RevenueBase Database · checked Sep 29, 2026
8	Inexma Electrical	Indirect evidence	Stellenbosch, South AfricaHQ checked Sep 29, 2026	51-200	42 contacts →
	Indirect evidence “Inexma Electrical is a Electrical construction company based in the Western Cape, South Africa” Source: RevenueBase Database · checked Sep 29, 2026
9	Beal Group Of Companies	Partial evidence	Pretoria, South AfricaHQ checked Sep 29, 2026	51-200	41 contacts →
	Partial evidence “The BEAL Group of Companies is an international group and comprises of BEAL Consulting Engineering & Project Management (SA), BEAL Africa, BEAL Monitoring, BEAL Electrical, BEAL…” Source: RevenueBase Database · checked Sep 29, 2026
10	LSL Consulting	Partial evidence	Bryanston, South AfricaHQ checked Sep 29, 2026	51-200	36 contacts →
	Partial evidence “LSL Consulting (Pty) Ltd is a specialist Consulting Engineers and Project Manager company in the materials handling, process, steel plants, synfuel and power generating industries.” Source: RevenueBase Database · checked Sep 29, 2026
11	Syncsystems South Africa	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 29, 2026	11-50	32 contacts →
	Indirect evidence “SyncSystems is owned by professional engineers with broad industrial experience, including mining, petrochem, biotech and water treatment.” Source: RevenueBase Database · checked Sep 29, 2026
12	Kitso Botlhale Consulting Engineers	Partial evidence	Midrand, South AfricaHQ checked Sep 29, 2026	11-50	29 contacts →
	Partial evidence “KITSO BOTLHALE CONSULTING ENGINEERS is a company based out of the International Business Gateway, C/o Pioneer and Elizabeth Road, Midridge Park Midrand” Source: RevenueBase Database · checked Sep 29, 2026
13	Sotiralis Consulting Engineers	Partial evidence	Faerie Glen, South AfricaHQ checked Sep 29, 2026	11-50	28 contacts →
	Partial evidence “About us: Sotiralis Consulting Engineers (Pty) Ltd was established in 2007 and is the successor of Sotiralis Consulting (Pty) Ltd (trading as Sotiralis & Associates since 1985).” Source: RevenueBase Database · checked Sep 29, 2026
14	RWW Engineering PTY LTD	Indirect evidence	Laser Park, South AfricaHQ checked Sep 29, 2026	51-200	28 contacts →
	Indirect evidence “We are RWW!” Source: RevenueBase Database · checked Sep 29, 2026
15	Onezero Consulting	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 29, 2026	11-50	26 contacts →
	Indirect evidence “Since our inception in 2010, we coined the term Greenovative and have aimed to be pioneers in the electrical and electronic building.” Source: RevenueBase Database · checked Sep 29, 2026
16	Plantech PTY LTD	Partial evidence	Pretoria, South AfricaHQ checked Sep 29, 2026	11-50	25 contacts →
	Partial evidence “Plantech (Pty) Ltd is a consulting engineering firm established in 1982 by Hein Schuld, James Theron and Peet Olivier.” Source: RevenueBase Database · checked Sep 29, 2026
17	TTS Support Services	Partial evidence	Pretoria, South AfricaHQ checked Sep 29, 2026	51-200	24 contacts →
	Partial evidence “In 2013 TTS Consulting and Design derived out of the skill-set of several professionals.” Source: RevenueBase Database · checked Sep 29, 2026
18	A19 Consulting Engineers	Indirect evidence	Cape Town, South AfricaHQ checked Sep 29, 2026	11-50	23 contacts →
	Indirect evidence “Over the past 20+ years we have successfully delivered services to clients in a wide variety of residential, commercial, and industrial projects with scopes ranging from small to…” Source: RevenueBase Database · checked Sep 29, 2026
19	Ipes Consulting Engineers	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 29, 2026	11-50	21 contacts →
	Indirect evidence “Instrumented Process and Electrical Systems (IPES) was established as an independent engineering design house in 1988 in Johannesburg, South Africa.” Source: RevenueBase Database · checked Sep 29, 2026
20	Dihlase Consulting Engineers	Partial evidence	Bloemfontein, South AfricaHQ checked Sep 29, 2026	11-50	21 contacts →
	Partial evidence “Dihlase Consulting Engineers is a company based out of South Africa.” Source: RevenueBase Database · checked Sep 29, 2026
21	Rasnco Consulting Engineers	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 29, 2026	201-500	20 contacts →
	Indirect evidence “We at Rasnco Investments, are a vibrant and innovative company wholly owned by black Professionals, which was established at the beginning of 2017.” Source: RevenueBase Database · checked Sep 29, 2026
22	Lyon And Partners	Partial evidence	Sylviavale Vanderbijlpark, South AfricaHQ checked Sep 29, 2026	51-200	19 contacts →
	Partial evidence “Lyon and Partners is a proudly South African Engineering, Consulting, and Project Management Company, with deep roots in the Power Systems and Electricity Supply Industry.” Source: RevenueBase Database · checked Sep 29, 2026
23	Pienaar & Erwee Engineers PTY LTD	Indirect evidence	Pretoria, South AfricaHQ checked Sep 29, 2026	11-50	19 contacts →
	Indirect evidence “The firm PIENAAR & ERWEE was established on 1 April 1981 by Johann Erwee and Charl Pienaar in Sunnyside Pretoria.” Source: RevenueBase Database · checked Sep 29, 2026
24	EIC Projects PTY LTD	Partial evidence	Wilgespruit, South AfricaHQ checked Sep 29, 2026	11-50	18 contacts →
	Partial evidence “EIC Projects is a Johannesburg based engineering, design and consulting company focusing on electrical and instrumentation design and engineering solutions.” Source: RevenueBase Database · checked Sep 29, 2026
25	Nadeson Consulting Services	Partial evidence	Cape Town, South AfricaHQ checked Sep 29, 2026	11-50	18 contacts →
	Partial evidence “Nadeson Consulting Services is a multi-disciplinary and advisory engineering consultancy with its headquarters in Cape Town, South Africa.” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: transmission line consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names transmission line consulting firms.
Partial evidence: Its own public description names part of transmission line consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name transmission line consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 230 transmission line consulting firms based in South Africa

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Transmission line consulting firms based in South Africa at a glance

As of Sep 29, 2026

29.2%Verified-email coverage

11.1Average contacts per company

11-50Median size (employees)

14.8%Largest-city concentration · Johannesburg

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

101

11-50

51-200

201-500

501-1,000

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 230 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among transmission line consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in South Africa whose own description of what they do matches “transmission line consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names transmission line consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among transmission line consulting firms, and records with no verified work email. Companies headquartered outside South Africa are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 748 across the full list. 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 September 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Transmission line consulting firms by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names transmission line consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many transmission line consulting firms are there based in South Africa?

RevenueBase identified 230 transmission line consulting firms headquartered in South Africa as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Tractionel Enterprise, headquartered in Roodepoort, tops this list with the largest team on record.

Which city has the most transmission line consulting firms?

Johannesburg leads with 34 headquartered companies, followed by Pretoria (26) and Cape Town (19).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 748 verified decision-maker contacts tracked across these 230 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 Smart Search, 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.