Company lists · Data refreshed September 2026

Top 25 Utility engineering consulting firms based in Johannesburg, South Africa

Name: Utility engineering consulting firms based in Johannesburg, South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 75 companies tracked

RevenueBase identified 75 utility engineering consulting firms headquartered in Johannesburg, South Africa as of September 2026 and tracks 1,401 professional contacts across them, including 530 with verified work emails. Johannesburg is the largest hub.

This list covers utility engineering consulting firms headquartered in Johannesburg, 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 6, 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 6, 2026 86% judged on-target in blind review

75Companies

1,401Contacts tracked

530Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest utility engineering consulting firms based in Johannesburg, South Africa

Ranked by team size

Top 25 of 75 utility engineering consulting firms based in Johannesburg, South Africa, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to utility engineering 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	Jones & Wagener PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	51-200	228 contacts →
	“Jones & Wagener is a specialist firm of consulting engineers and scientists based in South Africa.” Source: company website · checked Sep 6, 2026
2	JG Afrika PTY LTD	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	201-500	221 contacts →
	“JG Afrika, a leading multi-disciplinary engineering and environmental consultancy in South Africa, provides civil and structural engineering and environmental consulting services…” Source: company website · checked Sep 6, 2026
3	Henry Fagan Consulting Engineers & Project Managers	Partial evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	201-500	99 contacts →
	“At Henry Fagan Consulting Engineers & Project Managers, we are a 100% black-owned, design-focused firm with over 40 years of experience delivering innovative, sustainable, and…” Source: company website · checked Sep 6, 2026
4	Mamadi And Company SA PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	35 contacts →
	“Mamadi and Company SA Provides End to End Solutions within Engineering and Environmental, Infrastructure Development, Air Quality management services within the private and Public…” Source: company website · checked Sep 6, 2026
5	Syncsystems South Africa	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	32 contacts →
	“SyncSystems is owned by professional engineers with broad industrial experience, including mining, petrochem, biotech and water treatment.” Source: company website · checked Sep 6, 2026
6	L&s Consulting PTY LTD	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	51-200	26 contacts →
	“L&S Consulting (Pty) Ltd is involved in Structural and Civil Consulting Engineering, mainly for the private sector for industrial, retail and office developments.” Source: company website · checked Sep 6, 2026
7	Gpwg Engineering	Partial evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	51-200	22 contacts →
	“GPWG Engineering is a multi-disciplinary Engineering Company with interests in Contracting activities (Civil, Electrical, Instrumentation, Solar and Mechanical) in the Mining…” Source: company website · checked Sep 6, 2026
8	Ipes Consulting Engineers	Partial evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	21 contacts →
	“Instrumented Process and Electrical Systems (IPES) was established as an independent engineering design house in 1988 in Johannesburg, South Africa.” Source: company website · checked Sep 6, 2026
9	Rasnco Consulting Engineers	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	201-500	20 contacts →
	“We at Rasnco Investments, are a vibrant and innovative company wholly owned by black Professionals, which was established at the beginning of 2017.” Source: company website · checked Sep 6, 2026
10	Optimult	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	18 contacts →
	“Optimult provides Consulting, EPC (Engineering, Procurement, Construction) and EPCM (Engineering, Procurement and Construction Management) services in a comprehensive range of…” Source: company website · checked Sep 6, 2026
11	ADA Consulting Engineers	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	18 contacts →
	“ADA Consulting Engineers offers professional consulting engineering services to clients in the development of industrial, commercial and public projects in the civil and…” Source: company website · checked Sep 6, 2026
12	RWP Taemane Consulting Engineers	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	17 contacts →
	“Rawlins Wales was established in 1987 with offices in Sandton, Pretoria and Durban.” Source: company website · checked Sep 6, 2026
13	Gridbow	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	16 contacts →
	“Gridbow is an Award Winning Electrical Infrastructure, Civil Engineering, Consulting, Maintenance and General Services Contracting Company.” Source: company website · checked Sep 6, 2026
14	Innovation Expand	Partial evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	15 contacts →
	“We are a technically-led and solutions-orientated consultancy and we strive to empower you in the rapidly evolving world of electrical engineering.” Source: company website · checked Sep 6, 2026
15	Beyond Infradev PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	13 contacts →
	“Beyond Infradev (Pty) Ltd is a multi-disciplinary engineering and consultancy firm offering turnkey/EPC (Engineering, Procurement & Construction) life-cycle services for…” Source: company website · checked Sep 6, 2026
16	Projects And Industrial Engineering	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	11 contacts →
	“Projects & Industrial Engineering is an ISO 9001:2008 accredited professional South African multidisciplinary consulting engineering, design and project Management Company.” Source: company website · checked Sep 6, 2026
17	Rhythm Power Solutions PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	10 contacts →
	“Our services- Full Self-Build and Own-Build Services- Network planning and master plans- System modelling and load flow simulations, network optimization, load forecasting…” Source: company website · checked Sep 6, 2026
18	Sydwalt PTY LTD	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	10 contacts →
	“SYDWALT (Pty) Ltd is an independent engineering Consulting firm, offering a broad range of professional services.” Source: company website · checked Sep 6, 2026
19	Shuma Africa	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	10 contacts →
	“Shuma Africa Projects is a South African Consulting Engineering firm.” Source: company website · checked Sep 6, 2026
20	Carlisle & Associates	Partial evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	1-10	8 contacts →
	“Carlisle & Associates is a civil and structural engineering consultancy based in Johannesburg, South Africa.” Source: company website · checked Sep 6, 2026
21	Africa-One Consulting	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	8 contacts →
	“Africa-One Consulting and Research Pty Ltd trading as Africa-One Consulting was formed with initial focus on electrical engineering technology consulting with a vision to later…” Source: company website · checked Sep 6, 2026
22	Watson Consulting Engineers PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	7 contacts →
	“Engineering Excellence Our cutting-edge projects are carried out by a team of talented engineers who want to transform our communities.” Source: company website · checked Sep 6, 2026
23	Asande Projects Consulting And Engineering PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	51-200	7 contacts →
	Source: company website · checked Sep 6, 2026
24	PHB Engineers	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	6 contacts →
	“PHB Engineers is a civil engineering consulting company based out of South Africa.” Source: company website · checked Sep 6, 2026
25	Synlec PTY LTD	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	1-10	6 contacts →
	“Electrical engineering consulting.” Source: company website · checked Sep 6, 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: utility engineering 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 utility engineering consulting firms.
Partial evidence: Its own public description names part of utility engineering consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name utility engineering 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 75 utility engineering consulting firms based in Johannesburg, South Africa

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 530 reachable decision-makers.

Free signup · no credit card

View the full list →

Utility engineering consulting firms based in Johannesburg, South Africa at a glance

As of Sep 6, 2026

37.8%Verified-email coverage

18.7Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Johannesburg

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole South Africa list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Johannesburg, over 75 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 utility engineering 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 Johannesburg, South Africa whose own description of what they do matches “utility engineering 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 utility engineering 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 utility engineering consulting firms, and records with no verified work email. Companies headquartered outside Johannesburg 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, 530 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 6, 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.

Utility engineering consulting firms by metro in South Africa

Utility engineering consulting firms in Johannesburg75
Utility engineering consulting firms in Pretoria50
Utility engineering consulting firms in Cape Town33
Utility engineering consulting firms in Durban25

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 utility engineering 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 utility engineering consulting firms are there based in Johannesburg, South Africa?

RevenueBase identified 75 utility engineering consulting firms headquartered in Johannesburg, 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?

Jones & Wagener PTY LTD, headquartered in Johannesburg, tops this list with the largest team on record.

Which city has the most utility engineering consulting firms?

Johannesburg leads with 75 headquartered companies, followed by Pretoria (50) and Cape Town (33).

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 530 verified decision-maker contacts tracked across these 75 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 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 75 utility engineering consulting firms based in Johannesburg, South Africa. Start with a free account, no credit card.

Download this list →

Related lists

Utility engineering consulting firms by geography

Browse the directory

Browse: Companies home · Utility engineering consulting firms in South Africa · All South Africa lists · All Utility engineering consulting firms lists · New lists

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.