Company lists · Data refreshed September 2026

Top 25 Ehs consultancies based in Johannesburg, South Africa

Name: Ehs consultancies based in Johannesburg, South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 197 companies tracked

RevenueBase identified 197 ehs consultancies headquartered in Johannesburg, South Africa as of September 2026 and tracks 3,007 professional contacts across them, including 1,259 with verified work emails. Johannesburg is the largest hub.

This list covers ehs consultancies 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 24, 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 24, 2026 86% judged on-target in blind review

197Companies

3,007Contacts tracked

1,259Verified emails

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The 25 largest ehs consultancies based in Johannesburg, South Africa

Ranked by team size

Top 25 of 197 ehs consultancies based in Johannesburg, South Africa, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to ehs consultancies: 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	Labournet	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	201-500	841 contacts →
	Indirect evidence “Labournet – your strategic partner in simplifying human resource management.” Source: RevenueBase Database · checked Sep 24, 2026
2	CKR Consulting Engineers	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	51-200	254 contacts →
	Indirect evidence “Founded in 1982 with its roots in Johannesburg, South Africa, CKR Consulting Engineers have grown to become one of the leading multidisciplinary engineering firms in Africa, the…” Source: RevenueBase Database · checked Sep 24, 2026
3	Jones & Wagener PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	51-200	228 contacts →
	Indirect evidence “Jones & Wagener is a specialist firm of consulting engineers and scientists based in South Africa.” Source: RevenueBase Database · checked Sep 24, 2026
4	JG Afrika PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	201-500	221 contacts →
	Indirect evidence “JG Afrika, a leading multi-disciplinary engineering and environmental consultancy in South Africa, provides civil and structural engineering and environmental consulting services…” Source: RevenueBase Database · checked Sep 24, 2026
5	Irca Global	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	51-200	165 contacts →
	Indirect evidence “Established in 1993, IRCA Global stands as a prominent global provider of Operational Risk Management solutions, specializing in Safety, Health, Environment, Quality, and…” Source: RevenueBase Database · checked Sep 24, 2026
6	Henry Fagan Consulting Engineers & Project Managers	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	201-500	99 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 24, 2026
7	SDC Consult	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	11-50	61 contacts →
	Indirect evidence “SDC Consult is a division of SDC Group, and empowers South African businesses across all industries by providing comprehensive and tailored business and legal compliance solutions.” Source: RevenueBase Database · checked Sep 24, 2026
8	Skyside	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	11-50	48 contacts →
	Indirect evidence “At Skyside, we’re creating a brighter tomorrow through innovative air emissions and water testing practices.” Source: RevenueBase Database · checked Sep 24, 2026
9	Ibis Consulting NOW SLR	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	51-200	43 contacts →
	Indirect evidence “IBIS Consulting is an emerging market ESG and sustainable finance advisory business that works with clients to unlock value and improve their environmental and social performance.” Source: RevenueBase Database · checked Sep 24, 2026
10	Solid Green	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	11-50	36 contacts →
	Indirect evidence “Solid Green Consulting is a young and energetic company enthusiastic about advancing sustainability in the built environment.” Source: RevenueBase Database · checked Sep 24, 2026
11	Syncsystems South Africa	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 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 24, 2026
12	LTM Energy PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	201-500	26 contacts →
	Indirect evidence “LTM Energy is an Energy Services Company (ESCO) with a unique blend of skills and experience obtained primarily in the energy industry.” Source: RevenueBase Database · checked Sep 24, 2026
13	Rayten Engineering Solutions PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	11-50	25 contacts →
	Indirect evidence “We provide air quality and engineering services to a wide range of industries, government departments, and consulting firms in Southern Africa.” Source: RevenueBase Database · checked Sep 24, 2026
14	Risk Insights PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	11-50	22 contacts →
	Indirect evidence “Risk Insights is a risk management and consultancy boutique company focused on making sustanable world reality.” Source: RevenueBase Database · checked Sep 24, 2026
15	Boleng Engineering Management	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	11-50	22 contacts →
	Indirect evidence “Boleng Engineering Management is an EPCM company focussed on developing innovative solutions for the progressively complex challenges of our modern built environment.” Source: RevenueBase Database · checked Sep 24, 2026
16	Savannah Environmental PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	11-50	21 contacts →
	Indirect evidence “Through undertaking a broad range of environmental studies, Savannah Environmental has gained extensive experience with regards to environmental legislation requirements and…” Source: RevenueBase Database · checked Sep 24, 2026
17	Bara Consulting LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	11-50	21 contacts →
	Indirect evidence “Bara Consulting is a boutique geological, engineering, ESG and mineral processing consultancy owned and operated by experienced industry professionals and offers high quality…” Source: RevenueBase Database · checked Sep 24, 2026
18	Optimult	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	11-50	18 contacts →
	Indirect evidence “Optimult provides Consulting, EPC (Engineering, Procurement, Construction) and EPCM (Engineering, Procurement and Construction Management) services in a comprehensive range of…” Source: RevenueBase Database · checked Sep 24, 2026
19	Alliance Energy	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	1-10	18 contacts →
	Indirect evidence “Advancing energy efficiency.” Source: RevenueBase Database · checked Sep 24, 2026
20	RWP Taemane Consulting Engineers	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	11-50	17 contacts →
	Indirect evidence “Rawlins Wales was established in 1987 with offices in Sandton, Pretoria and Durban.” Source: RevenueBase Database · checked Sep 24, 2026
21	Innovation Expand	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	11-50	15 contacts →
	Indirect evidence “We are a technically-led and solutions-orientated consultancy and we strive to empower you in the rapidly evolving world of electrical engineering.” Source: RevenueBase Database · checked Sep 24, 2026
22	Environmental Impact Management Services PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	11-50	15 contacts →
	Indirect evidence “Environmental Impact Management Services (Pty) Ltd (EIMS) was founded in 1993 and has steadily grown to be a significant player in the environmental management consulting industry…” Source: RevenueBase Database · checked Sep 24, 2026
23	Lightning Protection Concepts	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	1-10	14 contacts →
	Indirect evidence “A consultancy firm, established by true Ceraunophiles boasting with 35+ years of experience in the earthing and lightning protection industry.” Source: RevenueBase Database · checked Sep 24, 2026
24	Nsovo Environmental Consulting	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	11-50	13 contacts →
	Indirect evidence “Our specialist area of focus is the assessment of multifaceted projects, including the establishment of linear developments, bulk infrastructure, power generation and…” Source: RevenueBase Database · checked Sep 24, 2026
25	Beyond Infradev PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 24, 2026	11-50	13 contacts →
	Indirect evidence “Beyond Infradev (Pty) Ltd is a multi-disciplinary engineering and consultancy firm offering turnkey/EPC (Engineering, Procurement & Construction) life-cycle services for…” Source: RevenueBase Database · checked Sep 24, 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: ehs consultancies. 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 ehs consultancies.
Partial evidence: Its own public description names part of ehs consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ehs consultancies. 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 197 ehs consultancies based in Johannesburg, South Africa

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Ehs consultancies based in Johannesburg, South Africa at a glance

As of Sep 24, 2026

41.9%Verified-email coverage

15.3Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Johannesburg

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

115

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole South Africa list rather than for Johannesburg, so it is reported there. Company counts and contact totals on this page are exact for Johannesburg, over 197 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 ehs consultancies, 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 “ehs consultancies”. 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 ehs consultancies), 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 ehs consultancies, 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, 1,259 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 24, 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.

Ehs consultancies by metro in South Africa

Ehs consultancies in Johannesburg197
Ehs consultancies in Pretoria157
Ehs consultancies in Cape Town143
Ehs consultancies in Durban47
Ehs consultancies in Centurion41
Ehs consultancies in City Of Tshwane36
Ehs consultancies in Midrand29
Ehs consultancies in Sandton26

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 ehs consultancies, 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 ehs consultancies are there based in Johannesburg, South Africa?

RevenueBase identified 197 ehs consultancies 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?

Labournet, headquartered in Johannesburg, tops this list with the largest team on record.

Which city has the most ehs consultancies?

Johannesburg leads with 197 headquartered companies, followed by Pretoria (157) and Cape Town (143).

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 1,259 verified decision-maker contacts tracked across these 197 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 24, 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.