Company lists · Data refreshed September 2026

Top 25 Ohs companies based in South Africa

Name: Ohs companies based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 453 companies tracked

RevenueBase identified 453 ohs companies headquartered in South Africa as of September 2026 and tracks 3,460 professional contacts across them, including 326 with verified work emails. Cape Town is the largest hub.

This list covers ohs companies 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 21, 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 21, 2026 86% judged on-target in blind review

453Companies

3,460Contacts tracked

326Verified emails

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The 25 largest ohs companies based in South Africa

Ranked by team size

Top 25 of 453 ohs companies based in South Africa, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to ohs companies: 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	Sgb-Cape	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	10001+	383 contacts →
	Indirect evidence “SGB-Cape is the largest industrial services company in Africa.” Source: RevenueBase Database · checked Sep 21, 2026
2	Safetycloud	Indirect evidence	Centurion, South AfricaHQ checked Sep 21, 2026	501-1,000	358 contacts →
	Indirect evidence “Looking to the future: The journey from NOSA to SafetyCloud Initially a free service to industry, NOSA was privatised in 2005, and in 2018, it was bought by the Carlyle Group…” Source: RevenueBase Database · checked Sep 21, 2026
3	Makrosafe Holdings PTY LTD	Indirect evidence	Alberton, South AfricaHQ checked Sep 21, 2026	51-200	69 contacts →
	Indirect evidence “PURPOSE We believe in making sure your loved ones return home safe after work.” Source: RevenueBase Database · checked Sep 21, 2026
4	Wireline Africa	Indirect evidence	Mooi Nooi, South AfricaHQ checked Sep 21, 2026	51-200	52 contacts →
	Indirect evidence “Wireline Africa is an engineering company that focuses on supplying the local and international mining industry with products and services.” Source: RevenueBase Database · checked Sep 21, 2026
5	Coalseam Hydraulics And Mining Supplies PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	51-200	47 contacts →
	Indirect evidence “Established in 1982, Coalseam has grown to become one of the leading suppliers in the Coal Mining industry.Conforming to ISO and SABS standards, we provide top quality components…” Source: RevenueBase Database · checked Sep 21, 2026
6	Geochem	Indirect evidence	Durban, South AfricaHQ checked Sep 21, 2026	51-200	27 contacts →
	Indirect evidence “Our Trade philosophy includes providing quality service to our customers, consistently at competitive pricing.” Source: RevenueBase Database · checked Sep 21, 2026
7	Selepe Projects	Indirect evidence	Pretoria, South AfricaHQ checked Sep 21, 2026	51-200	25 contacts →
	Indirect evidence “Selepe Projects (Pty) Ltd is a Black Woman Owned Contractor, with a CIDB rating of 7 EPPE / EBPE based in Queenswood, Pretoria, who focuses on delivering the best quality of work…” Source: RevenueBase Database · checked Sep 21, 2026
8	Artane Projects PTY LTD	Indirect evidence	Kempton Park, South AfricaHQ checked Sep 21, 2026	51-200	24 contacts →
	Indirect evidence “The company has successfully been in business for more than 45 years.” Source: RevenueBase Database · checked Sep 21, 2026
9	Care NET Consultants PTY LTD	Indirect evidence	Randjespark, South AfricaHQ checked Sep 21, 2026	51-200	23 contacts →
	Indirect evidence “Care Net Consultants exists to enhance workplace health and safety by providing comprehensive occupational health medical surveillance and services.” Source: RevenueBase Database · checked Sep 21, 2026
10	Solrock Holdings PTY LTD	Indirect evidence	Irene, South AfricaHQ checked Sep 21, 2026	51-200	22 contacts →
	Indirect evidence “SOLROCK HOLDINGS (Pty) Ltd is a group of companies who prides itself on being an owner-managed company with a dedicated team who specializes in - MINING AND MINING SERVICES -…” Source: RevenueBase Database · checked Sep 21, 2026
11	Aircheck Approved Inspection Authority	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	19 contacts →
	Indirect evidence “AirCHECK is an independent, unbiased and all-embracing Approved Inspection Authority in terms of the Occupational Health and Safety Act.” Source: RevenueBase Database · checked Sep 21, 2026
12	SHE Group Health, Safety And Environmental Consulting	Indirect evidence	Bloemfontein, South AfricaHQ checked Sep 21, 2026	51-200	19 contacts →
	Indirect evidence “SHE Group is an accredited and professional health, safety and environmental business operating throughout South Africa as well as in other countries on the African continent.” Source: RevenueBase Database · checked Sep 21, 2026
13	Safe Working Practice SA	Indirect evidence	Cape Town, South AfricaHQ checked Sep 21, 2026	51-200	19 contacts →
	Indirect evidence “Safe Working Practice provides you with safe systems of work, safety audits, health and safety consultants, safety inspections, safety documentation, safety advice and health and…” Source: RevenueBase Database · checked Sep 21, 2026
14	Occupational Hygiene Monitoring Services Ohms	Indirect evidence	Melkbosstrand, South AfricaHQ checked Sep 21, 2026	11-50	18 contacts →
	Indirect evidence “OCCUPATIONAL HYGIENE MONITORING SERVICES is a company based out of 5 HUMAN CRESCENT DUYNEFONTEIN, MELKBOSSTRAND, Western Cape, South Africa.” Source: RevenueBase Database · checked Sep 21, 2026
15	Alva Group PTY LTD	Strong evidence	Die Hoewes, South AfricaHQ checked Sep 21, 2026	11-50	16 contacts →
	Strong evidence “ALVA Group is a Health and Safety, Consultancy Company and provide PPE, OHS Training, W@H, Confined spaces solutions, Contractor management, fire Services, Medical screening…” Source: RevenueBase Database · checked Sep 21, 2026
16	Geozone Environmental PTY LTD	Indirect evidence	Northriding, South AfricaHQ checked Sep 21, 2026	11-50	14 contacts →
	Indirect evidence “We are a "one-stop shop" offering solutions to any company or industry in the following: Occupational Hygiene, Training, Safety & Environmental compliance.” Source: RevenueBase Database · checked Sep 21, 2026
17	OHS Compliance Group PTY LTD	Indirect evidence	Randburg, South AfricaHQ checked Sep 21, 2026	11-50	13 contacts →
	Indirect evidence “We offer Health and Safety Training (Online & Classroom based) and Workplace Safety Services Nationwide at affordable rates.” Source: RevenueBase Database · checked Sep 21, 2026
18	OHS Care	Strong evidence	Kempton Park, South AfricaHQ checked Sep 21, 2026	51-200	13 contacts →
	Strong evidence “OHS Care provides customized turnkey occupational health solutions to medium and large employer groups across various industries, thereby ensuring legislative compliance and a…” Source: RevenueBase Database · checked Sep 21, 2026
19	Praxos 373 PTY LTD	Indirect evidence	Durban, South AfricaHQ checked Sep 21, 2026	11-50	12 contacts →
	Indirect evidence “Praxos 373 (Pty) Ltd established in 2005, with the aim of providing professional services in Occupational HSE, as well as Social Participation/Facilitation and Management.” Source: RevenueBase Database · checked Sep 21, 2026
20	Nemai Consulting	Indirect evidence	Randburg, South AfricaHQ checked Sep 21, 2026	11-50	12 contacts →
	Indirect evidence “Nemai Consulting has been in existence since and was built on a vision to help clients manage their most demanding environmental, social and occupational health and safety…” Source: RevenueBase Database · checked Sep 21, 2026
21	Exco Environmental & Occupational Health Services	Indirect evidence	Cape Town, South AfricaHQ checked Sep 21, 2026	1-10	11 contacts →
	Indirect evidence “EXCO Environmental and Occupational Health Services is a SANAS accredited and Department of Labour registered Approved Inspection Authority (AIA) in terms of the Occupational…” Source: RevenueBase Database · checked Sep 21, 2026
22	Jones Consulting	Indirect evidence	Boksburg, South AfricaHQ checked Sep 21, 2026	1-10	11 contacts →
	Indirect evidence “Jones Consulting provides specialised Health, Safety, Environmental, Quality, and Emergency Management solutions to organisations operating in high-risk, highly regulated…” Source: RevenueBase Database · checked Sep 21, 2026
23	Altra Medical Productions	Indirect evidence	Meyerton, South AfricaHQ checked Sep 21, 2026	11-50	10 contacts →
	Indirect evidence “Health and Safety training provider - SHE Representative - Fire Fighter - First Aider - HIRA (Risk Assessor)- Legal Liability - Incident/Accident Investigator - Fall Protection…” Source: RevenueBase Database · checked Sep 21, 2026
24	Oxygen 21	Indirect evidence	Pretoria, South AfricaHQ checked Sep 21, 2026	1-10	9 contacts →
	Indirect evidence “OXYGEN offers leading occupational health and safety solutions for successful project delivery.” Source: RevenueBase Database · checked Sep 21, 2026
25	Risk Training Solutions	Indirect evidence	Cape Town, South AfricaHQ checked Sep 21, 2026	11-50	9 contacts →
	Indirect evidence “Health and Safety Training Provider First Aid Training Fire Training Safety training Risk Assessments Safety files And many more” Source: RevenueBase Database · checked Sep 21, 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: ohs companies. 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 ohs companies.
Partial evidence: Its own public description names part of ohs companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ohs companies. 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 453 ohs companies based in South Africa

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Ohs companies based in South Africa at a glance

As of Sep 21, 2026

9.4%Verified-email coverage

7.6Average contacts per company

1-10Median size (employees)

11.5%Largest-city concentration · Cape Town

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

302

11-50

113

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 453 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 ohs companies, 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 “ohs companies”. 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 ohs companies), 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 ohs companies, 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, 326 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 21, 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.

Ohs companies by metro

Ohs companies in Cape Town52
Ohs companies in Pretoria49
Ohs companies in Johannesburg43

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 ohs companies, 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 ohs companies are there based in South Africa?

RevenueBase identified 453 ohs companies 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?

Sgb-Cape, headquartered in Elandsfontein Johannesburg, tops this list with the largest team on record.

Which city has the most ohs companies?

Cape Town leads with 52 headquartered companies, followed by Pretoria (49) and Johannesburg (43).

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 326 verified decision-maker contacts tracked across these 453 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 21, 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.