Company lists · Data refreshed September 2026

Top 25 Environmental monitoring companies based in South Africa

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 81 companies tracked

RevenueBase identified 81 environmental monitoring companies headquartered in South Africa as of September 2026 and tracks 855 professional contacts across them, including 274 with verified work emails. Johannesburg is the largest hub.

This list covers environmental monitoring 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 19, 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 19, 2026 86% judged on-target in blind review

81Companies

855Contacts tracked

274Verified emails

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The 25 largest environmental monitoring companies based in South Africa

Ranked by team size

Top 25 of 81 environmental monitoring companies based in South Africa, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to environmental monitoring 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	Sperosens	Strong evidence	Centurion, South AfricaHQ checked Sep 19, 2026	201-500	250 contacts →
	Strong evidence “Sperosens provides Environmental Monitoring and Fire Protection solutions to the African mining industry and has done so with an impeccable track record for 30 years.” Source: RevenueBase Database · checked Sep 19, 2026
2	Aquatico Scientific	Strong evidence	Pretoria, South AfricaHQ checked Sep 19, 2026	11-50	71 contacts →
	Strong evidence “Aquatico is a water testing laboratory and environmental monitoring company established in 1996.” Source: RevenueBase Database · checked Sep 19, 2026
3	AMS Haden	Strong evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	51-200	49 contacts →
	Strong evidence “The core business of the company is the Importation and Distribution of Instrumentation for Environmental Monitoring and Control, Mine Ventilation, Occupational Hygiene and…” Source: RevenueBase Database · checked Sep 19, 2026
4	Skyside	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 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 19, 2026
5	Apex Environmental CC	Indirect evidence	Durban, South AfricaHQ checked Sep 19, 2026	11-50	35 contacts →
	Indirect evidence “Exposure Specialists.” Source: RevenueBase Database · checked Sep 19, 2026
6	Labco Southern Africa PTY LTD	Partial evidence	Port Elizabeth, South AfricaHQ checked Sep 19, 2026	201-500	32 contacts →
	Partial evidence “Labco provides laboratory testing services in the environmental and civil engineering industries.” Source: RevenueBase Database · checked Sep 19, 2026
7	Rayten Engineering Solutions PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 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 19, 2026
8	Levego	Partial evidence	Modderfontein, South AfricaHQ checked Sep 19, 2026	11-50	23 contacts →
	Partial evidence “Levego specialise in the consulting and provision of stationary source, air quality and process off-gas measurements and supply of specialised source monitoring equipment.” Source: RevenueBase Database · checked Sep 19, 2026
9	JMA Consulting	Partial evidence	Delmas, South AfricaHQ checked Sep 19, 2026	11-50	21 contacts →
	Partial evidence “INTRODUCTION JMA Consulting (Pty) Ltd is an environmental consulting company which comprises of highly trained professionals, each of whom are registered with the South African…” Source: RevenueBase Database · checked Sep 19, 2026
10	Exco Environmental & Occupational Health Services	Partial evidence	Cape Town, South AfricaHQ checked Sep 19, 2026	1-10	11 contacts →
	Partial 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 19, 2026
11	C&m Consulting Engineers	Partial evidence	Pretoria, South AfricaHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “C&M Consulting Engineers have been servicing the air quality monitoring needs of South Africa for more than 30 years.” Source: RevenueBase Database · checked Sep 19, 2026
12	Euca Technologies PTY LTD	Strong evidence	Parkhaven, South AfricaHQ checked Sep 19, 2026	1-10	10 contacts →
	Strong evidence “EUCAtech is by association with world-leading brands such as Onset, Elpro & Studios, a leader in distributing environmental monitoring hardware and software across South Africa…” Source: RevenueBase Database · checked Sep 19, 2026
13	Sillito Environmental Consulting PTY LTD	Strong evidence	Cape Town, South AfricaHQ checked Sep 19, 2026	11-50	10 contacts →
	Strong evidence “Sillito Environmental Consulting provides expertise in the areas of environmental authorisation, licencing, monitoring and auditing, contamination assessment, development of…” Source: RevenueBase Database · checked Sep 19, 2026
14	KCM Environmental Services PTY LTD	Strong evidence	Durban, South AfricaHQ checked Sep 19, 2026	1-10	10 contacts →
	Strong evidence “KCM Environmental Services is a private environmental consultancy that performs compliance monitoring to assess whether organisations operate within environmental regulations.” Source: RevenueBase Database · checked Sep 19, 2026
15	Letsolo Water And Environmental Services CC	Partial evidence	Pretoria, South AfricaHQ checked Sep 19, 2026	1-10	9 contacts →
	Partial evidence “Letsolo Water and Environmental Services is a proudly South African company dedicated to delivering sustainable, compliant, and innovative solutions across the water and…” Source: RevenueBase Database · checked Sep 19, 2026
16	Enviroworks	Strong evidence	Bloemfontein, South AfricaHQ checked Sep 19, 2026	1-10	9 contacts →
	Strong evidence “Enviroworks provides environmental management services in the fields of impact assessments, project management, planning, monitoring and auditing, mining, conservation…” Source: RevenueBase Database · checked Sep 19, 2026
17	Legacy Environmental Management Consulting	Partial evidence	Tygerwaterfront, South AfricaHQ checked Sep 19, 2026	1-10	5 contacts →
	Partial evidence “Legacy EMC is a turnkey environmental management consultancy which serves industrial, commercial, private clients, including Government Departments, Local Municipalities and…” Source: RevenueBase Database · checked Sep 19, 2026
18	Zanokuhle Environmental Services	Indirect evidence	Durban, South AfricaHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
19	VAN Walt SA PTY LTD	Strong evidence	Stellenbosch, South AfricaHQ checked Sep 19, 2026	1-10	4 contacts →
	Strong evidence “The Van Walt Group designs, installs, supplies & rents equipment for environmental research and monitoring in the UK, Ireland, Spain, New Zealand and South Africa.” Source: RevenueBase Database · checked Sep 19, 2026
20	SKC Safety, Health & Environment SA PTY LTD	Indirect evidence	Boksburg, South AfricaHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “We are well known for our quality product range and support throughout the industry with regards to Air Sampling Technology.” Source: RevenueBase Database · checked Sep 19, 2026
21	ECO Impact Legal Consulting PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 19, 2026	11-50	4 contacts →
	Partial evidence “Who We Are Lawyers, natural scientists, environmental assessment practitioners, auditors, environmental control officers and data base administrators.” Source: RevenueBase Database · checked Sep 19, 2026
22	Lethabo AIR Quality Specialists PTY LTD	Indirect evidence	Jeffrey's Bay, South AfricaHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Lethabo Air Quality Specialists is a consulting service that provides specialist air pollution-related services to organizations in the industry and government.” Source: RevenueBase Database · checked Sep 19, 2026
23	Enviromap	Strong evidence	Durban, South AfricaHQ checked Sep 19, 2026	1-10	2 contacts →
	Strong evidence “Enviromap operates in the marine and coastal environmental monitoring sector.” Source: RevenueBase Database · checked Sep 19, 2026
24	Exco Stack Monitoring	Strong evidence	Cape Town, South AfricaHQ checked Sep 19, 2026	1-10	2 contacts →
	Strong evidence “EXCO Stack Monitoring provides quality stack emission monitoring and other environmental services to ensure your business operations continue without regulatory interruption.” Source: RevenueBase Database · checked Sep 19, 2026
25	Ehrcon	Partial evidence	Pretoria, South AfricaHQ checked Sep 19, 2026	1-10	1 contacts →
	Partial evidence “In a dynamic business environment, keeping up with numerous industry aspects can be quite challenging!” Source: RevenueBase Database · checked Sep 19, 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: environmental monitoring 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 environmental monitoring companies.
Partial evidence: Its own public description names part of environmental monitoring companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental monitoring 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 81 environmental monitoring companies based in South Africa

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Environmental monitoring companies based in South Africa at a glance

As of Sep 19, 2026

32.0%Verified-email coverage

10.6Average contacts per company

1-10Median size (employees)

18.5%Largest-city concentration · Johannesburg

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

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 81 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 environmental monitoring 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 “environmental monitoring 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 environmental monitoring 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 environmental monitoring 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, 274 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 19, 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.

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 environmental monitoring 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 environmental monitoring companies are there based in South Africa?

RevenueBase identified 81 environmental monitoring 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?

Sperosens, headquartered in Centurion, tops this list with the largest team on record.

Which city has the most environmental monitoring companies?

Johannesburg leads with 15 headquartered companies, followed by Pretoria (8) and Cape Town (6).

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 274 verified decision-maker contacts tracked across these 81 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 19, 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.