Company lists · Data refreshed September 2026

Top 25 Contaminant testing services based in South Africa

Name: Contaminant testing services 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 71 companies tracked

RevenueBase identified 71 contaminant testing services headquartered in South Africa as of September 2026 and tracks 1,457 professional contacts across them, including 332 with verified work emails. Johannesburg is the largest hub.

This list covers contaminant testing services 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

71Companies

1,457Contacts tracked

332Verified emails

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The 25 largest contaminant testing services based in South Africa

Ranked by team size

Top 25 of 71 contaminant testing services 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 contaminant testing services: 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	Assurecloud	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	51-200	234 contacts →
	Indirect evidence “Established in as Africon, AssureCloud is Southern Africa’s largest and most comprehensive food safety, environmental, veterinary, and occupational hygiene laboratory group.” Source: RevenueBase Database · checked Sep 19, 2026
2	Microchem By AGQ Labs	Indirect evidence	Cape Town, South AfricaHQ checked Sep 19, 2026	51-200	93 contacts →
	Indirect evidence “Established in 2007, Microchem is one of the most advanced chemical and microbiological laboratories in Africa.” Source: RevenueBase Database · checked Sep 19, 2026
3	Aquatico Scientific	Partial evidence	Pretoria, South AfricaHQ checked Sep 19, 2026	11-50	71 contacts →
	Partial evidence “Aquatico is a water testing laboratory and environmental monitoring company established in 1996.” Source: RevenueBase Database · checked Sep 19, 2026
4	UIS Analytical Services PTY LTD	Partial evidence	Centurion, South AfricaHQ checked Sep 19, 2026	51-200	51 contacts →
	Partial evidence “UIS Analytical Services (Pty) Ltd is an independent accredited testing laboratory company offering a wide range of analytical techniques and consulting services.” Source: RevenueBase Database · checked Sep 19, 2026
5	Skyside	Partial evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	48 contacts →
	Partial evidence “At Skyside, we’re creating a brighter tomorrow through innovative air emissions and water testing practices.” Source: RevenueBase Database · checked Sep 19, 2026
6	Food Consulting Services	Partial evidence	Midrand, South AfricaHQ checked Sep 19, 2026	51-200	36 contacts →
	Partial evidence “Food Consulting Services (FCS) is a private South African owned Food Testing Laboratory and Food Safety Consultancy formed in 1977.” Source: RevenueBase Database · checked Sep 19, 2026
7	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
8	Mérieux Nutrisciences - Hortec	Indirect evidence	Somerset West, South AfricaHQ checked Sep 19, 2026	51-200	30 contacts →
	Indirect evidence “Hortec is a South African company with more than 20 years’ experience in the fruit industry.” Source: RevenueBase Database · checked Sep 19, 2026
9	Waterlab PTY LTD	Indirect evidence	Pretoria, South AfricaHQ checked Sep 19, 2026	11-50	22 contacts →
	Indirect evidence “Waterlab (Pty) Ltd is an accredited private laboratory specializing in chemical and microbiological analysis of drinking water, groundwater, wastewater, industrial effluent and…” Source: RevenueBase Database · checked Sep 19, 2026
10	Nvirotek Laboratories	Indirect evidence	Hartbeespoort, South AfricaHQ checked Sep 19, 2026	51-200	21 contacts →
	Indirect evidence “NviroTek Laboratories is an independent and accredited laboratory group with a strong geographical presence in the Southern African region.” Source: RevenueBase Database · checked Sep 19, 2026
11	X-Lab	Indirect evidence	Strydom Park, South AfricaHQ checked Sep 19, 2026	11-50	20 contacts →
	Indirect evidence “South Africa’s leading environmental laboratory with the broadest scope of ISO 17025 accreditation.” Source: RevenueBase Database · checked Sep 19, 2026
12	VGL Dimensions	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	1-10	20 contacts →
	Indirect evidence “The VGL Dimensions sampling laboratory was established to provide and impartial, reliable service to get the best out of the samples taken and to benefit our customers compliance…” Source: RevenueBase Database · checked Sep 19, 2026
13	Greenhill Laboratories	Partial evidence	Hilton, South AfricaHQ checked Sep 19, 2026	11-50	17 contacts →
	Partial evidence “GreenHill Laboratories is a testing, production, and consulting laboratory to the agricultural, food, healthcare, hospitality, pharmaceutical (including CAMS and cosmetics) and…” Source: RevenueBase Database · checked Sep 19, 2026
14	Scicorp Laboratories	Partial evidence	Pretoria, South AfricaHQ checked Sep 19, 2026	11-50	16 contacts →
	Partial evidence “In operation since 2016, SciCorp laboratories is a Biotechnology laboratory that offers physical seed testing, molecular plant breeding support, authenticity confirmation, GMO…” Source: RevenueBase Database · checked Sep 19, 2026
15	Scientific Services CC	Indirect evidence	Cape Town, South AfricaHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “For over forty years SCISERV has provided professional analytical and geochemical laboratory services for our geology, exploration and mining clients throughout sub-Saharan Africa.” Source: RevenueBase Database · checked Sep 19, 2026
16	Chemnutri Analytical	Partial evidence	Clayville, South AfricaHQ checked Sep 19, 2026	51-200	9 contacts →
	Partial evidence “Chem Nutri Analytical (Pty) Ltd is an independent contract laboratory specialising in accurate, reliable testing for the food and agricultural sectors.” Source: RevenueBase Database · checked Sep 19, 2026
17	Selectech Laboratory Equipment	Indirect evidence	Roodepoort, South AfricaHQ checked Sep 19, 2026	1-10	8 contacts →
	Indirect evidence “Selectech was established in 1994, with a narrow focus on water and food quality.” Source: RevenueBase Database · checked Sep 19, 2026
18	Labtech Group	Indirect evidence	Stellenbosch, South AfricaHQ checked Sep 19, 2026	51-200	5 contacts →
	Indirect evidence “Labtech Group is an integrated analytical solutions provider to the agricultural, mining, water, pathology, pharmaceutical, aerospace, defense and energy industry.” Source: RevenueBase Database · checked Sep 19, 2026
19	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
20	KLM High-Giene Solutions	Partial evidence	Riversands, South AfricaHQ checked Sep 19, 2026	1-10	5 contacts →
	Partial evidence “KLM HIGH-giene Solutions (Pty) Ltd, is a company that to bridges the gap between food & beverage manufacturers and testing laboratories.” Source: RevenueBase Database · checked Sep 19, 2026
21	UIS Organic Laboratory	Indirect evidence	Pretoria, South AfricaHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “Based in Pretoria, South Africa, UIS Organic Laboratory is a SANAS accredited laboratory that specialises in the organic analyses of air, water and soil samples.” Source: RevenueBase Database · checked Sep 19, 2026
22	Khululekani Laboratory Services	Partial evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	4 contacts →
	Partial evidence “Khululekani Laboratory Services is a renowned pharmaceutical testing laboratory that has been providing exceptional services to multinational organizations for over 26 years.” Source: RevenueBase Database · checked Sep 19, 2026
23	Sci-Ba	Indirect evidence	Cape Town, South AfricaHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “The Sci-Ba Group is a leader in providing scientific services with a strong presence in Africa.” Source: RevenueBase Database · checked Sep 19, 2026
24	Envirocare Laboratory	Partial evidence	Potchefstroom, South AfricaHQ checked Sep 19, 2026	11-50	2 contacts →
	Partial evidence “Microbiological and Chemical Parameter Testing Laboratory.” Source: RevenueBase Database · checked Sep 19, 2026
25	Labdynamics	Partial evidence	Rant And Dal, South AfricaHQ checked Sep 19, 2026	1-10	2 contacts →
	Partial evidence “Laboratory supplier and technical services HPLC Physical testing General laboratory Raman Water systems” 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: contaminant testing services. 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 contaminant testing services.
Partial evidence: Its own public description names part of contaminant testing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name contaminant testing services. 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 71 contaminant testing services based in South Africa

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Contaminant testing services based in South Africa at a glance

As of Sep 19, 2026

22.8%Verified-email coverage

20.5Average contacts per company

11-50Median size (employees)

15.5%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 71 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 contaminant testing services, 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 “contaminant testing services”. 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 contaminant testing services), 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 contaminant testing services, 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, 332 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 contaminant testing services, 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 contaminant testing services are there based in South Africa?

RevenueBase identified 71 contaminant testing services 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?

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

Which city has the most contaminant testing services?

Johannesburg leads with 11 headquartered companies, followed by Cape Town (9) and Pretoria (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 332 verified decision-maker contacts tracked across these 71 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.