| T0007 | CSIR, Consulting & Analytical Services (CAS), Smart Places | Brummeria, Pretoria | Gauteng | Chemical and Microbiological Analysis |
| T0013 | Columbus Stainless (Pty) Ltd | Middelburg | Mpumalanga | Chemical Analysis and Mechanical Testing |
| T0032 | Protechnik Laboratories Ltd | Centurion | Gauteng | Chemical and Physical Analysis |
| T0036 | Umgeni Water Laboratory Services | Pietermaritzburg | KwaZulu-Natal | Chemical, Hydrobiological & Microbiological Analysis |
| T0040 | M & L Laboratory Services | Johannesburg | Gauteng | Chemical, Microbiology, Environmental and Occupational Hygine |
| T0042 | Mintek Analytical Services Division | Randburg | Gauteng | Chemical Analysis |
| T0046 | Rand Water Analytical Services | Vereeniging | Gauteng | Chemical, Microbiological and Hydrobiological Analysis |
| T0050 | Swift Silliker (Pty) Ltd | Cape Town | Western Cape | Microbiological and Chemical Analysis |
| T0051 | Anglo Corporate Services South Africa (Pty) Ltd, Mining and Technology Technical Solutions | Johannesburg | Gauteng | Chemical and Mettalurgical Analysis |
| T0055 | ESKOM Holdings SOC Ltd | Cleveland | Gauteng | Chemical & Microbiological Analysis |
| T0056 | Intertek Testing Services South Africa (Pty) Ltd | Island View, Bluff, Durban | KwaZulu-Natal | Chemical Analysis |
| T0057 | Intertek Testing Services South Africa (Pty) Ltd | Richards Bay | KwaZulu-Natal | Chemical Analysis |
| T0063 | ARC-Irene Analytical Services | Irene | Gauteng | Chemical and Microbiological Analysis |
| T0077 | Johannesburg Water (Pty) Ltd | Houghton | Gauteng | Chemical Analysis |
| T0080 | SAPPI Southern Africa (Pty) Ltd | Lynnwood, Pretoria | Gauteng | Chemical & Physical Analysis |
| T0082 | Ekurhuleni Water Care Company NPCÂ (ERWAT) Laboratory Services | Kempton Park | Gauteng | Chemical and Microbiological Analysis |
| T0083 | Sugar Milling Research Institute | Durban | KwaZulu-Natal | Chemical and Microbiological Analysis |
| T0090 | SABS Commercial SOC Ltd Water Laboratory, Water Laboratory | Cape Town | Western Cape | Chemical Analysis |
| T0093 | CSIR, Analytical Services Stellenbosch | Stellenbosch | Western Cape | Chemical Analysis |
| T0098 | SAPREF Laboratory | Durban | undefined | Chemical Analysis |
| T0111 | South African Nuclear Energy Corporation Limited (NECSA), Radio Analysis Laboratory | Pretoria | Gauteng | Radio Activity Analysis |
| T0113 | SABS Commercial SOC Ltd Microbiology Lab | Cape Town | Western Cape | Microbiological Analysis Laboratory |
| T0116 | Southern African Grain Laboratory (NPC) | Pretoria | Gauteng | Chemical and Physical Analysis |
| T0121 | Sasol Secunda Synfuels Operations (Pty) Ltd, Sasol SSO Environment Air | Secunda | Mpumalanga | Ambient Air Monitoring |
| T0122 | Talbot Laboratories (Pty) Ltd | Pietermaritzburg | KwaZulu-Natal | Chemical and Microbiological Analysis |
| T0123 | Samancor Western Chrome Mine | Mooinooi | North West | Chemical Analysis |
| T0127 | Natref Laboratory | Sasolburg | Free State | Chemical Analysis |
| T0129 | Food Consulting Services (Pty) Ltd | Midrand | Gauteng | Microbiological Analysis |
| T0132 | Midvaal Water Company Laboratory | District Klerksdorp | North West | Chemical and Microbiological Analysis |
| T0134 | Sedibeng Water - Quality Control Laboratory | Bothaville | Free State | Chemical & Biological Analysis |
| T0136 | Micron Laboratories | Cape Town | Western Cape | Microbiological Testing: Fish, Chicken, Meat, Milk and Water |
| T0141 | Alfred H Knight Limited | Kitwe | Zambia | Chemical and Metallurgical Analysis |
| T0145 | Mhlathuze Water Soc Ltd | Richards Bay | KwaZulu-Natal | Chemical, Microbiological and Hydrobiological Analysis |
| T0147 | SAPPI Southern Africa Ltd | Umkomaas | Eastern Cape | Ambient Air Quality Monitoring |
| T0151 | SGS Kenya Limited, Mombasa Laboratory | Mombasa, Kenya | Kenya | Chemical & Microbiological Analysis |
| T0156 | Regen Waters CC | Witbank | Mpumalanga | Chemical and Microbiological Analysis |
| T0161 | Chem-Science Laboratories (Pty) Ltd | Durban | KwaZulu-Natal | Chemical Analysis |
| T0164 | Rhodes Food Group | Paarl | Western Cape | Microbiological Analysis |
| T0165 | Arcelor Mittal South Africa Ltd | Newcastle | Free State | Chemical Analysis; Mechanical Testing; Metallurgical Testing |
| T0168 | The South African Nuclear Energy Corporation Ltd (NECSA), Pelindaba Analytical Laboratories (PAL) | Brits | North West | Chemical Analysis |
| T0177 | Impala Platinum Limited, Mineral Processes Laboratory | Rustenburg | North West | Chemical Analysis |
| T0180 | D D Science | Johannesburg | Gauteng | Chemical & Microbiological Analysis |
| T0184 | UIS Analytical Services (Pty) Ltd | Centurion | Gauteng | Chemical Analysis |
| T0200 | Uganda National Bureau of Standards (UNBS) | Uganda | Uganda | Microbiological and Chemical Analysis |
| T0202 | Pionner Foods Groceries (Pty) Ltd | Ceres | Western Cape | Chemical & Microbiological Analysis |
| T0204 | SABS Commercial SOC Ltd, Springlake Laboratory Izimbiwa Coal | Ballengeich | KwaZulu-Natal | Chemical Analysis & Sampling |
| T0205 | Vinlab (Pty) Ltd Main Laboratory | Stellenbosch | Western Cape | Chemical and Microbiological Analysis |
| T0209 | Kenya Plant Health Inspectorate Service, (Kephis) Analytical Chemistry Laboratory | Nairobi, Kenya | Kenya | |
| T0215 | Distell Central Laboratory - Quality Management and Research | Stellenbosch | Western Cape | |
| T0219 | South African Sugar Association (Pty) Ltd (Terminal) | Durban | KwaZulu-Natal | Chemical Analysis |
| T0221 | Anglo Platinum - Precious Metals Refiners (Pty) Ltd | Rustenburg District | North West | Chemical Analysis |
| T0223 | Set Point Laboratories | Isando | Gauteng | Chemical Analysis |
| T0224 | Finlays Horticulture(K) Limited | Ibis Farm | Kenya | Microbiological Analysis |
| T0229 | HECS Laboratory Services cc | Bethal | Mpumalanga | Chemical Analysis |
| T0230 | SABS Commercial SOC Ltd Coal Laboratory | Secunda | Mpumalanga | Chemical and Physical Analysis |
| T0232 | Hearshaw and Kinnes Analytical Laboratory | Westlake Business Park | undefined | Chemical Analysis |
| T0233 | Glencore Operations South Africa | Rustenburg | North West | Chemical Analysis |
| T0237 | Sasol South Africa Proprietary Ltd, Sasol Sasolburg Operations | Sasolburg | Mpumalanga | Ambient Air Quality Monitoring |
| T0243 | SGS South Africa | Durban | undefined | Chemical and Petroleum Analysis |
| T0246 | SABS Commercial SOC Ltd Coal & Sampling plant | Richards Bay | KwaZulu-Natal | Chemical and Physical Analysis |
| T0248 | PPECB Laboratory Services | Centurion | Gauteng | Chemical Analysis |
| T0253 | Tobacco Research Board | Zimbabwe | Zimbabwe | Chemical and Molecular Biology Analysis |
| T0254 | Clover Laboratory Services | Oliphantsfontein | Gauteng | Chemical Analysis |
| T0260 | Arcelormittal South Africa | Vanderbijlpark | Gauteng | Chemical Analysis |
| T0261 | NAS Airport Services Limited | Kenya | Kenya | Microbiological Analysis |
| T0265 | Performance Laboratories (Pty) Ltd | Randfontein | Gauteng | Chemical Analysis |
| T0267 | Tronox KZN Sands (Pty) Ltd | KwaZulu-Natal | KwaZulu-Natal | Chemical and Physical Analysis |
| T0269 | SABS Commercial SOC Ltd Food & Pharmaceutical Microbiology | Pretoria | Gauteng | Microbiological Analysis |
| T0270 | SABS Commercial SOC LTD Chromatographic Services | Pretoria | Gauteng | Chemical Analysis |
| T0275 | Bio-Science Technologies (Pty) Ltd | Durban | KwaZulu-Natal | Microbiological Analysis |
| T0276 | AL Abbott and Associates (Pty) Ltd | Cape Town | Western Cape | Chemical and Microbiological Analysis |
| T0279 | CSIR-Food Research Institute | Accra, Ghana | Ghana | Chemical, Toxicological & Microbiological Analysis |
| T0285 | Glencore Wonderkop | Rustenburg | North West | Chemical Analysis |
| T0286 | Breeriviervallei Botterlings Kooperasie (BBK) | Worcester | Western Cape | Chemical Analysis |
| T0299 | In 2 Food Group (Pty) Ltd | Boksburg | Gauteng | Microbiology Analysis |
| T0302 | Laboratory and Biological Services cc | Alberton | Gauteng | Microbiological Analysis |
| T0313 | Bureau Veritas Inspectorate Laboratories (Pty) Ltd | Middelburg | Mpumalanga | Chemical Analysis |
| T0314 | Cosmetics Food Science Technologies CC, Food and Cosmetic Technologies (Fact) | Durban | KwaZulu-Natal | Chemical and Microbiological Analysis |
| T0316 | Coca Cola Eswatini | Matsapha | Swaziland | Chemical Analysis |
| T0320 | SABS Commercial SOCLtd - Pharmaceutical Chemistry | Pretoria | Gauteng | Chemical Analysis |
| T0335 | Mintek Cyanide Centre | Randburg | Gauteng | Chemical Analysis |
| T0336 | Department of Agriculture, Land Reform and Rural Development | Stellenbosch | Western Cape | Chemical Analysis |
| T0350 | Swift Silliker (Pty) Ltd | Midrand | Gauteng | Chemical and Microbiological Analysis |
| T0357 | British American Tobacco SA (Pty) Ltd | Heidelberg | Gauteng | Chemical and Physical Analysis |
| T0361 | Chemtech Laboratory Services CC | Pretoria | Gauteng | Chemical Analysis |
| T0364 | ALS Analysis and Inspection - Durban (Pty)Ltd | Berea | KwaZulu-Natal | Chemical & Microbiological Analysis |
| T0367 | Aspirata Auditing Testing and Certification (Pty) Ltd, T/A NOSA Testing | Midrand | Gauteng | Chemical and Microbiological Analysis |
| T0372 | eThekweni Water & Sanitation - Scientific Services | Durban | KwaZulu-Natal | Chemical & Microbiological Analysis |
| T0375 | Water Analytical Laboratory cc | Stellenbosch | Western Cape | Microbiological Analysis |
| T0376 | Absolute Science (Pty) Ltd | Pretoria | Gauteng | Chemical Analysis |
| T0379 | Sibanye Still Water Analytical Laboratory, Driefontein Operations | Goudveld | Gauteng | Chemical Analysis |
| T0384 | Golder Associates Research Laboratory | Florida | Gauteng | Environmental Analysis |
| T0387 | ALS Chemex South Africa (Pty) Ltd, ALS Minerals | Edenvale | Gauteng | Chemical Analysis |
| T0389 | West Bio-Chemical Services (Pty) Ltd | Pretoria | Gauteng | Chemical Analysis |
| T0391 | Waterlab (Pty) Ltd | Meiring Naude Road, Pretoria | Gauteng | Chemical and Microbiological Analysis |
| T0393 | Microchem Lab Services (Pty) Ltd | Cape Town | Western Cape | Chemical and Microbiological Analysis |
| T0399 | Home of Origin Wine (Pty) Ltd | Stellenbosch | Western Cape | Chemical Analysis |
| T0404 | Rustenburg Platinum Mine Limited, Mogalakwena Section Laboratory | Mokopane | Limpopo | Chemical Analysis |
| T0410 | Food and Drug Assurance Laboratories (Pty) Ltd | Pretoria | Gauteng | Chemical Analysis |
| T0413 | Bureau Veritas Inspectorate Laboratories (Pty) Ltd | Richards Bay | KwaZulu-Natal | Chemical Analysis |
| T0414 | Anglo America Platinum Limited | Polokwane | Limpopo | Chemical Analysis |
| T0415 | Rustenburg Platinum Mines Limited, Rustenburg Base Metals Refinery | Rustenburg | North West | Chemical Analysis |
| T0417 | Integral laboratories (Pty) Ltd | Paarl | Western Cape | Chemical and Microbiological Analysis |
| T0419 | UIS Organic Laboratory (Pty) Ltd | Pretoria | Gauteng | Chemical Analysis |
| T0420 | Council For Scientific and Industrial Research (CSIR), Air and Dust Laboratory | Pretoria | Gauteng | Environmental Analysis |
| T0421 | SAPO Trust Plant Pathology Laboratory | Stellenbosch | Western Cape | Microbiological Analysis |
| T0422 | Envirocare Laboratory | Potchefstroom | North West | Microbiological and Chemical Analysis |
| T0425 | Merafe Ferrochrome and Mining (Pty) Ltd | Boshoek | Gauteng | Chemical Analysis |
| T0434 | Glencore Operations South Africa (Pty) Ltd | Brits | North West | Chemical Analysis |
| T0447 | Siza Coal Services (Pty) Ltd | Kinross | Mpumalanga | Chemical and Physical Analysis |
| T0448 | Scrooby's Laboratory Services CC | Benoni | Gauteng | Mechanical and Chemical Analysis |
| T0450 | MLS National Laboratory (Pty) Ltd | Midrand | Gauteng | Microbiological Testing |
| T0451 | Hortec (Pty) Ltd | Somerset West | Western Cape | Physical and Chemical Analysis |
| T0452 | Nestle South Africa Pty Ltd, Nestle Quality Assurance Centre | Olifantsfontein | Gauteng | Chemical and Microbiological Analysis |
| T0465 | SGS South Africa (Pty) Ltd | Port of Richards Bay | KwaZulu-Natal | Chemical Analysis |
| T0466 | Omnia Group (Pty) Ltd, Chemtech Laboratories | Sasolburg | Free State | Chemical and Microbiological Analysis |
| T0467 | KL Analytical Services CC t/a Labserve | Nelspruit | Mpumalanga | Chemistry and Microbiology |
| T0469 | Bureau Veritas Testing and Inspections South Africa (Pty) Ltd | Centurion | Gauteng | Chemical Analysis |
| T0470 | African Assay Laboratories (T) Ltd, Mwanza Geochem Laboratory | Mwanza | undefined | Chemical Analysis |
| T0474 | Golden Pond | Florida | Gauteng | Chemical Testing |
| T0477 | Integral laboratories (Pty) Ltd | Empangeni | Western Cape | Chemical and Microbiological Analysis |
| T0478 | WITLAB (PTY) LTD | Witbank | Mpumalanga | |
| T0484 | City of Cape Town, Water and Sanitation, Scientific Services Department | Cape Town | Western Cape | Chemical and Hydrobiology Analysis |
| T0485 | Quality Plus Laboratory and Consultancy Services Limited | Nairobi, Kenya | Kenya | Microbiological Analysis |
| T0487 | Quality Laboratory Services | Rustenburg | North West | Chemical and Microbiological Analysis |
| T0489 | Microchem Lab Services (Pty) Ltd, Gauteng Micro Lab | Benoni | Gauteng | Microbiology Analysis |
| T0493 | SGS South Africa (Pty) Ltd) Someset West Agri Lab | Someset West | Western Cape | Chemical Analysis |
| T0494 | Super Laboratory Services (Pty) Ltd, Testing laboratory | Springs | Gauteng | Chemical Analysis |
| T0496 | BBE Laboratory (Pty) Ltd | Pretoria | Gauteng | Chemical Analysis |
| T0498 | Pathcare Group of Companies- Port Elizabeth Laboratory | Central Port Elizabeth | Eastern Cape | Microbiological Analysis |
| T0503 | Samancor Chrome Ltd, Eastern Chrome Mines Laboratory Ltd | Steelpoort | Mpumalanga | Chemical Analysis |
| T0504 | Siza Coal Services (Pty) Ltd | Middleburg | Mpumalanga | Chemical Analysis |
| T0510 | Glencore Operations South Africa (Pty) Ltd, Lion Smelter Laboratory | Steelpoort | Mpumalanga | Chemical Analysis |
| T0512 | Noko Analytical Services CC | Witbank | Mpumalanga | Chemical Analysis |
| T0516 | Lepelle Northern Water | Haenertsburg | Limpopo | Microbiological Analysis |
| T0520 | Harmony Gold Ltd-Harmony Assay Laboratory | Welkom | Free State | Chemical Analysis |
| T0525 | Wearcheck a division of Torre Analytical Services (Pty) Ltd | Johannesburg | Gauteng | chemical Analysis |
| T0528 | Tubatse Chrome (Pty) Ltd, Tubatse Chrome Laboratory | Steelpoort | Mpumalanga | Chemical Analysis |
| T0529 | Enviroserve Waste Management (Pty) Ltd | Johannesburg | Gauteng | Chemical Analysis |
| T0530 | Assmang LTD, Chrome Machadodorp Works | Machadodorp | Mpumalanga | Chemical Analysis |
| T0532 | Joburg Market Laboratory (Pty) Ltd | Johannesburg | Gauteng | Chemical Analysis |
| T0533 | Performance Laboratories Zimbabwe | Harare | Zimbabwe | Chemical Analysis |
| T0535 | B.N Kirk(Natal) CC | Durban | undefined | Chemical and Microbiological Analysis |
| T0544 | The MSA Group (Pty) Ltd | Johannesburg | Gauteng | Chemical Analysis |
| T0550 | Lomin Limited,Western Platinum Refinery | Brakpan | Gauteng | Chemical Analysis |
| T0555 | NMISA, Inorganic Analysis | Pretoria | Gauteng | Chemical Analysis (Flexible Scope Accreditation) |
| T0556 | Pioneer Foods Groceries (Pty) Ltd | Gauteng | Gauteng | Microbiological Analysis |
| T0561 | SGS South Africa, Trichardt Labroratory | Trichard | Mpumalanga | Chemical Analysis |
| T0564 | Gijima Holdings (Pty) Ltd, Occupational Hygiene and Environmental Laboratory | Midrand | Gauteng | Chemical Analysis |
| T0565 | Performance Laboratories (Pty) Lty | Barberton | Mpumalanga | Chemical Analysis |
| T0571 | Aqua Spectro CC | Witbank | Mpumalanga | Chemical Analysis |
| T0574 | Biograde CC | Pretoria | Gauteng | Chemical Analysis |
| T0575 | Eskom Holdings Soc Ltd | Witbank | Mpumalanga | Chemical Analysis |
| T0577 | Alfred H Knight SA (Pty) Ltd | Richards Bay | KwaZulu-Natal | Chemical Analysis |
| T0584 | UIS-Sediba Laboratory (Pty) Ltd | Irene | Gauteng | Chemical Analysis |
| T0587 | Rhodes Food Group( Pty) Ltd | Johannesburg | Gauteng | Microbiological Analysis |
| T0590 | Sibonisiwe Coal Laboratory Servies | Middleburg | Mpumalanga | Chemical and Metallurgical Analysis |
| T0595 | SGS South Africa(Pty) Ltd Agri Food Laboratory Maitland | Cape Town | Western Cape | Chemical and Microbiological Analysis |
| T0597 | Technology Innovation Agency, Bioprocessing Platform Analytical Laboratory | Umbogintwini | KwaZulu-Natal | Chemical Analysis |
| T0601 | PCL Laboratories (Pty) Ltd | Rustenburg | North West | Chemical Analysis |
| T0605 | SABS Commercial SOC Ltd C&M Analytical Laboratory | Pretoria | Gauteng | Chemical Testing |
| T0606 | Central Analytical Laboratories a division of Astral Operations Limited | Roodepoort | Gauteng | Chemical Analysis |
| T0610 | V+M Analtical Toxicology Services (Pty) Ltd | George | Western Cape | Chemical Analysis |
| T0612 | Cotecna South Africa (Pty) Ltd | Middleburg | Mpumalanga | Chemical Analysis |
| T0615 | Aspirata T/A Assurecloud | Port Elizabeth | Eastern Cape | Microbiological Analysis |
| T0618 | Umzamowonke Trading and Projects 25 CC, Umzamo Analytical Services | Klipfontein | Mpumalanga | Chemical Analysis |
| T0620 | Bureau Veritas Gazelle (Pty) Ltd | Bluff | KwaZulu-Natal | Chemical Analysis |
| T0625 | Magalies Water Board, Scientific Services Brits Laboratory | Britz | North West | Chemical and Microbiological Analysis |
| T0626 | East London Industrial Development Zone Soc Ltd, Elidz Consulting and Analytical Services | East London | Eastern Cape | Microbiological Analysis |
| T0627 | Intertek Testing Services (Pty) Ltd | Bapsfontein | Gauteng | Chemical and Microbiological Analysis |
| T0631 | Dolphin Coast Environment and Laboratory Solutions (Pty) Ltd | Kwadukuza | undefined | Chemical Analysis |
| T0636 | Global Clinical and Viral Laboratory cc | Durban | KwaZulu-Natal | Microbiological Analysis |
| T0638 | SGS Laboratory Services Limited (Ghana), SGS Tarkwa Laboratory | Tarkwa Ghana | Ghana | Chemical Analysis |
| T0641 | BP South Afrika (Pty) Ltd, BP Technology Centre Kyalami | Johannesburg | Gauteng | Chemical Analysis |
| T0643 | Samancor Chrome Limited - Ferrometals | Witbank | Mpumalanga | Chemical Analysis |
| T0647 | Yanka Laboratories (Pty) Ltd | Witbank | Mpumalanga | Chemical and Microbiological Analysis |
| T0648 | EPC Laboratories | Stellenbosch | Western Cape | Microbiological Analysis |
| T0652 | SGS Mali Sarlu, Bamako SGS Mineral Laboratory | Mali | Other | Chemical Analysis |
| T0653 | SGS Laboratory Services Burkina SA | West Africa | undefined | Chemical Analysis |
| T0654 | BEMLAB (PTY) LTD | Strand | Western Cape | Chemical and Microbiological Analysis |
| T0655 | Rappa Resources (Pty) Ltd, Rappa Research Laboratory | Germiston | Gauteng | Chemical Analysis |
| T0657 | Council For Scientific and Industrial Research (CSIR), NRE Water Resources | Pretoria | Gauteng | Microbiological Analysis |
| T0658 | Mitra SK South Africa (Pty) Ltd | Richardsbay | undefined | Chemical analysis |
| T0660 | National Health LAboratory Services, National Institute for Occupational Health | Johannesburg | Gauteng | Chemical and Microbiological Analysis |
| T0662 | Siza Coal Services (Pty) Ltd, Water Laboratory | Middelburg | Mpumalanga | |
| T0663 | Biotoxlab (Pty) Ltd | Pretoria | Gauteng | Chemical and Hydrobiology Analysis |
| T0664 | Eskom Holding SOC Ltd | Roscherville | Gauteng | Ambient Air Monitoring |
| T0666 | Shell Exploration and Production Companies in Nigeria, Shell Petroleum Development | River State | Nigeria | Chemical Analysis |
| T0670 | ESKOM Holdings SOC Ltd, Arnot Power Station | Rietkuil | Mpumalanga | Chemical Analysis |
| T0671 | Amatola Water | East London | Eastern Cape | Chemical And Microbiology |
| T0678 | SMT Labs (Pty) Ltd | Bloemfontein | Free State | Microbiological Analysis |
| T0679 | ESKOM Holdings SOC Ltd, Camden Power Station Laboratory | Nucam | Mpumalanga | Chemical Analysis |
| T0681 | Food and Allergy Consulting and Testing Services CC | Stellenbosch | Western Cape | Immunology and Molecular Analysis |
| T0683 | SGS Tanzania Superintendance Company Limited | Tanzania | undefined | Chemical Analysis |
| T0685 | Aquatico Laboratories (Pty) Ltd | Pretoria | Gauteng | Chemical, Microbiological and Environmental Analysis |
| T0687 | Integral Laboratories (Pty) Ltd | Kwazulu-Natal | KwaZulu-Natal | Chemical Analysis |
| T0688 | SGS Rustenburg | Rustenburg | North West | Chemical Analysis |
| T0689 | Ready Lead Assay Laboratory CC | Springs | Gauteng | Chemical Analysis |
| T0692 | Vitro Vian Trading and Projects (Pty) Ltd | Delmas | Gauteng | Chemical |
| T0695 | Institute for Groundwater Studies Laboratories | Bloemfontein | Free State | Chemical and Microbiological Anlaysis |
| T0698 | South African Weather Service Soc Ltd, SAWS, Department Air Quality Information | Pretoria | Gauteng | |
| T0699 | Tharisa Minerals (Pty) Ltd | Marikana | North West | |
| T0701 | SKYSIDE (PTY) LTD | Durban | KwaZulu-Natal | Emission Testing and Analysis |
| T0705 | Kenya Burea of Standards, Testing Services Department | Nairobi | Kenya | Chemical & Microbiological Analysis |
| T0708 | Drinking Water Quality Labs (Pty) Ltd, Testit Labs | Bloemfontein | Free State | Chemical and Microbiological Analysis |
| T0713 | Chem Nutri Analytical (Pty) Ltd | Olifantsfontein | Gauteng | Chemical Analysis |
| T0723 | Sibanye Stillwater (Pty) Ltd | Theunissen | Free State | Chemical analysis |
| T0729 | Element Materials Technology South Africa (Pty) Ltd | Somerset West | Western Cape | Chemical Analysis |
| T0730 | SGS Minerals Services Mali Sarlu, Syama Mine Site Laboratory | Mali - West Africa | undefined | Chemical Analysis |
| T0731 | Metchem Laboratories CC, Metchem Laboratories Rustenburg | Rustenburg | North West | Chemical Analysis |
| T0733 | Simlab (Pty) Ltd | Kimberley | Northern Cape | Chemical Analysis |
| T0736 | Interwaste (Pty) Ltd, Interwaste Hub Laboratory | Germiston South | Gauteng | Chemical Analysis |
| T0738 | SGS Richards Bay | Richards Bay | Northern Cape | Chemical |
| T0739 | Zamangwane Consultants (Pty) Ltd | Nelspruit | Mpumalanga | Chemical and Microbiological Analysis |
| T0743 | GE Supplies (Pty) Ltd, T/A Milkolab | Cape Town | Western Cape | Chemical |
| T0747 | ALS Ghana Limited | AShanti Region | Ghana | Chemical Analysis |
| T0751 | ALS Inspection (Pty) Ltd | Richardsbay | Kwazulu-Natal | Chemical Analysis |
| T0753 | Gert Sibande District Municipality, Water Quality LAb | Ermelo | Mpumalanga | Chemical & Microbiological Analysis |
| T0754 | Eskom Holdings Soc Ltd, Komati Power Station, Chemical Services Department | Witbank | Mpumalanga | Chemical Analysis |
| T0755 | Meetse-Tech Laboratory Services | Benoni | Gauteng | Chemical Analysis |
| T0757 | Exxaro Coal (Pty) Ltd | Lephalale | Limpopo | Chemical Analysis |
| T0758 | SciCorp Laboratories (Pty) Ltd | Pietermaritzburg | undefined | Chemical |
| T0759 | Aspirata Auditing Testing and Certification (Pty) Ltd, T/A NOSA Testing | Durban | KwaZulu-Natal | Environmental and Microbiological Analysis |
| T0760 | Aspirata Auditing Testing and Certification (Pty) Ltd, T/A Nosa Testing | Cape Town | undefined | Chemical and Microbiological Analysis |
| T0761 | Eskom Holdings SOC Ltd,Tutuka Power Station | Standerton | Mpumalanga | |
| T0762 | SGS Mali Sarlu, Envilab Mali | Bamako | undefined | Chemical Analysis |
| T0767 | VR Environmental Consultants CC | Johannesburg | Gauteng | Environmental |
| T0768 | In2Food (Pty) Ltd | Strand | Western Cape | Microbiological Analysis |
| T0769 | ESKOM HOLDINGS SOC LTD, Lethabo Power Station | Vereeniging | Gauteng | Chemical Analysis |
| T0773 | Eskom Holdings Soc Ltd, Matimba Power Station, Coal Laboratory | Lephalale | Limpopo | Chemical Analysis |
| T0775 | Xlab Earth Science (Pty) Ltd | Randburg | Gauteng | Chemical Analysis |
| T0776 | Eskom Holdings Soc Ltd, Kendal Power Station | Emalahleni | Mpumalanga | Chemical Analysis |
| T0780 | Assmang (Pty) Ltd | Kathu | Northern Cape | Chemical |
| T0783 | Bureau Veritas Inspectorate Laboratories (Pty) Ltd, Tendele Coal Mining | West Mtubatuba | KwaZulu-Natal | Chemical Analysis |
| T0788 | Eskom Holdings Soc Ltd, Eskom Kriel Power Station | Kriel | Mpumalanga | |
| T0789 | Ronewa Analytical Laboratory (Pty) Ltd | Middelburg | Mpumalanga | Chemical Analysis |
| T0790 | Southern African Grain Laboratories, Crop Pretection Division | Pretoria | Gauteng | Chemical |
| T0796 | Intertek Minerals Ltd, Tarkwa | Western Region | Ghana | Chemical Analysis |
| T0802 | Precision Oil Laboratories (Pty) Ltd | Tzaneen | Limpopo | Chemical Analysis |
| T0803 | Gondwana Environmental Solutions International (Pty) Ltd | Roodepoort | Gauteng | Environmental Analysis |
| T0807 | Muratho Laboratory Services and Consulting | Polokwane | Limpopo | Chemical |
| T0809 | Peter Johnson Laboratories CC | Cape Town | Western Cape | Chemical |
| T0810 | Cawood Laboratories | Vredenburg | Western Cape | Chemical |
| T0813 | Assmang (Pty) Ltd | Durban | Kwazulu-Natal | Chemical Analysis |
| T0814 | SGS South Africa (Pty) Ltd, Impunzi Laboratory | Witbank | Mpumalanga | Chemical Analysis |
| T0815 | SGS South Africa (Pty) Ltd | Middleburg | Mpumalanga | Chemical Analysis |
| T0817 | SGS South Africa (Pty) Ltd | Witbank | Mpumalanga | Chemical Analysis |
| T0818 | Aquatico Monitoring (Pty) Ltd | Pretoria | Gauteng | Microbiological and Environmental Analysis |
| T0822 | NviroTek Laboratories (Pty) Ltd | Brits | North West | Chemical Laboratory |
| T0825 | Speslab (Pty) Ltd | Johannesburg | Gauteng | Molecular Analysis |
| T0826 | SGS South Africa (Pty) Ltd, SGS Wonderfontein Lab | Belfast | Mpumalanga | Chemical Analysis |
| T0827 | SGS South Africa (Pty) Ltd | Tweefontein | Mpumalanga | Chemical Analysis |
| T0829 | Engen Petroleum Limited, Refinery Laboratory | Durban | undefined | Chemical Analysis |
| T0830 | AEL Mining Services (Pty) Ltd | Modderfontein | Gauteng | Chemical Analysis |
| T0831 | Eskom Medupi Power Station | Lephalale | Limpopo | Chemical Analysis |
| T0836 | SGS Minerals Services Mali Sarlu Loulo Minesite Laboratory | Mali | undefined | Chemical Analysis |
| T0839 | EnviroNgaka (Pty) Ltd,Emission Testing | Brits | North West | Emission Testing and Analysis |
| T0840 | National Health Laboratory Services | Durban | KwaZulu-Natal | Microbiological Analysis |
| T0842 | Integral Laboratories SA (Pty) Ltd | Woodmead, Sandton | Gauteng | Chemical and Microbiological Analysis |
| T0843 | Engen Petroleum Limited | Durban | Kwazulu-Natal | Petroleum |
| T0846 | Levego Environmental Services (Pty) Ltd | Johannesburg | Gauteng | Emissions Testing & Ambient Air Monitoring |
| T0847 | BioSel Laboratory Solution (Pty) Ltd | Mogwase | North West | Microbiolgy Analysis |
| T0848 | De Bruyn Spectroscopic Solutions cc | Midrand | Gauteng | Chemical Analysis |
| T0858 | PCL Laboratories (Pty) Ltd | Lydenburg | Limpopo | Chemical Analysis |
| T0866 | SABS Commercial SoC Ltd | Groenkloof | Gauteng | Chemical Analysis |
| T0867 | SGS Hounde Laboratory | Hounde | undefined | Chemical Analysis |
| T0868 | Agricultural Research Council | Arcadia, Pretoria | Gauteng | Chemical |
| T0872 | Bushveld Vametco Alloys (Pty) Ltd | Brits | North West | Chemical Analysis |
| T0878 | SABS Commercial SoC Ltd | Groenkloof | Gauteng | Chemical Anlaysis |
| T0885 | Vinlab H2O (Pty) Ltd | Stellenbosch | Western Cape | Chemical and Microbiology |
| T0886 | Sand Pipers Trading Enterprise | Witbank | Mpumalanga | Chemical Teasting |
| T0891 | Wynland Analytical Laboratory | undefined | Western Cape | Chemical Anlaysis |
| T0892 | Enviroserv Uganda Limited | Kaisotonya Road | undefined | Chemical Analysis |
| T0894 | Rayten Engineering Solutions (Pty) Ltd | Randburg | Gauteng | Chemical Analaysis |
| T0895 | QMS Laboratories | Letsitele | Limpopo | Chemical and Microbiological Analysis |
| T0897 | TC Smelters (Pty) Ltd | Mooinooi | North West | Chemical Analysis |
| T0898 | Bureau Veritas Inspectorate Laboratories (Pty) Ltd | Hotazel | Northern Cape | Chemical |
| T0899 | De Beers Group Services (Pty) Ltd | Wesselton Village, DairyFarm, Kimberley | Northern Cape | Chemical |
| T0900 | Professional Platinum Services (Pty) Ltd | Swartklip, Northerm | Northern Cape | Chemical |
| T0901 | Department of Agriculture, Land Reform and Rural Development | Arcadia, Pretoria | Gauteng | Chemical Analysis |
| T0903 | SGS South Africa (Pty) Ltd | Hotazel | Northern Cape | Chemical Analysis |
| T0904 | Transalloys | Clewer, Witbank | Mpumalanga | Chemical Anlaysis |
| T0905 | Palabora Copper Laboratories | Phalaborwa | Limpopo | Chemical Anlaysis |
| T0907 | Clayville Nutritionals | Clayville | Gauteng | Microbiological Analysis |
| T0910 | SGS South Africa (Pty) Ltd | Orkney | North West | Chemical Analysis |
| T0911 | Mpumamanzi Group | Ext 1 Industrial Area | Mpumalanga | Chemical and Microbiology |
| T0916 | Watericon Laboratory Services | Modderfontein Industrial | Gauteng | Chemical |
| T0918 | Sedibeng Water Vaal Gamagara Quality Control Laboratory | Northren Cape | Northern Cape | Chemical and Microbiological Analysis |
| T0919 | Idwala Lime | Danielskuil | Northern Cape | Chemical Analysis |
| T0920 | Mobilab (Pty) Ltd | West Turfontein | Gauteng | Chemical Analysis |
| T0921 | GTT Laboratories (Pty) Ltd | Cato Ridge | KwaZulu-Natal | |
| T0924 | UIS Microbiology (Pty) Ltd | Centurion | Gauteng | Microbiological Analysis |
| T0926 | Kobus Dekker Occupational Hygiene Consultancy (Pty) Ltd | Potchefstroom | North West | Enviromental Analysis |
| T0934 | A-GAS South Africa (Pty) Ltd | Cape Town | Western Cape | Environmental Analysis |
| T0935 | Cotecna Ubumbene (Pty) Ltd | Middelburg | Mpumalanga | Chemical |
| T0936 | Oilwatch Transformer Services Laboratory | Isando | Gauteng | Chemical Analysis |
| T0945 | GreenHill Laboratories (Pty) Ltd | Hilton | KwaZulu-Natal | Chemical, Microbiological and Veterinary Serological Analysis |
| T0958 | FLSmidth Sampling Plant | Saldanha | Western Cape | Chemical |
| T0970 | Silver Solutions 1445 CC | Evander, Mpumalanga | Mpumalanga | Chemical |
| T0978 | NVIROTEK Laboratories (Pty) Ltd | Wellington | Western Cape | Microbiological and Chemical Analysis |