Accredited PT Providers-
| S. No. | Name | Place | Scheme | Brief/Areas |
| 1. | Interlaboratory Services (ILS), National Council for Cement & Building Materials (NCCBM) | Ballabgarh, Haryana | Simultaneous | Chemical & Mechanical Testing – Building Materials |
| 2. | CMC QAS, Department of Clinical Biochemistry, Christian Medical College, CMC | Vellore, Tami Nadu | Simultaneous | Medical Testing – Clinical Biochemistry |
| 3. | RML-Quality Assurance Program (RML-QAP) | Lucknow, Uttar Pradesh | Simultaneous | Medical Testing – Clinical Biochemistry, – Haematology, – Microbiology & Serology, – Histopathology, – Cytopathology |
| 4. | Fine Finish Organics Pvt. Ltd. | Taloja, Maharashtra | Simultaneous | Chemical & Mechanical Testing – Plastics & Polymers – Paints & Surface Coatings |
| 5. | National AIDS Research Institute, Proficiency Testing (PT) Unit | Pune, Maharashtra | Simultaneous | Medical Testing -HI -MS |
| 6. | Dr. Fixit Institute of Structural Protection & Rehabilitation, PT Division | Mumbai | Simultaneous | Non-Destructive & Mechanical Testing -Reinforced Cement Concrete |
| 7. | Global PT Provider Pvt. Ltd. | New Delhi | Simultaneous | Chemical, Mechanical, Biological & Non-Destructive Testing – Metal Testing, – Water, – Building Material, – Minerals & Ores, – Coal, Coke and other Solid Fuels, – Textile Material – Children Toys & Child Articles – Leather – Paint and enamels – Polymer and Plastic – Rubber – Corrosion – Metallic Coatings and Treatment Solutions |
| 8. | Green Economy Initiatives private Limited | Mohali | Sampling & Simultaneous | Chemical & Mechanical Testing -Atmospheric Pollution (Ambient Air, Stack Emission, Noise) -Food & Agricultural Products (Honey & Honey Products, Fruits & Vegetable Products, Infant Foods, Cereals, Pulses & Cereal Products, Milk & Dairy Products, Herbs, spices & Condiments, Oils & Fats, Bakery & Confectionery Products, Others) -Residues in Food Products (Trace Metal Elements) -Soil & Rock (Soil) -Building Material (Cement, Aggregates, Others) -Metals & Alloys (TMT Steel Bars) -Drugs & Pharmaceuticals -Minerals -Fertilisers |
| 9. | Trilogy Analytical Laboratory Private Limited | Hyderabad, Telangana | Simultaneous | Chemical Testing Food & Agricultural Products |
| 10. | ISHTM-AIIMS, External Quality Assurance Programme, Dept. of Hematology | Delhi | Simultaneous | Medical Testing – Hematology |
| 11. | Landmark Material Testing and Research Laboratory Pvt. Ltd., PT Division | Jaipur, Rajasthan | Simultaneous | Mechanical & Non-Destructive Testing -Building Material -Soil |
| 12. | Indian Pharmacopoeia Commission (Indian Pharmacopoeia Laboratory) | Ghaziabad, Uttar Pradesh | Simultaneous | Chemical Testing -Drugs and Pharmaceuticals Products |
| 13. | Horizon Analytical Laboratory Pvt. Ltd. | Pune, Maharashtra | Simultaneous | Chemical Testing -Water -Soil |
| 14. | Export Inspection Agency-Mumbai Laboratory, Pilot Test House | Mumbai | Simultaneous | Chemical Testing -Drugs in Shrimp, -Fish & Fishery Products |
| 15. | Export Inspection Agency-Chennai (Proficiency Testing Provider) | Chennai | Simultaneous | Biological Testing -Pathogen in Fish & Fishery Products |
| 16. | Export Inspection Agency-Kolkata Laboratory | Kolkata | Simultaneous | Chemical Testing -Heavy Metals in Fish & Fishery Products |
| 17. | CMC Micro EQAS, Department of Clinical Microbiology, Christian Medical College,Vellore | Vellore, Tamilnadu | Simultaneous | Medical Testing -Microbiology & Serology |
| 18. | CIMEC Infralabs Private Limited, PT Division | Ghaziabad, Uttar Pradesh | Simultaneous | Chemical, Mechanical & Electrical Testing -Building Materials -Metals & Alloy -Mechanical Properties of Materials -Cables & Wires |
| 19. | C I Proficiency Testing Pvt. Ltd. | Kota, Rajasthan | Sequential | Electro-Technical, Mechanical & Thermal Calibration |
| 20. | SCS Enviro Services Private Limited (PT Division) | Jaipur, Rajasthan | Simultaneous | Chemical Testing -Minerals & Ores -Soil & Rock -Building Material -Waste Water -Water |
| 21. | Bureau Veritas Consumer Product Service (India) Private Limited, Proficiency Testing Provider | Noida, Uttar Pradesh | Simultaneous | Chemical & Mechanical Testing -Textile Materials -Leather -Toys & Toys Material |
| 22. | CMC VIROEQAS, Department of Clinical Virology, Christian Medical College | Vellore, Tamil Nadu | Simultaneous | Medical Testing -Microbiology & Serology |
| 23. | Jalan Proficiency Testing Provider, Unit Jalan and Company | Delhi | Simultaneous | Chemical Testing -Metals & Alloys |
| 24. | HP PTP, Hindustan Petroleum Corporation Limited | Navi Mumbai, Maharashtra | Simultaneous | Chemical Testing -Petroleum & Petroleum Products |
| 25. | ITC Analytical Services, Agri Business Division, ITC Limited | Guntur, Andhra Pradesh | Simultaneous | Chemical Testing -Food & Agricultural Products |
| 26. | Fare Labs Private Limited | Gurugram, Haryana | Simultaneous & Sequential | Chemical & Biological Testing Animal Food & Feed, Atmospheric Pollution, Ayush Products, Biopesticides and Biofertilizers, Cosmetics & Essential Oils, Drugs & Pharmaceuticals, Fertilizers, Food & Agricultural products (except Human Milk), GM Product, Industrial & Fine Chemicals, Lubricants, Marine/ Aqua culture Food Products, Molecular Analysis (Tests for Various Matrices-Human, Plants, Animal, Microbial), Nutritional Supplements, Nutraceuticals & Functional Foods, Pollution & Environment, Paper and Pulp, Pesticide Formulations, Petroleum and Products, Plastic & Resins, Residues and contaminants in Food and Agricultural Products, Residues and contaminants in Water, Soap detergent & Toiletries, Soil and Rock, Solid Fuels, Water Radiological Testing – Food – Water Electro-Technical, Mechanical & Thermal Calibration |
| 27. | GES PT Division | Vadodara, Gujarat | Simultaneous | Mechanical Testing -Building Material -Soil & Rock Non-Destructive Testing -Building Material |
| 28. | Edward Food Research & Analysis Centre Limited (PTP) | Kolkata, West Bengal | Simultaneous | Chemical Testing -Food & Agricultural Products -Water |
| 29. | Deep Metallurgical Services | Thane, Maharashtra | Simultaneous | Chemical & Mechanical Testing -Metals & Alloys -Mechanical Properties of Materials |
| 30. | Proficiency Testing Provider Division, India Govt. Mint | Mumbai, Maharashtra | Simultaneous | Chemical Testing -Precious metals |
| 31. | Metropolis Healthcare Ltd./EQAS | Mumbai, Maharashtra | Simultaneous | Medical Testing – Clinical Biochemistry – -Clinical Pathology – Cytopathology – Haematology & Immunohaematology – Histopathology- Microbiology & Serology |
| 32. | Neu-QAP (Neuberg Anand Academy of Laboratory Medicine Pvt LTD Quality Assessment Program) | Bangalore, Karnataka | Simultaneous | Medical Testing – Clinical Biochemistry – Haematology & Immunohaematology – Histopathology – Microbiology & Serology – Cytogenetics |
| 33. | PTP services – Nemko India (Test Lab) Pvt Ltd. | Faridabad, Haryana | Simultaneous | Electrical & Electronics Testing |
| 34. | Chimera Translational Research Fraternity Pvt. Ltd. | Delhi | Simultaneous | Medical Testing – Haematology & Immunohaematology – Molecular Testing |
| 35. | The Bombay Textile Research Association, PT Division, | Mumbai, Maharashtra | Simultaneous | Chemical & Mechanical Testing |
| 36. | National Referral Laboratory, ICAR-National Research Centre for Grapes | Pune, Maharashtra | Simultaneous | Chemical Testing – Food & Agricultural products fruits and vegetables |
| 37. | The Synthetic And Art Silk Mills Research Association (SASMIRA) | Mumbai, Maharashtra | Simultaneous | Chemical, Mechanical & Biological Testing -Textile |
| 38. | NDDB Calf Ltd. | Gujarat | Simultaneous | Chemical, & Biological Testing – Food and Agricultural Poducts (Milk and milk products, Fats & Oils, Cattle Feed & Poultry feed and Nutritional Foods) |
| 39. | Meena International | Chennai, Tamil Nadu | Sequential | Non-Destructive Testing – Metals & Alloys |
| 40. | Maxus Engineering Services (PT Division) | Mumbai | Simultaneous | Chemical & Mechanical Testing -Admixture -Aggregates -Concrete -Buildings Materials -Metals & Alloys -Water |
| 41. | Octagon Measurement Solutions Pvt. Ltd., Pt Division | Pune, Maharashtra | Simultaneous & Sequential | Mechanical Testing Electro-Technical, Mechanical, Thermal Calibration |
| 42. | Export Inspection Agency-Kochi, PTP | Kochi, Kerala | Simultaneous | Biological Testing -Food and Agricultural Products |
| 43. | Hari Shankar Singhania Elastomer and Tyre Research Institute | Karnataka | Simultaneous | Chemical and Mechanical Testing -Rubber and Rubber Products |
| 44. | Dr Lal Pathlabs Ltd. Proficiency Testing Program | New Delhi | Simultaneous | Medical Testing -Clinical Biochemistry |
| 45. | Suviro Touchstones – Proficiency Testing Division | Faridabad, Haryana | Simultaneous | Chemical and Mechanical Testing -Metals and Alloys |
| 46. | Metal Power Private Limited-PT Division | Mumbai, Maharashtra | Simultaneous | Chemical Testing – Metals and Alloys – Ores and Minerals Mechanical Testing – Mechanical Properties of Metals – Metallography |
| 47. | Mayuresh Associates | Mumbai, Maharashtra | Sequential | Mechanical Calibration |
| 48. | Pulp and Paper Research Institute-PT Division | Rayagad, Odisha | Simultaneous | Chemical & Mechanical Testing -Paper |
| 49 | Proficiency Testing Provider Division, Neogen Food And Animal Security India Pvt. Ltd. | Kerala | Simultaneous PT Schedule | Chemical Testing -Food and Agricultural Products |
| 50 | Dr. Fixit Institute of Structural Protection & Rehabilitation, PT Division | Mumbai, Maharashtra | Simultaneous | Non-Destructive & Mechanical Testing -Reinforced Cement Concrete |
| 51 | Manglam Consultancy Services (MCS PT Division) | Vadodara, Gujarat | Simultaneous | Mechanical – Building Materials |
| 52 | Ultra Plus Lubes Pvt. Ltd. | Navi Mumbai, Maharashtra | Simultaneous | Chemical – Petroleum products |
| 53 | Max Quality Assurance Program | New Delhi, Delhi | Simultaneous | Clinical Biochemistry, Cytopathology, Haematology, Microbiology & Infectious Disease Serology |
| 54 | Shreyash Enterprises- Ptp Div. | Pune, Maharashtra | Sequential | Calibration – Mechanical |
| 55 | Crystal Quality Pt Provider | Surat, Gujarat | Simultaneous | Chemical – Water |
| 56 | IOCL Proficiency Testing Provider, Eastern Regional Laboratory | Howrah, West Bengal | Simultaneous | Chemical – Petroleum products |
| 57 | Qtex Consumer Products Services India Private Limited, Proficiency Testing Provider | Faridabad, Haryana | Simultaneous | Chemical and Mechanical – Textile and Textile Material, Leather & Footwear, Toys |
| 58 | Dr Lal Pathlabs Ltd Proficiency Testing Program | New Delhi | ||
| 59. | MD Technocrats | Gurugram, Haryana | Sequential | Electro-Technical, Mechanical, Thermal, Optical & Fluid Flow Calibration |
Proficiency Testing Programmes by other agencies
NABL also encourages participation of applicant / accredited laboratories in Proficiency Testing programs conducted by other national & international bodies.