# The 25 largest chemical companies in Gauteng

Tamtam tracks 25 chemical companies headquartered in Gauteng. This list ranks all of them by number of employees on LinkedIn, led by S.A.S., Sappi and PG Group (Pty) Ltd. Their median headcount is 513. Half of them were founded in 1953 or later. The most common headquarters are Johannesburg (9), Pretoria (2) and Sandton (2).

This selection of companies in Gauteng primarily comprises established firms in chemical manufacturing, mining, and related industries. Many of these entities, such as S.A.S., Sappi, and PG Group (Pty) Ltd, were founded in the mid-20th century or earlier, indicating a mature industrial base. A significant number are involved in resource transformation, from coal to energy, or raw materials to construction and industrial products.

Key players include S.A.S., which produces liquid fuels and chemicals from coal, and Sappi, a global provider of sustainable woodfibre materials. PG Group (Pty) Ltd is a major integrated glass business, while AECI Mining supplies mining chemicals and explosives. Afrox is a significant supplier of gases and welding products, and Foskor processes phosphate rock. The companies are largely headquartered in cities like Sandton and Johannesburg, forming a concentration of industrial and corporate activity in the region.

🇿🇦 Gauteng · 25 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [S.A.S.](https://www.tamtam.ai/c/sasol) (sasol.com)<br>Produces liquid fuels, chemicals, and electricity from coal. Transforms coal into valuable energy products for various industries. | Chemical Manufacturing | 🇿🇦 Sandton | 31,000 | 1950 |
| 2 | [Sappi](https://www.tamtam.ai/c/sappi) (sappi.com)<br>Global provider of sustainable materials from woodfibre, supporting a circular economy with products for various industries in over 150 countries | Paper and Forest Product Manufacturing | 🇿🇦 Rosebank | 7,962 | 1936 |
| 3 | [PG Group (Pty) Ltd](https://www.tamtam.ai/c/pg-group-pty-ltd) (pggroup.co.za)<br>A leading integrated glass business in Southern Africa, manufacturing, distributing, and installing automotive & building glass, aluminium doors & windows, and window film solutions | Glass, Ceramics and Concrete Manufacturing | 🇿🇦 Bedfordview | 2,773 | 1897 |
| 4 | [AECI Mining](https://www.tamtam.ai/c/aeci-mining) (aecimining.com)<br>Provider of state-of-the-art mining chemicals and explosives to optimize mineral processing and enhance safety, efficiency, and sustainability in mining operations globally | Mining | 🇿🇦 Ekurhuleni | 2,463 |  |
| 5 | [Afrox](https://www.tamtam.ai/c/afrox) (afrox.co.za)<br>Supplier of gases and welding products, services, and technologies to healthcare, hospitality, food, beverage, energy, mining, steel, and automotive sectors. | Chemical Manufacturing | 🇿🇦 Sandton | 1,749 | 1927 |
| 6 | [Foskor](https://www.tamtam.ai/c/foskor) (foskor.co.za)<br>Vertically integrated phosphate producer in South Africa, processing phosphate rock concentrate to stimulate crop yields and improve agricultural productivity | Mining | 🇿🇦 Johannesburg | 1,467 | 1951 |
| 7 | [Sasol Synfuels International (Pty) Ltd.](https://www.tamtam.ai/c/sasol-synfuels-international-pty-ltd) (sasol.com)<br>An oil and energy company based in South Africa that specializes in synthetic fuel production and international operations Located in Johannesburg | Oil and Gas | 🇿🇦 Johannesburg | 1,410 | 1950 |
| 8 | [Afrimat](https://www.tamtam.ai/c/afrimat) (afrimat.co.za)<br>A leading player in mining and materials, listed on the Main Board JSE Limited in the 'Construction & Building Materials' sector | Mining | 🇿🇦 Tyger Valley | 1,378 |  |
| 9 | [Omnia Holdings](https://www.tamtam.ai/c/omnia-holdings) (omnia.co.za)<br>A diversified chemicals group providing innovative solutions for agriculture, mining, and chemical industries, promoting responsible chemical use and cleaner technologies | Agriculture, Construction, Mining Machinery Manufacturing | 🇿🇦 Johannesburg | 1,065 | 1953 |
| 10 | [PG Bison](https://www.tamtam.ai/c/pg-bison) (pgbison.co.za)<br>The company offers a range of wood-panel products for various living spaces, prioritizing excellence, sustainability, and local manufacturing | Paper and Forest Product Manufacturing | 🇿🇦 Boksburg | 708 | 1978 |
| 11 | [Sephaku Cement](https://www.tamtam.ai/c/sephaku-cement) (sephakucement.co.za)<br>Sephaku Cement produces top-quality, affordable cement and clinker in South Africa, prioritizing ethics, transparency, and environmental sustainability in their manufacturing process | Construction | 🇿🇦 Southdowns/Centurion | 633 | 2006 |
| 12 | [Rand Refinery Limited](https://www.tamtam.ai/c/rand-refinery-limited) (randrefinery.com)<br>Leading precious metals refiner focusing on responsible sourcing, smelting, assaying, vaulting, and logistics while emphasizing quality and sustainability. | Manufacturing | 🇿🇦 Germiston | 523 | 1920 |
| 13 | [Mpact Plastic Containers](https://www.tamtam.ai/c/mpact-plastic-containers) (mpcsa.co.za)<br>Manufacturer of environmentally friendly plastic containers, leading the industry with unique solutions, quality accreditation, and a commitment to sustainability and reducing carbon footprint | Packaging and Containers Manufacturing | 🇿🇦 Johannesburg | 513 | 2006 |
| 14 | [PROXA Water](https://www.tamtam.ai/c/proxa-water) (proxawater.com)<br>A leading water treatment specialist with global reach, serving various industries with integrated solutions, innovative products, and a focus on sustainability and excellence | Environmental Services | 🇿🇦 Woodmead | 428 | 1986 |
| 15 | [NCP CHLORCHEM](https://www.tamtam.ai/c/ncp-chlorchem) (ncp.co.za)<br>Leading manufacturer of chlorine, caustic soda, and chlor alkali derivatives serving local and overseas markets in various industries with a focus on quality products and services | Chemical Manufacturing | 🇿🇦 Kempton Park | 413 |  |
| 16 | [SAFRIPOL](https://www.tamtam.ai/c/safripol) (safripol.com)<br>A leading polymer producer in South Africa, Safripol serves local, African, and global markets with High-Density Polyethylene, Polyethylene Terephthalate, and Polypropylene | Packaging and Containers Manufacturing | 🇿🇦 Bryanston | 400 |  |
| 17 | [Wispeco Aluminium](https://www.tamtam.ai/c/wispeco-aluminium) (wispeco.co.za)<br>Leading African supplier of aluminium extrusions, offering quality products, competitive pricing, technical support, and eco-friendly solutions, owned by Remgro (Pty) Ltd | Industrial Machinery Manufacturing | 🇿🇦 Johannesburg | 356 |  |
| 18 | [Norcros SA](https://www.tamtam.ai/c/norcros-sa) (norcros.co.za)<br>A leading manufacturer and retailer of ceramic tiles, adhesives, sanitaryware, and plumbing materials, with a focus on quality, innovation, and customer service | Retail | 🇿🇦 Clayville | 325 |  |
| 19 | [AEL Intelligent Blasting](https://www.tamtam.ai/c/ael-intelligent-blasting) (aelworld.com)<br>Specializing in blasting solutions for mining, quarrying, and construction, we offer top-tier products and services using cutting-edge technologies for various applications | Mining & Metals | 🇿🇦 Johannesburg | 307 |  |
| 20 | [Watercare Innovations](https://www.tamtam.ai/c/watercare-innovations) (watercareinnovations.com)<br>Watercare Innovations specializes in water purification solutions, offering tailored water treatment chemicals and engineered plants for potable and wastewater purification worldwide | Environmental Services | 🇿🇦 Randfontein | 209 | 1983 |
| 21 | [FUCHS LUBRICANTS SA](https://www.tamtam.ai/c/fuchs-lubricants-sa) (fuchs.com)<br>Global Group with German roots, leading independent supplier of lubricants for various sectors, offering over 10,000 products and custom-made solutions for diverse applications | Chemical Manufacturing | 🇿🇦 Johannesburg | 186 | 1931 |
| 22 | [WILEC](https://www.tamtam.ai/c/wilec) (wilec.co.za)<br>Africa's largest manufacturer and supplier of materials and solutions for electric rotating machines, transformers, motors, and general industries with technical support from global partners | Appliances, Electrical, and Electronics Manufacturing | 🇿🇦 Johannesburg | 185 | 1953 |
| 23 | [Medal Paints](https://www.tamtam.ai/c/medal-paints) (medalpaints.co.za)<br>Manufacturing decorative, industrial, and waterproofing coatings alongside supporting products for thirty years while actively engaging in social community projects for disadvantaged groups. | Executive Offices | 🇿🇦 Johannesburg | 182 |  |
| 24 | [Promac Paints](https://www.tamtam.ai/c/promac-paints) (promacpaints.co.za)<br>Independent manufacturer of decorative and light industrial coatings, cleaners, primers, and sealers, emphasizing innovation, efficiency, expertise, research, and family spirit | Chemical Manufacturing | 🇿🇦 Pretoria | 181 | 1992 |
| 25 | [SINVAC](https://www.tamtam.ai/c/sinvac) (sinvac.co.za)<br>Leading plastic product manufacturer and supplier specializing in HDPE, LDPE, and LLDPE production through extrusion, rotational moulding, and plastics fabrication for various industries | Plastics Manufacturing | 🇿🇦 Pretoria | 150 | 1962 |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.

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## The same list elsewhere in South Africa

- [Chemical companies in South Africa](https://www.tamtam.ai/l/chemical-companies-south-africa) (36)

## The same list elsewhere

- [Chemical companies in the world](https://www.tamtam.ai/l/chemical-companies-in-the-world) (6,503)
- [Chemical companies in Africa](https://www.tamtam.ai/l/chemical-companies-in-africa) (120)

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Source: https://www.tamtam.ai/l/chemical-companies-gauteng