Top 10 Construction Companies in Johannesburg & Gauteng (2026)

Johannesburg and Gauteng are home to some of South Africa’s most established construction companies. From large commercial developments and residential housing projects to roads, bridges and industrial infrastructure, the province supports a diverse construction industry.

Whether you’re looking for an experienced building contractor, researching civil engineering companies or exploring potential construction industry employers, choosing the right company starts with understanding its expertise and track record.

This 2026 guide highlights 10 prominent construction companies operating in Johannesburg or the wider Gauteng region, covering their main services, specialisations and official websites.

The selection includes major multidisciplinary construction groups as well as contractors specialising in housing, civil engineering, infrastructure and commercial building projects.

Top Construction Companies in Johannesburg & Gauteng at a Glance

Note: This is an editorial selection rather than a ranking by annual revenue, market capitalisation or project value. Companies are numbered for ease of reference. Some operate nationally rather than being headquartered in Johannesburg. Readers should confirm current services and project availability directly with each contractor.

1. WBHO Construction

Specialisations: Building construction, civil engineering, roads and earthworks.

WBHO is one of South Africa’s best-known construction groups, with a history dating back to 1970. The company operates across several construction disciplines, making it a significant participant in the country’s building and infrastructure sectors.

Its core activities include commercial building projects, civil engineering works and roads and earthworks. This broad capability allows WBHO to undertake projects requiring multiple construction disciplines.

WBHO has an established Johannesburg presence and operates elsewhere in South Africa and internationally.

For clients planning substantial commercial or infrastructure developments, the company’s multidisciplinary capabilities make it an important contractor to research.

Official website: https://www.wbho.co.za/

2. Stefanutti Stocks

Specialisations: Infrastructure development, commercial and industrial construction, civil engineering and specialist construction services.

Stefanutti Stocks is a multidisciplinary construction group operating in South Africa and other parts of sub-Saharan Africa.

The company provides services across a broad range of construction disciplines, including building, infrastructure and specialised engineering work.

Its construction capabilities cover industrial and commercial developments, as well as technically demanding infrastructure projects.

Stefanutti Stocks has offices in Chloorkop, Kempton Park, placing it within the wider Johannesburg metropolitan construction market.

The company reports a Construction Industry Development Board (CIDB) Category 9 contractor registration, indicating eligibility to tender for projects without a CIDB tender-value limit in the relevant registered categories.

Official website: https://stefanuttistocks.com/

3. Concor

Specialisations: Building construction, infrastructure development and opencast mining services.

Concor is an established South African construction and infrastructure contractor with a history extending back more than a century through its predecessor businesses.

The company undertakes building and civil infrastructure projects and also provides opencast mining-related services.

Its portfolio demonstrates experience in technically complex construction environments, including major commercial developments and infrastructure projects.

Concor has been involved in developments such as Oxford Parks in Johannesburg, illustrating its presence in Gauteng’s commercial construction sector.

The company is relevant to clients researching contractors with experience in large-scale building and infrastructure delivery.

Official website: https://www.concor.co.za/

4. Motheo Construction Group

Specialisations: Social housing, commercial building, civil engineering, water solutions and electrical works.

Motheo Construction Group was established in 1997 by Dr Thandi Ndlovu and has become an established name in South African construction.

The group is particularly recognised for its involvement in social housing, although its services extend well beyond residential developments.

Motheo operates across building construction, civil engineering, water-related infrastructure and electrical works.

Its head office is located in Randburg, Johannesburg.

The company also places emphasis on skills development and training through its construction academy.

Motheo is worth considering when researching companies involved in housing development, public infrastructure and broader construction services.

Official website: https://motheogroup.co.za/

5. Enza Construction

Specialisations: Commercial building, civil engineering, housing, roads and turnkey construction solutions.

Enza Construction is a South African construction company providing integrated property and infrastructure services.

Its capabilities include property development, design, construction, project management and related services.

The company undertakes commercial developments, healthcare facilities, educational buildings, housing projects and civil engineering works.

Its civil engineering division focuses on activities such as roads, bulk earthworks and infrastructure services.

Enza maintains a Johannesburg office in Bryanston and also operates in other parts of South Africa.

Its combination of building and civil engineering services makes it relevant to clients seeking integrated project delivery.

Official website: https://enzacon.co.za/

6. Trencon Construction

Specialisations: Commercial building, civil engineering and mining infrastructure.

Trencon Construction has operated since 1995 and undertakes projects across the building and civil engineering sectors.

Its building portfolio covers developments such as office blocks, shopping centres, industrial facilities, residential developments, airports and schools.

The company also has experience in bridges, infrastructure and other civil engineering projects.

Trencon reports CIDB gradings of 9GB and 9CE, reflecting its registration in general building and civil engineering categories.

Its office is located in Edenvale, Gauteng.

For organisations planning commercial buildings or substantial civil engineering works, Trencon is another established contractor to investigate.

Official website: https://trencon.co.za/

7. Murray & Dickson Construction Group

Specialisations: Civil engineering, pipelines, roads, earthworks, industrial construction and renewable energy infrastructure.

Murray & Dickson Construction Group, commonly known as M&D Construction, provides engineering and construction services across several specialist sectors.

Its capabilities include civil structures, pipelines, roads and earthworks, tanks and vessels, marine construction and industrial infrastructure.

The company also undertakes work connected to renewable energy and bulk water infrastructure.

M&D maintains offices in Bryanston, Sandton.

Its technical focus makes it particularly relevant to clients seeking contractors for water infrastructure, industrial facilities and complex civil engineering projects.

Official website: https://mdconstruction.co.za/

8. Radon Projects

Specialisations: Commercial building, industrial construction, civil engineering and renovations.

Radon Projects is a South African construction and civil engineering company established in 1990.

The company provides construction services for commercial and industrial developments, alongside civil engineering work.

Its service offering also includes painting and renovation work.

Radon emphasises project delivery, construction quality and client-focused solutions.

The company is a useful addition to this guide because it represents contractors working across both building construction and civil engineering rather than only major national infrastructure projects.

Official website: https://www.radon.co.za/

9. Raubex Group

Specialisations: Road construction, earthworks, infrastructure development and construction materials.

Raubex is a major South African infrastructure development and construction materials group.

Established in 1974, the company has developed operations across roads, earthworks, materials supply and related infrastructure services.

Its work supports transport infrastructure and other large construction projects.

Raubex is included because its national operations are relevant to Gauteng’s wider infrastructure market, although it should not be described as a Johannesburg-headquartered company.

For readers researching major road and infrastructure contractors serving South Africa, Raubex is an important company to consider.

Official website: https://raubex.com/

10. GVK-Siya Zama

Specialisations: Building construction, commercial developments, refurbishment and construction project delivery.

GVK-Siya Zama is an established South African construction company specialising in building construction, refurbishment and related construction services.

The company undertakes projects across various sectors, including commercial, institutional and public infrastructure developments.

GVK-Siya Zama has a regional office in Linbro Park, Johannesburg, making it a relevant contractor for construction projects in Gauteng.

With an established presence in the South African construction industry, the company is worth considering for clients seeking experienced building contractors for commercial construction and refurbishment projects.

GVK-Siya Zama Gauteng Office Details

Address: 59 Ronald Avenue, Linbro Park, Johannesburg, 2065
Telephone: (011) 608 0313
Email: gauteng@siyazama.co.za
Official website: https://www.siyazama.co.za/

GVK-Siya Zama’s Johannesburg presence makes it a suitable inclusion