Company lists · Data refreshed October 2026

Top 25 Infrastructure design consultancies based in Johannesburg, South Africa

RevenueBase identified 199 company matches for infrastructure design consultancies associated with Johannesburg, South Africa as of October 2026 and tracks 4,059 professional contacts across them, including 1,195 with verified work emails. Across South Africa, Johannesburg is the largest hub for this category.

This list covers company matches for infrastructure design consultancies associated with Johannesburg, South Africa, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 1, 2026 How this list was built
199Companies
4,059Contacts tracked
1,195Verified emails
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The 25 largest infrastructure design consultancies based in Johannesburg, South Africa

Ranked by team size
Top 25 of 199 company matches for infrastructure design consultancies based in Johannesburg, South Africa, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 2026501-1,000635 contacts →

Exact match

“We are one of the world’s leading professional services firms, uniting our engineering, advisory and science-based expertise to shape communities to advance humanity.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 202651-200254 contacts →

Exact match

“Founded in 1982 with its roots in Johannesburg, South Africa, CKR Consulting Engineers have grown to become one of the leading multidisciplinary engineering firms in Africa, the…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 202651-200228 contacts →

Exact match

“Jones & Wagener is a specialist firm of consulting engineers and scientists based in South Africa.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 2026201-500221 contacts →

Exact match

“JG Afrika, a leading multi-disciplinary engineering and environmental consultancy in South Africa, provides civil and structural engineering and environmental consulting services…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 2026201-500174 contacts →

Exact match

“Bentel Associates International (BAI) was founded in 1960 with the desire to create innovative and practical designs that ensure attractive public environments and achieve…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 2026201-500146 contacts →

Exact match

“Temi Construction was established in 2010 as a fully functional civil engineering and construction firm.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 202651-200103 contacts →

Exact match

“Trans-Africa Projects, specialist in High Voltage Services was established in 1995 as a joint venture between Fluor and Eskom to commercially apply resources and expertise in…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 2026201-50099 contacts →

Exact match

“At Henry Fagan Consulting Engineers & Project Managers, we are a 100% black-owned, design-focused firm with over 40 years of experience delivering innovative, sustainable, and…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 202651-20084 contacts →

Exact match

“Osmond Lange blends architecture, urban design and development management skills to deliver an integrated package of professional services to its clients.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 2026201-50065 contacts →

Exact match

“The RSV group of Linked Enterprises is a group of well-reputed South African-based Project Management and Design (PM & D) consultancies, specialising in the minerals and mining…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 202611-5052 contacts →

Exact match

“Lidwala Consulting Engineers (SA)(Pty) Ltd is a multi-disciplinary medium sized consultancy with its headquarters in Johannesburg, South Africa.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 2026201-50050 contacts →

Exact match

“Light Fibre Infrastructure specialises in long-haul telecommunications and utility infrastructure.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 202651-20049 contacts →

Exact match

“We offer expertise in multi-disciplinary engineering, project management and advisory services.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 202651-20046 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 202611-5039 contacts →

Exact match

“TCRPV Architects is a professional South African based design firm.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 202611-5035 contacts →

Exact match

“Mamadi and Company SA Provides End to End Solutions within Engineering and Environmental, Infrastructure Development, Air Quality management services within the private and Public…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 202651-20030 contacts →

Exact match

“Since 1947, we have built a reputation as cutting-edge visionaries who deliver quality multi-disciplinary projects and consulting services to clients in the mining, engineering…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 202651-20026 contacts →

Exact match

“L&S Consulting (Pty) Ltd is involved in Structural and Civil Consulting Engineering, mainly for the private sector for industrial, retail and office developments.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 202611-5024 contacts →

Exact match

“At Themba we provide professional consulting services in infrastructure development.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 202611-5023 contacts →

Exact match

“Ikemeleng is a seSotho word meaning "stand on your own feet".”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 202611-5022 contacts →

Exact match

“BICT Consult was founded in 2014 with the aim to revolutionise the Broadband ICT market within Southern Africa.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 20261-1022 contacts →

Exact match

“Resultant Consulting Engineers is a dynamic engineering firm specialising in structural design in the mining and heavy industrial sectors.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 202611-5021 contacts →

Exact match

“Instrumented Process and Electrical Systems (IPES) was established as an independent engineering design house in 1988 in Johannesburg, South Africa.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 202611-5020 contacts →

Exact match

“Calliper is a South Africa–headquartered infrastructure development firm delivering high-impact projects across the African continent.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25Exact matchJohannesburg, South AfricaHQ recorded Oct 1, 2026201-50020 contacts →

Exact match

“We at Rasnco Investments, are a vibrant and innovative company wholly owned by black Professionals, which was established at the beginning of 2017.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 25 of 199 infrastructure design consultancies based in Johannesburg, South Africa

See the full list, filter by size, metro and specialty, and access 1,195 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Infrastructure design consultancies based in Johannesburg, South Africa at a glance

As of Oct 1, 2026
29.4%Verified-email coverage
20.4Average contacts per company
11-50Median size (employees)
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
94
11-50
68
51-200
21
201-500
15
501-1,000
1

Email recency for this list is measured across the whole South Africa list rather than for Johannesburg, so it is reported there. Company counts and contact totals on this page are exact for Johannesburg, over 199 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Johannesburg, South Africa whose business descriptions match “infrastructure design consultancies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,195 professional contacts with verified work emails across the full matched dataset. 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 October 1, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “infrastructure design consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many infrastructure design consultancies are there based in Johannesburg, South Africa?

RevenueBase identified 199 company matches for infrastructure design consultancies associated with Johannesburg, South Africa as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

WSP In Africa tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in South Africa has the most infrastructure design consultancies?

Johannesburg leads South Africa with 199 company records, followed by Pretoria (121) and Cape Town (92).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,195 professional contacts with verified work emails tracked across these 199 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 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 SmartSearch, 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.