Company lists · Data refreshed September 2026

Top 13 Architectural technology firms based in Johannesburg, South Africa

RevenueBase identified 36 architectural technology firms headquartered in Johannesburg, South Africa as of September 2026 and tracks 251 professional contacts across them, including 74 with verified work emails. Across South Africa, Johannesburg is the largest hub for this category.

This list covers architectural technology firms headquartered in Johannesburg, South Africa, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 30, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 30, 2026 86% judged on-target in blind review
36Companies
251Contacts tracked
74Verified emails
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The 13 largest architectural technology firms based in Johannesburg, South Africa

Ranked by team size
Top 13 of 36 architectural technology firms based in Johannesburg, South Africa, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to architectural technology firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceJohannesburg, South AfricaHQ checked Sep 30, 202651-20084 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 30, 2026
2Partial evidenceJohannesburg, South AfricaHQ checked Sep 30, 202611-5024 contacts →

Partial evidence

“We allow our clients’ passion to flourish by removing the frustrations associated with introducing new technologies and workflows.”

Source: RevenueBase Database · checked Sep 30, 2026
3Partial evidenceJohannesburg, South AfricaHQ checked Sep 30, 202611-5013 contacts →

Partial evidence

“BI Architects & Space Planners areas of specialisation are • Architectural Services • Commercial Space Planning / Facilities Planning • Outsourced Client Site Space Planning •…”

Source: RevenueBase Database · checked Sep 30, 2026
4Partial evidenceJohannesburg, South AfricaHQ checked Sep 30, 202611-5013 contacts →

Partial evidence

“Messaris Wapenaar Cole Architects is a firmly established, architectural practice operating out of Johannesburg, South Africa with subsidiary companies in Cape Town, Athens and…”

Source: RevenueBase Database · checked Sep 30, 2026
5Partial evidenceJohannesburg, South AfricaHQ checked Sep 30, 202611-508 contacts →

Partial evidence

“Capex Projects: Your Partner in Industrial & Commercial Property Development We provide comprehensive Project Management, Architectural, and BIM Services tailored to the…”

Source: RevenueBase Database · checked Sep 30, 2026
6Indirect evidenceJohannesburg, South AfricaHQ checked Sep 30, 20261-105 contacts →

Indirect evidence

“Residential, Retail, and Commercial Architects Specialist Consulting Architects Based in Johannesburg”

Source: RevenueBase Database · checked Sep 30, 2026
7Indirect evidenceJohannesburg, South AfricaHQ checked Sep 30, 202611-504 contacts →

Indirect evidence

“Sustainabuild is a unique group of companies that make up a construction tech ‘stack’ of complementary next-generation materials and systems that together enable holistic and…”

Source: RevenueBase Database · checked Sep 30, 2026
8Indirect evidenceJohannesburg, South AfricaHQ checked Sep 30, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026
9Indirect evidenceJohannesburg, South AfricaHQ checked Sep 30, 20261-104 contacts →

Indirect evidence

“SpaceWorx has concentrated on the Corporate Office Sector, where high levels of change are the norm.”

Source: RevenueBase Database · checked Sep 30, 2026
10Partial evidenceJohannesburg, South AfricaHQ checked Sep 30, 20261-103 contacts →

Partial evidence

“Entity Architects is a full-service architectural firm providing design development, project documentation, and contract administration.”

Source: RevenueBase Database · checked Sep 30, 2026
11Partial evidenceJohannesburg, South AfricaHQ checked Sep 30, 20261-102 contacts →

Partial evidence

“Architecture and Interiors big and small, private and commercial, residential or corporate, we have the passion, drive and experience to undertake any challenge in the built…”

Source: RevenueBase Database · checked Sep 30, 2026
12Indirect evidenceJohannesburg, South AfricaHQ checked Sep 30, 20261-102 contacts →

Indirect evidence

“A collaboration of like-minded designers who have extensive local and international experience in all aspects of I N T E R I O R A R C H I T E C T U R A L D E S I G N.”

Source: RevenueBase Database · checked Sep 30, 2026
13Indirect evidenceJohannesburg, South AfricaHQ checked Sep 30, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026

Showing 13 of 36 architectural technology firms based in Johannesburg, South Africa

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Architectural technology firms based in Johannesburg, South Africa at a glance

As of Sep 30, 2026
29.5%Verified-email coverage
7.0Average contacts per company
1-10Median size (employees)
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
21
11-50
11
51-200
4

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 36 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among architectural technology firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Johannesburg, South Africa whose own description of what they do matches “architectural technology firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names architectural technology firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among architectural technology firms, and records with no verified work email. Companies headquartered outside Johannesburg are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 74 across the full list. 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 September 30, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Architectural technology firms by metro in South Africa

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names architectural technology firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many architectural technology firms are there based in Johannesburg, South Africa?

RevenueBase identified 36 architectural technology firms headquartered in Johannesburg, South Africa as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Osmond Lange Architects, headquartered in Johannesburg, tops this list with the largest team on record.

Which city in South Africa has the most architectural technology firms?

Johannesburg leads South Africa with 36 headquartered companies, followed by Cape Town (29) and Pretoria (26).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 74 verified decision-maker contacts tracked across these 36 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 30, 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 Smart Search, 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.