Company lists · Data refreshed September 2026

Top 25 Carbon neutral contractors based in South Africa

Name: Carbon neutral contractors based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 463 companies tracked

RevenueBase identified 463 carbon neutral contractors headquartered in South Africa as of September 2026 and tracks 2,834 professional contacts across them, including 819 with verified work emails. Johannesburg is the largest hub.

This list covers carbon neutral contractors headquartered in 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 16, 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 16, 2026 86% judged on-target in blind review

463Companies

2,834Contacts tracked

819Verified emails

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The 25 largest carbon neutral contractors based in South Africa

Ranked by team size

Top 25 of 463 carbon neutral contractors based in South Africa, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to carbon neutral contractors: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Romh Consulting	Indirect evidence	City Of Tshwane, South AfricaHQ checked Sep 16, 2026	51-200	106 contacts →
	Indirect evidence “We are a team of Professional Engineers, Technical specialists and Project Managers organised to provide specialized consulting and management services within the Engineering and…” Source: RevenueBase Database · checked Sep 16, 2026
2	Sutherland	Indirect evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	51-200	102 contacts →
	Indirect evidence “Sutherland is a multi-disciplinary consulting engineering company with offices in Cape Town, Johannesburg, Durban, and Nairobi, Multidisciplinary sub-disciplines include…” Source: RevenueBase Database · checked Sep 16, 2026
3	CITRA	Indirect evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	51-200	87 contacts →
	Indirect evidence “The worldwide lack of appropriate housing and climate change is an opportunity to change the building industry through innovation.” Source: RevenueBase Database · checked Sep 16, 2026
4	Alumo Energy	Indirect evidence	Pretoria, South AfricaHQ checked Sep 16, 2026	201-500	79 contacts →
	Indirect evidence “We're not your average solar company.” Source: RevenueBase Database · checked Sep 16, 2026
5	CSV Construction PTY LTD	Indirect evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	201-500	60 contacts →
	Indirect evidence “CSV Construction (Pty) Ltd is a leading diversified Civil Engineering Company with a track record of over 30 years of delivering quality works to clients in Civil and Concrete…” Source: RevenueBase Database · checked Sep 16, 2026
6	R&l Architects	Indirect evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	54 contacts →
	Indirect evidence “R&L Architects (Pty) Ltd was founded by Douglas Roberts in 1964.” Source: RevenueBase Database · checked Sep 16, 2026
7	Terramanzi Group	Indirect evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	49 contacts →
	Indirect evidence “Terramanzi Group is a leading Cape Town based multi-disciplinary environmental firm.” Source: RevenueBase Database · checked Sep 16, 2026
8	Tcrpv Architects	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	39 contacts →
	Indirect evidence “TCRPV Architects is a professional South African based design firm.” Source: RevenueBase Database · checked Sep 16, 2026
9	Solid Green	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	36 contacts →
	Indirect evidence “Solid Green Consulting is a young and energetic company enthusiastic about advancing sustainability in the built environment.” Source: RevenueBase Database · checked Sep 16, 2026
10	Emergent Energy	Indirect evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	34 contacts →
	Indirect evidence “At Emergent Energy, we believe energy investments should be clear, simple, and designed for long-term value.” Source: RevenueBase Database · checked Sep 16, 2026
11	MLB Architects PTY LTD	Indirect evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	32 contacts →
	Indirect evidence “Established in 1987, MLB Architects has garnered a distinguished reputation over its 36-year history for cultivating a well-resourced and adept professional team, characterised by…” Source: RevenueBase Database · checked Sep 16, 2026
12	Leafyspace	Indirect evidence	Kempton Park, South AfricaHQ checked Sep 16, 2026	11-50	31 contacts →
	Indirect evidence “LeafySpace (Pty) Ltd was established in 2010, and have branches located in Gauteng, Cape Town, Durban, Limpopo, and Eastern Cape.” Source: RevenueBase Database · checked Sep 16, 2026
13	Solar Energy Africa	Indirect evidence	Stellenbosch, South AfricaHQ checked Sep 16, 2026	11-50	27 contacts →
	Indirect evidence “Solar Energy Africa is a multi-disciplinary engineering company and renewable energy solutions provider.” Source: RevenueBase Database · checked Sep 16, 2026
14	Onezero Consulting	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	26 contacts →
	Indirect evidence “Since our inception in 2010, we coined the term Greenovative and have aimed to be pioneers in the electrical and electronic building.” Source: RevenueBase Database · checked Sep 16, 2026
15	Voltas Technologies South Africa	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	25 contacts →
	Indirect evidence “A transversal vision, due to the diversity of our product offering, enables VOLTAS Technologies to propose innovative integrated solutions for your projects, leading to…” Source: RevenueBase Database · checked Sep 16, 2026
16	A19 Consulting Engineers	Indirect evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	23 contacts →
	Indirect evidence “Over the past 20+ years we have successfully delivered services to clients in a wide variety of residential, commercial, and industrial projects with scopes ranging from small to…” Source: RevenueBase Database · checked Sep 16, 2026
17	Triviron Project Management PTY LTD	Indirect evidence	Midrand, South AfricaHQ checked Sep 16, 2026	11-50	20 contacts →
	Indirect evidence “Triviron Project Management (Pty) Ltd is a consultant within the built environment with skills and expertise in Development Management, Engineering Consulting, Construction…” Source: RevenueBase Database · checked Sep 16, 2026
18	Brundtland Consulting	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	1-10	19 contacts →
	Indirect evidence “Brundtland Consulting is a South African management consulting firm specialized in climate change, green economy and renewable energy.” Source: RevenueBase Database · checked Sep 16, 2026
19	Kongiwe	Indirect evidence	Bryanston, South AfricaHQ checked Sep 16, 2026	11-50	19 contacts →
	Indirect evidence “Founded in 2016, Kongiwe is a contemporary consultancy with the purpose ‘To solve environmental and social challenges by providing expert bespoke solutions that promote current…” Source: RevenueBase Database · checked Sep 16, 2026
20	Ijika Services	Indirect evidence	Durban, South AfricaHQ checked Sep 16, 2026	11-50	18 contacts →
	Indirect evidence “IJika Services is a Professional Electrical, Solar & Mechanical Engineering, Procurement and Construction (EPC) Company.” Source: RevenueBase Database · checked Sep 16, 2026
21	Ecolution Consulting	Indirect evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	17 contacts →
	Indirect evidence “Ecolution Consulting is a green building consultancy demonstrating that responsible design is the most practical and efficient way to build for the future.” Source: RevenueBase Database · checked Sep 16, 2026
22	Power Partners Group	Indirect evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	17 contacts →
	Indirect evidence “Power Partners Group was established in 2019.” Source: RevenueBase Database · checked Sep 16, 2026
23	Lombard Consulting Engineers LCE	Indirect evidence	Durbanville, South AfricaHQ checked Sep 16, 2026	11-50	17 contacts →
	Indirect evidence “A leading mechanical and electrical building services consulting firm in the construction industry, especially in the medical and commercial sectors.” Source: RevenueBase Database · checked Sep 16, 2026
24	Renu Solar	Indirect evidence	Hillcrest, South AfricaHQ checked Sep 16, 2026	11-50	17 contacts →
	Indirect evidence “ESTABLISHED IN 2008 With over a decade of experience, Renu Solar brings a wealth of knowledge and expertise to the renewable industry.” Source: RevenueBase Database · checked Sep 16, 2026
25	The Energy Gurus	Indirect evidence	City Of Tshwane, South AfricaHQ checked Sep 16, 2026	51-200	16 contacts →
	Indirect evidence “The Energy Gurus (Pty) Ltd.” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: carbon neutral contractors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names carbon neutral contractors.
Partial evidence: Its own public description names part of carbon neutral contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name carbon neutral contractors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 463 carbon neutral contractors based in South Africa

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Carbon neutral contractors based in South Africa at a glance

As of Sep 16, 2026

28.9%Verified-email coverage

6.1Average contacts per company

1-10Median size (employees)

17.3%Largest-city concentration · Johannesburg

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

289

11-50

142

51-200

201-500

Email recency for this list is measured worldwide rather than for South Africa, so it is reported there. Company counts and contact totals on this page are exact for South Africa, over 463 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 carbon neutral contractors, 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 South Africa whose own description of what they do matches “carbon neutral contractors”. 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 carbon neutral contractors), 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 carbon neutral contractors, and records with no verified work email. Companies headquartered outside South Africa 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, 819 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 16, 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.

Carbon neutral contractors by metro

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 carbon neutral contractors, 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 carbon neutral contractors are there based in South Africa?

RevenueBase identified 463 carbon neutral contractors headquartered in 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?

Romh Consulting, headquartered in City Of Tshwane, tops this list with the largest team on record.

Which city has the most carbon neutral contractors?

Johannesburg leads with 80 headquartered companies, followed by Cape Town (74) and Pretoria (54).

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 819 verified decision-maker contacts tracked across these 463 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 16, 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.