Company lists · Data refreshed September 2026
Top 25 Sustainability consulting services based in Johannesburg, South Africa
RevenueBase identified 88 company matches for sustainability consulting services associated with Johannesburg, South Africa as of September 2026 and tracks 573 professional contacts across them, including 176 with verified work emails. Across South Africa, Johannesburg is the largest hub for this category.
This list covers company matches for sustainability consulting services 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 September 22, 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.
The 25 largest sustainability consulting services based in Johannesburg, South Africa
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 90 contacts → | ||||
Exact match “We are a niche firm that drives investment, commercial excellence, developmental strategies, and sustainability.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 2 | 36 contacts → | ||||
Exact match “Solid Green Consulting is a young and energetic company enthusiastic about advancing sustainability in the built environment.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 3 | 25 contacts → | ||||
Exact match “A transversal vision, due to the diversity of our product offering, enables VOLTAS Technologies to propose innovative integrated solutions for your projects, leading to…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 4 | 21 contacts → | ||||
Exact match “Through undertaking a broad range of environmental studies, Savannah Environmental has gained extensive experience with regards to environmental legislation requirements and…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 5 | 19 contacts → | ||||
Exact match “Promethium Carbon is a specialist advisory firm focusing on carbon and climate change.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 6 | 19 contacts → | ||||
Exact match “Brundtland Consulting is a South African management consulting firm specialized in climate change, green economy and renewable energy.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 7 | 15 contacts → | ||||
Exact match “Environmental Impact Management Services (Pty) Ltd (EIMS) was founded in 1993 and has steadily grown to be a significant player in the environmental management consulting industry…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 8 | 14 contacts → | ||||
Exact match “At Gravitas, we collaborate with our clients to reduce their environmental liability.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 9 | 13 contacts → | ||||
Exact match “Our specialist area of focus is the assessment of multifaceted projects, including the establishment of linear developments, bulk infrastructure, power generation and…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 10 | 12 contacts → | ||||
Exact match “EP3 Environmental (Pty) Ltd was established by Eben van Schalkwyk in 2013 and is a multi-disciplinary consulting firm that provides Environmental and Sustainability consulting…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 11 | 9 contacts → | ||||
Exact match “We are an Environmental Compliance and ESG Advisory firm offering environmental compliance and ESG services to the built infrastructure sector.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 12 | 9 contacts → | ||||
Exact match “Delta Carbon is an integrated energy services and decarbonisation advisory company.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 13 | 9 contacts → | ||||
Exact match “At Rokiwaste, we’re not just managing waste through minimisation-we’re rethinking it.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 14 | 6 contacts → | ||||
Exact match “WARBURTON ATTORNEYS is a Johannesburg (South Africa) based law firm providing specialist sustainability legal services to the South African and international markets.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 15 | 5 contacts → | ||||
Exact match “Elizabeth Kent Consulting is a writing, communications and reporting firm with a sustainability specialism.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 16 | 5 contacts → | ||||
Exact match “Greenfield denotes pristine resources with untapped potential, operating at peak capacity.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 17 | 4 contacts → | ||||
Exact match “Founded in 2006, e-Motion Consulting in its true essence represents energy in motion.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 18 | 4 contacts → | ||||
Exact match “We pride ourselves in assisting businesses to drive sustainable growth through Impact Investing and helping NGOs carry out the phenomenal work they do to strengthen our…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 19 | 4 contacts → | ||||
Exact match “VMG Consultants have been awarded Mechanical Engineering Consulting company of the year, two years running.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 20 | 3 contacts → | ||||
Exact match “We supply complete green solutions, saving costs and maximising profits for our clients.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 21 | 3 contacts → | ||||
Exact match “Kwadiwa Africa offers consulting services within the water, environmental management and engineering service sectors.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 22 | 3 contacts → | ||||
Exact match “We design rigorous, data-driven frameworks that help investors, funds, and enterprises strike the right balance between financial performance and measurable impact.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 23 | 2 contacts → | ||||
Exact match “Misplon Green Building Consulting specialises in assisting property investors who are orientating their property portfolios towards “going green” and who need help in taking…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 24 | 2 contacts → | ||||
Exact match “SDG Innovations is a digital innovation consultancy that bridges the gap between sustainability and technology.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 25 | 1 contacts → | ||||
Exact match “Risk Valley offers specialist consulting services simplifying your risk management and compliance needs.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “sustainability consulting services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 88 sustainability consulting services based in Johannesburg, South Africa
See the full list, filter by size, metro and specialty, and access 176 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Sustainability consulting services based in Johannesburg, South Africa at a glance
As of Sep 22, 2026Companies by employee count
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 88 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 “sustainability consulting services” 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 176 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 September 22, 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.
Sustainability consulting services by metro in South Africa
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 “sustainability consulting services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many sustainability consulting services are there based in Johannesburg, South Africa?
RevenueBase identified 88 company matches for sustainability consulting services associated with Johannesburg, South Africa as of September 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?
Siyakha Consulting 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 sustainability consulting services?
Johannesburg leads South Africa with 88 company records, followed by Cape Town (79) and Pretoria (33).
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 176 professional contacts with verified work emails tracked across these 88 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 September 22, 2026.
Ready to reach these companies? Verified emails and direct dials for all 88 sustainability consulting services based in Johannesburg, South Africa. Start with a free account, no credit card.
Download this list →Related lists
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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.
More company lists
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Company intelligence · public preview
Top 25 sustainability consulting services based in Johannesburg, South Africa
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 88 matching company records for sustainability consulting services based in Johannesburg, South Africa, with 573 tracked contacts and 176 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 22, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 sustainability consulting services based in Johannesburg, South Africa
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Siyakha Consultingsiyakha.co.zaHQ: Johannesburg, South AfricaReported employees: 51-200 | Johannesburg, South Africa | 51-200 | Exact match | 90 contacts → |
“We are a niche firm that drives investment, commercial excellence, developmental strategies, and sustainability.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Solid Greensolidgreen.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 36 contacts → |
“Solid Green Consulting is a young and energetic company enthusiastic about advancing sustainability in the built environment.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Voltas Technologies South Africavoltastechnologies.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 25 contacts → |
“A transversal vision, due to the diversity of our product offering, enables VOLTAS Technologies to propose innovative integrated solutions for your projects, leading to…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Savannah Environmental PTY LTDsavannahsa.comHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 21 contacts → |
“Through undertaking a broad range of environmental studies, Savannah Environmental has gained extensive experience with regards to environmental legislation requirements and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Promethium Carbonpromethium.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 19 contacts → |
“Promethium Carbon is a specialist advisory firm focusing on carbon and climate change.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Brundtland Consultingbrundtland.co.zaHQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 19 contacts → |
“Brundtland Consulting is a South African management consulting firm specialized in climate change, green economy and renewable energy.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 15 contacts → |
“Environmental Impact Management Services (Pty) Ltd (EIMS) was founded in 1993 and has steadily grown to be a significant player in the environmental management consulting industry…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Gravitas Mineralsgravitasminerals.comHQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 14 contacts → |
“At Gravitas, we collaborate with our clients to reduce their environmental liability.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Nsovo Environmental Consultingnsovo.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 13 contacts → |
“Our specialist area of focus is the assessment of multifaceted projects, including the establishment of linear developments, bulk infrastructure, power generation and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Ep3 Environmentalep3.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 12 contacts → |
“EP3 Environmental (Pty) Ltd was established by Eben van Schalkwyk in 2013 and is a multi-disciplinary consulting firm that provides Environmental and Sustainability consulting…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  NTC Group PTY LTDntcgroup.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 9 contacts → |
“We are an Environmental Compliance and ESG Advisory firm offering environmental compliance and ESG services to the built infrastructure sector.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Delta Carbondeltacarbon.co.zaHQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 9 contacts → |
“Delta Carbon is an integrated energy services and decarbonisation advisory company.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Rokiwaste PTY LTDrokiwaste.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 9 contacts → |
“At Rokiwaste, we’re not just managing waste through minimisation-we’re rethinking it.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Warburton Attorneys INCwarburtons.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 6 contacts → |
“WARBURTON ATTORNEYS is a Johannesburg (South Africa) based law firm providing specialist sustainability legal services to the South African and international markets.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Elizabeth Kent Consultingelizabeth-kent.comHQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 5 contacts → |
“Elizabeth Kent Consulting is a writing, communications and reporting firm with a sustainability specialism.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Greenfield Sustainable Groupgreenfieldgroup.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 5 contacts → |
“Greenfield denotes pristine resources with untapped potential, operating at peak capacity.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  E-Motion Consulting PTY LTDe-motionconsulting.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 4 contacts → |
“Founded in 2006, e-Motion Consulting in its true essence represents energy in motion.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  NSI Consultantsnsiconsultants.comHQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 4 contacts → |
“We pride ourselves in assisting businesses to drive sustainable growth through Impact Investing and helping NGOs carry out the phenomenal work they do to strengthen our…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  VMG Consultantsvmgconsultants.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 4 contacts → |
“VMG Consultants have been awarded Mechanical Engineering Consulting company of the year, two years running.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  The Green-Cothegreen-co.comHQ: Johannesburg, South AfricaReported employees: 201-500 | Johannesburg, South Africa | 201-500 | Exact match | 3 contacts → |
“We supply complete green solutions, saving costs and maximising profits for our clients.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Kwadiwa Africakwadiwaafrica.co.zaHQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 3 contacts → |
“Kwadiwa Africa offers consulting services within the water, environmental management and engineering service sectors.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  NIA Impact Investniaimpactinvest.comHQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 3 contacts → |
“We design rigorous, data-driven frameworks that help investors, funds, and enterprises strike the right balance between financial performance and measurable impact.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Misplonmisplon.co.zaHQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 2 contacts → |
“Misplon Green Building Consulting specialises in assisting property investors who are orientating their property portfolios towards “going green” and who need help in taking…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  SDG Innovationssdgi.co.zaHQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 2 contacts → |
“SDG Innovations is a digital innovation consultancy that bridges the gap between sustainability and technology.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Risk Valleyriskvalley.comHQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 1 contacts → |
“Risk Valley offers specialist consulting services simplifying your risk management and compliance needs.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 88 company matches
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Sustainability consulting services: dataset insights
September 22, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
88 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 88 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 22, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Sustainability consulting services by metro in South Africa
Questions about this company list
What does Exact match mean for sustainability consulting services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many sustainability consulting services did RevenueBase find based in Johannesburg, South Africa?
The saved snapshot records 88 matching company records, 573 tracked contacts and 176 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 22, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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- Sustainability consulting services based in Campinas, Brazil
- Sustainability consulting services based in Curitiba, Brazil
- Sustainability consulting services based in Fortaleza, Brazil
- Sustainability consulting services based in Piracicaba, Brazil
- Sustainability consulting services based in Porto Alegre, Brazil
Cite this list
RevenueBase Data Team. Top 25 sustainability consulting services based in Johannesburg, South Africa. Snapshot: September 22, 2026. https://revenuebase.ai/companies/sustainability-consulting-services/south-africa/johannesburg.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
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Company intelligence · public preview
Top 25 sustainability consulting services based in Johannesburg, South Africa
RevenueBase records 88 matching company records for sustainability consulting services based in Johannesburg, South Africa, with 573 tracked contacts and 176 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 22, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 sustainability consulting services based in Johannesburg, South Africa
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Siyakha Consultingsiyakha.co.za HQ: Johannesburg, South AfricaReported employees: 51-200 | Johannesburg, South Africa | 51-200 | Exact match | 90 contacts → |
“We are a niche firm that drives investment, commercial excellence, developmental strategies, and sustainability.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Solid Greensolidgreen.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 36 contacts → |
“Solid Green Consulting is a young and energetic company enthusiastic about advancing sustainability in the built environment.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Voltas Technologies South Africavoltastechnologies.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 25 contacts → |
“A transversal vision, due to the diversity of our product offering, enables VOLTAS Technologies to propose innovative integrated solutions for your projects, leading to…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Savannah Environmental PTY LTDsavannahsa.com HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 21 contacts → |
“Through undertaking a broad range of environmental studies, Savannah Environmental has gained extensive experience with regards to environmental legislation requirements and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Promethium Carbonpromethium.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 19 contacts → |
“Promethium Carbon is a specialist advisory firm focusing on carbon and climate change.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Brundtland Consultingbrundtland.co.za HQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 19 contacts → |
“Brundtland Consulting is a South African management consulting firm specialized in climate change, green economy and renewable energy.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 15 contacts → |
“Environmental Impact Management Services (Pty) Ltd (EIMS) was founded in 1993 and has steadily grown to be a significant player in the environmental management consulting industry…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Gravitas Mineralsgravitasminerals.com HQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 14 contacts → |
“At Gravitas, we collaborate with our clients to reduce their environmental liability.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Nsovo Environmental Consultingnsovo.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 13 contacts → |
“Our specialist area of focus is the assessment of multifaceted projects, including the establishment of linear developments, bulk infrastructure, power generation and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Ep3 Environmentalep3.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 12 contacts → |
“EP3 Environmental (Pty) Ltd was established by Eben van Schalkwyk in 2013 and is a multi-disciplinary consulting firm that provides Environmental and Sustainability consulting…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | NTC Group PTY LTDntcgroup.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 9 contacts → |
“We are an Environmental Compliance and ESG Advisory firm offering environmental compliance and ESG services to the built infrastructure sector.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Delta Carbondeltacarbon.co.za HQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 9 contacts → |
“Delta Carbon is an integrated energy services and decarbonisation advisory company.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Rokiwaste PTY LTDrokiwaste.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 9 contacts → |
“At Rokiwaste, we’re not just managing waste through minimisation-we’re rethinking it.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Warburton Attorneys INCwarburtons.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 6 contacts → |
“WARBURTON ATTORNEYS is a Johannesburg (South Africa) based law firm providing specialist sustainability legal services to the South African and international markets.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Elizabeth Kent Consultingelizabeth-kent.com HQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 5 contacts → |
“Elizabeth Kent Consulting is a writing, communications and reporting firm with a sustainability specialism.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Greenfield Sustainable Groupgreenfieldgroup.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 5 contacts → |
“Greenfield denotes pristine resources with untapped potential, operating at peak capacity.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | E-Motion Consulting PTY LTDe-motionconsulting.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 4 contacts → |
“Founded in 2006, e-Motion Consulting in its true essence represents energy in motion.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | NSI Consultantsnsiconsultants.com HQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 4 contacts → |
“We pride ourselves in assisting businesses to drive sustainable growth through Impact Investing and helping NGOs carry out the phenomenal work they do to strengthen our…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | VMG Consultantsvmgconsultants.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 4 contacts → |
“VMG Consultants have been awarded Mechanical Engineering Consulting company of the year, two years running.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | The Green-Cothegreen-co.com HQ: Johannesburg, South AfricaReported employees: 201-500 | Johannesburg, South Africa | 201-500 | Exact match | 3 contacts → |
“We supply complete green solutions, saving costs and maximising profits for our clients.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Kwadiwa Africakwadiwaafrica.co.za HQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 3 contacts → |
“Kwadiwa Africa offers consulting services within the water, environmental management and engineering service sectors.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | NIA Impact Investniaimpactinvest.com HQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 3 contacts → |
“We design rigorous, data-driven frameworks that help investors, funds, and enterprises strike the right balance between financial performance and measurable impact.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Misplonmisplon.co.za HQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 2 contacts → |
“Misplon Green Building Consulting specialises in assisting property investors who are orientating their property portfolios towards “going green” and who need help in taking…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | SDG Innovationssdgi.co.za HQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 2 contacts → |
“SDG Innovations is a digital innovation consultancy that bridges the gap between sustainability and technology.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Risk Valleyriskvalley.com HQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 1 contacts → |
“Risk Valley offers specialist consulting services simplifying your risk management and compliance needs.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 88 company matches
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Sustainability consulting services: dataset insights
September 22, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
88 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 88 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 22, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Sustainability consulting services by metro in South Africa
Questions about this company list
What does Exact match mean for sustainability consulting services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many sustainability consulting services did RevenueBase find based in Johannesburg, South Africa?
The saved snapshot records 88 matching company records, 573 tracked contacts and 176 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 22, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 sustainability consulting services based in Johannesburg, South Africa. Snapshot: September 22, 2026. https://revenuebase.ai/companies/sustainability-consulting-services/south-africa/johannesburg.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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