Company lists · Data refreshed September 2026
Top 20 Water engineering firms based in Johannesburg, South Africa
RevenueBase identified 55 company matches for water engineering firms associated with Johannesburg, South Africa as of September 2026 and tracks 932 professional contacts across them, including 297 with verified work emails. Across South Africa, Johannesburg is the largest hub for this category.
This list covers company matches for water engineering firms 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 21, 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 20 largest water engineering firms based in Johannesburg, South Africa
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 228 contacts → | ||||
Exact match “Jones & Wagener is a specialist firm of consulting engineers and scientists based in South Africa.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 175 contacts → | ||||
Exact match “Nafasi Water, formerly known as Aveng Water is a 100% black-owned leading water technology and water utility service company.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 51 contacts → | ||||
Exact match “As the start and end-point for every aspect of water purity and preservation in Africa, our customers, the environment, and preserving nature‘s most precious resource are at the…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 20 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 · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 12 contacts → | ||||
Exact match “Zana Manzi Services specialises in the management, construction, refurbishment, operation and maintenance of water and wastewater systems.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 11 contacts → | ||||
Exact match “Projects & Industrial Engineering is an ISO 9001:2008 accredited professional South African multidisciplinary consulting engineering, design and project Management Company.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 10 contacts → | ||||
Exact match “SYDWALT (Pty) Ltd is an independent engineering Consulting firm, offering a broad range of professional services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 9 contacts → | ||||
Exact match “Telos Water comprises of a team of highly experienced engineers and project managers providing water management solutions to the mining, industrial and municipal sectors.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 8 contacts → | ||||
Exact match “Aqua Earth celebrates more than 20 years of operation and prides itself on having a dynamic team of specialists in Hydrogeology, also identified as Groundwater, as well as…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 7 contacts → | ||||
Exact match “Engineering Excellence Our cutting-edge projects are carried out by a team of talented engineers who want to transform our communities.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 7 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 6 contacts → | ||||
Exact match “Consulting Civil & Structural Engineers specialising in: Factories and Warehouses Apartment building developments Reinforced concrete Houses & residential projects Roads &…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 6 contacts → | ||||
Exact match “Enaqua - Specialist water engineering solutions We design, deliver and consult on specialised water treatment plants focusing mainly on UV, Chlorine Dioxide & Reverse Osmosis…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 5 contacts → | ||||
Exact match “Kwantu Professional Services provides consulting and engineering excellence with the broader goal of enhancing communities.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 4 contacts → | ||||
Exact match “Re-Solve Consulting (Pty) Ltd is a consulting firm dedicated to tackling the complex developmental challenges faced by South Africa and other sub-Saharan countries in the realm of…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 3 contacts → | ||||
Exact match “Thuni Group Engineering Services is a registered water license service provider with the Department of Water and Sanitation.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 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 21, 2026 · View company records in RevenueBase | |||||
| 18 | 2 contacts → | ||||
Exact match “Welcome to Entail Geotechnical Consulting, a pioneering force in tailings engineering, dedicated to revolutionizing tailings storage and management solutions and ensuring…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 2 contacts → | ||||
Exact match “Fourth Element Consulting helps clients understand and manage water risk.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 1 contacts → | ||||
Exact match “KUGA ENGINEERING (Pty) Ltd is an Engineering company operating out of Johannesburg, South Africa.” Recorded in the RevenueBase company graph · Sep 21, 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 “water engineering firms”. 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 20 of 55 water engineering firms based in Johannesburg, South Africa
See the full list, filter by size, metro and specialty, and access 297 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Water engineering firms based in Johannesburg, South Africa at a glance
As of Sep 21, 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 55 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 “water engineering firms” 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 297 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 21, 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.
Water engineering firms 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 “water engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many water engineering firms are there based in Johannesburg, South Africa?
RevenueBase identified 55 company matches for water engineering firms 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?
Jones & Wagener PTY LTD 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 water engineering firms?
Johannesburg leads South Africa with 55 company records, followed by Pretoria (39) and Cape Town (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 297 professional contacts with verified work emails tracked across these 55 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 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 55 water engineering firms 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.
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Company intelligence · public preview
Top 20 water engineering firms 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 55 matching company records for water engineering firms based in Johannesburg, South Africa, with 932 tracked contacts and 297 verified work emails.
This public preview shows 20 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 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 20 water engineering firms 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 |  Jones & Wagener PTY LTDjonesandwagener.comHQ: Johannesburg, South AfricaReported employees: 51-200 | Johannesburg, South Africa | 51-200 | Exact match | 228 contacts → |
“Jones & Wagener is a specialist firm of consulting engineers and scientists based in South Africa.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Nafasi Waternafasiwater.comHQ: Johannesburg, South AfricaReported employees: 201-500 | Johannesburg, South Africa | 201-500 | Exact match | 175 contacts → |
“Nafasi Water, formerly known as Aveng Water is a 100% black-owned leading water technology and water utility service company.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Watericonwatericon.comHQ: Johannesburg, South AfricaReported employees: 51-200 | Johannesburg, South Africa | 51-200 | Exact match | 51 contacts → |
“As the start and end-point for every aspect of water purity and preservation in Africa, our customers, the environment, and preserving nature‘s most precious resource are at the…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Rasnco Consulting Engineersrasnco.co.zaHQ: Johannesburg, South AfricaReported employees: 201-500 | Johannesburg, South Africa | 201-500 | Exact match | 20 contacts → |
“We at Rasnco Investments, are a vibrant and innovative company wholly owned by black Professionals, which was established at the beginning of 2017.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Zana Manzi Serviceszanamanzi.co.za HQ: Johannesburg, South AfricaReported employees: 501-1,000 | Johannesburg, South Africa | 501-1,000 | Exact match | 12 contacts → |
“Zana Manzi Services specialises in the management, construction, refurbishment, operation and maintenance of water and wastewater systems.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Projects And Industrial Engineeringpieng.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 11 contacts → |
“Projects & Industrial Engineering is an ISO 9001:2008 accredited professional South African multidisciplinary consulting engineering, design and project Management Company.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Sydwalt PTY LTDsydwalt.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 10 contacts → |
“SYDWALT (Pty) Ltd is an independent engineering Consulting firm, offering a broad range of professional services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Telos Waterteloswater.co.zaHQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 9 contacts → |
“Telos Water comprises of a team of highly experienced engineers and project managers providing water management solutions to the mining, industrial and municipal sectors.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Aqua Earthaquaearth.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 8 contacts → |
“Aqua Earth celebrates more than 20 years of operation and prides itself on having a dynamic team of specialists in Hydrogeology, also identified as Groundwater, as well as…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Watson Consulting Engineers PTY LTDw-ce.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 7 contacts → |
“Engineering Excellence Our cutting-edge projects are carried out by a team of talented engineers who want to transform our communities.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Asande Projects Consulting And Engineering PTY LTDasandeprojects.co.zaHQ: Johannesburg, South AfricaReported employees: 51-200 | Johannesburg, South Africa | 51-200 | Exact match | 7 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 |  Rosnovanu & Associatesrosnovanu.co.zaHQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 6 contacts → |
“Consulting Civil & Structural Engineers specialising in: Factories and Warehouses Apartment building developments Reinforced concrete Houses & residential projects Roads &…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Enaqua PTY LTDenaqua.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 6 contacts → |
“Enaqua - Specialist water engineering solutions We design, deliver and consult on specialised water treatment plants focusing mainly on UV, Chlorine Dioxide & Reverse Osmosis…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Kwantu Professional Services PTY LTDkwantupro.comHQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 5 contacts → |
“Kwantu Professional Services provides consulting and engineering excellence with the broader goal of enhancing communities.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Re-Solve Consulting PTY LTDre-solve.co.za HQ: Johannesburg, South AfricaReported employees: 51-200 | Johannesburg, South Africa | 51-200 | Exact match | 4 contacts → |
“Re-Solve Consulting (Pty) Ltd is a consulting firm dedicated to tackling the complex developmental challenges faced by South Africa and other sub-Saharan countries in the realm of…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Thuni Groupthunifarms.co.zaHQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 3 contacts → |
“Thuni Group Engineering Services is a registered water license service provider with the Department of Water and Sanitation.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Entail Geotechnical Consultingentailconsulting.comHQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 2 contacts → |
“Welcome to Entail Geotechnical Consulting, a pioneering force in tailings engineering, dedicated to revolutionizing tailings storage and management solutions and ensuring…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Fourth Element Consultingfourthelement.co.zaHQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 2 contacts → |
“Fourth Element Consulting helps clients understand and manage water risk.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Kuga Engineeringkugaeng.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 1 contacts → |
“KUGA ENGINEERING (Pty) Ltd is an Engineering company operating out of Johannesburg, South Africa.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 20 of 55 company matches
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Water engineering firms: dataset insights
September 21, 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
55 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 55 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 21, 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 ↗
Water engineering firms by metro in South Africa
Questions about this company list
What does Exact match mean for water engineering firms?
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 water engineering firms did RevenueBase find based in Johannesburg, South Africa?
The saved snapshot records 55 matching company records, 932 tracked contacts and 297 verified emails. The public preview displays 20 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 21, 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
Water engineering firms by geography
- Water engineering firms based in Brisbane, Australia
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- Water engineering firms based in Sydney, Australia
- Water engineering firms based in Belo Horizonte, Brazil
- Water engineering firms based in Curitiba, Brazil
- Water engineering firms based in Porto Alegre, Brazil
- Water engineering firms based in Rio De Janeiro, Brazil
- Water engineering firms based in Sao Paulo, Brazil
- Water engineering firms based in Calgary, Canada
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Cite this list
RevenueBase Data Team. Top 20 water engineering firms based in Johannesburg, South Africa. Snapshot: September 21, 2026. https://revenuebase.ai/companies/water-engineering-firms/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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Water engineering firms based in Brisbane, Australia
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- Water engineering firms based in Sydney, Australia
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Company intelligence · public preview
Top 20 water engineering firms based in Johannesburg, South Africa
RevenueBase records 55 matching company records for water engineering firms based in Johannesburg, South Africa, with 932 tracked contacts and 297 verified work emails.
This public preview shows 20 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 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 20 water engineering firms 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 | Jones & Wagener PTY LTDjonesandwagener.com HQ: Johannesburg, South AfricaReported employees: 51-200 | Johannesburg, South Africa | 51-200 | Exact match | 228 contacts → |
“Jones & Wagener is a specialist firm of consulting engineers and scientists based in South Africa.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Nafasi Waternafasiwater.com HQ: Johannesburg, South AfricaReported employees: 201-500 | Johannesburg, South Africa | 201-500 | Exact match | 175 contacts → |
“Nafasi Water, formerly known as Aveng Water is a 100% black-owned leading water technology and water utility service company.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Watericonwatericon.com HQ: Johannesburg, South AfricaReported employees: 51-200 | Johannesburg, South Africa | 51-200 | Exact match | 51 contacts → |
“As the start and end-point for every aspect of water purity and preservation in Africa, our customers, the environment, and preserving nature‘s most precious resource are at the…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Rasnco Consulting Engineersrasnco.co.za HQ: Johannesburg, South AfricaReported employees: 201-500 | Johannesburg, South Africa | 201-500 | Exact match | 20 contacts → |
“We at Rasnco Investments, are a vibrant and innovative company wholly owned by black Professionals, which was established at the beginning of 2017.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Zana Manzi Serviceszanamanzi.co.za HQ: Johannesburg, South AfricaReported employees: 501-1,000 | Johannesburg, South Africa | 501-1,000 | Exact match | 12 contacts → |
“Zana Manzi Services specialises in the management, construction, refurbishment, operation and maintenance of water and wastewater systems.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Projects And Industrial Engineeringpieng.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 11 contacts → |
“Projects & Industrial Engineering is an ISO 9001:2008 accredited professional South African multidisciplinary consulting engineering, design and project Management Company.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Sydwalt PTY LTDsydwalt.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 10 contacts → |
“SYDWALT (Pty) Ltd is an independent engineering Consulting firm, offering a broad range of professional services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Telos Waterteloswater.co.za HQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 9 contacts → |
“Telos Water comprises of a team of highly experienced engineers and project managers providing water management solutions to the mining, industrial and municipal sectors.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Aqua Earthaquaearth.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 8 contacts → |
“Aqua Earth celebrates more than 20 years of operation and prides itself on having a dynamic team of specialists in Hydrogeology, also identified as Groundwater, as well as…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Watson Consulting Engineers PTY LTDw-ce.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 7 contacts → |
“Engineering Excellence Our cutting-edge projects are carried out by a team of talented engineers who want to transform our communities.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Asande Projects Consulting And Engineering PTY LTDasandeprojects.co.za HQ: Johannesburg, South AfricaReported employees: 51-200 | Johannesburg, South Africa | 51-200 | Exact match | 7 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 | Rosnovanu & Associatesrosnovanu.co.za HQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 6 contacts → |
“Consulting Civil & Structural Engineers specialising in: Factories and Warehouses Apartment building developments Reinforced concrete Houses & residential projects Roads &…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Enaqua PTY LTDenaqua.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 6 contacts → |
“Enaqua - Specialist water engineering solutions We design, deliver and consult on specialised water treatment plants focusing mainly on UV, Chlorine Dioxide & Reverse Osmosis…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Kwantu Professional Services PTY LTDkwantupro.com HQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 5 contacts → |
“Kwantu Professional Services provides consulting and engineering excellence with the broader goal of enhancing communities.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Re-Solve Consulting PTY LTDre-solve.co.za HQ: Johannesburg, South AfricaReported employees: 51-200 | Johannesburg, South Africa | 51-200 | Exact match | 4 contacts → |
“Re-Solve Consulting (Pty) Ltd is a consulting firm dedicated to tackling the complex developmental challenges faced by South Africa and other sub-Saharan countries in the realm of…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Thuni Groupthunifarms.co.za HQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 3 contacts → |
“Thuni Group Engineering Services is a registered water license service provider with the Department of Water and Sanitation.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Entail Geotechnical Consultingentailconsulting.com HQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 2 contacts → |
“Welcome to Entail Geotechnical Consulting, a pioneering force in tailings engineering, dedicated to revolutionizing tailings storage and management solutions and ensuring…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Fourth Element Consultingfourthelement.co.za HQ: Johannesburg, South AfricaReported employees: 1-10 | Johannesburg, South Africa | 1-10 | Exact match | 2 contacts → |
“Fourth Element Consulting helps clients understand and manage water risk.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Kuga Engineeringkugaeng.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 1 contacts → |
“KUGA ENGINEERING (Pty) Ltd is an Engineering company operating out of Johannesburg, South Africa.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Water engineering firms: dataset insights
September 21, 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
55 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 55 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 21, 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 ↗
Water engineering firms by metro in South Africa
Questions about this company list
What does Exact match mean for water engineering firms?
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 water engineering firms did RevenueBase find based in Johannesburg, South Africa?
The saved snapshot records 55 matching company records, 932 tracked contacts and 297 verified emails. The public preview displays 20 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 21, 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 20 water engineering firms based in Johannesburg, South Africa. Snapshot: September 21, 2026. https://revenuebase.ai/companies/water-engineering-firms/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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