Company lists · Data refreshed November 2026
Top 25 Greywater system contractors worldwide
RevenueBase identified 186 company matches for greywater system contractors worldwide as of November 2026 and tracks 1,167 professional contacts across them, including 369 with verified work emails. The United States is the largest market and San Francisco the largest hub.
This list covers company matches for greywater system contractors worldwide, 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 November 6, 2026. Country and city lists for greywater system contractors follow the table.
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 greywater system contractors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 91 contacts → | ||||
Exact match “Incorporated in 1977 and based in Singapore, Hitachi Aqua-Tech has built a strong reputation as a specialist in water management solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 48 contacts → | ||||
Exact match “The UK's market leading suppliers of Rainwater Harvesting, Greywater Recycling, and Water Reuse Systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 46 contacts → | ||||
Exact match “Graf UK Ltd was formed following the acquisition of SCP Water Management Ltd by Graf GmbH, the European market leaders in rainwater harvesting.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 33 contacts → | ||||
Exact match “As the team behind the Ozzi Kleen product range, we strive to engineer, produce and maintain the highest level of quality not only for the pride we take in delivering reliable…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 29 contacts → | ||||
Exact match “At WCSEE we collaborate closely with our clients to design and deliver reliable, robust, and future-proofed wastewater systems tailored to site specific requirements.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 29 contacts → | ||||
Exact match “Water | Wastewater | Greywater | Stormwater BioMicrobics, SeptiTech, and Scienco/FAST manufacture integrated, sustainable, water utilization treatment systems land and sea.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 27 contacts → | ||||
Exact match “Trusted, Innovative, Water Solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 23 contacts → | ||||
Exact match “AquaTech Innovation est une entreprise de la GreenTech, basée à Montpellier et labellisée Greentech Innovation par le Ministère de la transition écologique.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 20 contacts → | ||||
Exact match “RainHarvest Systems is your comprehensive resource for residential and commercial water harvesting, treatment and reuse products and systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 19 contacts → | ||||
Exact match “At Streamkey Inc, we specialize in custom engineered water and wastewater systems for a variety of commercial and residential applications.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 18 contacts → | ||||
Exact match “At Aquacell, we don't think we should waste water, so we take the waste out of wastewater.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 18 contacts → | ||||
Exact match “Innovative Water Solutions LLC is a full-service water conservation system design / build company that specializes in integrated water demand and supply management for residential…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 17 contacts → | ||||
Exact match “Aquality Trading & Consulting Ltd is one of the longest established and leading suppliers of Rainwater Harvesting and Greywater Recycling systems in the UK and France.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 15 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 13 contacts → | ||||
Exact match “We offer a range of products and services designed to help you use less water, waste less water and save more water.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 13 contacts → | ||||
Exact match “O'Reilly Oakstown provides an environmentally responsible wastewater treatment solution for both homes and businesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 13 contacts → | ||||
Exact match “Atuamos no mercado de Irrigação há mais de 35 anos, com os seguintes serviços- Projeto de Sistemas de Irrigação - Implantação Sistemas de Irrigação para jardins residenciais…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 11 contacts → | ||||
Exact match “ByWater Services are a company specialising in commercial water treatment systems, wash water reclamation systems and other related equipment including design, installation and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 10 contacts → | ||||
Exact match “For over 30 years, ADC Water has provided solutions to help our clients win.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 10 contacts → | ||||
Exact match “At Water Harvesting Solutions (Wahaso), we are a team that brings experience, skill and passion about water conservation to every client project.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 10 contacts → | ||||
Exact match “Sustainable water solutions, including residential and commercial automatic irrigation systems, SUDS, Greywater Recycling Systems, Pump Stations, Borehole pump systems, Rainwater…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 10 contacts → | ||||
Exact match “Shaping the Future, One Drop at a Time At SAPL, we don’t just treat water, we engineer smarter ways to protect it.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 9 contacts → | ||||
Exact match “Crusader Utah is a licensed water treatment and general contractor serving the Wasatch Front.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 9 contacts → | ||||
Exact match “JalSevak Solutions is an Indian startup in wastewater management.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 8 contacts → | ||||
Exact match “Wastewater treatment and reuse solutions for off-grid residences, as well as commercial, community, and institutional projects.” Recorded in the RevenueBase company graph · Nov 6, 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 “greywater system contractors”. 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 186 greywater system contractors worldwide
See the full list, filter by size, metro and specialty, and access 369 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Greywater system contractors worldwide at a glance
As of Nov 6, 2026Companies by employee count
Email recency is reported on each country list linked below.
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.
- Coverage
- Every country. Country and city lists for greywater system contractors are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “greywater system contractors” 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. 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 369 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 November 6, 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.
Greywater system contractors by location
1 lists · largest firstEvery Greywater system contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 “greywater system contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many greywater system contractors are there worldwide?
RevenueBase identified 186 company matches for greywater system contractors worldwide as of November 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?
Hitachi Aqua-Tech Engineering Pte. LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most greywater system contractors?
The United States leads with 42 companies. Every greywater system contractors list by country and city is linked on this page.
Which city has the most greywater system contractors?
San Francisco leads with 3 company records, followed by San Jose (3) and Sao Paulo (3).
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 369 professional contacts with verified work emails tracked across these 186 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 November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 186 greywater system contractors worldwide. Start with a free account, no credit card.
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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
Company intelligence · public preview
Top 25 greywater system contractors worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 186 matching company records for greywater system contractors worldwide, with 1,167 tracked contacts and 369 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: November 6, 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 greywater system contractors worldwide
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 |  Hitachi Aqua-Tech Engineering Pte. LTDhitachi-aqt.comHQ: SingaporeReported employees: 51-200 | Singapore | 51-200 | Exact match | 91 contacts → |
“Incorporated in 1977 and based in Singapore, Hitachi Aqua-Tech has built a strong reputation as a specialist in water management solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Stormsaver LTDstormsaver.comHQ: Kirklington, United KingdomReported employees: 11-50 | Kirklington, United Kingdom | 11-50 | Exact match | 48 contacts → |
“The UK's market leading suppliers of Rainwater Harvesting, Greywater Recycling, and Water Reuse Systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Graf UK LTDgrafuk.co.ukHQ: Banbury, United KingdomReported employees: 51-200 | Banbury, United Kingdom | 51-200 | Exact match | 46 contacts → |
“Graf UK Ltd was formed following the acquisition of SCP Water Management Ltd by Graf GmbH, the European market leaders in rainwater harvesting.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Ozzi Kleenozzikleen.comHQ: Kunda Park, AustraliaReported employees: 51-200 | Kunda Park, Australia | 51-200 | Exact match | 33 contacts → |
“As the team behind the Ozzi Kleen product range, we strive to engineer, produce and maintain the highest level of quality not only for the pride we take in delivering reliable…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Wcsee Wastewater Marlowe Environmental Serviceswcs-group.co.ukHQ: Gloucester, United KingdomReported employees: 11-50 | Gloucester, United Kingdom | 11-50 | Exact match | 29 contacts → |
“At WCSEE we collaborate closely with our clients to design and deliver reliable, robust, and future-proofed wastewater systems tailored to site specific requirements.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Biomicrobics, Inc.biomicrobics.comHQ: Lenexa, MO, United StatesReported employees: 51-200 | Lenexa, MO, United States | 51-200 | Exact match | 29 contacts → |
“Water | Wastewater | Greywater | Stormwater BioMicrobics, SeptiTech, and Scienco/FAST manufacture integrated, sustainable, water utilization treatment systems land and sea.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Watersmartwatersmart.co.nzHQ: Auckland, New ZealandReported employees: 11-50 | Auckland, New Zealand | 11-50 | Exact match | 27 contacts → |
“Trusted, Innovative, Water Solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Aquatech Innovationaquatech-innovation.comHQ: Clapiers, FranceReported employees: 11-50 | Clapiers, France | 11-50 | Exact match | 23 contacts → |
“AquaTech Innovation est une entreprise de la GreenTech, basée à Montpellier et labellisée Greentech Innovation par le Ministère de la transition écologique.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Rainharvest Systemsrainharvest.comHQ: Cumming, CA, United StatesReported employees: 11-50 | Cumming, CA, United States | 11-50 | Exact match | 20 contacts → |
“RainHarvest Systems is your comprehensive resource for residential and commercial water harvesting, treatment and reuse products and systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Streamkey INCstreamkey.comHQ: Cincinnati, OH, United StatesReported employees: 11-50 | Cincinnati, OH, United States | 11-50 | Exact match | 19 contacts → |
“At Streamkey Inc, we specialize in custom engineered water and wastewater systems for a variety of commercial and residential applications.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Aquacell PTY LTDaquacell.com.auHQ: Milsons Point, AustraliaReported employees: 11-50 | Milsons Point, Australia | 11-50 | Exact match | 18 contacts → |
“At Aquacell, we don't think we should waste water, so we take the waste out of wastewater.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Innovative Water Solutions LLCwatercache.comHQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 18 contacts → |
“Innovative Water Solutions LLC is a full-service water conservation system design / build company that specializes in integrated water demand and supply management for residential…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Aquality Trading & Consulting LTDaqua-lity.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 17 contacts → |
“Aquality Trading & Consulting Ltd is one of the longest established and leading suppliers of Rainwater Harvesting and Greywater Recycling systems in the UK and France.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Greyter Water Systems, INCgreyter.com HQ: Barrie, ON, CanadaReported employees: 11-50 | Barrie, ON, Canada | 11-50 | Exact match | 15 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 |  Ecoprod Techniqueecoprod.co.ukHQ: Woking, United KingdomReported employees: 1-10 | Woking, United Kingdom | 1-10 | Exact match | 13 contacts → |
“We offer a range of products and services designed to help you use less water, waste less water and save more water.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  O'reilly Oakstown LTDoreillyoakstown.comHQ: Oakstown, United KingdomReported employees: 11-50 | Oakstown, United Kingdom | 11-50 | Exact match | 13 contacts → |
“O'Reilly Oakstown provides an environmentally responsible wastewater treatment solution for both homes and businesses.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Irrigamaticirrigamatic.com.brHQ: Barueri, BrazilReported employees: 11-50 | Barueri, Brazil | 11-50 | Exact match | 13 contacts → |
“Atuamos no mercado de Irrigação há mais de 35 anos, com os seguintes serviços- Projeto de Sistemas de Irrigação - Implantação Sistemas de Irrigação para jardins residenciais…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Bywater Services LTDbywaterservices.co.ukHQ: Coalville, United KingdomReported employees: 11-50 | Coalville, United Kingdom | 11-50 | Exact match | 11 contacts → |
“ByWater Services are a company specialising in commercial water treatment systems, wash water reclamation systems and other related equipment including design, installation and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  ADC Wateradcwater.comHQ: Tacoma, AZ, United StatesReported employees: 1-10 | Tacoma, AZ, United States | 1-10 | Exact match | 10 contacts → |
“For over 30 years, ADC Water has provided solutions to help our clients win.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Wahasowahaso.comHQ: Hinsdale, IL, United StatesReported employees: 1-10 | Hinsdale, IL, United States | 1-10 | Exact match | 10 contacts → |
“At Water Harvesting Solutions (Wahaso), we are a team that brings experience, skill and passion about water conservation to every client project.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Watermatic LTDwatermaticltd.co.ukHQ: United KingdomReported employees: 11-50 | United Kingdom | 11-50 | Exact match | 10 contacts → |
“Sustainable water solutions, including residential and commercial automatic irrigation systems, SUDS, Greywater Recycling Systems, Pump Stations, Borehole pump systems, Rainwater…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Swaran Aquatech Private Limitedswaranaqua.comHQ: Faridabad, IndiaReported employees: 51-200 | Faridabad, India | 51-200 | Exact match | 10 contacts → |
“Shaping the Future, One Drop at a Time At SAPL, we don’t just treat water, we engineer smarter ways to protect it.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Crusader Water Systemscrusaderutah.comHQ: Orem, UT, United StatesReported employees: 11-50 | Orem, UT, United States | 11-50 | Exact match | 9 contacts → |
“Crusader Utah is a licensed water treatment and general contractor serving the Wasatch Front.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Jalsevak Solutionsjalsevak.inHQ: Pune, IndiaReported employees: 1-10 | Pune, India | 1-10 | Exact match | 9 contacts → |
“JalSevak Solutions is an Indian startup in wastewater management.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  DBO Internationaldbointernational.comHQ: Sherbrooke, QC, CanadaReported employees: 11-50 | Sherbrooke, QC, Canada | 11-50 | Exact match | 8 contacts → |
“Wastewater treatment and reuse solutions for off-grid residences, as well as commercial, community, and institutional projects.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 186 company matches
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Greywater system contractors: dataset insights
November 6, 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
181 records in the displayed employee bands.
5 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 country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 186 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: November 6, 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 ↗
Greywater system contractors by location
1 lists · largest firstEvery Greywater system contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for greywater system contractors?
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 greywater system contractors did RevenueBase find worldwide?
The saved snapshot records 186 matching company records, 1,167 tracked contacts and 369 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: November 6, 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 greywater system contractors worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/greywater-system-contractors.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 greywater system contractors worldwide
RevenueBase records 186 matching company records for greywater system contractors worldwide, with 1,167 tracked contacts and 369 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: November 6, 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 greywater system contractors worldwide
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 | Hitachi Aqua-Tech Engineering Pte. LTDhitachi-aqt.com HQ: SingaporeReported employees: 51-200 | Singapore | 51-200 | Exact match | 91 contacts → |
“Incorporated in 1977 and based in Singapore, Hitachi Aqua-Tech has built a strong reputation as a specialist in water management solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Stormsaver LTDstormsaver.com HQ: Kirklington, United KingdomReported employees: 11-50 | Kirklington, United Kingdom | 11-50 | Exact match | 48 contacts → |
“The UK's market leading suppliers of Rainwater Harvesting, Greywater Recycling, and Water Reuse Systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Graf UK LTDgrafuk.co.uk HQ: Banbury, United KingdomReported employees: 51-200 | Banbury, United Kingdom | 51-200 | Exact match | 46 contacts → |
“Graf UK Ltd was formed following the acquisition of SCP Water Management Ltd by Graf GmbH, the European market leaders in rainwater harvesting.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Ozzi Kleenozzikleen.com HQ: Kunda Park, AustraliaReported employees: 51-200 | Kunda Park, Australia | 51-200 | Exact match | 33 contacts → |
“As the team behind the Ozzi Kleen product range, we strive to engineer, produce and maintain the highest level of quality not only for the pride we take in delivering reliable…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Wcsee Wastewater Marlowe Environmental Serviceswcs-group.co.uk HQ: Gloucester, United KingdomReported employees: 11-50 | Gloucester, United Kingdom | 11-50 | Exact match | 29 contacts → |
“At WCSEE we collaborate closely with our clients to design and deliver reliable, robust, and future-proofed wastewater systems tailored to site specific requirements.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Biomicrobics, Inc.biomicrobics.com HQ: Lenexa, MO, United StatesReported employees: 51-200 | Lenexa, MO, United States | 51-200 | Exact match | 29 contacts → |
“Water | Wastewater | Greywater | Stormwater BioMicrobics, SeptiTech, and Scienco/FAST manufacture integrated, sustainable, water utilization treatment systems land and sea.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Watersmartwatersmart.co.nz HQ: Auckland, New ZealandReported employees: 11-50 | Auckland, New Zealand | 11-50 | Exact match | 27 contacts → |
“Trusted, Innovative, Water Solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Aquatech Innovationaquatech-innovation.com HQ: Clapiers, FranceReported employees: 11-50 | Clapiers, France | 11-50 | Exact match | 23 contacts → |
“AquaTech Innovation est une entreprise de la GreenTech, basée à Montpellier et labellisée Greentech Innovation par le Ministère de la transition écologique.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Rainharvest Systemsrainharvest.com HQ: Cumming, CA, United StatesReported employees: 11-50 | Cumming, CA, United States | 11-50 | Exact match | 20 contacts → |
“RainHarvest Systems is your comprehensive resource for residential and commercial water harvesting, treatment and reuse products and systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Streamkey INCstreamkey.com HQ: Cincinnati, OH, United StatesReported employees: 11-50 | Cincinnati, OH, United States | 11-50 | Exact match | 19 contacts → |
“At Streamkey Inc, we specialize in custom engineered water and wastewater systems for a variety of commercial and residential applications.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Aquacell PTY LTDaquacell.com.au HQ: Milsons Point, AustraliaReported employees: 11-50 | Milsons Point, Australia | 11-50 | Exact match | 18 contacts → |
“At Aquacell, we don't think we should waste water, so we take the waste out of wastewater.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Innovative Water Solutions LLCwatercache.com HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 18 contacts → |
“Innovative Water Solutions LLC is a full-service water conservation system design / build company that specializes in integrated water demand and supply management for residential…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Aquality Trading & Consulting LTDaqua-lity.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 17 contacts → |
“Aquality Trading & Consulting Ltd is one of the longest established and leading suppliers of Rainwater Harvesting and Greywater Recycling systems in the UK and France.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Greyter Water Systems, INCgreyter.com HQ: Barrie, ON, CanadaReported employees: 11-50 | Barrie, ON, Canada | 11-50 | Exact match | 15 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 | Ecoprod Techniqueecoprod.co.uk HQ: Woking, United KingdomReported employees: 1-10 | Woking, United Kingdom | 1-10 | Exact match | 13 contacts → |
“We offer a range of products and services designed to help you use less water, waste less water and save more water.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | O'reilly Oakstown LTDoreillyoakstown.com HQ: Oakstown, United KingdomReported employees: 11-50 | Oakstown, United Kingdom | 11-50 | Exact match | 13 contacts → |
“O'Reilly Oakstown provides an environmentally responsible wastewater treatment solution for both homes and businesses.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Irrigamaticirrigamatic.com.br HQ: Barueri, BrazilReported employees: 11-50 | Barueri, Brazil | 11-50 | Exact match | 13 contacts → |
“Atuamos no mercado de Irrigação há mais de 35 anos, com os seguintes serviços- Projeto de Sistemas de Irrigação - Implantação Sistemas de Irrigação para jardins residenciais…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Bywater Services LTDbywaterservices.co.uk HQ: Coalville, United KingdomReported employees: 11-50 | Coalville, United Kingdom | 11-50 | Exact match | 11 contacts → |
“ByWater Services are a company specialising in commercial water treatment systems, wash water reclamation systems and other related equipment including design, installation and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | ADC Wateradcwater.com HQ: Tacoma, AZ, United StatesReported employees: 1-10 | Tacoma, AZ, United States | 1-10 | Exact match | 10 contacts → |
“For over 30 years, ADC Water has provided solutions to help our clients win.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Wahasowahaso.com HQ: Hinsdale, IL, United StatesReported employees: 1-10 | Hinsdale, IL, United States | 1-10 | Exact match | 10 contacts → |
“At Water Harvesting Solutions (Wahaso), we are a team that brings experience, skill and passion about water conservation to every client project.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Watermatic LTDwatermaticltd.co.uk HQ: United KingdomReported employees: 11-50 | United Kingdom | 11-50 | Exact match | 10 contacts → |
“Sustainable water solutions, including residential and commercial automatic irrigation systems, SUDS, Greywater Recycling Systems, Pump Stations, Borehole pump systems, Rainwater…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Swaran Aquatech Private Limitedswaranaqua.com HQ: Faridabad, IndiaReported employees: 51-200 | Faridabad, India | 51-200 | Exact match | 10 contacts → |
“Shaping the Future, One Drop at a Time At SAPL, we don’t just treat water, we engineer smarter ways to protect it.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Crusader Water Systemscrusaderutah.com HQ: Orem, UT, United StatesReported employees: 11-50 | Orem, UT, United States | 11-50 | Exact match | 9 contacts → |
“Crusader Utah is a licensed water treatment and general contractor serving the Wasatch Front.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Jalsevak Solutionsjalsevak.in HQ: Pune, IndiaReported employees: 1-10 | Pune, India | 1-10 | Exact match | 9 contacts → |
“JalSevak Solutions is an Indian startup in wastewater management.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | DBO Internationaldbointernational.com HQ: Sherbrooke, QC, CanadaReported employees: 11-50 | Sherbrooke, QC, Canada | 11-50 | Exact match | 8 contacts → |
“Wastewater treatment and reuse solutions for off-grid residences, as well as commercial, community, and institutional projects.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 186 company matches
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Greywater system contractors: dataset insights
November 6, 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
181 records in the displayed employee bands.
5 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 country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 186 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: November 6, 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 ↗
Greywater system contractors by location
1 lists · largest firstEvery Greywater system contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for greywater system contractors?
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 greywater system contractors did RevenueBase find worldwide?
The saved snapshot records 186 matching company records, 1,167 tracked contacts and 369 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: November 6, 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 greywater system contractors worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/greywater-system-contractors.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗