Company lists · Data refreshed November 2026

Top 25 Rainwater harvesting system designers worldwide

RevenueBase identified 246 company matches for rainwater harvesting system designers worldwide as of November 2026 and tracks 1,375 professional contacts across them, including 460 with verified work emails. The United States is the largest market and Austin the largest hub.

This list covers company matches for rainwater harvesting system designers 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 rainwater harvesting system designers 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
246Companies
1,375Contacts tracked
460Verified emails
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The 25 largest rainwater harvesting system designers worldwide

Ranked by team size
Top 25 of 246 company matches for rainwater harvesting system designers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSprimont, BelgiumHQ recorded Nov 6, 202651-200112 contacts →

Exact match

“In business since 1965, the Belgian company Eloy Water specialises in wastewater treatment and rainwater harvesting for both households, small and large communities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSouth AfricaHQ recorded Nov 6, 2026201-50084 contacts →

Exact match

“At JoJo, we are dedicated to providing all-inclusive water solutions that enhance the quality of life.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMexico City, MexicoHQ recorded Nov 6, 202611-5063 contacts →

Exact match

“En Isla Urbana detonamos la captación de lluvia como una alternativa autónoma, sostenible y resiliente para el abasto de agua.#CaptaLaLluvia At Isla Urbana we are detonating…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchDandenong South, AustraliaHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“Syfon Systems are global leaders in syphonic roof drainage and rainwater harvesting, with over 30 years experience.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAichach, GermanyHQ recorded Nov 6, 2026201-50051 contacts →

Exact match

“MEA Group is a global player in innovative solutions for sustainable building and water management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchKirklington, United KingdomHQ recorded Nov 6, 202611-5048 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
7Exact matchBanbury, United KingdomHQ recorded Nov 6, 202651-20046 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
8Exact matchMaynooth, IrelandHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“Capcon Engineering are rainwater drainage and harvesting specialists providing design consultation and sub-contracting services on large-scale construction projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchDelft, NetherlandsHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“FieldFactors’ mission is to make cities green, healthy and future-proof by turning rain into a reliable local source for freshwater supply.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchRoanoke, VA, United StatesHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“RMS provides complete rainwater harvesting systems and solutions for residential, commercial, industrial and agricultural projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchCumming, CA, United StatesHQ recorded Nov 6, 202611-5020 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
12Exact matchGordon, AustraliaHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Optimal Stormwater specialises in the design and construction of Stormwater Treatment, Stormwater Harvesting, Operation and Maintenance and GPT/SQID auditing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202611-5018 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
14Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5017 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
15Exact matchMios, FranceHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Notre entreprise spécialiste des solutions de récupération d'eau de pluie est en forte croissance depuis 2005.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchPorto Recanati, ItalyHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Muflesystem is committed to designing and producing the best solutions to water management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSemenyih, MalaysiaHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“We are the specialist of Rainwater Drainage and Harvesting System with over 30 years of experiences and providing a complete rainwater system solution to all building and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchStockport, United KingdomHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Hydro WMS specialise in the supply and installation of water management systems that reduce surface water waste, prevent localised flooding and meet the legislative requirements…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBarueri, BrazilHQ recorded Nov 6, 202611-5013 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
20Exact matchThane, IndiaHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Established in the year 2005 Water Field Technologies Pvt Ltd, is one of the market leaders in rainwater harvesting and water conservation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchHinsdale, IL, United StatesHQ recorded Nov 6, 20261-1010 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
22Exact matchUnited KingdomHQ recorded Nov 6, 202611-5010 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
23Exact matchHallam, AustraliaHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Our goal at ASC Water Tanks is to help increase Australian’s independence in water resource, and reducing the reliance on government, council or private organizations supply.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAhmedabad, IndiaHQ recorded Nov 6, 202651-2009 contacts →

Exact match

“Furaat is a design-led company founded by entrepreneur brothers Habil and Yusufi Attarwala, built on a singular mission, making rainwater harvesting smarter, simpler, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchUnited StatesHQ recorded Nov 6, 202611-509 contacts →

Exact match

“locally owned and operated rainwater management company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 246 rainwater harvesting system designers worldwide

See the full list, filter by size, metro and specialty, and access 460 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Rainwater harvesting system designers worldwide at a glance

As of Nov 6, 2026
33.5%Verified-email coverage
5.6Average contacts per company
1-10Median size (employees)
1.2%Largest-city concentration · Austin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
163
11-50
57
51-200
19
201-500
3

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 rainwater harvesting system designers are linked below.
What qualifies
Company records worldwide whose business descriptions match “rainwater harvesting system designers” 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 460 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.

Rainwater harvesting system designers by location

2 lists · largest first

Every Rainwater harvesting system designers 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 “rainwater harvesting system designers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many rainwater harvesting system designers are there worldwide?

RevenueBase identified 246 company matches for rainwater harvesting system designers 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?

Eloy Water tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most rainwater harvesting system designers?

The United States leads with 30 companies, followed by the Netherlands (25). Every rainwater harvesting system designers list by country and city is linked on this page.

Which city has the most rainwater harvesting system designers?

Austin leads with 3 company records, followed by Hyderabad (3) and Pune (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 460 professional contacts with verified work emails tracked across these 246 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.

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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.