Company lists · Data refreshed September 2026
Top 25 Roof catchment system providers worldwide
RevenueBase identified 475 roof catchment system providers worldwide as of September 2026 and tracks 3,052 professional contacts across them, including 1,017 with verified work emails. The United Kingdom is the largest market and London the largest hub.
This list covers roof catchment system providers worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026. Country and city lists for roof catchment system providers follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest roof catchment system providers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 231 contacts → | ||||
Strong evidence “Bauder is a manufacturer and supplier of flat roof waterproofing systems, which are complemented by high quality green roof and PV solutions.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 103 contacts → | ||||
Indirect evidence “In business since 1965, the Belgian company Eloy Water specialises in wastewater treatment and rainwater harvesting for both households, small and large communities.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 76 contacts → | ||||
Partial evidence “Specify, manufacture and supply industry-leading waterproofing systems and building protection for over 160 years.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 75 contacts → | ||||
Strong evidence “Die Dachmarke: system solutions for flat roofs You build, we supply the waterproof roofing.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 75 contacts → | ||||
Indirect evidence “At JoJo, we are dedicated to providing all-inclusive water solutions that enhance the quality of life.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 54 contacts → | ||||
Strong evidence “Syfon Systems are global leaders in syphonic roof drainage and rainwater harvesting, with over 30 years experience.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 50 contacts → | ||||
Partial evidence “Garland UK provide high-performance waterproofing systems to commercial, residential, industrial and public sector assets.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 45 contacts → | ||||
Indirect evidence “MEA Group is a global player in innovative solutions for sustainable building and water management.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 44 contacts → | ||||
Indirect evidence “Construction News Specialist Contractor of the Year 2026.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 43 contacts → | ||||
Indirect evidence “Graf UK Ltd was formed following the acquisition of SCP Water Management Ltd by Graf GmbH, the European market leaders in rainwater harvesting.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 39 contacts → | ||||
Indirect evidence “Since 1968, Roberts-McNutt has remained dedicated to restoring, repairing and maintaining the structural integrity and architectural aesthetics of all types of structures…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 34 contacts → | ||||
Partial evidence “Main Phone: 303-892-0400 Fax: 303-825-5988 Toll Free: Bison is committed to providing environmentally responsible rooftop deck and green roof solutions with our trademark customer…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 29 contacts → | ||||
Indirect evidence “At Neal Roofing and Waterproofing, we specialize in providing high-quality, reliable roofing and waterproofing solutions for both residential and commercial properties.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 28 contacts → | ||||
Strong evidence “At SupaLite, we offer a market leading solid roof system for conservatory roofs, that supplies our trade customers with all of the right tools to confidently sell our product…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 27 contacts → | ||||
Indirect evidence “Préoccupée par les enjeux environnementaux Nidaplast Environnement propose des solutions alternatives innovantes pour - l'aménagement paysager et l'infiltration des eaux pluviales…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 27 contacts → | ||||
Indirect evidence “At ACO Building Drainage, we don’t just manage water-we engineer smarter, safer, and more sustainable ways to control it.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 27 contacts → | ||||
Indirect evidence “Sadex on kotimainen perheyritys, joka kehittää, myy ja asentaa laadukkaita sadevesijärjestelmiä sekä kattoturva- ja tikastuotteita.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 27 contacts → | ||||
Indirect evidence “More than just a manufacturer - we're your partners in sustainable architectural excellence.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 27 contacts → | ||||
Strong evidence “FOUNDED IN 1874, Berger has established itself as a leading provider of high-quality roof drainage, moisture protection, snow retention, and ventilation systems for commercial and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 26 contacts → | ||||
Indirect evidence “Capcon Engineering are rainwater drainage and harvesting specialists providing design consultation and sub-contracting services on large-scale construction projects.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 26 contacts → | ||||
Indirect evidence “Sinds is Hollanddak specialist in grote daken.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 24 contacts → | ||||
Partial evidence “Columbia Green Technologies offers comprehensive green roof solutions for a variety of situations: extensive, semi-intensive and intensive roof gardens.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 24 contacts → | ||||
Indirect evidence “Kimmenade biedt bedrijven, overheden en vastgoedeigenaren een gegarandeerde, duurzame oplossing voor het 100% waterproof afdichten van gebouwen en betonconstructies.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 22 contacts → | ||||
Indirect evidence “Alutec is the UK leader in innovative aluminium rainwater and eaves drainage solutions.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 22 contacts → | ||||
Indirect evidence “Licenced & Insured.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: roof catchment system providers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names roof catchment system providers.
- Partial evidence
- Its own public description names part of roof catchment system providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name roof catchment system providers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 475 roof catchment system providers worldwide
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Roof catchment system providers worldwide at a glance
As of Sep 21, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among roof catchment system providers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for roof catchment system providers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “roof catchment system providers”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names roof catchment system providers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among roof catchment system providers, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 1,017 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Roof catchment system providers by location
3 lists · largest firstEvery Roof catchment system providers 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 Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names roof catchment system providers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many roof catchment system providers are there worldwide?
RevenueBase identified 475 roof catchment system providers worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Bauder Flat Roofs, headquartered in Ipswich, tops this list with the largest team on record.
Which country has the most roof catchment system providers?
The United Kingdom leads with 84 companies, followed by the United States (58) and the Netherlands (42). Every roof catchment system providers list by country and city is linked on this page.
Which city has the most roof catchment system providers?
London leads with 4 headquartered companies, followed by Ahmedabad (3) and Johannesburg (3).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,017 verified decision-maker contacts tracked across these 475 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.