Company lists · Data refreshed September 2026

Top 25 Drainage system contractors worldwide

RevenueBase identified 1,787 drainage system contractors worldwide as of September 2026 and tracks 16,743 professional contacts across them, including 5,560 with verified work emails and 0 with mobile numbers. The United States is the largest market and Auckland the largest hub.

This list covers drainage system contractors 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 16, 2026. Country and city lists for drainage system contractors 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review
1,787Companies
16,743Contacts tracked
5,560Verified emails
0Mobile numbers
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The 25 largest drainage system contractors worldwide

Ranked by team size
Top 25 of 1,787 drainage system contractors worldwide, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to drainage system contractors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceLeeds, United KingdomHQ checked Sep 16, 20261,001-5,0001,219 contacts →

Partial evidence

“Lanes Group is a leading provider of specialist drainage, utility, and asset maintenance services.”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceEdmonton, AB, CanadaHQ checked Sep 16, 20261,001-5,000475 contacts →

Partial evidence

“Armtec has spent over 110 years supplying the most innovative drainage equipment, dynamically designed to support roadways, stormwater, rehabilitation, and erosion control.”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceAuckland, New ZealandHQ checked Sep 16, 2026501-1,000338 contacts →

Partial evidence

“Hynds Pipe Systems Ltd is the largest operating company within the family owned Hynds Group.”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceLenting, GermanyHQ checked Sep 16, 2026501-1,000243 contacts →

Partial evidence

“Draining water, treating wastewater and protecting against backwater: As drainage specialists, we protect people from the power of water and protect water from people.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceLeipzig, GermanyHQ checked Sep 16, 2026501-1,000200 contacts →

Indirect evidence

“Im Jahr 1991 mit dem Fokus auf Wasserversorgung und Abwasserbeseitigung gegründet, operiert unsere Unternehmensgruppe heute in Deutschland und Österreich.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceDen Haag, NetherlandsHQ checked Sep 16, 2026201-500167 contacts →

Indirect evidence

“RRS Nederland BV is in Nederland dé specialist op het gebied van ontstoppen, reinigen, inspecteren en lokaliseren van afvoerleidingen in elke denkbare afmeting en heeft in ruim 50…”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceSaint-jean-sur-richelieu, QC, CanadaHQ checked Sep 16, 2026501-1,000162 contacts →

Indirect evidence

“1st developer of solutions for mastering water sustainably.”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceCorona, CA, United StatesHQ checked Sep 16, 2026201-500152 contacts →

Partial evidence

“Boudreau Pipeline Corporation has completed conventional and highly complex pipeline projects for Southern California’s leading builders, municipalities, utilities and contractors.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceRastatt, GermanyHQ checked Sep 16, 2026201-500151 contacts →

Partial evidence

“Drainage with HAURATON For almost 60 years we are internationally successful as a specialist in surface drainage.”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceSydney Olympic Park, AustraliaHQ checked Sep 16, 2026201-500147 contacts →

Partial evidence

“At Atlan Stormwater, we draw on more than 45 years’ experience in the design, testing and manufacture of water treatment systems that are utilised in over 45 countries.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceCoventry, United KingdomHQ checked Sep 16, 20261,001-5,000137 contacts →

Indirect evidence

“Severn Trent Services offer a range of services to municipal and industrial clients, including the Ministry of Defence and the Coal Authority, for design, build and operation of…”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceMorrisville, NC, United StatesHQ checked Sep 16, 2026501-1,000136 contacts →

Indirect evidence

“AQUALIS is the national leader in water management, compliance and engineering, helping businesses meet complex water regulations while protecting long-term infrastructure.”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceAtlanta, GA, United StatesHQ checked Sep 16, 202651-200136 contacts →

Partial evidence

“WHAT WE DO Site Engineering's primary focus is underground utilities construction, completing waterline, storm drainage, and sewer projects throughout metropolitan Atlanta and the…”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceCarlisle, United KingdomHQ checked Sep 16, 2026201-500132 contacts →

Partial evidence

“JDP is Britain’s leading merchant-manufacturer supplying the UK Civils and Drainage industry.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceMirabel, QC, CanadaHQ checked Sep 16, 2026501-1,000127 contacts →

Indirect evidence

“DUROKING Construction est une entreprise de construction œuvrant dans le domaine du génie civil pour les projets municipaux, commerciaux ou gouvernementaux.”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceRomeoville, IL, United StatesHQ checked Sep 16, 202651-200112 contacts →

Indirect evidence

“StormTrap offers proven, leading-edge solutions for managing runoff, protecting waterways and improving the use of your property.”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceBrackley, United KingdomHQ checked Sep 16, 202651-200110 contacts →

Indirect evidence

“We provide professionally managed commercial services to businesses across a variety of industries.”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceSao Paulo, BrazilHQ checked Sep 16, 2026201-500102 contacts →

Indirect evidence

“A Sanit Engenharia foi fundada em 1989 com o intuito de contribuir no campo da Engenharia Civil.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceMulgrave, AustraliaHQ checked Sep 16, 202651-20094 contacts →

Indirect evidence

“CMP Consulting Group is a multi-disciplinary Engineering firm specialising in design, project management and construction phase services for the Water Industry.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceSalvador, BrazilHQ checked Sep 16, 20261,001-5,00092 contacts →

Indirect evidence

“A Hydrosistem Engenharia é referência nacional em soluções completas de saneamento, com mais de 20 anos de atuação no gerenciamento, operação e manutenção de sistemas de…”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceCoraopolis, PA, United StatesHQ checked Sep 16, 202651-20091 contacts →

Indirect evidence

“LSSE Civil Engineers and Surveyors, founded in 1985, is a civil engineering and surveying firm that serves the municipal government/authorities, commercial, industrial…”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceMantova, ItalyHQ checked Sep 16, 202651-20091 contacts →

Indirect evidence

“STA aiuta le Società di Gestione del Servizio Idrico e le Piccole, Medie e Grandi Industrie a progettare, costruire e gestire impianti di trattamento delle acque reflue, primarie…”

Source: RevenueBase Database · checked Sep 16, 2026
23Partial evidenceGeebung, AustraliaHQ checked Sep 16, 2026201-50090 contacts →

Partial evidence

“Everhard is a proudly Australian manufacturer and wholesaler, with more than 100 years of experience delivering innovative, sustainable water and drainage solutions that support…”

Source: RevenueBase Database · checked Sep 16, 2026
24Strong evidencePlant City, FL, United StatesHQ checked Sep 16, 2026201-50087 contacts →

Strong evidence

“CLEARING Clearing & Grubbing, Haul Off or Burn on Site Services Available EARTHWORK Dirt Excavation, Mass Grading, Hauling, and Dirt Moving Operations STORM DRAINAGE SYSTEM Pond…”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidenceGravesend, United KingdomHQ checked Sep 16, 202651-20086 contacts →

Partial evidence

“Metcor Environmental is one of the UK’s leading commercial drainage, plumbing and pump engineering firms.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 1,787 drainage system contractors worldwide

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Drainage system contractors worldwide at a glance

As of Sep 16, 2026
33.2%Verified-email coverage
9.4Average contacts per company
11-50Median size (employees)
1.5%Largest-city concentration · Auckland
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
842
11-50
634
51-200
215
201-500
41
501-1,000
15
1,001-5,000
8
5,001-10,000
1

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 drainage system contractors, 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
14 countries, largest first: the United States, the United Kingdom, Australia, Germany, Canada, the Netherlands, New Zealand, France, Brazil, Denmark and 4 more. Country and city lists for drainage system contractors are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “drainage system contractors”. 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 drainage system contractors), 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 drainage system contractors, 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, 5,560 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 16, 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.

Drainage system contractors by location

14 lists · largest first

Every Drainage 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 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 drainage system contractors, 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 drainage system contractors are there worldwide?

RevenueBase identified 1,787 drainage system contractors 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?

Lanes Group, headquartered in Leeds, tops this list with the largest team on record.

Which country has the most drainage system contractors?

The United States leads with 562 companies, followed by the United Kingdom (500) and Australia (122). Every drainage system contractors list by country and city is linked on this page.

Which city has the most drainage system contractors?

Auckland leads with 27 headquartered companies, followed by London (20) and Melbourne (13).

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 5,560 verified decision-maker contacts tracked across these 1,787 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 16, 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.