Company lists · Data refreshed September 2026

Top 25 Municipal wastewater treatment contractors based in Sweden

Name: Municipal wastewater treatment contractors based in Sweden
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 50 companies tracked

RevenueBase identified 50 municipal wastewater treatment contractors headquartered in Sweden as of September 2026 and tracks 1,309 professional contacts across them, including 681 with verified work emails. Stockholm is the largest hub.

This list covers municipal wastewater treatment contractors headquartered in Sweden, 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 17, 2026.

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 17, 2026 86% judged on-target in blind review

50Companies

1,309Contacts tracked

681Verified emails

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The 25 largest municipal wastewater treatment contractors based in Sweden

Ranked by team size

Top 25 of 50 municipal wastewater treatment contractors based in Sweden, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to municipal wastewater treatment 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Uppsala Vatten OCH Avfall AB	Indirect evidence	Uppsala, SwedenHQ checked Sep 17, 2026	201-500	250 contacts →
	Indirect evidence “Uppsala Vatten och Avfall AB är ett kommunalt bolag med cirka 370 medarbetare.” Source: RevenueBase Database · checked Sep 17, 2026
2	ITT Flygt	Indirect evidence	Stockholm, SwedenHQ checked Sep 17, 2026	1,001-5,000	172 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
3	Nordic Water Products	Strong evidence	Mölndal, SwedenHQ checked Sep 17, 2026	51-200	144 contacts →
	Strong evidence “Nordic Water is an international company which provides equipment and systems for water and wastewater treatment to process industries and public utilities.” Source: RevenueBase Database · checked Sep 17, 2026
4	Gryaab AB	Indirect evidence	Gothenburg, SwedenHQ checked Sep 17, 2026	51-200	111 contacts →
	Indirect evidence “Om Gryaab På Gryaab jobbar vi tillsammans för ett renare hav och en bättre miljö.” Source: RevenueBase Database · checked Sep 17, 2026
5	Käppalaförbundet	Indirect evidence	Lidingö, SwedenHQ checked Sep 17, 2026	51-200	91 contacts →
	Indirect evidence “Käppalaförbundet renar avloppsvatten från mer än en halv miljon människor plus vatten från verksamheter i elva medlemskommuner norr och öster om Stockholm.” Source: RevenueBase Database · checked Sep 17, 2026
6	Kalmar Vatten	Indirect evidence	Kalmar, SwedenHQ checked Sep 17, 2026	51-200	63 contacts →
	Indirect evidence “Kalmar Vatten AB är ett kommunägt bolag som har till uppgift att förse kommuninvånarna med dricksvatten av hög kvalitet och rena avloppsvattnet innan det når Kalmarsund.” Source: RevenueBase Database · checked Sep 17, 2026
7	Cleanpipe Sverige AB	Indirect evidence	Gunnilse, SwedenHQ checked Sep 17, 2026	51-200	55 contacts →
	Indirect evidence “VILKA ÄR CLEANPIPE?” Source: RevenueBase Database · checked Sep 17, 2026
8	Enwa Water Technology	Partial evidence	Gothenburg, SwedenHQ checked Sep 17, 2026	51-200	43 contacts →
	Partial evidence “Enwa works with water treatment across multiple industries and does not let conservative traditions prevent us from thinking outside the box.” Source: RevenueBase Database · checked Sep 17, 2026
9	Sundbyberg Avfall & Vatten AB	Indirect evidence	Sundbyberg, SwedenHQ checked Sep 17, 2026	51-200	36 contacts →
	Indirect evidence “Sundbyberg Avfall och Vatten AB är ett helägt kommunalt bolag och ingår i koncernen Sundbybergs Stadshus AB.” Source: RevenueBase Database · checked Sep 17, 2026
10	Kingspan Baga AB	Indirect evidence	Karlskrona, SwedenHQ checked Sep 17, 2026	51-200	33 contacts →
	Indirect evidence “Kingspan BAGA arbetar med vattenrening.” Source: RevenueBase Database · checked Sep 17, 2026
11	Marinfloc	Strong evidence	Varekil, SwedenHQ checked Sep 17, 2026	11-50	28 contacts →
	Strong evidence “For a quarter of a century, Marinfloc has been at the forefront of wastewater treatment solutions for vessels and offshore platforms.” Source: RevenueBase Database · checked Sep 17, 2026
12	SYVAB	Indirect evidence	Grödinge, SwedenHQ checked Sep 17, 2026	51-200	25 contacts →
	Indirect evidence “Syvab AB är ett kommunalt aktiebolag som ägs av kommunerna Botkyrka, Nykvarn, Salem och av Stockholm stad genom deras bolag Stockholm Vatten AB och Södertälje genom deras bolag…” Source: RevenueBase Database · checked Sep 17, 2026
13	Vatten & Miljöresurs	Indirect evidence	Sveg, SwedenHQ checked Sep 17, 2026	51-200	25 contacts →
	Indirect evidence “Vatten och Miljöresurs finns till för att framtida generationer ska kunna fortsätta njuta av fjäll, vattendrag, skog och mark inom vårt verksamhetsområde.” Source: RevenueBase Database · checked Sep 17, 2026
14	WRS AB	Indirect evidence	Uppsala, SwedenHQ checked Sep 17, 2026	11-50	22 contacts →
	Indirect evidence “Vi är experter på spillvatten, dagvatten, naturvatten och lakvatten.” Source: RevenueBase Database · checked Sep 17, 2026
15	Swedish Hydro Solutions	Indirect evidence	Alingsås, SwedenHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “Swedish Hydro Solutions is an innovative company in the field of environmental and water technology.” Source: RevenueBase Database · checked Sep 17, 2026
16	Puls AB	Indirect evidence	Staffanstorp, SwedenHQ checked Sep 17, 2026	51-200	20 contacts →
	Indirect evidence “Puls – Planerad Underhållsservice AB – ser till att VA-nätet kartläggs, underhålls och servas för att fungera så bra som möjligt.” Source: RevenueBase Database · checked Sep 17, 2026
17	Härryda Vatten OCH Avfall AB	Indirect evidence	Mölnlycke, SwedenHQ checked Sep 17, 2026	11-50	17 contacts →
	Indirect evidence “Härryda Vatten och Avfall är ett kommunalt bolag i en expansiv kommun.” Source: RevenueBase Database · checked Sep 17, 2026
18	Dala Kommunalteknik AB	Indirect evidence	Borlänge, SwedenHQ checked Sep 17, 2026	11-50	14 contacts →
	Indirect evidence “Dala Kommunalteknik är en komplett leverantör av pumpanläggningar inom vatten och avlopp.” Source: RevenueBase Database · checked Sep 17, 2026
19	Fann Va-Teknik AB	Indirect evidence	Täby, SwedenHQ checked Sep 17, 2026	11-50	14 contacts →
	Indirect evidence “Vår mission är att skapa en bättre vattenmiljö och hälsa genom att utveckla lösningar för rening av avloppsvatten.” Source: RevenueBase Database · checked Sep 17, 2026
20	Aquasvea AB	Indirect evidence	Stockholm, SwedenHQ checked Sep 17, 2026	11-50	13 contacts →
	Indirect evidence “Vi bygger VA-Sverige med specialitet inom maskin- och processdesign.” Source: RevenueBase Database · checked Sep 17, 2026
21	Elva Processautomation AB	Indirect evidence	Motala, SwedenHQ checked Sep 17, 2026	11-50	12 contacts →
	Indirect evidence “Rent vatten är en av världens viktigaste frågor.” Source: RevenueBase Database · checked Sep 17, 2026
22	Watersystems Sverige AB	Indirect evidence	Tranås, SwedenHQ checked Sep 17, 2026	11-50	10 contacts →
	Indirect evidence “Watersystems Sweden started 2012 as a subsidiary of Tranås Cementvarufabrik AB.” Source: RevenueBase Database · checked Sep 17, 2026
23	VA Ingenjörerna	Indirect evidence	SwedenHQ checked Sep 17, 2026	51-200	10 contacts →
	Indirect evidence “Vattenrening för kommun och industri.” Source: RevenueBase Database · checked Sep 17, 2026
24	Vilokan Recycling Tech AB	Indirect evidence	Strömstad, SwedenHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “Vilokan Recycling Tech löser all typ av rening och återvinning av vätskor för industri och offentlig sektor.” Source: RevenueBase Database · checked Sep 17, 2026
25	Atek Avvattningsteknik AB	Indirect evidence	Solna, SwedenHQ checked Sep 17, 2026	1-10	7 contacts →
	Indirect evidence “ATEK levererar produkter och tjänster inom avlopp- och dricksvattenrening, biogasproduktion samt muddring i Sverige och Norge.” Source: RevenueBase Database · checked Sep 17, 2026

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: municipal wastewater treatment contractors. 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 municipal wastewater treatment contractors.
Partial evidence: Its own public description names part of municipal wastewater treatment contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name municipal wastewater treatment contractors. 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 50 municipal wastewater treatment contractors based in Sweden

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Municipal wastewater treatment contractors based in Sweden at a glance

As of Sep 17, 2026

52.0%Verified-email coverage

26.2Average contacts per company

11-50Median size (employees)

12.0%Largest-city concentration · Stockholm

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured worldwide rather than for Sweden, so it is reported there. Company counts and contact totals on this page are exact for Sweden, over 50 companies.

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 municipal wastewater treatment 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.
What qualifies: Companies headquartered in Sweden whose own description of what they do matches “municipal wastewater treatment 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 municipal wastewater treatment 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 municipal wastewater treatment contractors, and records with no verified work email. Companies headquartered outside Sweden are excluded even when they keep an office there.
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, 681 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 17, 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.

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 municipal wastewater treatment 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 municipal wastewater treatment contractors are there based in Sweden?

RevenueBase identified 50 municipal wastewater treatment contractors headquartered in Sweden 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?

Uppsala Vatten OCH Avfall AB, headquartered in Uppsala, tops this list with the largest team on record.

Which city has the most municipal wastewater treatment contractors?

Stockholm leads with 6 headquartered companies, followed by Uppsala (3) and Boras (2).

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 681 verified decision-maker contacts tracked across these 50 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 17, 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.