Company lists · Data refreshed September 2026

Top 25 Insulation and air sealing companies based in Sweden

RevenueBase identified 71 insulation and air sealing companies headquartered in Sweden as of September 2026 and tracks 424 professional contacts across them, including 170 with verified work emails. Stockholm is the largest hub.

This list covers insulation and air sealing companies 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 20, 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 20, 2026 86% judged on-target in blind review
71Companies
424Contacts tracked
170Verified emails
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The 25 largest insulation and air sealing companies based in Sweden

Ranked by team size
Top 25 of 71 insulation and air sealing companies based in Sweden, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to insulation and air sealing companies: 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
1Indirect evidenceBorlänge, SwedenHQ checked Sep 20, 202651-20074 contacts →

Indirect evidence

“Isolerab AB erbjuder villaägare en helhetslösning för ett friskare inomhusklimat och lägre energikostnader; Tilläggsisolering, Ventilation och Mögelbehandling.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceSävedalen, SwedenHQ checked Sep 20, 202611-5036 contacts →

Partial evidence

“ISOPARTNER - More than just a supplier ISOPARTNER is a wholesaler focused on providing professional insulation, sheet metal and passive fire protection contractors with technical…”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceTäby, SwedenHQ checked Sep 20, 202651-20026 contacts →

Indirect evidence

“ENIVA Isolerproffs erbjuder energieffektiva lösningar för företag, organisationer och privatpersoner.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceKarlstad, SwedenHQ checked Sep 20, 202611-5020 contacts →

Indirect evidence

“Vi erbjuder ägare och förvaltare av fastigheter en prisvärd helhetslösning när det gäller energi- och bullerisolering av befintliga fönster, för att snabbt och effektivt minska…”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceKristinehamn, SwedenHQ checked Sep 20, 202611-5020 contacts →

Indirect evidence

“With 40 over years of experience, the Finnish family-owned company Finnfoam offers and develops the market's most advanced structural energy efficiency solutions for reducing the…”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceBorås, SwedenHQ checked Sep 20, 202611-5018 contacts →

Indirect evidence

“Sjömarkens Isolering är ett av Sveriges äldsta lösullsföretag med stor erfarenhet som vi gärna delar med oss av.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceMölndal, SwedenHQ checked Sep 20, 202611-5013 contacts →

Indirect evidence

“Det finns en mängd olika typer av fogningsarbeten.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceVästerås, SwedenHQ checked Sep 20, 202611-5012 contacts →

Indirect evidence

“PM Fog & Brandteknik erbjuder professionell fogning för stora och små byggprojekt, fasadfogning & brandfogning.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceUpplands Vasby Stockholm, SwedenHQ checked Sep 20, 202611-5010 contacts →

Indirect evidence

“Isoleringslandslaget startades med visionen att hjälpa våra kunder att spara pengar genom att sänka sina uppvärmningskostnader.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceHelsingborg, SwedenHQ checked Sep 20, 202651-20010 contacts →

Indirect evidence

“Valf-Teknik AB är företaget som utför besiktningar, avfuktning och läcksökning.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceVästerås, SwedenHQ checked Sep 20, 20261-1010 contacts →

Indirect evidence

“IMPERIO fog & Brandteknik AB Utför tjänster inom brandskydd och fogningsarbeten.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceMalmö, SwedenHQ checked Sep 20, 202611-5010 contacts →

Indirect evidence

“Vi hjälper fastighetsägare att skapa friskare inomhusklimat, sänka sina driftkostnader och lämna ett mindre klimatavtryck.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceÄlvdalen, SwedenHQ checked Sep 20, 202611-508 contacts →

Indirect evidence

“Vår moderna produktionsanläggning på 6 kvm finns i Älvdalen, i hjärtat av Dalarna.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceUppsala, SwedenHQ checked Sep 20, 202611-506 contacts →

Indirect evidence

“Uppsala Isolering är din partner när du önskar teknisk isolering av rör & ventilation.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceÅkersberga, SwedenHQ checked Sep 20, 202611-506 contacts →

Indirect evidence

“Vi specialiserar oss på en sak: att göra byggnader täta.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceTäby, SwedenHQ checked Sep 20, 202611-506 contacts →

Indirect evidence

“Brand- & ljudtätning *Brandskyddsmålning av bärande stål- och träkonstruktion *Brandinklädnad med brandisolering & brandgips *Estetisk fog *”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceVårby, SwedenHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

“Välkomna till Stockholm Lösull!”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceHässleholm, SwedenHQ checked Sep 20, 2026201-5005 contacts →

Indirect evidence

“Skydda det som är viktigast.”

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceVärnamo, SwedenHQ checked Sep 20, 202651-2004 contacts →

Partial evidence

“SealEco provides tailor-made sealing solutions for the building envelope and lining applications, improving efficiency and durability, with environmental benefits.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceHelsingborg, SwedenHQ checked Sep 20, 202611-504 contacts →

Indirect evidence

“Vi är lösullsisolering Isolerservice resa började 1980, då fyra entreprenörer såg möjligheterna med lösullsisolering.”

Source: RevenueBase Database · checked Sep 20, 2026
21Partial evidenceLandvetter, SwedenHQ checked Sep 20, 202611-503 contacts →

Partial evidence

“Thermo-Logic is a dynamic, innovative and service-minded company mainly focusing on optimizing energy costs and maintenance by Cool Roofing, Technical Insulation Solutions and…”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceKarlskoga, SwedenHQ checked Sep 20, 202611-503 contacts →

Indirect evidence

“Vi är experter inom teknisk isolering för industri, vvs, ventilation och brandtätning med egen tillverkning av plåtkonstruktioner och madrassisolering.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceRåneå, SwedenHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“Installation av lösullsisolering i alla typer av konstruktioner.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceUddevalla, SwedenHQ checked Sep 20, 20261-102 contacts →

Indirect evidence

“Efter att ha arbetat i över 60 år inom teknisk isolering startar vi nu upp Insutec Sweden AB.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceUndersåker, SwedenHQ checked Sep 20, 20261-102 contacts →

Indirect evidence

“Vi är ett litet byggföretag i Åredalen som har eget snickeri.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 71 insulation and air sealing companies based in Sweden

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Insulation and air sealing companies based in Sweden at a glance

As of Sep 20, 2026
40.1%Verified-email coverage
6.0Average contacts per company
1-10Median size (employees)
7.0%Largest-city concentration · Stockholm
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
36
11-50
26
51-200
8
201-500
1

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 71 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 insulation and air sealing companies, 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 “insulation and air sealing companies”. 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 insulation and air sealing companies), 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 insulation and air sealing companies, 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, 170 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 20, 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 insulation and air sealing companies, 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 insulation and air sealing companies are there based in Sweden?

RevenueBase identified 71 insulation and air sealing companies 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?

Isolerab AB, headquartered in Borlange, tops this list with the largest team on record.

Which city has the most insulation and air sealing companies?

Stockholm leads with 5 headquartered companies, followed by Borlange (3) and Malmo (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 170 verified decision-maker contacts tracked across these 71 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 20, 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.