Company lists · Data refreshed September 2026

Top 25 Energy efficiency contractors based in Sweden

Name: Energy efficiency contractors based in Sweden
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 55 companies tracked

RevenueBase identified 55 energy efficiency contractors headquartered in Sweden as of September 2026 and tracks 482 professional contacts across them, including 252 with verified work emails. Stockholm is the largest hub.

This list covers energy efficiency 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 16, 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 16, 2026 86% judged on-target in blind review

55Companies

482Contacts tracked

252Verified emails

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The 25 largest energy efficiency contractors based in Sweden

Ranked by team size

Top 25 of 55 energy efficiency contractors based in Sweden, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy efficiency 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	Indoor Energy	Partial evidence	Stockholm, SwedenHQ checked Sep 16, 2026	201-500	137 contacts →
	Partial evidence “Våra kunder har de energieffektivaste fastigheterna!” Source: RevenueBase Database · checked Sep 16, 2026
2	LG Contracting AB	Partial evidence	Karlstad, SwedenHQ checked Sep 16, 2026	51-200	54 contacts →
	Partial evidence “Vi på LG Contracting älska att skapa smarta energilösningar inom värme och sanitet så att du kan trivas och må bra, vare sig det gäller i hemmet eller på jobbet.” Source: RevenueBase Database · checked Sep 16, 2026
3	ENGI	Partial evidence	Solna, SwedenHQ checked Sep 16, 2026	11-50	29 contacts →
	Partial evidence “Konsultbolag med branschens bästa kompetens och största passion för energieffektivisering.” Source: RevenueBase Database · checked Sep 16, 2026
4	Solar Energy Group	Partial evidence	Gävle, SwedenHQ checked Sep 16, 2026	11-50	28 contacts →
	Partial evidence “Vi på Solar Energy Group gör det enkelt att investera i en mer hållbar framtid.” Source: RevenueBase Database · checked Sep 16, 2026
5	Creanova AB	Partial evidence	Sollentuna, SwedenHQ checked Sep 16, 2026	11-50	25 contacts →
	Partial evidence “Vi är ett energikonsultföretag med huvudkontor i Sollentuna strax norr om Stockholm samt med filialkontor i Umeå.” Source: RevenueBase Database · checked Sep 16, 2026
6	Nrlyze AB	Indirect evidence	Stockholm, SwedenHQ checked Sep 16, 2026	1-10	16 contacts →
	Indirect evidence “Nrlyze är ett team av nyfikna entreprenörer, fastighetsägare, drifttekniker och ingenjörer som byggt det vi själva saknat under decennier.” Source: RevenueBase Database · checked Sep 16, 2026
7	Umia SYD AB	Indirect evidence	Malmö, SwedenHQ checked Sep 16, 2026	51-200	16 contacts →
	Indirect evidence “Umiamodellen – en kontaktperson för allt El- och rörteknik, hör det ihop?” Source: RevenueBase Database · checked Sep 16, 2026
8	Energibyrån Nord AB	Partial evidence	Umea, SwedenHQ checked Sep 16, 2026	11-50	12 contacts →
	Partial evidence “Vi på Energibyrån är erfarna teknikkonsulter som jobbar nära våra kunder för att tillsammans ta fram energieffektiva lösningar och minska påverkan på vår gemensamma miljö.” Source: RevenueBase Database · checked Sep 16, 2026
9	EKS	Partial evidence	Karlskrona, SwedenHQ checked Sep 16, 2026	11-50	11 contacts →
	Partial evidence “Vi på EKS ser till att din energiförbrukning alltid är optimal i din fastighet och vi ser därmed till att du sparar pengar året runt.” Source: RevenueBase Database · checked Sep 16, 2026
10	Energispar	Partial evidence	Arlandastad, SwedenHQ checked Sep 16, 2026	11-50	11 contacts →
	Partial evidence “Vi är experter på energieffektivisering, driftoptimering och hjälper bostadsrättsföreningar och fastighetsbolag att sänka sina energikostnader.” Source: RevenueBase Database · checked Sep 16, 2026
11	Egna Elkraft AB	Indirect evidence	Berga / Helsingborg, SwedenHQ checked Sep 16, 2026	11-50	11 contacts →
	Indirect evidence “Hos oss på Egna Elkraft är ”enkelhet” vårt ledord.” Source: RevenueBase Database · checked Sep 16, 2026
12	Energija Konsulterande Ingenjörsbyrå AB	Partial evidence	Jonsered, SwedenHQ checked Sep 16, 2026	1-10	9 contacts →
	Partial evidence “Consulting services promoting new technologies and innovation within the fields of energy, HVAC, environment and sustainability.” Source: RevenueBase Database · checked Sep 16, 2026
13	Energy Service Management	Partial evidence	Ängelholm, SwedenHQ checked Sep 16, 2026	1-10	9 contacts →
	Partial evidence “AFFÄRSIDÉ Energy Service Management i Sverige AB (ESM AB) är ett modernt konsultbolag som skall bistå fastighetsägare att skapa, utveckla, planera och genomföra olika typer av…” Source: RevenueBase Database · checked Sep 16, 2026
14	Eneff, Energieffektiviseringsföreningen	Partial evidence	Stockholm, SwedenHQ checked Sep 16, 2026	1-10	8 contacts →
	Partial evidence “Eneff är Sveriges intresseorganisation för energieffektivisering.” Source: RevenueBase Database · checked Sep 16, 2026
15	Total Ventilation I Linköping AB	Partial evidence	Linköping, SwedenHQ checked Sep 16, 2026	11-50	5 contacts →
	Partial evidence “Vi är ett installations- och serviceföretag i Linköping med fokus mot energi, servicelösningar & entreprenad.” Source: RevenueBase Database · checked Sep 16, 2026
16	Driftoptimering I Sverige AB	Partial evidence	Helsingborg, SwedenHQ checked Sep 16, 2026	1-10	4 contacts →
	Partial evidence “Driftoptimering I Sverige AB Vi levererar energieffektiva helhetslösningar för en trygg och säker fastighetsdrift.” Source: RevenueBase Database · checked Sep 16, 2026
17	Leosol Energi	Partial evidence	Norrland, SwedenHQ checked Sep 16, 2026	1-10	4 contacts →
	Partial evidence “Leosol hjälper fastighetsägare och verksamheter att minska energianvändningen, sänka driftskostnaderna och skapa bättre inomhusmiljöer genom smart energieffektivisering.” Source: RevenueBase Database · checked Sep 16, 2026
18	Ec2m	Partial evidence	Stockholm, SwedenHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “På EC2M är vårt fokus att hjälpa våra kunder att sänka sina energikostnader med stöd av energilagstiftningen, maximera sina besparingar och få tillbaka pengar som felaktigt…” Source: RevenueBase Database · checked Sep 16, 2026
19	ENEX	Partial evidence	Vaxholm, SwedenHQ checked Sep 16, 2026	1-10	2 contacts →
	Partial evidence “Vår affärsidé är att hjälpa våra kunder att minska sin energianvändning och sina driftskostnader i fastigheten.” Source: RevenueBase Database · checked Sep 16, 2026
20	Flexpower Nordic	Partial evidence	Lidköping, SwedenHQ checked Sep 16, 2026	1-10	2 contacts →
	Partial evidence “Flexpower hjälper dig att sänka dina energikostnader och effektivisera din energihantering.” Source: RevenueBase Database · checked Sep 16, 2026
21	Ency Nordisk Energieffektivisering AB	Partial evidence	Båstad, SwedenHQ checked Sep 16, 2026	1-10	2 contacts →
	Partial evidence “Våra energi och miljökonsulter hjälper kunderna att få ner sin energiförbrukning och öka sina gröna siffror på bottenlinjen.” Source: RevenueBase Database · checked Sep 16, 2026
22	Energi Triangeln AB	Partial evidence	Göteborg, SwedenHQ checked Sep 16, 2026	11-50	2 contacts →
	Partial evidence “Energi Triangeln erbjuder konsulttjänster inom energi- och installationsteknik.” Source: RevenueBase Database · checked Sep 16, 2026
23	Sveahvac	Partial evidence	Järna, SwedenHQ checked Sep 16, 2026	1-10	1 contacts →
	Partial evidence “SveaHVAC erbjuder tjänster inom energioptimering, ventilation och justering av fastighetssystem med målet att minska fastigheters energiförbrukning.” Source: RevenueBase Database · checked Sep 16, 2026
24	Viking VVS Teknik AB	Partial evidence	Helsingborg, SwedenHQ checked Sep 16, 2026	1-10	1 contacts →
	Partial evidence “Energioptimering av fastighetens VVS-system.” Source: RevenueBase Database · checked Sep 16, 2026
25	Årsta Elektriska & Bygg AB	Partial evidence	Stockholm, SwedenHQ checked Sep 16, 2026	1-10	1 contacts →
	Partial evidence “Vi bygger hållbara och energisnåla miljöer åt företag och statliga myndigheter.” Source: RevenueBase Database · checked Sep 16, 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: energy efficiency 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 energy efficiency contractors.
Partial evidence: Its own public description names part of energy efficiency contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy efficiency 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 55 energy efficiency contractors based in Sweden

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Energy efficiency contractors based in Sweden at a glance

As of Sep 16, 2026

52.3%Verified-email coverage

8.8Average contacts per company

1-10Median size (employees)

25.5%Largest-city concentration · Stockholm

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 55 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 energy efficiency 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 “energy efficiency 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 energy efficiency 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 energy efficiency 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, 252 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.

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 energy efficiency 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 energy efficiency contractors are there based in Sweden?

RevenueBase identified 55 energy efficiency 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?

Indoor Energy, headquartered in Stockholm Solna, tops this list with the largest team on record.

Which city has the most energy efficiency contractors?

Stockholm leads with 14 headquartered companies, followed by Helsingborg (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 252 verified decision-maker contacts tracked across these 55 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.