Private company

Hafslund Celsio

Hafslund Celsio is a Norway's largest supplier of district heating and waste incineration based in Oslo, founded in 1997.1 Its chief executive is Martin Lundby (since 2024).1 It employed 200 people in 2022.1

Hafslund Celsio, tidligere kjent som Fortum Oslo Varme, er Norges største leverandør av fjernvarme og et sentralt selskap i Oslos energiforsyning. I mai 2022 ble navnet endret som et resultat av at Hafslund kjøpte opp 60 % av selskapet, mens de øvrige eierandelene eies av Infranode (20 %) og HitecVision (20 %). Navneendringen reflekterer selskapets utvikling og langsiktige mål innen fornybar energi og karbonfangst. Celsio-navnet er inspirert av Celsius, som understreker selskapets fokus på termisk energi som en kjernevirksomhet.2 From the Norwegian Wikipedia, CC BY-SA 4.0

Last updated Oct 20, 2026.

Overview

Feb 24, 1997Founded1
  • Industrydistrict heating1
  • HeadquartersOslo, Norway1
  • Websitewww.celsio.no
  • Legal formaksjeselskap1
  • LEI549300SEV7OT8URJL3203
  • StatusActive3
  • LEI statusIssued and current3
  • Registered addressAskekroken 11, 0277 Oslo, Norway3
  • Registered withThe Brønnøysund Register Centre, 977 296 9193

See how the biggest companies compare on our leaderboards

Corporate structure

Hafslund Celsio is part of a group headed by Hafslund. 17 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Hafslund Oslo, Norway
    • Hafslund Celsio Oslo, Norway
    • Hafslund Kraft Subsidiary · 57.2% · Oslo, Norway
      • Oppland Energi Subsidiary · Lillehammer, Norway
      • E-CO ENERGI HOLDING AS Subsidiary · Oslo, Norway
      • HAFSLUND KRAFT AS Subsidiary · Oslo, Norway
        • HAFSLUND KRAFT INNLANDET AS Subsidiary · Lillehammer, Norway
      • Hafslund Kraft Innlandet Subsidiary · Norway
    • Eidsiva Energi Subsidiary · 50% · Hamar, Norway
      • Eidsiva Digital 90% · Lillehammer, Norway
      • Eidsiva Nett Subsidiary · Hamar, Norway
      • Elvia Subsidiary · Hamar Municipality, Norway
      • EIDSIVA VEKST AS Subsidiary · 100% · Hamar, Norway
      • EIDSIVA BIOENERGI AS Subsidiary · Gjoevik, Norway
    • Hafslund Nett Subsidiary · Oslo, Norway
    • Hafslund Vekst Subsidiary · Oslo, Norway

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

Leadership

Who has led Hafslund Celsio, and when. Pick a name to see everywhere that person has worked.

Chief executive

  1. Martin Lundby2024–now
200020052010201520202025

Products and brands

  • carbon capture and storage
  • district heating
  • waste management

Listed on Wikidata.1

Subsidiaries and ownership

Parent company

From Wikidata.1

Employees over time

  • 20222001

Timeline

  1. Sep 2024New chief executive Martin Lundby becomes CEO1
  2. Feb 24, 1997Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2
  3. 3