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Private company

St1 Deep Heat

Logo: Trademark holder ST1 Oy, Public domain, via Wikimedia Commons3

St1 Deep Heat is a former Finnish energy company, part of St1, founded in 2014.1 It ceased to exist in 2018.1

St1 Deep Heat oli suomalainen ener­gia­yh­tiö, joka oli osa St1 Nordic -konsernia. Se fuusioitiin sisaryhtiöönsä St1 Oy:hyn 31. joulukuuta 2018. Yhtiö on poraamassa Espooseen kahta geotermistä energiaa hyödyntävää reikää yhteistyössä Fortumin kanssa. Hanke on toteutuessaan Suomen ensimmäinen geotermisellä energialla toimiva teollisen mittakaavan lämpölaitos.2 From the Finnish Wikipedia, CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

2014Founded1

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Corporate structure

St1 Deep Heat is part of a group headed by Keele Oy. 10 entities, 3 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Keele Oy
    • St1 Nordic Helsinki, Finland
      • St1 Helsinki, Finland
        • St1 Deep Heat
        • St1 Finance Oy Subsidiary · 100% · Helsinki, Finland
        • ST1 NORGE AS Subsidiary · 100% · Oslo, Norway
        • St1 Refinery AB Subsidiary · 100% · Gothenburg, Sweden
        • St1 Suomi Oy Subsidiary · 100% · Helsinki, Finland
        • St1 Sverige AB Subsidiary · 100% · Bromma, Sweden
        • Tuulivoltti Oy Subsidiary · 100% · Helsinki, Finland

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

Subsidiaries and ownership

Parent company

From Wikidata.1

Timeline

  1. Dec 31, 2018Dissolved Dissolved1
  2. 2014Founded Founded1

Sources

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

  1. 1
  2. 2
  3. 3