1,879
Raw observations
PRH-backed location observations before legal-entity normalization.
Largest Kajaani companies 2026: top 30
Kajaani companies in 2026: we built this ranking from DM Faster's comprehensive, PRH-backed Finland company data. The Kajaani dataset contains 1,801 active legal entities. The ranking orders the 110 companies that DM Faster has enriched with an exact 2024 or 2025 revenue observation.
Financially enriched
110
Companies with an exact 2024 or 2025 revenue observation in DM Faster
- 1,801
- 205
Ranking calculated from DM Faster's PRH-backed Finland company data. DM Faster enriches registry records with financial, personnel, technology, and sales signals.
Short answer
According to DM Faster company data, the three largest Kajaani legal entities are SAKELA RAKENNUS OY at €59.9m, Paikallis-Sähkö Oy at €42.5m, Kiinteistö Oy Kajaanin Pietari at €18.4m.
DM Faster company data
The 30 largest Kajaani companies in DM Faster data.
Every row shows the current legal name, Business ID, PRH industry, fiscal year, personnel, revenue, and DM Faster as the data source.
SAKELA RAKENNUS OY
€59.9m2025
Paikallis-Sähkö Oy
€42.5m2025
Kiinteistö Oy Kajaanin Pietari
€18.4m2025
Kaisanet Oy
€17.9m2024
Rakennusliike Halonen Oy
€17m2025
Arffman Finland Oy
€14.2m2025
LVI-AITTA OY
€9.21m2025
Koneistamo Alm Oy
€8.9m2024
Pyykkönen Yhtiöt Oy
€6.72m2024
CSE Simulation Oy
€6.72m2025
Revenue covers the full legal entity. DM Faster ranked 110 financially enriched companies for this analysis.
- 1
SAKELA RAKENNUS OY
Talonrakentaminen
€59,888,000
- Business ID
- 2767845-2
- Fiscal year
- 2025
- Personnel
- 93
- Data source
- DM Faster
- 2
Paikallis-Sähkö Oy
Sähköasennus
€42,532,000
- Business ID
- 0243115-4
- Fiscal year
- 2025
- Personnel
- 150
- Data source
- DM Faster
- 3
Kiinteistö Oy Kajaanin Pietari
Asuntojen vuokraus
€18,368,000
- Business ID
- 0185799-7
- Fiscal year
- 2025
- Personnel
- 25
- Data source
- DM Faster
- 4
Kaisanet Oy
Kiinteän puhelinverkon ja langattoman verkon hallinta ja palvelut sekä satelliittiviestintä
€17,940,000
- Business ID
- 2366937-2
- Fiscal year
- 2024
- Personnel
- 59
- Data source
- DM Faster
- 5
Rakennusliike Halonen Oy
Talonrakentaminen
€16,969,000
- Business ID
- 0503592-3
- Fiscal year
- 2025
- Personnel
- 38
- Data source
- DM Faster
- 6
Arffman Finland Oy
Muu muualla luokittelematon monenlainen koulutustoiminta
€14,179,000
- Business ID
- 2060633-3
- Fiscal year
- 2025
- Personnel
- 168
- Data source
- DM Faster
- 7
LVI-AITTA OY
Muu rautakauppatavaran, rakennustarvikkeiden ja lasin erikoistunut vähittäiskauppa
€9,214,000
- Business ID
- 1917195-0
- Fiscal year
- 2025
- Personnel
- 37
- Data source
- DM Faster
- 8
Koneistamo Alm Oy
Metallien työstö
€8,897,000
- Business ID
- 1906377-3
- Fiscal year
- 2024
- Personnel
- 48
- Data source
- DM Faster
- 9
Pyykkönen Yhtiöt Oy
Rakennuspaikan valmistelutyöt
€6,723,239
- Business ID
- 0235751-3
- Fiscal year
- 2024
- Personnel
- 26
- Data source
- DM Faster
- 10
CSE Simulation Oy
Muu tekninen palvelu
€6,719,000
- Business ID
- 2497601-6
- Fiscal year
- 2025
- Personnel
- 26
- Data source
- DM Faster
- 11
Imagon Oy
Sähköasennus
€6,690,000
- Business ID
- 0846259-2
- Fiscal year
- 2024
- Personnel
- 21
- Data source
- DM Faster
- 12
Clean and Safe Lappalainen Oy
Kiinteistöjen siivous
€6,258,000
- Business ID
- 2236387-3
- Fiscal year
- 2025
- Personnel
- 95
- Data source
- DM Faster
- 13
Worker Kainuu Oy
Työvoiman vuokraus ja muu henkilöstön hankintapalvelutoiminta
€6,164,000
- Business ID
- 3187780-9
- Fiscal year
- 2024
- Personnel
- 94
- Data source
- DM Faster
- 14
Vumos Oy
Varastointi
€5,222,000
- Business ID
- 2199811-3
- Fiscal year
- 2024
- Personnel
- 20
- Data source
- DM Faster
- 15
Piiraisen Viherpalvelu Oy
Maisemanhoitopalvelut
€5,034,000
- Business ID
- 0704518-0
- Fiscal year
- 2025
- Personnel
- 38
- Data source
- DM Faster
- 16
Pulse247 Oy
Ohjelmistojen suunnittelu ja valmistus
€3,923,000
- Business ID
- 2131570-6
- Fiscal year
- 2025
- Personnel
- 36
- Data source
- DM Faster
- 17
Rockseri Oy
Vaatteiden vähittäiskauppa ilman erikoistumista tiettyyn tuoteryhmään
€3,117,000
- Business ID
- 2497397-4
- Fiscal year
- 2024
- Personnel
- 25
- Data source
- DM Faster
- 18
Mattoasennus Karjalainen Oy
Lattianpäällystys ja seinien verhoilu
€2,804,000
- Business ID
- 2863384-6
- Fiscal year
- 2025
- Personnel
- 10
- Data source
- DM Faster
- 19
Critical Force Oy
Ohjelmistojen suunnittelu ja valmistus
€2,671,000
- Business ID
- 2343741-6
- Fiscal year
- 2024
- Personnel
- 39
- Data source
- DM Faster
- 20
Valco Oy
Tieto- ja viestintäteknisten laitteiden tukkukauppa
€2,500,000
- Business ID
- 2919697-5
- Fiscal year
- 2025
- Personnel
- 6
- Data source
- DM Faster
- 21
Trysil RMM Oy
Moottoriajoneuvojen runkojen ja korien valmistus; perävaunujen ja puoliperävaunujen valmistus
€2,482,000
- Business ID
- 1904000-2
- Fiscal year
- 2024
- Personnel
- 20
- Data source
- DM Faster
- 22
Aitokaluste Oy
Huonekalujen valmistus
€2,472,000
- Business ID
- 2538042-5
- Fiscal year
- 2024
- Personnel
- 19
- Data source
- DM Faster
- 23
Sunit Oy
Tietokoneiden ja niiden oheislaitteiden valmistus
€2,423,000
- Business ID
- 1054960-3
- Fiscal year
- 2025
- Personnel
- 30
- Data source
- DM Faster
- 24
Kainuun Auto ja Varaosa Oy
Jätteen ja romun tukkukauppa
€2,295,000
- Business ID
- 0185335-5
- Fiscal year
- 2025
- Personnel
- 22
- Data source
- DM Faster
- 25
Planray Oy
Sähköasennus
€2,183,000
- Business ID
- 0130262-5
- Fiscal year
- 2024
- Personnel
- 8
- Data source
- DM Faster
- 26
Autovälitys Peltoniemi Oy
Autojen ja kevyiden moottoriajoneuvojen vähittäiskauppa
€2,062,000
- Business ID
- 3177201-1
- Fiscal year
- 2025
- Personnel
- 3
- Data source
- DM Faster
- 27
Elektroval Oy
Kalustettujen piirilevyjen valmistus
€2,029,000
- Business ID
- 1101404-5
- Fiscal year
- 2024
- Personnel
- 15
- Data source
- DM Faster
- 28
Tieto-Oskari Oy
Ohjelmistojen suunnittelu ja valmistus
€2,022,000
- Business ID
- 0841579-6
- Fiscal year
- 2024
- Personnel
- 18
- Data source
- DM Faster
- 29
Rengashuolto Karjalainen Oy
Moottoriajoneuvojen renkaiden vähittäiskauppa
€1,944,737
- Business ID
- 2308251-2
- Fiscal year
- 2025
- Personnel
- 4
- Data source
- DM Faster
- 30
Kairest Oy
Työvoiman vuokraus ja muu henkilöstön hankintapalvelutoiminta
€1,806,000
- Business ID
- 2925337-8
- Fiscal year
- 2024
- Personnel
- 48
- Data source
- DM Faster
Sector mix
Construction and property leads the Kajaani company ranking.
Construction and property is the largest group and represents 60.1% of published top-30 revenue.
Construction and property
€161m60.1 %
Technology and engineering
€49.9m18.6 %
Commerce and logistics
€26.4m9.9 %
Industry and manufacturing
€15.9m5.9 %
Services and education
€14.6m5.4 %
Revenue covers the full legal entity. DM Faster ranked 110 financially enriched companies for this analysis.
DM Faster data coverage
DM Faster covers 1,801 active companies in Kajaani.
DM Faster's PRH-backed registry identifies 1,801 active legal entities with a current address in Kajaani. Of these, 110 have a comparable exact revenue observation from fiscal year 2024 or 2025.
1,801
Active companies
Active legal entities with a current address in Kajaani.
110
Financially enriched
Companies enriched by DM Faster with an exact 2024 or 2025 revenue observation.
30
Published companies
Largest companies published with Business IDs, industries, personnel, and revenue.
What the data shows
Kajaani's business leaders in numbers.
€268m
Top-30 revenue
The latest revenue observations in the published top 30 total €268m.
58.2%
Top-five share
The five largest legal entities account for 58.2% of represented top-30 revenue.
1,241
Personnel observations
A personnel observation was available for 30 companies. Together, those observations total 1,241.
Methodology
How was the Kajaani top 30 built?
DM Faster's Finland company registry is built from PRH company and location data, then enriched with financial, personnel, technology, and sales signals. For this report, the current Kajaani municipal population was verified on October 24, 2026 and every published revenue row was checked against DM Faster financial data.
1. Registry foundation
DM Faster's PRH-backed location data identified 1,879 Kajaani observations.
2. Company normalization
Current address under municipality code 205, active trade-register status, legal name, and Business ID were normalized. This produced 1,801 active entities.
3. Financial enrichment
DM Faster's financial enrichment connected an exact 2024 or 2025 revenue observation to 110 companies.
4. Ranking
Business ID formatting variants were unified, current legal names were restored from PRH, and the 30 largest entities were ranked by revenue.
How to read the ranking
- The population contains active legal entities with a current PRH visiting or postal address under municipality code 205.
- The ranking uses the latest exact DM Faster revenue observation from fiscal year 2024 or 2025.
- Revenue measures the full legal entity, not only sales generated in Kajaani or at one local establishment.
- Financial and registry data update over time, so ranks can move after a new filing or registry change.
Cite this research
A clear source for the original data.
DM Faster Data (2026). Largest Kajaani companies 2026: top 30. https://dmfaster.com/research/largest-companies-kajaani
Cite the findings with attribution.
You may cite findings and reproduce short excerpts when DM Faster is visibly credited and this report is linked. Republishing the full table, bulk reuse, and commercial redistribution require written permission from DM Faster.
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