Oulun Sähkö- ja Teletekniikka Oy
Oulun Sähkö- ja Teletekniikka Oy is a Finnish limited company (Oy), listed in the Finnish Trade Register since 05.06.1991. Primary activity is electrical installation (TOL 43210). The company is located in Oulu.
Overview
About the company
Oulun Sähkö- ja Teletekniikka Oy is a Finnish limited company (Oy), listed in the Finnish Trade Register since 05.06.1991. Primary activity is electrical installation (TOL 43210). The company is located in Oulu.
Basic data
- Business name
- Oulun Sähkö- ja Teletekniikka Oy
- Registry code
- 0836634-9
- Legal form
- Limited company (Oy)
- Status
- Active
- First registration
- 05.06.1991
- Address
- Hiltusenkaarre, 90620, Oulu
- Primary activity (TOL)
- 43210 – Electrical installation
- Website
- https://www.ostt.fi
Financials
Revenue trend
Annual reports
| 2021 | 2022 | 2023 | 2024 | 2025 | |
|---|---|---|---|---|---|
| Revenue | 2,2 M€ | 3,3 M€ | 3,2 M€ | 3,6 M€ | 4,3 M€ |
| Operating profit | 74 k€ | 235 k€ | 242 k€ | -41000 € | 54 k€ |
| Op. margin | 3.4 % | 7.1 % | 7.6 % | -1.1 % | 1.3 % |
| Growth | +6.0 % | +53.1 % | -3.8 % | +13.0 % | +18.8 % |
| Equity ratio | 70.0 % | 60.0 % | 70.0 % | 60.0 % | 50.0 % |
| Employees | 18 | – | 27 | 33 | 31 |
| Balance sheet | 1,4 M€ | 2,3 M€ | 1,6 M€ | 1,7 M€ | 1,8 M€ |
Tax data 2020–2024
| 2020 | 2021 | 2022 | 2023 | 2024 | |
|---|---|---|---|---|---|
| Taxable income | 130 k€ | 76 k€ | 231 k€ | 246 k€ | 15 k€ |
| Tax assessed | 26 k€ | 16 k€ | 47 k€ | 50 k€ | 3 k€ |
| Effective tax rate | 20.32 % | 20.44 % | 20.33 % | 20.38 % | 20.65 % |
| Tax refund | – | 9 k€ | – | – | 52 k€ |
| Back-tax owed | – | – | 21 k€ | 35 k€ | – |
Source: official public tax records.
Board and representatives
Active people registered in the official company register, by role.
Location on map
The company's registered location: Oulu.
About Oulun Sähkö- ja Teletekniikka Oy
Oulun Sähkö- ja Teletekniikka Oy (Business ID 0836634-9) is a Finnish limited company (Oy), registered in the Trade Register on 05.06.1991. Latest reported revenue is 4,3 M€ (2025), with about 31 employees, based in Oulu.
The company's declared primary activity is electrical installation. Browse other companies in the same field on Electrical installation.
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