Sähköinsinööritoimisto J Mannonen Oy
Sähköinsinööritoimisto J Mannonen Oy is a Finnish limited company (Oy), listed in the Finnish Trade Register since 27.05.1992. Primary activity is electrical engineering design and technical consultancy (TOL 71125). The company is located in Helsinki.
Overview
About the company
Sähköinsinööritoimisto J Mannonen Oy is a Finnish limited company (Oy), listed in the Finnish Trade Register since 27.05.1992. Primary activity is electrical engineering design and technical consultancy (TOL 71125). The company is located in Helsinki.
Basic data
- Business name
- Sähköinsinööritoimisto J Mannonen Oy
- Registry code
- 0897342-1
- Legal form
- Limited company (Oy)
- Status
- Active
- First registration
- 27.05.1992
- Address
- Turuntie, 00370, Helsinki
- Primary activity (TOL)
- 71125 – Electrical engineering design and technical consultancy
- Website
- https://www.mannonen.fi
Financials
Revenue trend
Annual reports
| 2020 | 2021 | 2022 | 2023 | 2024 | |
|---|---|---|---|---|---|
| Revenue | 485 k€ | 440 k€ | 429 k€ | 508 k€ | 507 k€ |
| Operating profit | 116 k€ | -55000 € | -2000 € | 7 k€ | -65000 € |
| Op. margin | 24.2 % | -12.4 % | -0.3 % | 1.5 % | -12.8 % |
| Growth | +0.0 % | -9.3 % | -2.5 % | +18.4 % | -0.2 % |
| Equity ratio | 80.0 % | 60.0 % | 40.0 % | 50.0 % | 40.0 % |
| Employees | 7 | 7 | 7 | 7 | 7 |
| Balance sheet | 333 k€ | 366 k€ | 452 k€ | 436 k€ | 347 k€ |
Tax data 2020–2024
| 2020 | 2021 | 2022 | 2023 | 2024 | |
|---|---|---|---|---|---|
| Taxable income | 0 € | 60 k€ | 0 € | 0 € | 0 € |
| Tax assessed | 100 € | 15 k€ | 100 € | 100 € | 100 € |
| Effective tax rate | – | 25.29 % | – | – | – |
| Tax refund | 22 k€ | – | 10 k€ | 8 k€ | – |
| Back-tax owed | – | 15 k€ | – | – | 100 € |
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: Helsinki.
About Sähköinsinööritoimisto J Mannonen Oy
Sähköinsinööritoimisto J Mannonen Oy (Business ID 0897342-1) is a Finnish limited company (Oy), registered in the Trade Register on 27.05.1992. Latest reported revenue is 507 k€ (2024), with about 7 employees, based in Helsinki.
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