Insinööritoimisto Leo Maaskola Oy
Insinööritoimisto Leo Maaskola Oy is a Finnish limited company (Oy), listed in the Finnish Trade Register since 10.01.1964. Primary activity is engineering design and technical consultancy incidental to heating, plumbing and air-conditioning (TOL 71124). The company is located in Helsinki.
Overview
About the company
Insinööritoimisto Leo Maaskola Oy is a Finnish limited company (Oy), listed in the Finnish Trade Register since 10.01.1964. Primary activity is engineering design and technical consultancy incidental to heating, plumbing and air-conditioning (TOL 71124). The company is located in Helsinki.
Basic data
- Business name
- Insinööritoimisto Leo Maaskola Oy
- Registry code
- 0201665-5
- Legal form
- Limited company (Oy)
- Status
- Active
- First registration
- 10.01.1964
- Address
- Osmontie, 00610, Helsinki
- Primary activity (TOL)
- 71124 – Engineering design and technical consultancy incidental to heating, plumbing and air-conditioning
- Website
- https://www.maaskola.fi
Financials
Revenue trend
Annual reports
| 2021 | 2022 | 2023 | 2024 | 2025 | |
|---|---|---|---|---|---|
| Revenue | 5,6 M€ | 5,7 M€ | 6,2 M€ | 5,7 M€ | 6,3 M€ |
| Operating profit | 1,1 M€ | 1,1 M€ | 1,2 M€ | 804 k€ | 988 k€ |
| Op. margin | 19.3 % | 18.9 % | 19.1 % | 14.1 % | 15.8 % |
| Growth | -3.2 % | +2.3 % | +8.1 % | -7.4 % | +9.5 % |
| Equity ratio | 59.3 % | 59.4 % | 56.3 % | 57.5 % | 58.1 % |
| Employees | 54 | 55 | 59 | 54 | 53 |
| Balance sheet | 2,5 M€ | 2,5 M€ | 2,8 M€ | 2,2 M€ | 2,4 M€ |
Tax data 2020–2024
| 2020 | 2021 | 2022 | 2023 | 2024 | |
|---|---|---|---|---|---|
| Taxable income | 1,4 M€ | 1,1 M€ | 1,1 M€ | 1,2 M€ | 829 k€ |
| Tax assessed | 290 k€ | 219 k€ | 221 k€ | 240 k€ | 169 k€ |
| Effective tax rate | 20.21 % | 20.28 % | 20.28 % | 20.25 % | 20.35 % |
| Tax refund | 261 € | – | – | 43 € | 1 k€ |
| Back-tax owed | – | – | – | – | – |
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 Insinööritoimisto Leo Maaskola Oy
Insinööritoimisto Leo Maaskola Oy (Business ID 0201665-5) is a Finnish limited company (Oy), registered in the Trade Register on 10.01.1964. Latest reported revenue is 6,3 M€ (2025), with about 53 employees, based in Helsinki.
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