65active companies
2registered in the past year
26reported taxable income for 2024
23 t€industry median income in Finland, 2024
Largest by taxable income
| Company | Taxable income 2024 | Revenue |
|---|---|---|
| Hepacon OyLimited company, registered 1989 | 998 t€ | – |
| Insinööritoimisto Leo Maaskola OyLimited company, registered 1964 | 829 t€ | – |
| Insinööritoimisto Matti Hallasaari OyLimited company, registered 1983 | 598 t€ | – |
| Insinööritoimisto Viisicon OyLimited company, registered 2014 | 207 t€ | – |
| Helsingin Laskentasäätö OyLimited company, registered 1989 | 174 t€ | – |
| Uudenmaan Perussäätö OyLimited company, registered 2012 | 126 t€ | – |
| Paloturvasuunnittelu Block OyLimited company, registered 2018 | 125 t€ | – |
| Insinööritoimisto TR-Tekniikka OyLimited company, registered 1989 | 114 t€ | – |
| Jensen Hughes Finland OyLimited company, registered 2002 | 107 t€ | 4,4 M€ |
| Festec OyLimited company, registered 2011 | 85 t€ | – |
| Insinööritoimisto Linera OyLimited company, registered 1997 | 70 t€ | – |
| Maxitec Oy AbLimited company, registered 1991 | 57 t€ | – |
| Hewac Investing OyLimited company, registered 1991 | 52 t€ | – |
| Ilmastointimittaus Ari Sara OyLimited company, registered 1989 | 51 t€ | – |
| ValvoPlan OyLimited company, registered 2018 | 32 t€ | – |
| Insinööritoimisto Artella OyLimited company, registered 2021 | 16 t€ | – |
| Planius OyLimited company, registered 2018 | 15 t€ | – |
| LVI-Tekniikka Aulin OyLimited company, registered 1996 | 12 t€ | – |
| Consilium Consulting OyLimited company, registered 2022 | 10 t€ | – |
| TR-Tekniikka OyLimited company, registered 1975 | 7 287 € | – |
| LVI-numero OyLimited company, registered 2003 | 5 313 € | – |
| EKA Finland Oy AbLimited company, registered 2022 | 3 360 € | – |
| Safetymaster Paloinsinöörit OyLimited company, registered 2013 | 2 511 € | – |
| Säätösuunnittelu OyLimited company, registered 2024 | 1 650 € | – |
| Insinööritoimisto Taltekon OyLimited company, registered 2007 | 1 385 € | – |
| JL-Kumppanit OyLimited company, registered 2007 | 1 131 € | – |
| eLVIS asiantuntijat OyLimited company, registered 2024 | – | – |
| MIPE Systems OyLimited company, registered 2023 | – | – |
| Renewer OyLimited company, registered 2023 | – | – |
| OTiPlan OyLimited company, registered 2021 | – | – |
| Takoi Projektinjohto OyLimited company, registered 2020 | – | – |
| Smart Value OyLimited company, registered 2019 | – | – |
| Jet Pipes Pinnoitus OyLimited company, registered 2018 | – | – |
| KiRa-palvelut OyLimited company, registered 2017 | – | – |
| Takoi Talotekniikka OyLimited company, registered 2017 | – | – |
| LK Energiaratkaisut OyLimited company, registered 2017 | – | – |
| Ab Sustainergy OyLimited company, registered 2016 | – | – |
| Insinööritoimisto TeknoPlan OyLimited company, registered 2014 | – | – |
| Timvest OyLimited company, registered 2013 | – | – |
| Suomen energiainsinöörit OyLimited company, registered 2012 | – | – |
| Insinööritoimisto Hevacplan OyLimited company, registered 2011 | – | – |
| Insinööritoimisto Radiator OyLimited company, registered 2009 | – | – |
| LVI-Fenno Asennus OyLimited company, registered 2009 | – | – |
| Huhtacon OyLimited company, registered 2007 | – | – |
| Uolevi Huotila OyLimited company, registered 1997 | – | – |
| Arnacora OyLimited company, registered 1995 | – | – |
| Consertani OyLimited company, registered 1993 | – | – |
| LVI-suunnittelu BRL OyLimited company, registered 1991 | – | – |
| Helsingin Kartech OyLimited company, registered 1991 | – | – |
| Insinööritoimisto Jarmo Lehtonen OyLimited company, registered 1990 | – | – |
| Wessman Consulting OyLimited company, registered 1990 | – | – |
| Insinööritoimisto Actus OyLimited company, registered 1989 | – | – |
| Insinööritoimisto W. Zenner OyLimited company, registered 1984 | – | – |
| Insinööritoimisto Entalcon OyLimited company, registered 1984 | – | – |
| Jastek OyLimited company, registered 1974 | – | – |
| LJH Talotekniikka OyLimited company, registered 2026 | – | – |
| Promtec OyLimited company, registered 2026 | – | – |
| MTU Partners OyLimited company, registered 2025 | – | – |
| Avastic OyLimited company, registered 2025 | – | – |
| Keikko Partners OyLimited company, registered 2024 | – | – |
| SL Suunnittelu OyLimited company, registered 2024 | – | – |
| ST Saari KyLimited partnership, registered 1998 | – | – |
| Insinööritoimisto Kalervo P. Kuoksa KyLimited partnership, registered 1989 | – | – |
| Insinööritoimisto Pertti Holst KommandiittiyhtiöLimited partnership, registered 1983 | – | – |
| Insinööritoimisto LVI-69 Ilkka Leino KommandiittiyhtiöLimited partnership, registered 1976 | – | – |
Taxable income is the profit as calculated for taxation, not revenue. Revenue is shown once a company has filed its financial statements digitally. Each company's page has its financials, tax data and Trade Register events.
Newest companies
| LJH Talotekniikka Oy | 27.1.2026 |
| Promtec Oy | 8.1.2026 |
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