Registered 6. juuni 2016, primary activity: Constructional engineering-technical designing and consulting. Main place of business in Kristiine linnaosa, Tallinn, Harju maakond.
| Year | Revenue | Profit |
|---|
O3 Technology OÜ is connected to 12 other companies through 5 people who hold a role here and elsewhere. The strongest tie runs through Mihkel Hiielaid (3 companies).
| Equity |
|---|
| Assets |
|---|
| Employees |
|---|
| 2024 | 1 460 629 € | −1840 € | 201k € | 524k € | 15 | 30.06.2025 | |
| 2023 | 1 322 122 € | −43 570 € | 212k € | 441k € | 24 | 16.04.2024 | |
| 2022 | 1 332 173 € | 144 485 € | 257k € | 380k € | 29 | 29.06.2023 | |
| 2021 | 911 869 € | 995 € | 151k € | 295k € | 21 | 05.05.2022 | |
| 2020 | 950 239 € | 45 032 € | 151k € | 251k € | 20 | 11.06.2021 | |
| 2019 | 897 999 € | 55 199 € | 121k € | 210k € | 22 | 17.04.2020 |
| Year | Revenue (a) | State taxes | Taxes on workforce | Employees (Q4) |
|---|---|---|---|---|
| 2026I Q | 297 987 € | 40 255 € | 21 500 € | 3 |
| 2025 | 1 619 021 € | 212 278 € | 82 646 € | 3 |
| 2024 | 1 376 399 € | 205 255 € | 137 252 € | 5 |
| 2023 | 1 343 913 € | 199 835 € | 172 972 € | 10 |
| 2022 | 1 351 854 € | 198 089 € | 113 431 € | 9 |
| Year | Q1 | Q2 | Q3 | Q4 |
|---|---|---|---|---|
| Revenue 2026 | 298k € | – | – | – |
| State taxes 2026 | 40k € | – | – | – |
| Taxes on workforce 2026 | 22k € | – | – | – |
| Employees 2026 | 3 | – | – | – |
| Revenue 2025 | 437k € | 486k € | 318k € | 378k € |
| State taxes 2025 | 52k € | 67k € | 40k € | 53k € |
| Taxes on workforce 2025 | 20k € | 21k € | 21k € | 21k € |
| Employees 2025 | 5 | 3 | 3 | 3 |
| Revenue 2024 | 330k € | 405k € | 349k € | 293k € |
| State taxes 2024 | 58k € | 81k € | 55k € | 11k € |
| Taxes on workforce 2024 | 40k € | 48k € | 31k € | 18k € |
| Employees 2024 | 10 | 8 | 5 | 5 |
| Revenue 2023 | 341k € | 364k € | 291k € | 347k € |
| State taxes 2023 | 51k € | 50k € | 41k € | 58k € |
| Taxes on workforce 2023 | 43k € | 45k € | 43k € | 42k € |
| Employees 2023 | 9 | 9 | 10 | 10 |
| Revenue 2022 | 284k € | 373k € | 347k € | 348k € |
| State taxes 2022 | 34k € | 44k € | 73k € | 47k € |
| Taxes on workforce 2022 | 21k € | 19k € | 37k € | 36k € |
| Employees 2022 | 5 | 9 | 9 | 9 |
| Company | Role | Reg. code |
|---|---|---|
| Hiimek OÜ | Board memberShareholder 100%FounderUltimate beneficial owner | 16232043 |
| O3 Energy OÜ | Board member | 14291372 |
| O3 Inseneribüroo OÜ | Board memberUltimate beneficial owner | 12321790 |
| Company | Role | Reg. code |
|---|---|---|
| MAVI OÜ | Board memberShareholder 100%FounderUltimate beneficial owner | 16925384 |
| O3 Energy OÜ | Board member |
| Company | Role | Reg. code |
|---|---|---|
| Hooneühistu Jahu 8a | Board member | 80075800 |
| O3 Energy OÜ | Ultimate beneficial owner | 14291372 |
| Company | Role | Reg. code |
|---|---|---|
| 4TEET OÜ | Ultimate beneficial ownerBoard member | 16293033 |
| Powerants OÜ | FounderUltimate beneficial ownerShareholder 100% |
| Company | Role | Reg. code |
|---|---|---|
| O3 Energy OÜ | Ultimate beneficial owner | 14291372 |
| O3 Inseneribüroo OÜ | Founder | 12321790 |
| 14291372 |
| O3 Inseneribüroo OÜ | Board memberUltimate beneficial owner | 12321790 |
| 14820907 |