O3 Inseneribüroo OÜ
RegisteredKey figures
Ratios
2025Summary: O3 Inseneribüroo OÜ
What kind of company is it?
O3 Inseneribüroo OÜ (registry code 12321790) is a private limited company (OÜ). The company was entered in the Commercial Register in 2012 and has been registered for 14 years. Registered location: Kuressaare linn, Saaremaa vald, Saare maakond. According to the latest annual report, the main activity is engineering design and consultancy for construction (EMTAK 71121). The company is registered for VAT (VAT number EE101632351).
How is the company doing financially?
Revenue in financial year 2025 was 664 849 €, down 2,7% on the previous year (683 447 €). From 2019 to 2025, revenue grew by an average of 3,9% per year. Net profit for financial year 2025 was 3947 € (0,6% of revenue). The company was profitable in 5 of the 7 published financial years. In financial year 2025 the company had 14 employees (9 a year earlier). Revenue per employee was 47 489 €. At the end of financial year 2025, total assets were 138 112 € and equity 55 896 € (40,5% of assets).
What do the latest quarters show?
According to the Tax and Customs Board, turnover in Q3 2026 was 164 030 €, down 8,0% on the same quarter a year earlier. The company had 17 employees in that quarter. Labour taxes paid in the quarter: 58 969 €. Based on labour taxes, the estimated average gross salary in Q3 2026 was about 2180 € per month.
Who runs the company and who owns it?
The management board has 2 members. The sole owner of the company is O3 Technology OÜ.
Where does the data come from and how fresh is it?
Register data (name, address, legal form, management board and owners) come from the Commercial Register of the Centre of Registers and Information Systems (RIK); changes are read from RIK every night. Financial figures come from annual reports; the latest report (financial year 2025) was filed on 30.06.2026. Quarterly turnover, employee numbers and labour taxes come from the open data of the Tax and Customs Board (EMTA); latest quarter Q3 2026. Changes, averages and ratios are calculated by entity.ee from open data and are not an official assessment.
Quarterly figures
| Quarter | Revenue | Number of employees | Labour taxes |
|---|---|---|---|
| Q3 2026 | 164 030 € | 17 | 58 969 € |
| Q2 2026 | 162 595 € | 17 | 63 903 € |
| Q1 2026 | 167 446 € | 16 | 61 687 € |
| Q4 2025 | 146 997 € | 15 | 64 082 € |
| Q3 2025 | 178 272 € | 16 | 74 145 € |
| Q2 2025 | 171 754 € | 18 | 86 573 € |
| Q1 2025 | 176 976 € | 18 | 73 991 € |
Source: Tax Board open data — based on VAT returns, may not exactly match revenue in the annual report. Updated quarterly.
Dividends
calculatedNo dividends were distributed.
Summary of financial statements2021–2025
| 2021 | 2022 | 2023 | 2024 | 2025 | |
|---|---|---|---|---|---|
| Sales revenue | 401 292 | 561 799 | 598 660 | 683 447 | 664 849 |
| Net profit | −134 465 | 685 | 22 493 | −2905 | 3947 |
| Retained earnings | 163 641 | 29 176 | 29 861 | 52 354 | 49 449 |
| Total assets | 109 983 | 114 516 | 136 750 | 217 846 | 138 112 |
| Total liabilities | 78 307 | 82 155 | 81 896 | 165 897 | 82 216 |
| Total equity | 31 676 | 32 361 | 54 854 | 51 949 | 55 896 |
| Employees | 13 | 15 | 14 | 9 | 14 |
| Average gross salary (monthly) | 2194 | 2234 | 2488 | 4329 | 2729 |
| Calculated dividend | 0 | 0 | 0 | 0 | 0 |
A dash (—) means the report has not been filed or the line is not reported; 0 is a zero stated in the report.
Risks and obligationsAll clear
Data from public registers, not a credit rating.
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