SERT OÜ

Active Registry code 14091489 OÜ Rosma küla Registered 3 Aug 2016
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SERT OÜ is a OÜ based in Rosma küla, registry code 14091489, status: active. Main activity: Other engineering-technical activities. According to EMTA, turnover for Q3 2026 was €5 530 with employees.

Turnover
5 530 €
↑ 196.5% vs Q2 2026
State taxes
814 €
↑ 239.2% vs Q2 2026
Labour taxes
0 €
Employees
—

Q3 2026 · data from the Tax and Customs Board (EMTA)

Position in the industry Architectural and engineering activities; technical testing and analysis · EMTAK 71

  • Turnover · Q3 2026 5 530 €
    industry median 16 250 € · companies in the industry: 2 781
  • Revenue · 2025 26 192 €
    industry median 23 548 € · companies in the industry: 4 824
  • Net profit margin · 2025 4.9 %
    industry median 15.1 % · companies in the industry: 3 876

Taxes and turnover

Q4 2023 – Q3 2026
Turnover, € Q3 2026: 5 530 € · +196.5% vs Q2 2026 · industry median 16 250 € · above 24% of the industry
05 00010 00015 00020 000Q4 2023 Company: 7 690 € Industry median: 17 217 €Q4·23Q1 2024 Company: 3 910 € Industry median: 15 638 €Q2 2024 Company: 8 735 € Industry median: 15 992 €Q2·24Q3 2024 Company: 14 748 € Industry median: 16 330 €Q4 2024 Company: 0 € Industry median: 17 266 €Q4·24Q1 2025 Company: 7 505 € Industry median: 15 215 €Q2 2025 Company: 11 671 € Industry median: 16 150 €Q2·25Q3 2025 Company: 5 763 € Industry median: 16 910 €Q4 2025 Company: 1 889 € Industry median: 17 310 €Q4·25Q1 2026 Company: 6 528 € Industry median: 15 906 €Q2 2026 Company: 1 865 € Industry median: 16 256 €Q2·26Q3 2026 Company: 5 530 € Industry median: 16 250 €Q3·2605 00010 00015 00020 000Q4 2024 Company: 0 € Industry median: 17 266 €Q1 2025 Company: 7 505 € Industry median: 15 215 €Q1·25Q2 2025 Company: 11 671 € Industry median: 16 150 €Q3 2025 Company: 5 763 € Industry median: 16 910 €Q3·25Q4 2025 Company: 1 889 € Industry median: 17 310 €Q1 2026 Company: 6 528 € Industry median: 15 906 €Q1·26Q2 2026 Company: 1 865 € Industry median: 16 256 €Q3 2026 Company: 5 530 € Industry median: 16 250 €Q3·26
  • Company
  • Industry median

Industry: Architectural and engineering activities; technical testing and analysis (the EMTAK division of the main activity). Median: half of the industry is above, half below.

State taxes, € Q3 2026: 814 € · +239.2% vs Q2 2026
05001 0001 5002 0002 500Q4 2023 Company: 1 073 €Q4·23Q1 2024 Company: 463 €Q2 2024 Company: 1 332 €Q2·24Q3 2024 Company: 1 856 €Q4 2024 Company: —Q4·24Q1 2025 Company: 2 115 €Q2 2025 Company: 867 €Q2·25Q3 2025 Company: 231 €Q4 2025 Company: 464 €Q4·25Q1 2026 Company: 1 435 €Q2 2026 Company: 240 €Q2·26Q3 2026 Company: 814 €Q3·2605001 0001 5002 0002 500Q4 2024 Company: —Q1 2025 Company: 2 115 €Q1·25Q2 2025 Company: 867 €Q3 2025 Company: 231 €Q3·25Q4 2025 Company: 464 €Q1 2026 Company: 1 435 €Q1·26Q2 2026 Company: 240 €Q3 2026 Company: 814 €Q3·26
Figures by quarter
Quarter Turnover, € State taxes, € Labour taxes, € Employees
Q3 2026 5 530 814 — —
Q2 2026 1 865 240 — —
Q1 2026 6 528 1 435 — —
Q4 2025 1 889 464 — —
Q3 2025 5 763 231 — —
Q2 2025 11 671 867 — —
Q1 2025 7 505 2 115 — —
Q4 2024 — — — —
Q3 2024 14 748 1 856 — —
Q2 2024 8 735 1 332 — —
Q1 2024 3 910 463 — —
Q4 2023 7 690 1 073 — —
Q3 2023 — — — —
Q2 2023 8 770 365 — —
Q1 2023 7 190 1 052 — —
Q4 2022 3 460 261 — —
Q3 2022 — — — —
Q2 2022 5 340 548 — —
Q1 2022 8 900 469 — —

Financials by year

2017 – 2025
Revenue, € 2025: 26 192 € · +10.6% vs 2024 · industry median 23 548 € · above 52% of the industry
010 00020 00030 00040 0002017 Company: — Industry median: —20172018 Company: — Industry median: —20182019 Company: 37 326 € Industry median: 23 879 €20192020 Company: 10 300 € Industry median: 21 696 €20202021 Company: 29 705 € Industry median: 23 290 €20212022 Company: 21 330 € Industry median: 23 304 €20222023 Company: 16 460 € Industry median: 22 720 €20232024 Company: 23 685 € Industry median: 22 098 €20242025 Company: 26 192 € Industry median: 23 548 €2025010 00020 00030 00040 0002018 Company: — Industry median: —2019 Company: 37 326 € Industry median: 23 879 €20192020 Company: 10 300 € Industry median: 21 696 €2021 Company: 29 705 € Industry median: 23 290 €20212022 Company: 21 330 € Industry median: 23 304 €2023 Company: 16 460 € Industry median: 22 720 €20232024 Company: 23 685 € Industry median: 22 098 €2025 Company: 26 192 € Industry median: 23 548 €2025
  • Company
  • Industry median

Industry: Architectural and engineering activities; technical testing and analysis (the EMTAK division of the main activity). Median: half of the industry is above, half below.

Net profit, € 2025: 1 280 € · −78.2% vs 2024 · industry median 1 536 € · above 49% of the industry
-10 000-5 00005 00010 00015 0002017 Company: — Industry median: —20172018 Company: — Industry median: —20182019 Company: -5 967 € Industry median: 2 331 €20192020 Company: -9 277 € Industry median: 2 183 €20202021 Company: 13 547 € Industry median: 2 742 €20212022 Company: -8 401 € Industry median: 1 794 €20222023 Company: -5 555 € Industry median: 2 165 €20232024 Company: 5 868 € Industry median: 1 691 €20242025 Company: 1 280 € Industry median: 1 536 €2025-10 000-5 00005 00010 00015 0002018 Company: — Industry median: —2019 Company: -5 967 € Industry median: 2 331 €20192020 Company: -9 277 € Industry median: 2 183 €2021 Company: 13 547 € Industry median: 2 742 €20212022 Company: -8 401 € Industry median: 1 794 €2023 Company: -5 555 € Industry median: 2 165 €20232024 Company: 5 868 € Industry median: 1 691 €2025 Company: 1 280 € Industry median: 1 536 €2025
  • Company
  • Industry median

Industry: Architectural and engineering activities; technical testing and analysis (the EMTAK division of the main activity). Median: half of the industry is above, half below.

Net profit margin, % 2025: 4.9 % · −19.9 pp vs the year before · industry median 15.1 % · above 37% of the industry
-100-500502017 Company: — Industry median: —20172018 Company: — Industry median: —20182019 Company: -16.0 % Industry median: 16.3 %20192020 Company: -90.1 % Industry median: 16.8 %20202021 Company: 45.6 % Industry median: 19.6 %20212022 Company: -39.4 % Industry median: 16.6 %20222023 Company: -33.7 % Industry median: 17.1 %20232024 Company: 24.8 % Industry median: 15.3 %20242025 Company: 4.9 % Industry median: 15.1 %2025-100-500502018 Company: — Industry median: —2019 Company: -16.0 % Industry median: 16.3 %20192020 Company: -90.1 % Industry median: 16.8 %2021 Company: 45.6 % Industry median: 19.6 %20212022 Company: -39.4 % Industry median: 16.6 %2023 Company: -33.7 % Industry median: 17.1 %20232024 Company: 24.8 % Industry median: 15.3 %2025 Company: 4.9 % Industry median: 15.1 %2025
  • Company
  • Industry median

Industry: Architectural and engineering activities; technical testing and analysis (the EMTAK division of the main activity). Median: half of the industry is above, half below.

Assets, € 2025: 14 852 € · −45.3% vs 2024
010 00020 00030 00040 0002017 Company: —20172018 Company: —20182019 Company: 23 514 €20192020 Company: 16 680 €20202021 Company: 21 810 €20212022 Company: 31 435 €20222023 Company: 21 301 €20232024 Company: 27 169 €20242025 Company: 14 852 €2025010 00020 00030 00040 0002018 Company: —2019 Company: 23 514 €20192020 Company: 16 680 €2021 Company: 21 810 €20212022 Company: 31 435 €2023 Company: 21 301 €20232024 Company: 27 169 €2025 Company: 14 852 €2025
Equity, € 2025: 12 636 € · +11.3% vs 2024
05 00010 00015 00020 0002017 Company: —20172018 Company: —20182019 Company: 15 184 €20192020 Company: 5 898 €20202021 Company: 19 445 €20212022 Company: 11 043 €20222023 Company: 5 488 €20232024 Company: 11 356 €20242025 Company: 12 636 €202505 00010 00015 00020 0002018 Company: —2019 Company: 15 184 €20192020 Company: 5 898 €2021 Company: 19 445 €20212022 Company: 11 043 €2023 Company: 5 488 €20232024 Company: 11 356 €2025 Company: 12 636 €2025
Employees 2025: 0 · industry median 1 · above 2% of the industry
0.00.20.40.60.81.02017 Company: 1 Industry median: —20172018 Company: 0 Industry median: 120182019 Company: 0 Industry median: 120192020 Company: 0 Industry median: 120202021 Company: 0 Industry median: 120212022 Company: 0 Industry median: 120222023 Company: 0 Industry median: 120232024 Company: 0 Industry median: 120242025 Company: 0 Industry median: 120250.00.20.40.60.81.02018 Company: 0 Industry median: 12019 Company: 0 Industry median: 120192020 Company: 0 Industry median: 12021 Company: 0 Industry median: 120212022 Company: 0 Industry median: 12023 Company: 0 Industry median: 120232024 Company: 0 Industry median: 12025 Company: 0 Industry median: 12025
  • Company
  • Industry median

Industry: Architectural and engineering activities; technical testing and analysis (the EMTAK division of the main activity). Median: half of the industry is above, half below.

Financials by year
Year Revenue, € Net profit, € Labour costs, € Assets, € Equity, € Employees
2025 26 192 1 280 0 14 852 12 636 0
2024 23 685 5 868 0 27 169 11 356 0
2023 16 460 -5 555 0 21 301 5 488 0
2022 21 330 -8 401 0 31 435 11 043 0
2021 29 705 13 547 0 21 810 19 445 0
2020 10 300 -9 277 0 16 680 5 898 0
2019 37 326 -5 967 0 23 514 15 184 0
2018 — — — — — 0
2017 — — — — — 1

Figures from the company’s own (non-consolidated) balance sheet and income statement. A loss is shown with a minus sign.

Financial ratios for 2025

Net profit margin
4.9 %
Net profit / revenue
Return on equity (ROE)
10.1 %
Net profit / equity
Return on assets (ROA)
8.6 %
Net profit / assets
Equity ratio
85.1 %
Equity / assets
Debt ratio
14.9 %
Liabilities / assets
Current ratio
6.70
Current assets / current liabilities

Annual reports

PDFs from e-Äriregister
Annual reports
Year Period Filed Report Documents
2025 1 Jan 2025 – 31 Dec 2025 25 Jun 2026 Company’s own e-Äriregister
2024 1 Jan 2024 – 31 Dec 2024 4 Jul 2025 Company’s own e-Äriregister
2023 1 Jan 2023 – 31 Dec 2023 1 Jul 2024 Company’s own e-Äriregister
2022 1 Jan 2022 – 31 Dec 2022 8 Jul 2023 Company’s own e-Äriregister
2021 1 Jan 2021 – 31 Dec 2021 17 Feb 2023 Company’s own e-Äriregister
2020 1 Jan 2020 – 31 Dec 2020 1 Apr 2022 Company’s own e-Äriregister
2019 1 Jan 2019 – 31 Dec 2019 17 Jul 2020 Company’s own e-Äriregister

Board

Right of representation

Any member of the management board may represent the private limited company in all transactions.

Owners

Beneficial owners

Founders and other persons

Activities (EMTAK)

  • 71129Other engineering-technical activities Main

Rulings 6

All rulings (PDF)
Rulings
Number, date Title Deadline State Document
Ä 50034727 / 5
1 Sep 2023
 Amendment entry In force
1 Sep 2023
 PDF
Ä 50034727 / 4
6 Jul 2023
 Amendment under Code of Civil Procedure § 595¹ (1) In force
6 Jul 2023
 PDF
Ä 50034727 / M1
30 Aug 2018
 Procedural ruling 29 Sep 2018 Deficiencies eliminated
29 Jan 2019
 PDF
Ä 50034727 / 3
20 Jan 2018
 Amendment entry In force
20 Jan 2018
 PDF
Ä 50034727 / 2
12 Dec 2017
 Amendment entry In force
12 Dec 2017
 PDF
Ä 50034727
3 Aug 2016
 First entry In force
3 Aug 2016
 PDF

Sources: e-Äriregister and EMTA. Data updated 31 Oct 2026. Open at the source ↗ · Report an error in the data