sertec OÜ

Active Registry code 16452508 OÜ Puhja alevik Registered 2 Mar 2022

sertec OÜ is a OÜ based in Puhja alevik, registry code 16452508, status: active. Main activity: Production of electricity from renewable sources. According to EMTA, turnover for Q3 2026 was €29 887 with 3 employees.

Turnover

29 887 €

↑ 43.5% vs Q2 2026

State taxes

5 491 €

↑ 996.0% vs Q2 2026

Labour taxes

5 033 €

↑ 927.1% vs Q2 2026

Employees

−2 vs Q2 2026

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

Position in the industry Electricity, gas, steam and air conditioning supply · EMTAK 35

Turnover · Q3 2026 29 887 €

above 71% of companies

industry median 3 039 € · companies in the industry: 735
Labour taxes per employee 1 678 €

above 31% of companies

industry median 2 710 € · companies in the industry: 179
Revenue · 2024 57 058 €

above 76% of companies

industry median 4 455 € · companies in the industry: 1 036
Net profit margin · 2024 -12.0 %

above 31% of companies

industry median 4.5 % · companies in the industry: 727

Taxes and turnover

Q4 2023 – Q3 2026

Turnover, € Q3 2026: 29 887 € · +43.5% vs Q2 2026 · industry median 3 039 € · above 71% of the industry

Company
Industry median

Industry: Electricity, gas, steam and air conditioning supply (the EMTAK division of the main activity). Median: half of the industry is above, half below.

Labour taxes per employee, € Q3 2026: 1 678 € · +1 611.9% vs Q2 2026 · industry median 2 710 € · above 31% of the industry

Company
Industry median

Industry: Electricity, gas, steam and air conditioning supply (the EMTAK division of the main activity). Median: half of the industry is above, half below.

Employees Q3 2026: 3 · −40.0% vs Q2 2026

State taxes, € Q3 2026: 5 491 € · +996.0% vs Q2 2026

Figures by quarter
Quarter	Turnover, €	State taxes, €	Labour taxes, €	Employees
Q3 2026	29 887	5 491	5 033	3
Q2 2026	20 827	501	490	5
Q1 2026	—	344	—	4
Q4 2025	17 916	—	—	—
Q3 2025	—	—	—	—
Q2 2025	28 568	2 643	1 989	—
Q1 2025	51 212	2 836	2 466	—
Q4 2024	9 424	409	204	2
Q3 2024	3 920	—	—	—
Q2 2024	11 680	1 041	—	—
Q1 2024	—	—	—	1
Q4 2023	—	156	—	—
Q3 2023	1 492	—	—	—
Q2 2023	3 300	—	—	—
Q1 2023	2 880	185	—	—
Q4 2022	16 683	1 215	—	—
Q3 2022	8 928	286	—	—
Q2 2022	5 454	436	—	—

Labour taxes per employee per month

559 €

Turnover per employee in the quarter

9 962 €

Q3 2026 · calculated from EMTA data

Financials by year

2022 – 2024

Revenue, € 2024: 57 058 € · +1 115.8% vs 2023 · industry median 4 455 € · above 76% of the industry

Company
Industry median

Industry: Electricity, gas, steam and air conditioning supply (the EMTAK division of the main activity). Median: half of the industry is above, half below.

Net profit, € 2024: -6 866 € · −753.9% vs 2023 · industry median 0 € · above 20% of the industry

Company
Industry median

Industry: Electricity, gas, steam and air conditioning supply (the EMTAK division of the main activity). Median: half of the industry is above, half below.

Net profit margin, % 2024: -12.0 % · −34.4 pp vs the year before · industry median 4.5 % · above 31% of the industry

Company
Industry median

Industry: Electricity, gas, steam and air conditioning supply (the EMTAK division of the main activity). Median: half of the industry is above, half below.

Assets, € 2024: 27 962 € · −11.0% vs 2023

Equity, € 2024: 23 653 € · −22.5% vs 2023

Employees 2024: 1 · industry median 2 · above 5% of the industry

Company
Industry median

Industry: Electricity, gas, steam and air conditioning supply (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
2024	57 058	-6 866	727	27 962	23 653	1
2023	4 693	1 050	0	31 429	30 519	0
2022	35 999	26 969	0	34 945	34 945	0

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

Financial ratios for 2024

Net profit margin

-12.0 %

Net profit / revenue

Return on equity (ROE)

-29.0 %

Net profit / equity

Return on assets (ROA)

-24.6 %

Net profit / assets

Equity ratio

84.6 %

Equity / assets

Debt ratio

15.4 %

Liabilities / assets

Current ratio

6.49

Current assets / current liabilities

Revenue per employee

57 058 €

Revenue / average full-time employees

Labour cost per employee per month

61 €

Labour costs / employees / 12 months (incl. employer taxes)

Annual reports

PDFs from e-Äriregister

Annual reports
Year	Period	Filed	Report	Documents
2024	1 Jan 2024 – 31 Dec 2024	18 Jul 2025	Company’s own	e-Äriregister
2023	1 Jan 2023 – 31 Dec 2023	7 Nov 2024	Company’s own	e-Äriregister
2022	2 Mar 2022 – 31 Dec 2022	21 Dec 2023	Company’s own	e-Äriregister

Board

Sergei Gussev
Board member · since 2 Mar 2022

Right of representation

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

Owners

Sergei Gussev
Natural person · 2 500 €

100%

Beneficial owners

Sergei Gussev
Direct ownership · since 2 Mar 2022

Founders and other persons

Sergei Gussev
Founder · 2 500 € · 28 Feb 2022

Activities (EMTAK)

3512Production of electricity from renewable sources Main

Rulings 5

All rulings (PDF)

Rulings
Number, date	Title	Deadline	State	Document
Ä 50197658 / M3 7 Sep 2024	Warning of deletion from the register: annual report not filed	11 Dec 2024	Deficiencies eliminated 8 Nov 2024	PDF
Ä 50197658 / M2 19 Jul 2024	Warning of deletion from the register: annual report not filed	22 Oct 2024	Deficiencies eliminated 24 Aug 2024	PDF
Ä 50197658 / M1 21 Dec 2023	Warning of deletion from the register: annual report not filed	25 Mar 2024	Deficiencies eliminated 22 Dec 2023	PDF
Ä 50197658 / 2 1 Sep 2023	Amendment entry		In force 1 Sep 2023	PDF
Ä 50197658 2 Mar 2022	First entry		In force 2 Mar 2022	PDF

Sources: e-Äriregister and EMTA. Data updated 29 Oct 2026. Open at the source ↗ · Report an error in the data