Sergio Ahi OÜ

Active Registry code 12877004 OÜ Tallinn Registered 9 Jul 2015

Sergio Ahi OÜ is a OÜ based in Tallinn, registry code 12877004, status: active. Main activity: Installation, maintenance and repair of heating, ventilation and air conditioning equipment. Its annual report for 2025 shows revenue of €7 967 and 0 employees.

Turnover

—

State taxes

877 €

↑ 0.0% vs Q2 2026

Labour taxes

877 €

↑ 0.0% vs Q2 2026

Employees

±0 vs Q2 2026

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

Position in the industry Specialised construction activities · EMTAK 43

Labour taxes per employee 877 €

above 25% of companies

industry median 1 236 € · companies in the industry: 5 958
Revenue · 2025 7 967 €

above 26% of companies

industry median 37 328 € · companies in the industry: 10 311
Net profit margin · 2025 -15.2 %

above 13% of companies

industry median 3.9 % · companies in the industry: 8 588

Taxes and turnover

Q4 2023 – Q3 2026

Labour taxes per employee, € Q3 2026: 877 € · +0.0% vs Q2 2026 · industry median 1 236 € · above 25% of the industry

Company
Industry median

Industry: Specialised construction activities (the EMTAK division of the main activity). Median: half of the industry is above, half below.

Employees Q3 2026: 1 · +0.0% vs Q2 2026

State taxes, € Q3 2026: 877 € · +0.0% vs Q2 2026

Figures by quarter
Quarter	Turnover, €	State taxes, €	Labour taxes, €	Employees
Q3 2026	—	877	877	1
Q2 2026	—	877	877	1
Q1 2026	—	855	855	1
Q4 2025	—	812	812	1
Q3 2025	—	848	901	1
Q2 2025	—	812	812	1
Q1 2025	—	780	780	1
Q4 2024	—	736	821	1
Q3 2024	—	745	840	1
Q2 2024	—	768	866	1
Q1 2024	—	703	793	1
Q4 2023	—	647	734	1
Q3 2023	—	647	726	1
Q2 2023	—	432	472	1
Q1 2023	—	637	717	1
Q4 2022	—	616	693	1
Q3 2022	—	616	693	1
Q2 2022	—	578	578	1
Q1 2022	—	599	627	1

Labour taxes per employee per month

292 €

Q3 2026 · calculated from EMTA data

Financials by year

2016 – 2025

Revenue, € 2025: 7 967 € · −60.2% vs 2024 · industry median 37 328 € · above 26% of the industry

Company
Industry median

Industry: Specialised construction activities (the EMTAK division of the main activity). Median: half of the industry is above, half below.

Net profit, € 2025: -1 214 € · +67.2% vs 2024 · industry median 561 € · above 22% of the industry

Company
Industry median

Industry: Specialised construction activities (the EMTAK division of the main activity). Median: half of the industry is above, half below.

Net profit margin, % 2025: -15.2 % · +3.3 pp vs the year before · industry median 3.9 % · above 13% of the industry

Company
Industry median

Industry: Specialised construction activities (the EMTAK division of the main activity). Median: half of the industry is above, half below.

Assets, € 2025: 3 593 € · −24.4% vs 2024

Equity, € 2025: 3 030 € · −28.6% vs 2024

Employees 2025: 0 · −100.0% vs 2024 · industry median 1 · above 2% of the industry

Company
Industry median

Industry: Specialised construction activities (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	7 967	-1 214	4 119	3 593	3 030	0
2024	19 999	-3 702	10 034	4 754	4 244	1
2023	32 369	-1 086	9 187	9 089	7 946	1
2022	29 003	3 582	7 086	10 054	9 032	1
2021	21 249	-442	6 433	5 884	5 450	1
2020	26 817	815	8 209	6 835	5 892	1
2019	15 726	-2 799	8 154	6 047	5 078	1
2018	—	—	—	—	—	1
2017	—	—	—	—	—	1
2016	—	—	—	—	—	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

-15.2 %

Net profit / revenue

Return on equity (ROE)

-40.1 %

Net profit / equity

Return on assets (ROA)

-33.8 %

Net profit / assets

Equity ratio

84.3 %

Equity / assets

Debt ratio

15.7 %

Liabilities / assets

Current ratio

4.90

Current assets / current liabilities

Annual reports

PDFs from e-Äriregister

Annual reports
Year	Period	Filed	Report	Documents
2025	1 Jan 2025 – 31 Dec 2025	29 Mar 2026	Company’s own	e-Äriregister
2024	1 Jan 2024 – 31 Dec 2024	14 Apr 2025	Company’s own	e-Äriregister
2023	1 Jan 2023 – 31 Dec 2023	12 Jan 2024	Company’s own	e-Äriregister
2022	1 Jan 2022 – 31 Dec 2022	27 Jan 2023	Company’s own	e-Äriregister
2021	1 Jan 2021 – 31 Dec 2021	23 Jan 2022	Company’s own	e-Äriregister
2020	1 Jan 2020 – 31 Dec 2020	15 Mar 2021	Company’s own	e-Äriregister
2019	1 Jan 2019 – 31 Dec 2019	10 Jun 2020	Company’s own	e-Äriregister

Board

Marko Freirik
Board member · since 9 Jul 2015

Right of representation

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

Owners

Marko Freirik
Natural person · 2 500 €

100%

Beneficial owners

Marko Freirik
Direct ownership · since 17 Sep 2018

Founders and other persons

Marko Freirik
Founder · 2 500 € · 8 Jul 2015

Activities (EMTAK)

43221Installation, maintenance and repair of heating, ventilation and air conditioning equipment Main

Rulings 5

All rulings (PDF)

Rulings
Number, date	Title	Deadline	State	Document
Ä 50011076 / 4 1 Sep 2023	Amendment entry		In force 1 Sep 2023	PDF
Ä 50011076 / 3 19 Jan 2018	Amendment entry		In force 19 Jan 2018	PDF
Ä 50011076 / 2 10 Dec 2017	Amendment entry		In force 10 Dec 2017	PDF
Ä 50011076 9 Jul 2015	First entry		In force 9 Jul 2015	PDF
Ä 50011076 / M1 8 Jul 2015	Ruling to eliminate deficiencies	28 Jul 2015	Deficiencies eliminated 9 Jul 2015	PDF

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