Seilen OÜ
Seilen OÜ is a OÜ based in Tallinn, registry code 17177085, status: active. Main activity: Engineering activities and related technical consultancy. According to EMTA, turnover for Q3 2026 was €7 053 with 1 employees.
Q3 2026 · data from the Tax and Customs Board (EMTA)
Position in the industry
- Turnover · Q3 2026 7 053 €above 29% of companiesindustry median 16 250 € · companies in the industry: 2 781
- Labour taxes per employee 755 €above 14% of companiesindustry median 1 751 € · companies in the industry: 1 910
- Revenue · 2025 22 004 €above 49% of companiesindustry median 23 548 € · companies in the industry: 4 824
- Net profit margin · 2025 0.4 %above 28% of companiesindustry median 15.1 % · companies in the industry: 3 876
Taxes and turnover
- 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.
- 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.
| Quarter | Turnover, € | State taxes, € | Labour taxes, € | Employees |
|---|---|---|---|---|
| Q3 2026 | 7 053 | — | 755 | 1 |
| Q2 2026 | 19 359 | 2 884 | 1 201 | 1 |
| Q1 2026 | 20 134 | 3 423 | 252 | 1 |
| Q4 2025 | 7 568 | — | — | — |
| Q3 2025 | 5 000 | 1 091 | — | — |
| Q2 2025 | 3 555 | — | — | — |
| Q1 2025 | 1 500 | 330 | — | — |
Q3 2026 · calculated from EMTA data
Financials by year
- 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.
- 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.
- 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.
- 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.
| Year | Revenue, € | Net profit, € | Labour costs, € | Assets, € | Equity, € | Employees |
|---|---|---|---|---|---|---|
| 2025 | 22 004 | 79 | 0 | 4 291 | 80 | 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 2025
Annual reports
| Year | Period | Filed | Report | Documents |
|---|---|---|---|---|
| 2025 | 13 Feb 2025 – 31 Dec 2025 | 22 Jan 2026 | Company’s own | e-Äriregister |
Board
- Marleen SeilenthalBoard member · since 13 Feb 2025
- Sander SeilenthalBoard member · since 13 Feb 2025
Right of representation
Any member of the management board may represent the private limited company in all transactions.
Owners
- Marleen SeilenthalNatural person · 1 €
Beneficial owners
- Marleen SeilenthalMember of a senior management body (management or supervisory board) · since 13 Feb 2025
- Sander SeilenthalMember of a senior management body (management or supervisory board) · since 13 Feb 2025
Founders and other persons
- Marleen SeilenthalFounder · 1 € · 12 Feb 2025
Related companies
Activities (EMTAK)
- 7112Engineering activities and related technical consultancy Main
Rulings
All rulings (PDF)| Number, date | Title | Deadline | State | Document |
|---|---|---|---|---|
| Ä 50275742 / 2 17 Mar 2025 |
Entry refused: deficiencies not eliminated | In force 2 Apr 2025 |
||
| Ä 50275742 / M1 18 Feb 2025 |
Ruling to eliminate deficiencies | 10 Mar 2025 | In force 6 Mar 2025 |
|
| Ä 50275742 13 Feb 2025 |
First entry | In force 13 Feb 2025 |
Sources: e-Äriregister and EMTA. Data updated 1 Nov 2026. Open at the source ↗ · Report an error in the data