Töökeskkonna Uuringud OÜ
- Registry code
- 10109548
- VAT number
- EE100139884
- Address
- Harju maakond, Tallinn, Kesklinna linnaosa, Gonsiori tn 21-311, 15020
- Registered
- 25.11.1996 · 29 yrs
- Activity
- Technical testing and analysis 71209
- Capital
- 40 900 €
- i•••@t•••.eeLog in to see
- Phone
- +372 •• ••••Log in to see
- Website
- www.tku.ee from email
Business Register 05.10.2026
Sales revenue56 281 €+13%2025 annual report
Profit6 495 €2025 annual report
Employees2Tax Board 2026 Q2
Average gross salary668 €estimate, Tax Board 2026 Q2
Labour taxes per quarter2 043 €Tax Board 2026 Q2
Cash5 852 €Cash 31.12.2025, annual report
Tax debt0 €Tax Board debtor list 05.10.2026
Revenue 12 months49 327 €-4%Tax Board, last 4 quarters
State taxes 12 months14 842 €Tax Board, last 4 quarters
Quick check
- No tax debt
- No enforcement proceedings (12 months)
- No payment orders (12 months)
- No bankruptcy or liquidation
- No sanctions
- Report filed (2025)
- VAT registered
Stability
Follow companyNotification when something changesRatingAA → A
In tax debt0 days since 26.09.2026
Revenue 12 months▼ 4% vs a year earlier
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Board and owners
1 persons
| Board 1 | ||
|---|---|---|
| Enn Saretok2 companiesno tax debt | Personal ID ↗ | 05.07.2001 |
| Shareholders 11 | ||
| Enn Saretok | 29,1% 11 900 € | 01.09.2023 |
| Margus Kask | 15,16% 6 200 € | 01.09.2023 |
| Anne Erin | 13,94% 5 700 € | 01.09.2023 |
| Ats Riivits | 13,94% 5 700 € | 01.09.2023 |
| Eha Reismaa | 13,94% 5 700 € | 01.09.2023 |
| Ilmar Heido | 13,94% 5 700 € | 01.09.2023 |
| Ilve Kangro | 13,94% 5 700 € | 01.09.2023 |
| Mare Remm | 13,94% 5 700 € | 01.09.2023 |
| Renna Kangro | 13,94% 5 700 € | 01.09.2023 |
| Tanel Kangro | 13,94% 5 700 € | 01.09.2023 |
| Urve Nilk | 13,94% 5 700 € | 01.09.2023 |
| Beneficial owners 1 | ||
| Enn Saretok2 companiesno tax debtmember of the senior management body, i.e. management or supervisory board member | 04.04.2024 | |
Business Register open data
Quarterly taxes and revenue
2026 Q2
State taxes / revenue29,5%
Labour taxes / revenue18,9%
Revenue per employee per month1 801 €
Gross salary (estimate)668 €
Net salary (estimate)644 €
2026 Q2. Wage is estimated from employment taxes.
| Quarter | Revenue | Change y/y | Labour taxes | State taxes | Employees |
|---|---|---|---|---|---|
| 2026 Q2 | 10 807 € | ▼ 9% | 2 043 € | 3 184 € | 2 |
| 2026 Q1 | 12 317 € | ▼ 18% | 2 093 € | 3 785 € | 2 |
| 2025 Q4 | 9 526 € | ▼ 44% | 2 073 € | 3 044 € | 2 |
| 2025 Q3 | 16 677 € | ▲ 121% | 2 073 € | 4 829 € | 2 |
| 2025 Q2 | 11 885 € | ▼ 35% | 2 073 € | 3 832 € | 2 |
| 2025 Q1 | 15 096 € | ▲ 67% | 2 104 € | 4 039 € | 2 |
| 2024 Q4 | 17 017 € | ▲ 40% | 2 029 € | 4 260 € | 2 |
| 2024 Q3 | 7 551 € | ▼ 11% | 2 029 € | 2 309 € | 2 |
| 2024 Q2 | 18 237 € | ▲ 112% | 1 353 € | 3 879 € | 2 |
| 2024 Q1 | 9 021 € | ▼ 62% | 2 112 € | 2 799 € | 2 |
| 2023 Q4 | 12 170 € | ▲ 18% | 2 099 € | 3 146 € | 2 |
| 2023 Q3 | 8 457 € | ▼ 28% | 1 400 € | 2 146 € | 2 |
Show full history (18 quarters)
| 2023 Q2 | 8 606 € | ▼ 40% | 2 099 € | 2 615 € | 2 |
| 2023 Q1 | 23 589 € | ▲ 70% | 2 176 € | 5 711 € | 2 |
| 2022 Q4 | 10 348 € | 2 217 € | 3 053 € | 2 | |
| 2022 Q3 | 11 807 € | 2 058 € | 3 465 € | 2 | |
| 2022 Q2 | 14 396 € | 2 225 € | 4 216 € | 2 | |
| 2022 Q1 | 13 914 € | 2 031 € | 4 103 € | 2 |
Tax and Customs Board, published on the 10th of the month following the quarter. State taxes include employment taxes. CC BY-SA 3.0
Annual reports
5 yr
| 2025 | 2024 | 2023 | 2022 | 2021 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Sales revenue | 56 281 € | ▲ 13% | 49 817 € | ▲ 5% | 47 490 € | ▼ 15% | 55 903 € | ▼ 5% | 58 785 € |
| Profit | 6 495 € | ▲ into profit | -15 036 € | ▼ 262% | -4 155 € | ▼ 68× | -61 € | ▲ 99% | -6 921 € |
| Profit margin | 11,5% | -30,2% | -8,7% | -0,1% | -11,8% | ||||
| Retained earnings | 1 683 € | ▼ 90% | 16 719 € | ▼ 20% | 20 873 € | 0% | 20 933 € | ▼ 25% | 27 854 € |
| Cash | 5 852 € | ▼ 35% | 8 969 € | ▲ 81% | 4 951 € | ▼ 17% | 5 954 € | ▼ 21% | 7 569 € |
| Current assets | 14 601 € | ▲ 30% | 11 222 € | ▼ 25% | 14 931 € | ▼ 29% | 21 046 € | ▲ 11% | 19 017 € |
| Fixed assets | 1 417 € | ▼ 37% | 2 240 € | ▼ 85% | 15 279 € | ▼ 19% | 18 888 € | ▼ 16% | 22 515 € |
| Assets | 16 018 € | ▲ 19% | 13 462 € | ▼ 55% | 30 210 € | ▼ 24% | 39 934 € | ▼ 4% | 41 532 € |
| Current liabilities | 4 965 € | ▼ 44% | 8 904 € | ▲ 38% | 6 450 € | ▼ 31% | 9 343 € | ▲ 15% | 8 095 € |
| Long-term liabilities | 0 € | 0 € | ▼ 100% | 4 167 € | ▼ 39% | 6 844 € | ▼ 29% | 9 629 € | |
| Total liabilities | 4 965 € | ▼ 44% | 8 904 € | ▼ 16% | 10 617 € | ▼ 34% | 16 187 € | ▼ 9% | 17 724 € |
| Equity | 11 053 € | ▲ 142% | 4 558 € | ▼ 77% | 19 593 € | ▼ 17% | 23 747 € | 0% | 23 808 € |
| Labour costs | -27 593 € | ▼ 9% | -25 401 € | ▲ 1% | -25 659 € | ▲ 9% | -28 309 € | ▼ 5% | -27 055 € |
| Employees | 2 | 0% | 2 | 0% | 2 | 0% | 2 | 0% | 2 |
| Filed | 09.06.2026 | 24.06.2025 | 27.06.2024 | 16.05.2023 | 07.06.2022 | ||||
| Report | PDF ↓ | PDF ↓ | PDF ↓ | PDF ↓ | PDF ↓ |
▲ growth, ▼ decline compared to the previous year (growth in liabilities is red). Business Register, annual reports. CC BY 4.0
Revenue by activity
2025
| Activity | EMTAK | Sales revenue | Osa |
|---|---|---|---|
| Technical testing and analysis main activity | 71209 | 56 281 € | 100% |
2025 annual report, RIK open data
Real estate
e-kinnistusraamat
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Source: e-kinnistusraamat (Centre of Registers and Information Systems), basic data
Debts and court cases
clean
No tax debt · Tax Board 05.10.2026
Tax Board debtor list (daily), Official Announcements, State Gazette. The Tax Board publishes only today's list; earlier history is collected by Firmo.
Enforcement, payment orders and notices
clean
Official Announcements contain no enforcement, payment order or tax authority notices about the company.
Official Announcements (CC BY-SA 4.0). Enforcement proceedings, payment orders or tax decisions are published there only if they cannot be delivered to the company otherwise. The enforcement register is not public, so the absence of a notice does not mean there are no claims.
State: transactions, tenders, grants
5 677 € makseid
Transactions with state institutions
2025183 €
20245 263 €
2023230 €
Largest payers
| OÜ Rail Baltic Estonia | 3 227 € |
| Ida-Tallinna Keskhaigla AS | 2 267 € |
| Sisekaitseakadeemia | 183 € |
All payments by month
| Month | Payer | Type | Field | Amount |
|---|---|---|---|---|
| 04.2025 | Sisekaitseakadeemia | Fixed assets | Tertiary education | 183 € |
| 10.2024 | OÜ Rail Baltic Estonia | Operating costs | Rail transport | 551 € |
| 06.2024 | Ida-Tallinna Keskhaigla AS | Operating costs | General hospital services | 228 € |
| 04.2024 | OÜ Rail Baltic Estonia | Operating costs | Rail transport | 2 675 € |
| 01.2024 | Ida-Tallinna Keskhaigla AS | Operating costs | General hospital services | 1 808 € |
| 07.2023 | Ida-Tallinna Keskhaigla AS | Operating costs | General hospital services | 230 € |
Riigi Tugiteenuste Keskus, Saldo makseandmikud
Holdings in other companies
0
No holdings in other companies
Companies linked via the board
1
Sorted by revenue (latest report or 4 quarters).
Top 20 in activity: Technical testing and analysis
20
| # | Company | Revenue |
|---|---|---|
| 1 | KIWA Estonia OÜ | 5,8 m € |
| 2 | OÜ Eesti Keskkonnauuringute Keskus | 5,4 m € |
| 3 | AmSpec Estonia OÜ | 3,8 m € |
| 4 | Bureau Veritas Eesti Osaühing | 3,6 m € |
| 5 | Digimeerik OÜ | 3,2 m € |
| 6 | Inspectorate Estonia Aktsiaselts | 3,1 m € |
| 7 | Riigi Laboriuuringute ja Riskihindamise Keskus | 3,0 m € |
| 8 | Tehnomet Survey OÜ | 2,7 m € |
| 9 | Saybolt Eesti AS | 2,3 m € |
| 10 | SGS Eesti Aktsiaselts | 2,0 m € |
| 11 | DNV Estonia OÜ | 1,9 m € |
| 12 | Hepta Insights OÜ | 1,4 m € |
| 13 | MTÜ THE BALTIC UNION FOR EXPORT PROMOTION OF AGRICULTURAL PRODUCTION | 1,3 m € |
| 14 | OÜ Analiit | 1,0 m € |
| 15 | BM Certification Estonia OÜ | 940 k € |
| 16 | Osaühing Elme TKS | 937 k € |
| 17 | Collision Sciences Europe OÜ | 827 k € |
| 18 | NCS Estonia OÜ | 804 k € |
| 19 | Nondestructive testing OÜ | 746 k € |
| 20 | OSAÜHING HARBORT | 727 k € |
Revenue from the latest annual report, otherwise Tax Board revenue for 4 quarters. All companies in this activity
Licences, domains
2 records
Activity licences (MTR and environmental)
| Field | Licence number | Valid from |
|---|---|---|
| Elektritööd | TEL001039 | 22.07.2008 |
Domains
| Domain | Source |
|---|---|
| tku.ee |
History and notices
10
| Date | Type | Content |
|---|---|---|
| 01.09.2023 | Entry | Amendment entry |
| 15.10.2019 | Entry | Amendment entry |
| 23.08.2018 | Entry | Amendment entry |
| 20.03.2018 | Entry | Amendment entry |
| 16.01.2018 | Entry | Amendment entry |
| 13.01.2016 | Entry | Amendment entry |
| 03.12.2008 | Tegevusalade kustutamine registrikaardilt | Amendment entry |
| 28.10.2008 | Kandemäärus ex officio | Amendment entry |
| 23.04.2004 | Jaatav kandeotsus | Amendment entry |
| 03.07.2002 | Jaatav kandeotsus | Avaldatav muutmiskanne |