Patendibüroo KÄOSAAR OÜ
- Registry code
- 10081689
- VAT number
- EE100019975
- Address
- Tartu maakond, Tartu linn, Tartu linn, Tähe tn 94, 50107
- Registered
- 21.08.1996 · 30 yrs
- Activity
- Legal activities 69109
- Capital
- 30 000 €
- i•••@k•••.eeLog in to see
- Phone
- +372 •• ••••Log in to see
- Website
- https://www.kaosaar.ee
Business Register 08.10.2026
Sales revenue899 k €-15%2025 annual report
Profit32 875 €2025 annual report
Employees10Tax Board 2026 Q2
Average gross salary2 882 €estimate, Tax Board 2026 Q2
Labour taxes per quarter44 100 €Tax Board 2026 Q2
Cash510 k €Cash 31.12.2025, annual report
Tax debt0 €Tax Board debtor list 07.10.2026
Revenue 12 months1,2 m €+2%Tax Board, last 4 quarters
State taxes 12 months309 k €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
Email right away on tax debt, bankruptcy or board changeRatingAA → AAA
In tax debt0 days since 26.09.2026
Revenue 12 months▲ 2% vs a year earlier
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Board and owners
3 persons
| Board 3 | ||
|---|---|---|
| Anneli Kapp1 companyno tax debt | Personal ID ↗ | 26.03.2014 |
| Kalev Käosaar9 companies1 with tax debt | Personal ID ↗ | 26.10.2007 |
| Kristiina Aasna2 companiesno tax debt | Personal ID ↗ | 12.03.2026 |
| Shareholders 7 | ||
| Kalev Käosaar | 34,0% 10 200 € | 09.06.2025 |
| Anneli Kapp | 31,0% 9 300 € | 31.03.2026 |
| Aivo Arula | 10,0% 3 000 € | 31.03.2026 |
| Kristiina Aasna | 10,0% 3 000 € | 08.04.2025 |
| Adrien Hanouar Renaudo | 5,0% 1 500 € | 09.09.2024 |
| Kärt Kuuseväli | 5,0% 1 500 € | 01.09.2023 |
| Patendibüroo KÄOSAAR OÜ | 5,0% 1 500 € | 31.03.2026 |
| Beneficial owners 2 | ||
| Anneli Kapp1 companyno tax debtdirect holding | 09.10.2018 | |
| Kalev Käosaar9 companies1 with tax debtdirect holding | 09.10.2018 | |
Business Register open data
Quarterly taxes and revenue
2026 Q2
State taxes / revenue28,8%
Labour taxes / revenue13,7%
Revenue per employee per month10 696 €
Gross salary (estimate)2 882 €
Net salary (estimate)2 321 €
2026 Q2. Wage is estimated from employment taxes.
| Quarter | Revenue | Change y/y | Labour taxes | State taxes | Employees |
|---|---|---|---|---|---|
| 2026 Q2 | 320 872 € | ▲ 23% | 44 100 € | 92 387 € | 10 |
| 2026 Q1 | 256 412 € | ▼ 2% | 46 675 € | 65 230 € | 10 |
| 2025 Q4 | 322 462 € | ▲ 1% | 49 683 € | 80 681 € | 11 |
| 2025 Q3 | 277 821 € | ▼ 11% | 49 622 € | 71 019 € | 11 |
| 2025 Q2 | 259 855 € | ▼ 37% | 48 771 € | 101 383 € | 11 |
| 2025 Q1 | 262 863 € | ▼ 41% | 47 511 € | 69 598 € | 11 |
| 2024 Q4 | 319 528 € | ▼ 3% | 50 502 € | 83 150 € | 11 |
| 2024 Q3 | 311 712 € | ▼ 5% | 45 844 € | 71 890 € | 12 |
| 2024 Q2 | 414 048 € | ▲ 25% | 41 060 € | 97 461 € | 11 |
| 2024 Q1 | 442 503 € | ▲ 26% | 49 775 € | 102 456 € | 10 |
| 2023 Q4 | 330 829 € | ▼ 35% | 43 793 € | 69 157 € | 10 |
| 2023 Q3 | 327 783 € | ▼ 1% | 43 088 € | 68 548 € | 12 |
Show full history (18 quarters)
| 2023 Q2 | 332 117 € | ▲ 8% | 41 876 € | 66 490 € | 13 |
| 2023 Q1 | 349 871 € | ▲ 13% | 48 060 € | 95 671 € | 14 |
| 2022 Q4 | 505 883 € | 42 856 € | 85 588 € | 14 | |
| 2022 Q3 | 329 913 € | 40 540 € | 63 459 € | 14 | |
| 2022 Q2 | 308 159 € | 45 973 € | 77 026 € | 14 | |
| 2022 Q1 | 309 379 € | 43 233 € | 62 961 € | 15 |
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 | 899 k € | ▼ 15% | 1,1 m € | ▼ 4% | 1,1 m € | ▲ 2% | 1,1 m € | ▼ 7% | 1,2 m € |
| Profit | 32 875 € | ▼ 72% | 119 k € | ▼ 38% | 193 k € | ▲ 46% | 132 k € | ▲ 110% | 62 779 € |
| Profit margin | 3,7% | 11,2% | 17,5% | 12,2% | 5,4% | ||||
| Retained earnings | 705 k € | ▲ 1% | 697 k € | ▲ 4% | 671 k € | ▲ 5% | 636 k € | ▲ 4% | 612 k € |
| Cash | 510 k € | ▼ 14% | 592 k € | ▲ 21% | 490 k € | ▲ 6% | 462 k € | ▲ 32% | 350 k € |
| Current assets | 837 k € | ▼ 10% | 927 k € | ▼ 6% | 981 k € | ▲ 11% | 886 k € | ▲ 16% | 763 k € |
| Fixed assets | 6 742 € | ▼ 7% | 7 211 € | ▼ 21% | 9 087 € | ▼ 17% | 10 963 € | ▼ 15% | 12 839 € |
| Assets | 844 k € | ▼ 10% | 934 k € | ▼ 6% | 990 k € | ▲ 10% | 897 k € | ▲ 16% | 776 k € |
| Current liabilities | 73 521 € | ▼ 15% | 86 148 € | ▼ 11% | 96 381 € | ▼ 4% | 101 k € | ▲ 38% | 72 714 € |
| Total liabilities | 73 521 € | ▼ 15% | 86 148 € | ▼ 11% | 96 381 € | ▼ 4% | 101 k € | ▲ 38% | 72 714 € |
| Equity | 771 k € | ▼ 9% | 848 k € | ▼ 5% | 894 k € | ▲ 12% | 796 k € | ▲ 13% | 703 k € |
| Labour costs | -460 k € | ▼ 4% | -442 k € | ▼ 7% | -413 k € | ▲ 2% | -422 k € | ▲ 9% | -462 k € |
| Employees | 8 | ▼ 11% | 9 | ▼ 10% | 10 | 0% | 10 | ▲ 11% | 9 |
| Filed | 23.04.2026 | 29.04.2025 | 28.02.2024 | 21.02.2023 | 02.04.2022 | ||||
| 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 |
|---|---|---|---|
| Legal activities main activity | 69109 | 899 403 € | 100% |
2025 annual report, RIK open data
Real estate
e-kinnistusraamat
Loading properties…
Source: e-kinnistusraamat (Centre of Registers and Information Systems), basic data
Debts and court cases
clean
No tax debt · Tax Board 07.10.2026
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
94 156 € makseid · 1 toetust
Transactions with state institutions
202624 788 €
202524 901 €
202421 807 €
202322 661 €
Largest payers
| Tartu Ülikool | 37 677 € |
| Tallinna Tehnikaülikool | 18 698 € |
| Tallinna Tehnoloogiakolledž | 8 839 € |
| Ettevõtluse ja Innovatsiooni Sihtasutus | 6 411 € |
| SA Tartu Ülikooli Kliinikum | 5 237 € |
All payments by month
| Month | Payer | Type | Field | Amount |
|---|---|---|---|---|
| 08.2026 | Tallinna Tehnikaülikool | Operating costs | Teadus- ja arendustegevus hariduses | 856 € |
| 07.2026 | Tartu Ülikool | Operating costs | Tertiary education | 3 717 € |
| 07.2026 | Tallinna Tehnikaülikool | Operating costs | Teadus- ja arendustegevus hariduses | 335 € |
| 06.2026 | Tartu Ülikool | Operating costs | Tertiary education | 6 022 € |
| 06.2026 | Tallinna Tehnikaülikool | Operating costs | Teadus- ja arendustegevus hariduses | 862 € |
| 06.2026 | Tartu Linnavalitsus | Operating costs | General economic development projects | 186 € |
| 05.2026 | Tallinna Tehnikaülikool | Other operating expenses | Teadus- ja arendustegevus hariduses | 1 200 € |
| 05.2026 | Eesti Kunstiakadeemia | Operating costs | Tertiary education | 570 € |
| 05.2026 | Tallinna Tehnikaülikool | Operating costs | Teadus- ja arendustegevus hariduses | 372 € |
| 04.2026 | Tallinna Tehnoloogiakolledž | Operating costs | Vocational education | 1 918 € |
| 03.2026 | SA Tartu Ülikooli Kliinikum | Operating costs | General hospital services | 670 € |
| 03.2026 | Tallinna Tehnikaülikool | Operating costs | Teadus- ja arendustegevus hariduses | 615 € |
| 03.2026 | Tallinna Tehnoloogiakolledž | Operating costs | Vocational education | 502 € |
| 03.2026 | Ida-Tallinna Keskhaigla AS | Operating costs | General hospital services | 443 € |
| 03.2026 | Rahvusooper Estonia | Operating costs | Theatres | 393 € |
| 02.2026 | Tallinna Tehnikaülikool | Operating costs | Teadus- ja arendustegevus hariduses | 1 464 € |
| 02.2026 | Tartu Ülikool | Operating costs | Tertiary education | 124 € |
| 01.2026 | Tallinna Tehnikaülikool | Operating costs | Teadus- ja arendustegevus hariduses | 3 184 € |
| 01.2026 | Tartu Linnavalitsus | Operating costs | Other general government services | 731 € |
| 01.2026 | SA Tartu Ärinõuandla | Operating costs | General economic and trade policy | 624 € |
| 12.2025 | Tartu Ülikool | Operating costs | Tertiary education | 393 € |
| 11.2025 | Tallinna Tehnikaülikool | Operating costs | Teadus- ja arendustegevus hariduses | 1 389 € |
| 11.2025 | Tartu Linnavalitsus | Operating costs | Other general government services | 372 € |
| 09.2025 | Tallinna Tehnoloogiakolledž | Operating costs | Vocational education | 6 418 € |
| 09.2025 | Tartu Ülikool | Operating costs | Tertiary education | 1 670 € |
| 06.2025 | Tallinna Tehnikaülikool | Operating costs | Teadus- ja arendustegevus hariduses | 848 € |
| 05.2025 | Tartu Linnavalitsus | Operating costs | Other general government services | 903 € |
| 04.2025 | MTÜ Tartu Üliõpilasmaja | Operating costs | Leisure events | 122 € |
| 03.2025 | Tallinna Tehnikaülikool | Operating costs | Teadus- ja arendustegevus hariduses | 1 708 € |
| 03.2025 | SA Tartu Ülikooli Kliinikum | Operating costs | General hospital services | 659 € |
| 03.2025 | Tartu Linnavalitsus | Operating costs | Other leisure, culture, religion, incl. administration | 366 € |
| 03.2025 | Eesti Rahvakultuuri Keskus | Operating costs | Folk culture | 293 € |
| 03.2025 | Tallinna Tehnikaülikool | Other operating expenses | Teadus- ja arendustegevus hariduses | 225 € |
| 02.2025 | Tartu Ülikool | Operating costs | Tertiary education | 9 536 € |
| 12.2024 | Tartu Ülikool | Operating costs | Tertiary education | 1 159 € |
| 12.2024 | MTÜ Tartu Üliõpilasmaja | Operating costs | Leisure events | 450 € |
| 11.2024 | Tartu Ülikool | Operating costs | Tertiary education | 6 649 € |
| 11.2024 | Tartu Linnavalitsus | Operating costs | Other leisure, culture, religion, incl. administration | 1 806 € |
| 10.2024 | Tartu Ülikool | Operating costs | Tertiary education | 3 724 € |
| 10.2024 | Lääneranna Vallavalitsus | Fixed assets | Leisure events | 1 045 € |
| 09.2024 | Eesti Rahvakultuuri Keskus | Operating costs | Folk culture | 2 347 € |
| 09.2024 | Lääneranna Vallavalitsus | Operating costs | Municipal government | 130 € |
| 08.2024 | Tartu Ülikool | Operating costs | Tertiary education | 147 € |
| 07.2024 | Tartu Ülikool | Operating costs | Tertiary education | 154 € |
| 06.2024 | Tartu Ülikool | Operating costs | Tertiary education | 165 € |
| 04.2024 | Tartu Ülikool | Operating costs | Tertiary education | 769 € |
| 04.2024 | SA Tartu Ülikooli Kliinikum | Operating costs | General hospital services | 439 € |
| 03.2024 | SA Tartu Ülikooli Kliinikum | Operating costs | General hospital services | 659 € |
| 03.2024 | Lääneranna Vallavalitsus | Operating costs | Municipal government | 404 € |
| 03.2024 | Tartu Linnatransport | Operating costs | Public transport organisation | 244 € |
| 02.2024 | Tartu Ülikool | Operating costs | Tertiary education | 1 078 € |
| 01.2024 | Tartu Ülikool | Operating costs | Tertiary education | 439 € |
| 12.2023 | Tartu Ülikool | Operating costs | Tertiary education | 438 € |
| 12.2023 | Põlvamaa Arenduskeskus SA | Operating costs | General economic and trade policy | 156 € |
| 11.2023 | Lääne-Tallinna Keskhaigla AS | Operating costs | Specialised hospital services | 734 € |
| 11.2023 | Lääne-Tallinna Keskhaigla AS | Other operating expenses | Specialised hospital services | 416 € |
| 10.2023 | Tartu Ülikool | Operating costs | Tertiary education | 566 € |
| 09.2023 | Tartu Ülikool | Operating costs | Tertiary education | 929 € |
| 06.2023 | Tallinna Tehnikaülikool | Operating costs | Teadus- ja arendustegevus hariduses | 5 640 € |
| 06.2023 | Lääneranna Vallavalitsus | Fixed assets | Leisure events | 2 472 € |
| 06.2023 | Põlvamaa Arenduskeskus SA | Labour costs | General economic and trade policy | 535 € |
| 06.2023 | Jõelähtme Vallavalitsus | Operating costs | Municipal government | 250 € |
| 03.2023 | SA Tartu Ülikooli Kliinikum | Operating costs | General hospital services | 2 811 € |
| 03.2023 | Jõelähtme Vallavalitsus | Operating costs | Municipal government | 1 303 € |
| 01.2023 | Ettevõtluse ja Innovatsiooni Sihtasutus | Operating costs | General economic and trade policy | 6 411 € |
Riigi Tugiteenuste Keskus, Saldo makseandmikud
Toetuse saanud projektid
| Projekt | Meede | Periood | Toetus | Välja makstud |
|---|---|---|---|---|
| Elukestev õpe! Lõpetatud · Ettevõtluse ja Innovatsiooni Sihtasutus | Teadmiste ja oskuste arendamise toetus | 21.10.2009 – 20.10.2010 | 541 € |
Riigi Tugiteenuste Keskus, toetatud projektid
Holdings in other companies
1
| Company | Code | Holding | Since | Revenue |
|---|---|---|---|---|
| Patendibüroo KÄOSAAR OÜ | 10081689 | 5,0% | 31.03.2026 | 899 k € |
Business Register
Companies linked via the board
9
Purtse Pruulikoda OÜKalev Käosaar259 k €BTallinn, Suur-Patarei tn 2 korteriühistuKalev Käosaar35 672 €AKolmvara OÜKalev Käosaar20 242 €ASeven Est OÜKalev Käosaar7 066 €AKVeeb OÜKristiina Aasna · Likvideerimisel0 €CPEPPERMINT Ventures and IP (EE Holding) OÜKalev Käosaar0 €BBpeppermint.one OÜKalev Käosaar0 €BBpeppermint.services OÜKalev Käosaar0 €BBPatendivolinike KodaKalev Käosaar0 €BBB
Sorted by revenue (latest report or 4 quarters).
Top 20 in activity: Legal activities
20
| # | Company | Revenue |
|---|---|---|
| 1 | Quinn OÜ | 6,7 m € |
| 2 | Jobbatical OÜ | 4,0 m € |
| 3 | Cowork Space OÜ | 2,4 m € |
| 4 | AAA Patendibüroo OÜ | 1,5 m € |
| 5 | CentilLaw OÜ | 1,4 m € |
| 6 | Legarithm OÜ | 1,0 m € |
| 7 | Clearing Network Operations OÜ | 941 k € |
| 8 | Patendibüroo KÄOSAAR OÜ | 899 k € |
| 9 | BS Capital OÜ | 823 k € |
| 10 | AndAnd Operations OÜ | 600 k € |
| 11 | Wilson Legal OÜ | 594 k € |
| 12 | AristocratGlobal OÜ | 548 k € |
| 13 | DEAX Õigusbüroo OÜ | 530 k € |
| 14 | Patendibüroo TURVAJA OÜ | 433 k € |
| 15 | OÜ Sasson | 421 k € |
| 16 | Buckthorn OÜ | 412 k € |
| 17 | OÜ Julianuse Õigusbüroo | 390 k € |
| 18 | OÜ CAVERE ÕIGUSBÜROO | 361 k € |
| 19 | Equinord - International Law Counsellors OÜ | 352 k € |
| 20 | eBusiness Solutions OÜ | 278 k € |
Revenue from the latest annual report, otherwise Tax Board revenue for 4 quarters. All companies in this activity
Domains
1 records
Domains
| Domain | Source |
|---|---|
| kaosaar.ee | Business Register |
History and notices
30
| Date | Type | Content |
|---|---|---|
| 31.03.2026 | Entry | Amendment entry |
| 12.03.2026 | Entry | Amendment entry |
| 09.06.2025 | Entry | Amendment entry |
| 20.05.2025 | Kandemäärus ex officio | Amendment entry |
| 20.05.2025 | Lõivu tasumise nõudmise määrus (NAP) | Osanike muutmine |
| 25.04.2025 | Order to remedy deficiencies | Osanike muutmine |
| 08.04.2025 | Entry | Amendment entry |
| 28.03.2025 | Order to remedy deficiencies | Osanike muutmine |
| 17.10.2024 | Negative entry order: deficiencies not remedied | Osanike muutmine |
| 09.09.2024 | Entry | Amendment entry |
| 09.09.2024 | Order to remedy deficiencies | Osanike muutmine |
| 01.09.2023 | Entry | Amendment entry |
| 18.01.2018 | Entry | Amendment entry |
| 22.12.2017 | Entry | Amendment entry |
| 03.12.2017 | Entry | Amendment entry |
| 08.09.2016 | Entry | Amendment entry |
| 06.09.2016 | Order to remedy deficiencies | Amendment entry |
| 17.09.2015 | Entry | Amendment entry |
| 26.03.2014 | Entry | Amendment entry |
| 26.03.2014 | Order to remedy deficiencies | Amendment entry |
| 14.02.2011 | Lõivu tagastamise määrus | Toimiku dokumentide kontroll |
| 26.01.2011 | Entry | Amendment entry |
| 25.01.2011 | Order to remedy deficiencies | Amendment entry |
| 03.12.2008 | Tegevusalade kustutamine registrikaardilt | Amendment entry |
| 04.11.2008 | Entry | Amendment entry |
| 26.10.2007 | Entry | Amendment entry |
| 30.05.2006 | Entry | Kommertspandi kustutamiskanne |
| 23.05.2006 | Kättetoimetatav puuduste kõrvaldamise määrus | Kommertspandi kustutamiskanne |
| 28.10.2002 | ÄS §33 lg 7.1 täitmine | Kommertspandi muutmiskanne |
| 25.10.2002 | Jaatav kandeotsus | Ümberkujundamiskanne uut registrikaarti avamata |