Patendibüroo KÄOSAAR OÜ

Legal form:: Private limited company
Registry code:: 10081689
VAT no.:: EE100019975
Fiscal-year period:: 01.01 - 31.12
Established:: 21.08.1996 (30 y)
Former business names:: Aktsiaselts Käosaar & CO, Patendibüroo Käosaar & Co OÜ
Capital:: 30 000 EUR
Address:: Tähe tn 94, Tartu linn, Tartu linn, Tartu maakond, 50107
Status:: Registered

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Contacts

Phone:: +372 7383051
Email:: info@kaosaar.ee
Website:: https://www.kaosaar.ee

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Industries

PROFESSIONAL, SCIENTIFIC AND TECHNICAL ACTIVITIES
Legal activities and accounting
Legal activities
69109 – Other legal activities

Industry TOPNo. 5 of 171 companies

1.Jobbatical OÜ4.8M €
2.Cowork Space OÜ3.7M €
3.AAA Patendibüroo OÜ1.7M €
4.BS Capital OÜ1.3M €
5.Patendibüroo KÄOSAAR OÜ1.2M €
6.Legarithm OÜ814.8k €
7.Nazareth & Partners OÜ670.4k €
8.Barbashyn & Partners OÜ646.5k €
9.DEAX Õigusbüroo OÜ546.6k €
10.PlusPlus Legal OÜ485.2k €

Main activity 69109 · turnover over the last 4 quarters

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VAT liability

VAT no.	Start	End
EE100019975	01.01.1994	-

Annual reports

Aggregate data

Year	Period	Submitted	Status
2025	01.01.2025 – 31.12.2025	23.04.2026	Valid	PDF
2024	01.01.2024 – 31.12.2024	29.04.2025	Valid	PDF
2023	01.01.2023 – 31.12.2023	28.02.2024	Valid	PDF
2022	01.01.2022 – 31.12.2022	21.02.2023	Valid	PDF
2021	01.01.2021 – 31.12.2021	02.04.2022	Valid	PDF
2020	01.01.2020 – 31.12.2020	22.06.2021	Valid	PDF
2019	01.01.2019 – 31.12.2019	30.06.2020	Valid	PDF
2018	01.01.2018 – 31.12.2018	01.04.2019	Valid	PDF
2017	01.01.2017 – 31.12.2017	26.03.2018	Valid	PDF
2016	01.01.2016 – 31.12.2016	31.03.2017	Valid	PDF
2015	01.01.2015 – 31.12.2015	19.04.2016	Valid	PDF
2014	01.01.2014 – 31.12.2014	16.06.2015	Valid	PDF
2013	01.01.2013 – 31.12.2013	02.05.2014	Valid	PDF
2012	01.01.2012 – 31.12.2012	30.01.2013	Valid	PDF
2011	01.01.2011 – 31.12.2011	28.03.2012	Valid	PDF
2010	01.01.2010 – 31.12.2010	20.05.2011	Valid	PDF
2009	01.01.2009 – 31.12.2009	30.04.2010	Valid	PDF
2008	01.01.2008 – 31.12.2008	07.05.2009	Valid	PDF
2007	01.01.2007 – 31.12.2007	10.06.2008	Valid	PDF
2006	01.01.2006 – 31.12.2006	14.06.2007	Valid	PDF
2005	01.01.2005 – 31.12.2005	29.06.2006	Valid	PDF
2004	01.01.2004 – 31.12.2004	03.06.2005	Valid	PDF
2003	01.01.2003 – 31.12.2003	10.06.2004	Valid	PDF
2002	01.01.2002 – 31.12.2002	20.05.2003	Valid	PDF
2001	01.01.2001 – 31.12.2001	22.05.2002	Valid	PDF
2000	01.01.2000 – 31.12.2000	26.06.2001	Valid	PDF

Unsubmitted declarations

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No unsubmitted declarations as of 27.10.2026.

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Tax debt Reports Declarations Court decisions3 Official announcements–TTJA decisions–Real estate1 .ee domains4 Licenses–Regulations30 Public transactions90 Grants1 State aid–Public procurement–Holdings in companies1 Enforcement proceedings Payment orders

Tax data

Period	State taxes	Labour taxes	Taxable turnover	Employees
2026 Q3	76 873 €	49 220 €	275 689 €−14,1%	10
2026 Q2	92 387 €	44 100 €	320 872 €+25,1%	10
2026 Q1	65 230 €	46 675 €	256 412 €−20,5%	10
Total 2026:	234 490 €	139 995 €	852 973 €
2025 Q4	80 681 €	49 683 €	322 462 €+16,1%	11
2025 Q3	71 019 €	49 622 €	277 821 €+6,9%	11
2025 Q2	101 383 €	48 771 €	259 855 €−1,1%	11
2025 Q1	69 598 €	47 511 €	262 863 €−17,7%	11
Total 2025:	322 681 €	195 587 €	1,12 M €
2024 Q4	83 150 €	50 502 €	319 528 €+2,5%	11
2024 Q3	71 890 €	45 844 €	311 712 €−24,7%	12
2024 Q2	97 461 €	41 060 €	414 048 €−6,4%	11
2024 Q1	102 456 €	49 775 €	442 503 €+33,8%	10
Total 2024:	354 957 €	187 181 €	1,49 M €
2023 Q4	69 157 €	43 793 €	330 829 €+0,9%	10
2023 Q3	68 548 €	43 088 €	327 783 €−1,3%	12
2023 Q2	66 490 €	41 876 €	332 117 €−5,1%	13
2023 Q1	95 671 €	48 060 €	349 871 €−30,8%	14
Total 2023:	299 866 €	176 817 €	1,34 M €
2022 Q4	85 588 €	42 856 €	505 883 €+53,3%	14
2022 Q3	63 459 €	40 540 €	329 913 €+7,1%	14
2022 Q2	77 026 €	45 973 €	308 159 €−0,4%	14
2022 Q1	62 961 €	43 233 €	309 379 €−18,0%	15
Total 2022:	289 034 €	172 602 €	1,45 M €
2021 Q4	63 469,06 €	44 589,15 €	377 094,05 €+30,3%	14
2021 Q3	56 444,23 €	47 267,18 €	289 412,38 €−32,4%	16
2021 Q2	115 275,42 €	66 019,73 €	427 877,63 €+13,5%	17
2021 Q1	61 812,05 €	51 773,31 €	377 126,25 €+1,7%	17
Total 2021:	297 000,76 €	209 649,37 €	1,47 M €
2020 Q4	62 608,02 €	52 662,60 €	370 934,87 €+13,1%	17
2020 Q3	62 391,93 €	49 644,98 €	327 961,44 €−16,3%	17
2020 Q2	105 651,83 €	57 971,55 €	391 714,58 €−4,4%	17
2020 Q1	59 177 €	48 184 €	409 936 €+28,1%	17
Total 2020:	289 828,78 €	208 463,13 €	1,50 M €
2019 Q4	57 180 €	54 450 €	320 019 €−4,2%	17
2019 Q3	46 912 €	49 669 €	333 938 €−12,3%	17
2019 Q2	110 750 €	54 873 €	380 581 €−4,7%	17
2019 Q1	51 839 €	50 138 €	399 193 €−7,2%	17
Total 2019:	266 681 €	209 130 €	1,43 M €
2018 Q4	54 128 €	52 387 €	430 325 €+30,3%	17
2018 Q3	45 107 €	47 263 €	330 292 €−14,3%	16
2018 Q2	101 787 €	48 834 €	385 436 €+2,6%	16
2018 Q1	40 244 €	41 964 €	375 503 €+10,3%	16
Total 2018:	241 266 €	190 448 €	1,52 M €
2017 Q4	42 085 €	44 333 €	340 364 €+1,5%	15
2017 Q3	33 874 €	36 002 €	335 414 €+9,5%	15
2017 Q2	86 820 €	34 499 €	306 397 €+2,4%	14
2017 Q1	37 346 €	38 809 €	299 176 €−8,0%	14
Total 2017:	200 125 €	153 643 €	1,28 M €
2016 Q4	43 670 €	46 162 €	325 275 €+17,8%	12
2016 Q3	37 696 €	39 201 €	276 225 €−0,2%	12
2016 Q2	89 786 €	39 273 €	276 728 €+0,1%	12
2016 Q1	37 583 €	39 232 €	276 444 €−10,7%	12
Total 2016:	208 735 €	163 868 €	1,15 M €
2015 Q4	43 953 €	46 259 €	309 674 €+23,8%	12
2015 Q3	35 530 €	37 380 €	250 231 €+4,6%	12
2015 Q2	78 876 €	35 729 €	239 183 €−1,2%	12
2015 Q1	34 231 €	36 171 €	242 137 €	12
Total 2015:	192 590 €	155 539 €	1,04 M €

Revenue by industry

	2023	2024	2025
Other legal activities	1 098 635 €	1 056 091 €	899 403 €

Tax debts

No tax debt found

No tax debt as of 27.10.2026

Representatives

	Personal ID code
Kristiina Aasna	48210XXXXXX	08.10.1982 (44)	Board member	12.03.2026	-
Anneli Kapp	47910XXXXXX	25.10.1979 (47)	Board member	26.03.2014	-
Kalev Käosaar	37401XXXXXX	26.01.1974 (52)	Board member	26.10.2007	-

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Shareholders

	Personal ID code
Kalev Käosaar	37401XXXXXX	26.01.1974 (52)	Shareholder	10 200 EUR	34,00%	Sole ownership	09.06.2025	-
Anneli Kapp	47910XXXXXX	25.10.1979 (47)	Shareholder	9 300 EUR	31,00%	Sole ownership	31.03.2026	-
Kristiina Aasna	48210XXXXXX	08.10.1982 (44)	Shareholder	3 000 EUR	10,00%	Sole ownership	08.04.2025	-
Aivo Arula	36310XXXXXX	05.10.1963 (63)	Shareholder	3 000 EUR	10,00%	Sole ownership	31.03.2026	-
Kärt Kuuseväli	48604XXXXXX	27.04.1986 (40)	Shareholder	1 500 EUR	5,00%	Sole ownership	01.09.2023	-

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Ultimate beneficial owners

	Personal ID code
Anneli Kapp	47910XXXXXX	25.10.1979 (47)	Direct holding	09.10.2018	-
Kalev Käosaar	37401XXXXXX	26.01.1974 (52)	Direct holding	09.10.2018	-

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Holdings in companies


Patendibüroo KÄOSAAR OÜ	21.08.1996	Shareholder	1 500 EUR	5,00%	Sole ownership	31.03.2026	-

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2026 Q3

Turnover

Amount: 275 689 €
Monthly average: 91 896 €
Per employee: 9 190 €
Equity ratio: 306,32%

Labour taxes

Turnover ratio: 17,85%
Tax ratio: 64,03%
Monthly average: 16 407 €
Per employee: 1 641 €

State taxes

Monthly average: 25 624 €
Turnover ratio: 27,88%

Estimated salary

Gross salary: 2 991 €
Net salary: 2 403 €

Aggregate data

Last 5 yrsAll

	2025	2024	2023	2022	2021	2020	2019
Current assets	837 485 €−9,6%	926 818 €−5,6%	981 398 €+10,8%	886 006 €+16,2%	762 801 €−12,5%	871 435 €−5,0%	917 101 €
Non-current assets	6 742 €−6,5%	7 211 €−20,6%	9 087 €−17,1%	10 963 €−14,6%	12 839 €−51,1%	26 281 €−39,7%	43 571 €
Total assets	844 227 €−9,6%	934 029 €−5,7%	990 485 €+10,4%	896 969 €+15,6%	775 640 €−13,6%	897 716 €−6,6%	960 672 €
Short-term liabilities	73 521 €−14,7%	86 148 €−10,6%	96 381 €−4,2%	100 639 €+38,4%	72 714 €+25,2%	58 068 €−32,4%	85 868 €
Long-term liabilities	-	-	-	-	-	-	-
Total liabilities	73 521 €−14,7%	86 148 €−10,6%	96 381 €−4,2%	100 639 €+38,4%	72 714 €+25,2%	58 068 €−32,4%	85 868 €
Share or stock capital	-	-	-	-	-	-	-
Retained earnings	704 831 €+1,1%	696 854 €+3,9%	670 704 €+5,4%	636 176 €+4,0%	611 647 €−9,6%	676 805 €+6,7%	634 360 €
Net profit	32 875 €−72,3%	118 777 €−38,3%	192 650 €+46,3%	131 654 €+110%	62 779 €−51,7%	129 843 €−37,4%	207 444 €
Equity	770 706 €−9,1%	847 881 €−5,2%	894 104 €+12,3%	796 330 €+13,3%	702 926 €−16,3%	839 648 €−4,0%	874 804 €
Turnover	899 403 €−14,8%	1 056 091 €−3,9%	1 098 635 €+2,1%	1 076 347 €−7,0%	1 157 058 €−5,6%	1 225 970 €−6,0%	1 304 718 €
Profit margin	3,7%	11,2%	17,5%	12,2%	5,4%	10,6%	15,9%

Financial ratios

	2022	2021
Profit and cash flow
EBITDA	141 498 €	118 442 €
Liquidity
Current ratio	8,8	10,5
Quick ratio	8,8	10,5
Cash ratio	4,6	4,8
Efficiency
Days sales outstanding (dso)	141,8	125,4
Asset turnover	1,3	1,4
Structure
Debt ratio	0,1	0,1
Profitability
Operating margin	13,0%	9,1%
Net profit margin	12,2%	5,4%
Return on assets (roa)	15,7%	7,5%
Return on equity (roe)	16,5%	8,9%

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Licences & notices

No licenses and notices found

Company has no active licenses and business activity notices

Regulations


Ä 20000855 / 21	31.03.2026	Entry – Amendment entry	-	Entered into force31.03.2026
Ä 20000855 / 20	12.03.2026	Entry – Amendment entry	-	Entered into force12.03.2026
Ä 20000855 / 19	09.06.2025	Entry – Amendment entry	-	Entered into force09.06.2025
Ä 20000855 / M8	20.05.2025	Order demanding payment of fee (NAP) – Change of shareholders	06.06.2025	Entered into force07.06.2025
Ä 20000855 / 18	20.05.2025	Entry order ex-officio – Amendment entry	-	Entered into force20.05.2025

Real estate

		Purpose
Tähe tn 94, Tartu linn, Tartu linn, Tartu maakond	959 m²	Commercial land 100%

Consumer Disputes Committee decisions

No consumer dispute committee decisions found

Company has not been issued consumer dispute committee decisions

Court decisions


2-25-111513/15	Apellatsioonmenetlus	Court ruling	Law of obligations	Margit Jäätma, Indrek Parrest, Kersti Kerstna-Vaks	ECLI:EE:TRRK:2026:2.25.111513.13919	26.08.2026	Open
2-24-126442/9	Kohtu I astme menetlus	Court rulingCompromise ruling	Law of obligations	Merit Helm	ECLI:EE:HMK:2025:2.24.126442.2042	20.02.2025	Open
2-24-126684/15	Kohtu I astme menetlus	Court rulingCompromise ruling	Protection of intellectual property	Anu Uritam	ECLI:EE:HMK:2025:2.24.126684.2511	19.02.2025	Open

Official announcements

No official announcements found

Company has no issued official announcements

Public transactions


21.09.2026	Tallinna Tehnikaülikool	7 837,40 €Received	OPERATING EXPENSESR&D in education
17.09.2026	Tallinna Tehnoloogiakolledž	589 €Received	OPERATING EXPENSESVocational education
01.09.2026	Tallinna Tehnoloogiakolledž	1 278 €Received	OPERATING EXPENSESVocational education
11.08.2026	Tallinna Tehnikaülikool	855,60 €Received	OPERATING EXPENSESR&D in education
16.07.2026	Tartu Ülikool	200,88 €Received	OPERATING EXPENSESTertiary education

Funded projects


Elukestev õpe!1.4.0501.10-1535	Teadmiste ja oskuste arendamise toetusESF · Ettevõtluse ja Innovatsiooni Sihtasutus	21.10.2009 – 20.10.20102007-2013	717,09 €	541,14 €	Completed

State aid

No state aid found

The company has not been granted state aid or de minimis aid

Public procurement contracts

No public procurement contracts found

The company has no public procurement contracts

.ee domains


technotln.ee	Active	23.08.2025	24.08.2027
techno.ee	Active	30.03.2017	31.03.2027
käosaar.ee	Active	23.05.2011	21.12.2026
kaosaar.ee	Active	04.07.2010	04.12.2030

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Enforcement proceedings

No enforcement proceedings found

Company has no active debts with bailiffs

Payment orders

No payment orders found

Company has no court-ordered payment orders

Data comes from public registers.