O3 Technology OÜ

Legal form:: Private limited company
Registry code:: 14062364
VAT no.:: EE101883922
Fiscal-year period:: 01.01 - 31.12
Established:: 06.06.2016 (10 y)
Capital:: 6 000 EUR
Address:: Vesipapi tn 2, Kristiine linnaosa, Tallinn, Harju maakond, 12619
Status:: Registered
LEI code:: 6488JLA2J9GY8E512878
E-invoice reception:: Telema

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Contacts

Phone:: +372 53870338
Email:: info@o3.ee
Website:: https://o3.ee/

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Industries

PROFESSIONAL, SCIENTIFIC AND TECHNICAL ACTIVITIES
Architectural & engineering activities; technical testing and analysis
Architectural & engineering activities and technical consultancy
Engineering activities and related technical consultancy
71121 – Construction engineering design and consultancy

Industry TOPNo. 33 of 1273 companies

33.O3 Technology OÜ1.4M €

Main activity 71121 · turnover over the last 4 quarters

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VAT liability

VAT no.	Start	End
EE101883922	09.06.2016	-

Annual reports

Aggregate data

Year	Period	Submitted	Status
2025	01.01.2025 – 31.12.2025	30.06.2026	Valid	PDF
2024	01.01.2024 – 31.12.2024	30.06.2025	Valid	PDF
2023	01.01.2023 – 31.12.2023	16.04.2024	Valid	PDF
2022	01.01.2022 – 31.12.2022	29.06.2023	Valid	PDF
2021	01.01.2021 – 31.12.2021	05.05.2022	Valid	PDF
2020	01.01.2020 – 31.12.2020	11.06.2021	Valid	PDF
2019	01.01.2019 – 31.12.2019	17.04.2020	Valid	PDF
2018	01.01.2018 – 31.12.2018	12.04.2019	Valid	PDF
2017	01.01.2017 – 31.12.2017	02.03.2018	Valid	PDF
2016	06.06.2016 – 31.12.2016	27.02.2017	Valid	PDF

Unsubmitted declarations

No unsubmitted declarations found

No unsubmitted declarations as of 21.10.2026.

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Tax debt Reports Declarations Court decisions–Official announcements–TTJA decisions–Real estate–.ee domains1 Licenses3 Regulations17 Public transactions24 Grants1 State aid3 Public procurement1 Holdings in companies2 Enforcement proceedings Payment orders

Tax data

Period	State taxes	Labour taxes	Taxable turnover	Employees
2026 Q3	38 939 €	22 121 €	319 542 €−12,1%	3
2026 Q2	49 116 €	22 641 €	363 527 €+22,0%	3
2026 Q1	40 255 €	21 500 €	297 987 €−21,3%	3
Total 2026:	128 310 €	66 262 €	981 056 €
2025 Q4	53 517 €	21 183 €	378 425 €+19,2%	3
2025 Q3	40 115 €	20 834 €	317 581 €−34,6%	3
2025 Q2	67 968 €	20 652 €	485 877 €+11,1%	3
2025 Q1	51 864 €	19 977 €	437 138 €+49,2%	5
Total 2025:	213 464 €	82 646 €	1,62 M €
2024 Q4	11 101 €	18 328 €	293 070 €−16,0%	5
2024 Q3	54 974 €	31 499 €	348 715 €−13,8%	5
2024 Q2	80 861 €	47 511 €	404 614 €+22,6%	8
2024 Q1	58 319 €	39 914 €	330 000 €−5,0%	10
Total 2024:	205 255 €	137 252 €	1,38 M €
2023 Q4	58 458 €	41 659 €	347 422 €+19,3%	10
2023 Q3	40 584 €	43 415 €	291 334 €−19,9%	10
2023 Q2	50 210 €	45 275 €	363 863 €+6,6%	9
2023 Q1	50 583 €	42 623 €	341 294 €−1,9%	9
Total 2023:	199 835 €	172 972 €	1,34 M €
2022 Q4	47 349 €	36 293 €	347 920 €+0,4%	9
2022 Q3	72 886 €	36 800 €	346 532 €−7,2%	9
2022 Q2	44 053 €	19 172 €	373 296 €+31,4%	9
2022 Q1	33 801 €	21 166 €	284 106 €+11,4%	5
Total 2022:	198 089 €	113 431 €	1,35 M €
2021 Q4	30 601,73 €	20 870,20 €	255 128 €+20,4%	6
2021 Q3	29 828,27 €	17 405,40 €	211 878,76 €	6
2021 Q2	19 921,72 €	17 524,50 €	211 806,99 €+4,3%	7
2021 Q1	15 254,17 €	11 865,13 €	203 126,29 €−18,7%	9
Total 2021:	95 605,89 €	67 665,23 €	881 940,04 €
2020 Q4	13 273,15 €	7 382,44 €	249 926,76 €+33,4%	4
2020 Q3	9 244,59 €	8 310,88 €	187 303,44 €−30,3%	4
2020 Q2	29 745,08 €	7 438,35 €	268 862,71 €+12,7%	5
2020 Q1	14 205 €	8 298 €	238 576 €−5,8%	5
Total 2020:	66 467,82 €	31 429,67 €	944 668,91 €
2019 Q4	15 998 €	8 391 €	253 331 €+11,0%	5
2019 Q3	17 743 €	5 369 €	228 249 €+1,5%	5
2019 Q2	15 259 €	4 252 €	224 772 €+38,6%	4
2019 Q1	12 800 €	4 697 €	162 150 €−6,6%	4
Total 2019:	61 800 €	22 709 €	868 502 €
2018 Q4	10 999 €	4 191 €	173 588 €−0,7%	5
2018 Q3	17 509 €	6 770 €	174 740 €+31,4%	5
2018 Q2	23 574 €	4 992 €	132 987 €−30,1%	5
2018 Q1	24 737 €	4 700 €	190 379 €+6,2%	3
Total 2018:	76 819 €	20 653 €	671 694 €
2017 Q4	10 613 €	1 688 €	179 218 €+59,3%	4
2017 Q3	2 380 €	0 €	112 505 €+18,4%	0
2017 Q2	11 051 €	0 €	95 035 €+31,5%	0
2017 Q1	6 398 €	0 €	72 268 €	0
Total 2017:	30 442 €	1 688 €	459 026 €
2016 Q4	4 348 €	0 €	0 €	0
2016 Q3	0 €	0 €	0 €	0
2016 Q2	0 €	0 €	0 €	0
Total 2016:	4 348 €	0 €	0 €

Revenue by industry

	2023	2024	2025
Construction engineering design and consultancy	1 322 122 €	1 460 629 €	1 458 773 €

Tax debts

No tax debt found

No tax debt as of 21.10.2026

Representatives

	Personal ID code
Mats Viisileht	39001XXXXXX	04.01.1990 (36)	Board member	24.04.2024	-
Mihkel Hiielaid	39307XXXXXX	07.07.1993 (33)	Board member	24.04.2024	-

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Shareholders

	Personal ID code
Martin Kiil	38903XXXXXX	09.03.1989 (37)	Shareholder	1 500 EUR	25,00%	Sole ownership	02.09.2023	-
Mikk Tasa	38705XXXXXX	11.05.1987 (39)	Shareholder	1 500 EUR	25,00%	Sole ownership	02.09.2023	-
Hiimek OÜ	16232043	18.05.2021 (5)	Shareholder	1 500 EUR	25,00%	Sole ownership	25.04.2025	-
MAVI OÜ	16925384	20.02.2024 (2)	Shareholder	1 500 EUR	25,00%	Sole ownership	25.04.2025	-

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Other persons

	Personal ID code
Martin Kiil	38903XXXXXX	09.03.1989 (37)	Founder	06.06.2016	-
Mikk Tasa	38705XXXXXX	11.05.1987 (39)	Founder	06.06.2016	-
Targo Pomerants	38710XXXXXX	08.10.1987 (39)	Founder	06.06.2016	-

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Ultimate beneficial owners

	Personal ID code
Martin Kiil	38903XXXXXX	09.03.1989 (37)	Direct holding	16.10.2018	-
Mikk Tasa	38705XXXXXX	11.05.1987 (39)	Direct holding	16.10.2018	-

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Holdings in companies


O3 Energy OÜ	07.07.2017	Shareholder	3 000 EUR	100,00%	Sole ownership	02.09.2023	-
O3 Inseneribüroo OÜ	30.07.2012	Shareholder	2 500 EUR	100,00%	Sole ownership	01.09.2023	-

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2026 Q3

Turnover

Amount: 319 542 €
Monthly average: 106 514 €
Per employee: 35 505 €
Equity ratio: 1 775,23%

Labour taxes

Turnover ratio: 6,92%
Tax ratio: 56,81%
Monthly average: 7 374 €
Per employee: 2 458 €

State taxes

Monthly average: 12 980 €
Turnover ratio: 12,19%

Estimated salary

Gross salary: 4 385 €
Net salary: 3 451 €

Aggregate data

Last 5 yrsAll

	2025	2024	2023	2022	2021	2020	2019
Current assets	351 400 €+7,0%	328 439 €+69,4%	193 865 €−34,5%	296 156 €+0,1%	296 004 €+36,1%	217 438 €+17,0%	185 886 €
Non-current assets	116 079 €−42,2%	200 898 €−20,3%	251 968 €+176%	91 260 €+198%	30 575 €−9,8%	33 894 €+39,4%	24 314 €
Total assets	455 177 €−13,1%	523 516 €+14,8%	455 918 €−5,1%	480 267 €+63,0%	294 613 €+17,2%	251 332 €+19,6%	210 200 €
Short-term liabilities	169 591 €−45,7%	312 335 €+80,5%	173 031 €−3,1%	178 482 €+24,7%	143 144 €+43,6%	99 712 €+11,8%	89 172 €
Long-term liabilities	-	9 700 €−12,5%	11 088 €+290%	2 845 €−33,0%	4 248 €−57,0%	9 887 €	-
Total liabilities	169 591 €−47,3%	322 035 €+74,9%	184 119 €+1,5%	181 327 €+23,0%	147 392 €+34,5%	109 599 €+22,9%	89 172 €
Share or stock capital	-	-	-	-	-	-	-
Retained earnings	228 322 €−12,2%	260 196 €−11,8%	294 865 €+96,9%	149 736 €+2,0%	146 778 €−39,5%	242 486 €+286%	62 829 €
Net profit	100 105 €+878%	-12 874 €+70,5%	-43 570 €−130%	144 485 €+14 421%	995 €−97,8%	45 032 €−18,4%	55 199 €
Equity	285 586 €+14,1%	250 322 €+18,1%	211 924 €−29,1%	298 940 €+98,3%	150 773 €−54,0%	328 017 €+9,3%	300 137 €
Turnover	1 458 773 €−0,1%	1 460 629 €+10,5%	1 322 122 €−0,8%	1 332 173 €+46,1%	911 869 €+4,0%	876 740 €+1,9%	860 461 €
Profit margin	6,9%	-0,9%	-3,3%	10,8%	0,1%	5,1%	6,4%

Financial ratios

	2022	2021
Profit and cash flow
EBITDA	160 144 €	13 520 €
Liquidity
Current ratio	2,5	1,9
Quick ratio	2,5	1,9
Cash ratio	0,7	0,6
Efficiency
Days sales outstanding (dso)	54,3	56,8
Asset turnover	4,0	3,3
Structure
Debt ratio	0,3	0,5
Profitability
Operating margin	11,5%	0,2%
Net profit margin	10,8%	0,1%
Return on assets (roa)	42,8%	0,4%
Return on equity (roe)	56,3%	0,7%

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Licences & notices


Notice of economic activity	FPR000441	Design / engineering	Valid	01.08.2023	-
Notice of economic activity	TEL002925	Electrical works	Valid	22.02.2017	-
Notice of economic activity	EEP003746	Design / engineering	Valid	30.11.2016	-

Regulations


Ä 50031558 / 14	15.07.2026	Entry – Amendment entry under NSPA § 595¹ (1)	-	Entered into force15.07.2026
Ä 50031558 / 13	25.04.2025	Entry – Amendment entry	-	Entered into force25.04.2025
Ä 50031558 / 12	24.04.2024	Entry – Amendment entry	-	Entered into force24.04.2024
Ä 50031558 / 11	19.04.2024	Entry – Amendment entry	-	Entered into force19.04.2024
Ä 50031558 / 10	14.09.2023	Entry – Amendment entry	-	Entered into force14.09.2023

Real estate

No real estate found

Company has no real estate

Consumer Disputes Committee decisions

No consumer dispute committee decisions found

Company has not been issued consumer dispute committee decisions

Court decisions

No court decisions found

The company has no court decisions

Official announcements

No official announcements found

Company has no issued official announcements

Public transactions


04.10.2024	Riigi Kinnisvara Aktsiaselts	6 039 €Received	OPERATING EXPENSESOther general services
29.12.2023	Eesti Teaduste Akadeemia Underi ja Tuglase Kirjandusinstituut	1 920 €Received	OPERATING EXPENSESR&D in education
13.10.2023	Majandus- ja Kommunikatsiooniministeerium	19 509,99 €Received	OTHER GRANTSGeneral economic and trade policy
11.10.2023	Eesti Kunstiakadeemia	1 980 €Received	NON-CURRENT ASSETSTertiary education
06.09.2023	Majandus- ja Kommunikatsiooniministeerium	22 218,16 €Received	OTHER GRANTSGeneral economic and trade policy

Funded projects


Tehisintellekti abil kavandantavad ehitatud elukeskkonna lahendused2014-2020.15.03.22-0569	Majanduse elavdamineREACT-EU · Ettevõtluse ja Innovatsiooni Sihtasutus	01.06.2022 – 31.08.20232014-2020	418 659 €support 45,0%	366 006,38 €	Completed

State aid


20.03.2024	Haridus- ja NoorteametAid measure 241652	Muu › MuuGrant	370 €	241652/2500065
23.05.2022	Ettevõtluse ja Innovatsiooni SihtasutusAid measure 211117	EK grupierandi määrus 651/2014 Teadus- ja arendustegevuseks ning innovatsiooniks antav abi (artiklid 25-30) › Teadus- ja arendusprojektidele antav abi (artikkel 25 lõike 2 punkt c) - tootearendusGrant	188 396,55 €	211117/2200018
20.03.2018	KliimaministeeriumAid measure 18670	Koolitus VTA › Koolitus VTAGrant	3 450 €	18670/1800014

Public procurement contracts


29.06.2023End 31.01.2030	Reference number 261389 · Projekteerimise töövõtuleping	Riigi Kinnisvara AktsiaseltsContracting authority	1 035 310 €	Concluded

.ee domains


o3.ee	Active	06.08.2012	07.08.2027

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.