12321790ActivePrivate limited companyVAT-registered

O3 Inseneribüroo OÜ

Registered 30. juuli 2012, primary activity: Constructional engineering-technical designing and consulting. Main place of business in Kuressaare linn, Saaremaa vald, Saare maakond.

Kuressaare linn, Saaremaa vald, Saare maakondEMTAK 71121Constructional engineering-technical designing and consulting13+ years
Updated 6 h ago
Revenue 2026 (I kv)
€167k
▼ 5% vs 2025 I kv
As of 10.04.2026 (MTA)
Employees
16
2026 (MTA)
Taxes paid
€159k
State + labour taxes · 2026 (I kv)
Tax debt
€0
As of 13.05.2026 (MTA)

Overview

e-Business Register · 6 h ago
Legal form
Private limited company
Date of first registration
30.07.2012e-Business Register
Address
Tolli tn 7, Kuressaare linn, Saaremaa vald, 93813 Saare maakondADS · e-Business Register
E-mail address
[email protected]e-Business Register
Telephone
+372 53870338e-Business Register
Principal activity
EMTAK 71121 — Constructional engineering-technical designing and consultinge-Business Register · ETCB
VAT number
EE101632351ETCB · VAT-registered
Share capital
2500,00 €e-Business Register

Officers (2)

e-Business Register · 6 h ago
MV
· board member since 05.05.2025
Board member
MH
· board member since 05.05.2025
Board member

Founders

e-Business Register · 6 h ago
MT
· founder since 30.07.2012
Founder · €3k

Shareholders

e-Business Register · 6 h ago
OT
O3 Technology OÜLEGAL PERSON
Legal person · 14062364 · shareholder since 01.09.2023
Shareholder 100% · €3k

Beneficial owners (2)

e-Business Register · 6 h ago
MV
· ultimate beneficial owner since 30.01.2026
Ultimate beneficial owner
MH
· ultimate beneficial owner since 30.01.2026
Ultimate beneficial owner

Annual reports (6)

e-Business Register · annual reports · 3 päeva tagasi
Revenue · 2019–2024
€683klatest
€1.0m€500k0
2019: €529k2020: €547k2021: €401k2022: €562k2023: €599k2024: €683k
201920222024
Profit · 2019–2024
€-3klatest
€50k€-75k€-200k
2019: €22k2020: €26k2021: €-134k2022: 685 €2023: €22k2024: €-3k
201920222024
YearRevenueProfitEquityAssetsEmployees
2024683 447 €−2905 €51 949 €€218k930.06.2025
2023598 660 €22 493 €54 854 €€137k1416.04.2024
2022561 799 €685 €32 361 €€115k1529.06.2023
2021401 292 €−134 465 €31 676 €€110k1305.05.2022
2020546 784 €25 945 €166 141 €€235k1311.06.2021
2019529 335 €21 665 €178 271 €€236k1417.04.2020
Original files (PDF, XBRL) — in the e-Business Register.View reports on e-Business Register

Taxes, revenue and employees

Estonian Tax and Customs Board · 10.04.2026 as of
€200k€100k0
20222023202420252026
YearRevenue (a)State taxesTaxes on workforceEmployees (Q4)
2026I Q167 446 €96 960 €61 687 €16
2025673 999 €444 818 €298 791 €15
2024666 800 €332 478 €220 379 €18
2023613 324 €344 554 €240 912 €14
2022559 966 €307 114 €214 878 €14
Quarterly breakdown
YearQ1Q2Q3Q4
Revenue 2026€167k
State taxes 2026€97k
Taxes on workforce 2026€62k
Employees 202616
Revenue 2025€177k€172k€178k€147k
State taxes 2025€111k€129k€110k€94k
Taxes on workforce 2025€74k€87k€74k€64k
Employees 202518181615
Revenue 2024€153k€142k€184k€187k
State taxes 2024€57k€104k€104k€68k
Taxes on workforce 2024€40k€76k€58k€46k
Employees 202415142018
Revenue 2023€155k€154k€164k€141k
State taxes 2023€88k€83k€94k€79k
Taxes on workforce 2023€62k€58k€66k€55k
Employees 202315161414
Revenue 2022€142k€164k€102k€151k
State taxes 2022€77k€83k€71k€77k
Taxes on workforce 2022€54k€56k€55k€50k
Employees 202218151514

Licences (4)

MTR · 5 h tagasi
Valveseadmestiku projekteerimine, paigaldamine ja hooldamine
MajandustegevusteadeTTV000053from 21.04.2025
Valid
Projekteerimine
MajandustegevusteadeFPR000414from 08.02.2024
Valid
Projekteerimine
MajandustegevusteadeEEP002617from 03.04.2020
Valid
Elektritööd
MajandustegevusteadeTEL002170from 12.07.2013
Valid

History (36)

e-Business Register · entries
05.05.2025
Amending entry
Entry no. 16
05.05.2025
Amending entry
Ä 10171940 / 17 · Status: In force
06.05.2024
Amending entry
Entry no. 15
06.05.2024
Amending entry
Ä 10171940 / 16 · Status: In force
22.04.2024
Amending entry
Ä 10171940 / M3 · Status: Puudused kõrvaldatud
Show 31 more events
01.09.2023
Amending entry
Entry no. 14
01.09.2023
Amending entry
Ä 10171940 / 15 · Status: In force
11.07.2023
Amending entry
Entry no. 13
11.07.2023
Amending entry
Ä 10171940 / 14 · Status: In force
17.01.2018
Amending entry
Entry no. 12
17.01.2018
Amending entry
Ä 10171940 / 13 · Status: In force
22.12.2017
Amending entry
Entry no. 11
22.12.2017
Amending entry
Ä 10171940 / 12 · Status: In force
19.12.2017
Amending entry
Entry no. 10
19.12.2017
Amending entry
Ä 10171940 / 11 · Status: In force
02.12.2017
Amending entry
Entry no. 9
02.12.2017
Amending entry
Ä 10171940 / 10 · Status: In force
31.01.2017
Amending entry
Entry no. 8
31.01.2017
Amending entry
Ä 10171940 / 9 · Status: In force
15.09.2016
Amending entry
Entry no. 7
15.09.2016
Amending entry
Ä 10171940 / 8 · Status: In force
31.05.2016
Amending entry
Entry no. 6
31.05.2016
Amending entry
Ä 10171940 / 7 · Status: In force
27.07.2015
Amending entry
Entry no. 5
27.07.2015
Amending entry
Ä 10171940 / 6 · Status: In force
08.07.2014
Amending entry
Entry no. 4
08.07.2014
Amending entry
Ä 10171940 / 5 · Status: In force
27.05.2014
Amending entry (ÄS § 525 lg 2 alusel)
Entry no. 3
27.05.2014
Amending entry (ÄS § 525 lg 2 alusel)
Ä 10171940 / 4 · Status: In force
06.03.2013
Amending entry
Entry no. 2
06.03.2013
Amending entry
Ä 10171940 / 3 · Status: In force
26.02.2013
Amending entry
Ä 10171940 / M2 · Status: In force
16.10.2012
Amending entry
Ä 10171940 / 2 · Status: In force
10.09.2012
Amending entry
Ä 10171940 / M1 · Status: In force
30.07.2012
First entry
Entry no. 1
30.07.2012
First entry
Ä 10171940 · Status: In force

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