ContactTerms
ET/EN/RU
EN
EestiEnglishРусский
nimistuEstonia's public business register
HomeViewsIndustriesBlogSourcesAbout

Public registry of Estonian companies — every fact traceable to a source and a date. Free and ad-free for everyone.

Nimistu MTÜ
Address: Parda tn 8, 10151 Tallinn, Estonia
E-mail: info@nimistu.ee

Browse

  • Home
  • Views
  • Industries
  • Recent registrations

Data

  • 72 sources
  • Database
  • Extensions
  • MCP

Organisation

  • About
  • For journalists
  • Donation terms
  • Refunds
  • Terms
  • Privacy
  • Contact
© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
ContactTerms
ET/EN/RU
EN
EestiEnglishРусский
nimistu
Search›Companies›O2 Haldus OÜ
11969230ActivePrivate limited company

O2 Haldus OÜ

Tartu maakond, Tartu linn, Tartu linn, Jakobi tn 44-2·EMTAK 71111 — Architectural activities·15+ years
Andmed · ···
On this page
SanctionsOverviewOfficersShareholdersFoundersBeneficial ownersOther rolesForeign parentSubsidiariesFinancialsTax filingsPledgesPledges as creditorLicencesNoticesTech stackCourt rulingsTVK decisionsBlacklistLabour inspectorateHazardous facilityDPA decisionsTax-deductibleEU lobby registerTrademarksPatentsReal estateVehiclesGrantsProcurementsState paymentsActivityConnected companies
Extension

Right in search

nimistu card above Google, Bing and DuckDuckGo results.

Chrome→Firefox→Edge→
Free · ~14 KB
See the extension →

Overview

e-Business Register · 4 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
21.07.2010e-Business Register
Address
Jakobi tn 44-2, Tartu linn, Tartu linn, 51005 Tartu maakondADS · e-Business Register
E-mail address
sulev.ojamaa@gmail.come-Business Register
Telephone
+372 5092537· Telia Eesti ASe-Business Register · TTJA NBA
Principal activity
EMTAK 71111 - Architectural activitiese-Business Register · ETCB
Share capital
2600,00 €e-Business Register
Estonia's public business register
HomeViewsIndustriesBlogSourcesAbout

Public registry of Estonian companies — every fact traceable to a source and a date. Free and ad-free for everyone.

Nimistu MTÜ
Address: Parda tn 8, 10151 Tallinn, Estonia
E-mail: info@nimistu.ee

Browse

  • Home
  • Views
  • Industries
  • Recent registrations

Data

  • 72 sources
  • Database
  • Extensions
  • MCP

Organisation

  • About
  • For journalists
  • Donation terms
  • Refunds
  • Terms
  • Privacy
  • Contact
© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Revenue
0 €
▼ NaN% vs 2023
Employees
–
2024 annual report
Taxes paid
–
Tax debt
0 €
As of 26.06.2026 (MTA)

Registered 21. juuli 2010, primary activity: Architectural activities. Main place of business in Tartu linn, Tartu linn, Tartu maakond.

Data · 6 sourcese-Business Register · 8 min ago
e-Business Register ↗
Revenue
0 €
▼ NaN% vs 2023
Employees
–
2024 annual report
Taxes paid
–
Tax debt
€0
As of 26.06.2026 (MTA)

Officers

e-Business Register · 4 h ago
SO
Sulev Ojamaa
Born 1964 · 61 y · board member since 21.07.2010
Board member

Founders

e-Business Register · 4 h ago
SO
Sulev Ojamaa
Born 1964 · 61 y · founder since 21.07.2010
Founder

Shareholders

e-Business Register · 4 h ago
SO
Sulev Ojamaa
Born 1964 · 61 y · shareholder since 05.12.2025
Shareholder 100% · 3k €

Beneficial owners

e-Business Register · 4 h ago
SO
Sulev Ojamaa
Born 1964 · 61 y · ultimate beneficial owner since 19.10.2018
Ultimate beneficial owner

Other persons

e-Business Register · 4 h ago
NC
Nasdaq CSD SEFOREIGN
Foreign / not in register · registrar of the members since 16.09.2020
Registrar of the members

Subsidiaries

e-Business Register · shareholders · 4 h ago
O2 Haldus OÜ11969230Shareholder 55%Projekt O2 OÜ10913931E2 Haldus OÜ11973415Stuudio 2 Arhitektid OÜ12734049
  • Projekt O2 OÜ (10913931) Shareholder 55%
  • E2 Haldus OÜ (11973415) Shareholder 100% (via Projekt O2 OÜ)
  • Stuudio 2 Arhitektid OÜ (12734049) Founder (via Projekt O2 OÜ)
O2 Haldus OÜ is a shareholder or officer in 3 more companies.

Annual reports (6)

e-Business Register · annual reports · 6 päeva tagasi
Revenue 2024
0 €
Employees 2024
0
YearRevenueProfitEquityAssetsEmployees
2024

Tech stack

Tehnoloogiad
Mobile carrier
+372 5092537Telia Eesti AS

History

last 2 years · MTA + ÄR + MTR + Procurements
2025
05.12.2025OfficerSai osanikuks— Sulev Ojamaa · · 100 %
28.05.2025ReportEsitati 2024. aasta aruanne— Käive 0 €

Connected companies

Same-person ties · e-Business Register

O2 Haldus OÜ is connected to 9 other companies through 1 person who hold a role here and elsewhere. The strongest tie runs through Sulev Ojamaa (9 companies).

Total connections
9
via 1 person
Connecting people
1
Active here
Distinct roles
4
Board member · Founder
Strongest tie
Sulev
9 companies
Via personSulev Ojamaa
0 €
−57 €
5k €
5k €
0
28.05.2025
20230 €−61 €5k €5k €015.05.2024
20220 €−36 €5k €5k €013.04.2023
20210 €−24 €5k €5k €015.06.2022
20200 €0 €5k €5k €005.06.2021
20190 €0 €5k €5k €006.05.2021
Original files in PDF – the full register on e-Business Register.View reports on e-Business Register
9
SO
Sulev Ojamaa
board member, founder, shareholder 100%, ultimate beneficial owner
9 other companies›
CompanyRoleReg. code
E2 Haldus OÜ
Ultimate beneficial owner
11973415
Eesti Vanamootorrattaklubi Unic-Moto
Ultimate beneficial ownerBoard member
80075667
Maainsener OÜ
Board memberFounderUltimate beneficial ownerShareholder 100%
11673280
Mittetulundusühing KESKKOND INIMESTELE
Board memberUltimate beneficial owner
80237650
Mittetulundusühing Norra Allikad
Board memberFounderUltimate beneficial owner
80270239
OÜ VIINAMÄRDI HALDUS
Board memberUltimate beneficial ownerShareholder 100%
10945167
Projekt O2 OÜ
Ultimate beneficial owner
10913931
Stuudio 2 Arhitektid OÜ
Board memberFounderShareholder 100%Ultimate beneficial owner
12734049
Viinamärdi OÜ
Ultimate beneficial ownerBoard memberFounderShareholder 100%
17427613