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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·16+ years
Andmed · ···
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Overview

e-Business Register · 10 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
  • Activity licences
  • Recent registrations

Data

  • 79 sources
  • Database
  • Extensions
  • MCP

Organisation

  • About
  • FAQ
  • For journalists
  • Donate
  • Donation terms
  • Refunds
  • Terms
  • Privacy
  • Contact
© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Revenue
0 €
Employees
–
2025 annual report
Taxes paid
–
Tax debt
0 €
As of 10.08.2026 (MTA)

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

Data · 5 sourcese-Business Register · 5 min ago
e-Business Register ↗
Revenue
0 €
Employees
–
2025 annual report
Taxes paid
–
Tax debt
€0
As of 10.08.2026 (MTA)

Officers

e-Business Register · 10 h ago
SO
Sulev Ojamaa
Born 1964 · 61 y · board member since 21.07.2010
Board member

Founders

e-Business Register · 10 h ago
SO
Sulev Ojamaa
Born 1964 · 61 y · founder since 21.07.2010
Founder

Shareholders

e-Business Register · 10 h ago
SO
Sulev Ojamaa
Born 1964 · 61 y · shareholder since 05.12.2025
Shareholder 100% · 3k €

Other persons

e-Business Register · 10 h ago
NC
Nasdaq CSD SEFOREIGN
Foreign / not in register · registrar of the members since 16.09.2020
Registrar of the members

Annual reports (7)

e-Business Register · annual reports · 5 päeva tagasi
Revenue 2025
0 €
Employees 2025
0
YearRevenueProfitEquityAssetsEmployees

Tech stack

Tehnoloogiad
Mobile carrier
+372 5092537Telia Eesti AS

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
29.06.2026ReportEsitati 2025. aasta aruanne— Käive 0 €
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 7 other companies through 1 person who hold a role here and elsewhere. The strongest tie runs through Sulev Ojamaa (7 companies).

Total connections
7
via 1 person
Connecting people
1
Active here
Distinct roles
3
Board member · Founder
Strongest tie
Sulev
7 companies
Via personSulev Ojamaa
2025
0 €
−2808 €
2k €
2k €
0
29.06.2026
20240 €−57 €5k €5k €028.05.2025
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
7
SO
Sulev Ojamaa
board member, founder, shareholder 100%
7 other companies›
CompanyRoleReg. code
Eesti Vanamootorrattaklubi Unic-Moto
Board member
80075667
Maainsener OÜ
Shareholder 100%FounderBoard member
11673280
Mittetulundusühing KESKKOND INIMESTELE
Board member
80237650
Mittetulundusühing Norra Allikad
Board memberFounder
80270239
OÜ VIINAMÄRDI HALDUS
Shareholder 100%Board member
10945167
Stuudio 2 Arhitektid OÜ
Board memberFounderShareholder 100%
12734049
Viinamärdi OÜ
Board memberFounderShareholder 100%
17427613

Analysis · 2025

computed from annual reports
Revenue0 €median 23k €0% of the sector median
Equity ratio97.0%
Current ratio33.75
Compared with2024revenue 0 €

Peer group: Arhitektitegevused, 853 trading companies that filed a report in the last three years.

Founded 2010. That year 6,007 osaühing were registered; 5,790 are still trading, or 96.4%.