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Search›Companies›Opetron OÜ
12476601ActivePrivate limited company

Opetron OÜ

Harju maakond, Tallinn, Kesklinna linnaosa, Tatari tn 25-707·EMTAK 69109 — Other legal activities·13+ years
Andmed · ···
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Overview

e-Business Register · 3 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
22.05.2013e-Business Register
Address
Tatari tn 25-707, Kesklinna linnaosa, Tallinn, 10116 Harju maakondADS · e-Business Register
E-mail address
viljar.jaamu@gmail.come-Business Register
Principal activity
EMTAK 69109 - Other legal activitiese-Business Register · ETCB
Share capital
2500,00 €e-Business Register
LEI
254900KOAN11VZK3C726 · lapsed · issued 24.10.2017 · renewal overdue 1781dGLEIF
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
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  • 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 22. mai 2013, primary activity: Other legal activities. Main place of business in Kesklinna linnaosa, Tallinn, Harju maakond.

Data · 6 sourcese-Business Register · 1 min agoGLEIF
e-Business Register ↗
Revenue
0 €
Employees
–
2025 annual report
Taxes paid
–
Tax debt
€0
As of 10.08.2026 (MTA)

Officers

e-Business Register · 3 h ago
VJ
Viljar Jaamu
Born 1968 · 58 y · board member since 28.03.2022
Board member

Founders

e-Business Register · 3 h ago
VJ
Viljar Jaamu
Born 1968 · 58 y · founder since 21.05.2013
Founder · 3k €

Shareholders

e-Business Register · 3 h ago
OG
Octotron Grupp OÜLEGAL PERSON
Legal person · 14733893 · shareholder since 02.09.2023
Shareholder 100% · 3k €

Subsidiaries

e-Business Register · shareholders · 3 h ago
Opetron OÜ12476601Shareholder 33%Cyber Planet OÜ14037478Shareholder 100%Opetron Kinnisvara OÜ12477032
Opetron OÜ is a shareholder or officer in 2 more companies.

Annual reports (7)

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

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
15.06.2026ReportEsitati 2025. aasta aruanne— Käive 0 €
2025
01.07.2025ReportEsitati 2024. aasta aruanne— Käive 0 €

Connected companies

Same-person ties · e-Business Register

Opetron OÜ is connected to 14 other companies through 1 person who hold a role here and elsewhere. The strongest tie runs through Viljar Jaamu (14 companies).

Total connections
14
via 1 person
Connecting people
1
Active here
Distinct roles
2
Board member · Founder
Strongest tie
Viljar
14 companies
Via personViljar Jaamu
2025
0 €
0 €
34k €
116k €
0
15.06.2026
20240 €0 €34k €116k €001.07.2025
2023200 €12 €34k €107k €003.07.2024
2022200 €55 €34k €103k €030.06.2023
20210 €−145 €34k €103k €020.07.2022
20200 €−195 €34k €103k €014.06.2021
20190 €−407 539 €34k €103k €028.10.2020
Original files in PDF – the full register on e-Business Register.View reports on e-Business Register
14
VJ
Viljar Jaamu
board member, founder
14 other companies›
CompanyRoleReg. code
Cyber Planet OÜ
Founder
14037478
Ewerest Energia OÜ
Board member
17416058
Ewerest Grupp OÜ
Shareholder 100%FounderBoard member
17406373
Ewerest Tecnotec OÜ
Board member
17418135
Glorya Autorent OÜ
Board member
11018925
Mittetulundusühing Tallinn Finance
Founder
80335720
Octoinvest OÜ
Board memberShareholder 100%Founder
17445829
Octotron Grupp OÜ
Board memberShareholder 100%Founder
14733893
OJ INVEST GROUP OÜ
Board memberShareholder 50%Founder
16896820
Opetron Capital OÜ
Board memberShareholder 85%
12471101
Opetron Kinnisvara OÜ
Board member
12477032
Osaühing Hansatee Kinnisvara
Founder
10305367
Osaühing Vara HTG
Founder
10235684
SKL Operaator OÜ
Board memberShareholder 100%
10961999

Analysis · 2025

computed from annual reports
Revenue0 €median 17k €0% of the sector median
Equity ratio29.5%
Current ratio0.04current assets cover under 1× liabilities
Compared with2024revenue 0 €

Peer group: Muud juriidilised toimingud, 419 trading companies that filed a report in the last three years.

Founded 2013. That year 8,897 osaühing were registered; 8,560 are still trading, or 96.2%.