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
  • 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
ContactTerms
ET/EN/RU
EN
EestiEnglishРусский
nimistu
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 · ···
On this page
SanctionsOverviewOfficersShareholdersFoundersOther rolesForeign parentSubsidiariesFinancialsTax filingsPledgesPledges as creditorLicencesNoticesTech stackCourt rulingsTVK decisionsBlacklistLabour inspectorateHazardous facilityDPA decisionsTax-deductibleEU lobby registerTrademarksPatentsReal estateVehiclesGrantsProcurementsDocumentsState 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 · 21 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
  • 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 09.08.2026 (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 · just nowGLEIF
e-Business Register ↗
Revenue
0 €
Employees
–
2025 annual report
Taxes paid
–
Tax debt
€0
As of 09.08.2026 (MTA)

Officers

e-Business Register · 21 h ago
VJ
Viljar Jaamu
Born 1968 · 58 y · board member since 28.03.2022
Board member

Founders

e-Business Register · 21 h ago
VJ
Viljar Jaamu
Born 1968 · 58 y · founder since 21.05.2013
Founder · 3k €

Shareholders

e-Business Register · 21 h ago
OG
Octotron Grupp OÜLEGAL PERSON
Legal person · 14733893 · shareholder since 02.09.2023
Shareholder 100% · 3k €

Subsidiaries

e-Business Register · shareholders · 21 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 · 4 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
Board memberShareholder 100%Founder
17406373
Ewerest Tecnotec OÜ
Board member
17418135
Glorya Autorent OÜ
Board member
11018925
Mittetulundusühing Tallinn Finance
Founder
80335720
Octoinvest OÜ
FounderShareholder 100%Board member
17445829
Octotron Grupp OÜ
FounderShareholder 100%Board member
14733893
OJ INVEST GROUP OÜ
FounderShareholder 50%Board member
16896820
Opetron Capital OÜ
Shareholder 85%Board member
12471101
Opetron Kinnisvara OÜ
Board member
12477032
Osaühing Hansatee Kinnisvara
Founder
10305367
Osaühing Vara HTG
Founder
10235684
SKL Operaator OÜ
Shareholder 100%Board member
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%.