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Search›Persons›Viljar Jaamu
VJ
Born 08.07.1968 · 58 y

Viljar Jaamu

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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

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  • 79 sources
  • Database
  • Extensions
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© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
15active companies28years active
Board member
11
companies
Founder
9
companies
Shareholder
6
companies
Top role
Osaühing Vara HTG
Founder
since 11.08.1997 · 28 y
Latest activity
Octoinvest OÜ
Board member + Shareholder + Founder
since 26.02.2026

History

e-Business Register · last 2 years
2026
26.02.2026OfficerAstus juhatusse— Octoinvest OÜ · Octoinvest OÜ
26.02.2026OfficerSai osanikuks— Octoinvest OÜ · Octoinvest OÜ · 100 %
26.02.2026OfficerAsutas ettevõtte— Octoinvest OÜ · Octoinvest OÜ
21.01.2026OfficerAstus juhatusse— Ewerest Tecnotec OÜ · Ewerest Tecnotec OÜ
19.01.2026OfficerAstus juhatusse— · Ewerest Energia OÜ
⚠

8 of this person's companies share the same address (12 in total at the address): Harju maakond, Tallinn, Kesklinna linnaosa, Tatari tn 25-707.

May indicate a corporate-services bureau or virtual office under this person's control.

Activity overview

e-Business Register
Roles by type
Board member11
Founder9
Shareholder6
Companies by sector
Professional, scientific and technical activities5
Real estate activities4
Administrative and support service activities2

Companies (15)

e-Business Register
OV
Osaühing Vara HTG10235684Active
Kesklinna linnaosa, Tallinn, Harju maakond·EMTAK 68201
Founder · 11.08.1997
28y
active
3,2m €
OH
Osaühing Hansatee Kinnisvara10305367Active
Kesklinna linnaosa, Tallinn, Harju maakond·
Ewerest Energia OÜ
06.01.2026OfficerAstus juhatusse— Ewerest Grupp OÜ · Ewerest Grupp OÜ
06.01.2026OfficerSai osanikuks— Ewerest Grupp OÜ · Ewerest Grupp OÜ · 100 %
05.01.2026OfficerAsutas ettevõtte— Ewerest Grupp OÜ · Ewerest Grupp OÜ
Information and communication1
Electricity, gas, steam and air conditioning supply1
Manufacturing1
Financial and insurance activities1
Companies joined per year
420
199720122026
EMTAK 77111
Founder · 23.10.1997
28y
active
893k €
CP
Cyber Planet OÜ14037478Active
Kesklinna linnaosa, Tallinn, Harju maakond·EMTAK 62901
Founder · 22.04.2016
10y
active
30k €
SO
SKL Operaator OÜ10961999Active
Kesklinna linnaosa, Tallinn, Harju maakond·EMTAK 68201
Shareholder 100% · 01.09.2023Board member · 29.07.2016
10y
active
14k €
OK
Opetron Kinnisvara OÜ12477032Active
Kesklinna linnaosa, Tallinn, Harju maakond·EMTAK 68201
Board member · 28.03.2022
4y
active
14k €
GA
Glorya Autorent OÜ11018925Active
Kristiine linnaosa, Tallinn, Harju maakond·EMTAK 77111
Board member · 16.05.2022
4y
active
9k €
MT
Mittetulundusühing Tallinn Finance80335720Active
Kesklinna linnaosa, Tallinn, Harju maakond·EMTAK 74991
Founder · 21.11.2011
14y
active
OO
Opetron OÜ12476601Active
Kesklinna linnaosa, Tallinn, Harju maakond·EMTAK 69109
Board member · 28.03.2022Founder · 21.05.2013
13y
active
0 €
OC
Opetron Capital OÜ12471101Active
Kesklinna linnaosa, Tallinn, Harju maakond·EMTAK 66199
Shareholder 85% · 02.09.2023Board member · 09.09.2013
12y
active
0 €
OG
Octotron Grupp OÜ14733893Active
Kristiine linnaosa, Tallinn, Harju maakond·EMTAK 70201
Shareholder 100% · 01.09.2023Board member · 28.03.2022Founder · 29.05.2019
7y
active
OI
OJ INVEST GROUP OÜ16896820Active
Kesklinna linnaosa, Tallinn, Harju maakond·EMTAK 70201
Founder · 11.01.2024Board member · 11.01.2024Shareholder 50% · 11.01.2024
2y
active
0 €
EG
Ewerest Grupp OÜ17406373Active
Kesklinna linnaosa, Tallinn, Harju maakond·EMTAK 70201
Shareholder 100% · 06.01.2026Board member · 06.01.2026Founder · 05.01.2026
EE
Ewerest Energia OÜ17416058Active
Kesklinna linnaosa, Tallinn, Harju maakond·EMTAK 35129
Board member · 19.01.2026
ET
Ewerest Tecnotec OÜ17418135Active
Kesklinna linnaosa, Tallinn, Harju maakond·EMTAK 25991
Board member · 21.01.2026
OO
Octoinvest OÜ17445829Active
Kesklinna linnaosa, Tallinn, Harju maakond·EMTAK 68111
Board member · 26.02.2026Shareholder 100% · 26.02.2026Founder · 26.02.2026