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Search›Companies›Energiaressursside Efektiivse Kasutamise Tehnoloogiate Arenduskeskus OÜ
12761477ActivePrivate limited company

Energiaressursside Efektiivse Kasutamise Tehnoloogiate Arenduskeskus OÜ

Harju maakond, Tallinn, Kesklinna linnaosa, Müürivahe tn 22·EMTAK 72191 — Teadus- ja arendustegevus muude loodus- ja tehnikateaduste vallas·11+ years
Andmed · ···
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Overview

e-Business Register · 16 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
28.11.2014e-Business Register
Address
Müürivahe tn 22, Kesklinna linnaosa, Tallinn, 10140 Harju maakondADS · e-Business Register
E-mail address
info@energiatak.eee-Business Register
Website
energiatak.eee-Business Register · domain active
Telephone
+372 5035325· Elisa Eesti ASe-Business Register · TTJA NBA
Principal activity
EMTAK 72191 - Teadus- ja arendustegevus muude loodus- ja tehnikateaduste vallase-Business Register · ETCB
Share capital
20 000,00 €e-Business Register
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

  • 72 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
–
Employees
–
2025 annual report
Taxes paid
–
Tax debt
0 €
As of 04.07.2026 (MTA)
Data · 8 sourcese-Business Register · 3 min agoBuiltWithWeb tech scan
e-Business Register ↗

Registered 28. november 2014, primary activity: Teadus- ja arendustegevus muude loodus- ja tehnikateaduste vallas. Main place of business in Kesklinna linnaosa, Tallinn, Harju maakond.

Revenue
–
Employees
–
2025 annual report
Taxes paid
–
Tax debt
€0
As of 04.07.2026 (MTA)

Officers (5)

e-Business Register · 16 h ago
AA
Aleksander Andre
· supervisory board member since 28.11.2014
Supervisory board member
IK
Indrek Kaunissaare
Born 1979 · 46 y · supervisory board member since 28.11.2014
Supervisory board member
MK
Mare Kallaste-Karjus
Born 1969 · 57 y · supervisory board member since 28.11.2014
Supervisory board member
TH
Tõnis Haavel
Born 1970 · 55 y · supervisory board member since 28.11.2014
Supervisory board member
AS
Andres Sõnajalg
Born 1961 · 65 y · supervisory board member since 28.11.2014
Supervisory board member

Founders (13)

e-Business Register · 16 h ago
AE
Aktsiaselts Eesti ElekterLEGAL PERSON
Legal person · 10951819 · founder since 28.11.2014
Founder · 4k €
EE
Elektri Energia ASLEGAL PERSON
Legal person · 11462011 · founder since 28.11.2014
Founder · 1k €
EA
ELEON ASLEGAL PERSON
Legal person · 11456200 · founder since 28.11.2014
Founder · 5k €

Shareholders (13)

e-Business Register · 16 h ago
0%50%100%
Founder / management
100.0% · 13
#ShareholderType%

Beneficial owners (14)

e-Business Register · 16 h ago
VS
Viivi Sõnajalg
Born 1962 · 63 y · ultimate beneficial owner since 27.08.2019
Ultimate beneficial owner
RM
Roose Maria Sõnajalg
Born 1994 · 31 y · ultimate beneficial owner since 27.08.2019
Ultimate beneficial owner
SS
Siim Sõnajalg
Born 1989 · 37 y · ultimate beneficial owner since 27.08.2019
Ultimate beneficial owner

Annual reports (7)

e-Business Register · annual reports · 1 päeva tagasi
Employees 2025
0
YearRevenueProfitEquityAssetsEmployees
2025–0 €22k €22k €0

Tech stack

BuiltWith · indekseerimata
Domains (1)
energiatak.ee
SRCÄriregister
Could not analyse (fetch failed)
Mobile carrier
+372 5035325Elisa Eesti AS

Veebilehte ei õnnestunud analüüsida (fetch failed).

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
30.06.2026ReportEsitati 2025. aasta aruanne
2025
29.05.2025FilingMuutmiskanne2×expand ›hide ⌃
  • Ä 10202966 / 7 · Olek: Jõustunud
  • Kanne nr 7 · kanne
13.03.2025ReportEsitati 2024. aasta aruanne
05.03.2025

Connected companies

Same-person ties · e-Business Register

Energiaressursside Efektiivse Kasutamise Tehnoloogiate Arenduskeskus OÜ is connected to 124 other companies through 14 people who hold a role here and elsewhere. The strongest tie runs through Andres Sõnajalg (37 companies).

Total connections
124
via 14 people
Connecting people
14
Active here
Distinct roles
2
Ultimate beneficial owner · Supervisory board member
Strongest tie
Andres
37 companies
Via personAndres Sõnajalg
EO
Enercom OÜLEGAL PERSON
Legal person · 11698896 · founder since 28.11.2014
Founder · 500 €
EA
Energia Agentuur ASLEGAL PERSON
Legal person · 10710337 · founder since 28.11.2014
Founder · 1k €
EE
Estwind Energy OÜLEGAL PERSON
Legal person · 10965767 · founder since 28.11.2014
Founder · 1k €
EO
Eurowind OÜLEGAL PERSON
Legal person · 11507191 · founder since 28.11.2014
Founder · 500 €
EG
Eleon Green OÜLEGAL PERSON
Legal person · 11458666 · founder since 28.11.2014
Founder · 2k €
OD
Osaühing DynastiaLEGAL PERSON
Legal person · 10951587 · founder since 28.11.2014
Founder · 500 €
OE
Osaühing Eesti VaraLEGAL PERSON
Legal person · 11360635 · founder since 28.11.2014
Founder · 500 €
SO
Solarwind OÜLEGAL PERSON
Legal person · 11271877 · founder since 28.11.2014
Founder · 500 €
ER
Eleon RND OÜLEGAL PERSON
Legal person · 12754052 · founder since 28.11.2014
Founder · 3k €
RE
Roheline Elekter ASLEGAL PERSON
Legal person · 11303442 · founder since 28.11.2014
Founder · 1k €
€
1
ELEON AS
Founder / management25.00%5k €
2
Aktsiaselts Eesti Elekter
Founder / management20.00%4k €
3
Eleon RND OÜ
Founder / management12.50%3k €
4
Eleon Green OÜ
Founder / management10.00%2k €
5
Estwind Energy OÜ
Founder / management5.00%1k €
6
Elektri Energia AS
Founder / management5.00%1k €
7
Energia Agentuur AS
Founder / management5.00%1k €
8
Roheline Elekter AS
Founder / management5.00%1k €
9
Solarwind OÜ
Founder / management2.50%500 €
10
Osaühing Dynastia
Founder / management2.50%500 €

+ 3 more shareholders – full list below.

Concentration

How tightly the cap table is held. Top-N shows the combined stake of the largest N shareholders; the 80% line is the smallest group that together controls 80%; Gini is 0 when stakes are perfectly equal, 1 when one holder owns everything.

Top 1
25.0%
Top 3
57.5%
Top 5
72.5%
Top 10
92.5%
80% line
7 of 13
Gini
0.45

Dominant holder: 25.0% – non-controlling but blocking.

EA
ELEON ASLEGAL PERSON
Legal person · 11456200 · shareholder since 01.09.2023
Shareholder 25% · 5k €
AE
Aktsiaselts Eesti ElekterLEGAL PERSON
Legal person · 10951819 · shareholder since 01.09.2023
Shareholder 20% · 4k €
ER
Eleon RND OÜLEGAL PERSON
Legal person · 12754052 · shareholder since 01.09.2023
Shareholder 13% · 3k €
EG
Eleon Green OÜLEGAL PERSON
Legal person · 11458666 · shareholder since 01.09.2023
Shareholder 10% · 2k €
EE
Estwind Energy OÜLEGAL PERSON
Legal person · 10965767 · shareholder since 01.09.2023
Shareholder 5% · 1k €
EE
Elektri Energia ASLEGAL PERSON
Legal person · 11462011 · shareholder since 01.09.2023
Shareholder 5% · 1k €
EA
Energia Agentuur ASLEGAL PERSON
Legal person · 10710337 · shareholder since 01.09.2023
Shareholder 5% · 1k €
RE
Roheline Elekter ASLEGAL PERSON
Legal person · 11303442 · shareholder since 01.09.2023
Shareholder 5% · 1k €
SO
Solarwind OÜLEGAL PERSON
Legal person · 11271877 · shareholder since 01.09.2023
Shareholder 3% · 500 €
OD
Osaühing DynastiaLEGAL PERSON
Legal person · 10951587 · shareholder since 01.09.2023
Shareholder 3% · 500 €
OE
Osaühing Eesti VaraLEGAL PERSON
Legal person · 11360635 · shareholder since 01.09.2023
Shareholder 3% · 500 €
EO
Eurowind OÜLEGAL PERSON
Legal person · 11507191 · shareholder since 01.09.2023
Shareholder 3% · 500 €
Show all (13)
EO
Enercom OÜLEGAL PERSON
Legal person · 11698896 · shareholder since 01.09.2023
Shareholder 3% · 500 €
SS
Siiri Sõnajalg
Born 1962 · 63 y · ultimate beneficial owner since 27.08.2019
Ultimate beneficial owner
TP
Taimi Ploompuu
Born 1938 · 88 y · ultimate beneficial owner since 27.08.2019
Ultimate beneficial owner
TH
Tõnis Haavel
Born 1970 · 55 y · ultimate beneficial owner since 27.08.2019
Ultimate beneficial owner
AA
Aleksander Andre
· ultimate beneficial owner since 27.08.2019
Ultimate beneficial owner
AS
Andres Sõnajalg
Born 1961 · 65 y · ultimate beneficial owner since 27.08.2019
Ultimate beneficial owner
ES
Ebbe-Liisa Sõnajalg
Born 1983 · 42 y · ultimate beneficial owner since 27.08.2019
Ultimate beneficial owner
EM
Elvi Maripuu
Born 1934 · 92 y · ultimate beneficial owner since 27.08.2019
Ultimate beneficial owner
IK
Indrek Kaunissaare
Born 1979 · 46 y · ultimate beneficial owner since 27.08.2019
Ultimate beneficial owner
MK
Mare Kallaste-Karjus
Born 1969 · 57 y · ultimate beneficial owner since 27.08.2019
Ultimate beneficial owner
MS
Mikk Sõnajalg
Born 1987 · 39 y · ultimate beneficial owner since 27.08.2019
Ultimate beneficial owner
OS
Oleg Sõnajalg
Born 1959 · 66 y · ultimate beneficial owner since 27.08.2019
Ultimate beneficial owner
30.06.2026
2024–0 €22k €22k €013.03.2025
2023–0 €22k €22k €030.06.2024
2022–0 €22k €22k €030.06.2023
2021–0 €22k €22k €030.06.2022
2020–0 €22k €22k €030.06.2021
2019–0 €22k €22k €030.10.2020
Original files in PDF – the full register on e-Business Register.View reports on e-Business Register
FilingMuutmiskanne
2×
expand ›
hide ⌃
  • Ä 10202966 / 6 · Olek: Jõustunud
  • Kanne nr 6 · kanne
37
Mikk Sõnajalg16
Siim Sõnajalg14
Roose Maria Sõnajalg10
Aleksander Andre8
Indrek Kaunissaare8
Ebbe-Liisa Sõnajalg6
Mare Kallaste-Karjus6
Oleg Sõnajalg6
Tõnis Haavel5
Siiri Sõnajalg3
Elvi Maripuu3
Viivi Sõnajalg1
Taimi Ploompuu1
AS
Andres Sõnajalg
ultimate beneficial owner, supervisory board member
37 other companies›
CompanyRoleReg. code
Aidu Green OÜ
Board memberUltimate beneficial owner
17514312
Aidu Infra OÜ
Board memberUltimate beneficial owner
16833067
Aidu Neljas Tuulik OÜ
Board memberUltimate beneficial owner
14101006
Aidu Tuulepark OÜ
Board memberUltimate beneficial owner
12805855
Aktsiaselts Eesti Elekter
Board memberUltimate beneficial owner
10951819
Anseküla Jahiselts MTÜ
Founder
80551793
Audru Tuulepark OÜ
Board memberShareholder 39%Ultimate beneficial owner
12858892
Auvere Infra OÜ
Board memberUltimate beneficial owner
12804886
Do or Tai OÜ
Shareholder 100%Board memberFounderUltimate beneficial owner
16831944
Electric Capital OÜ
Board memberUltimate beneficial owner
17462526
Elektri Energia AS
Shareholder 39%Supervisory board memberUltimate beneficial owner
11462011
ELEON AS
Board memberUltimate beneficial owner
11456200
Eleon Green OÜ
Shareholder 10%Board memberUltimate beneficial owner
11458666
Eleon Holding OÜ
Shareholder 100%Board memberFounderUltimate beneficial owner
16342487
Eleon Production OÜ
Board memberUltimate beneficial owner
11537163
Eleon Towers OÜ
Board memberUltimate beneficial owner
12787666
… and 21 more · see on the person page ↗
MS
Mikk Sõnajalg
ultimate beneficial owner
16 other companies›
CompanyRoleReg. code
Aidu Wind OÜ
Board memberUltimate beneficial owner
17220800
Aidu Wind Park OÜ
Ultimate beneficial owner
16738104
SS
Siim Sõnajalg
ultimate beneficial owner
14 other companies›
CompanyRoleReg. code
Aidu Green OÜ
Board member
17514312
Aidu Infra OÜ
Board member
16833067
Aidu Wind OÜ
RM
Roose Maria Sõnajalg
ultimate beneficial owner
10 other companies›
CompanyRoleReg. code
Aidu Wind OÜ
Ultimate beneficial owner
17220800
Aidu Wind Park OÜ
Ultimate beneficial owner
16738104
Aktsiaselts Eesti Elekter
AA
Aleksander Andre
ultimate beneficial owner, supervisory board member
8 other companies›
CompanyRoleReg. code
Manter MTÜ
FounderBoard memberUltimate beneficial owner
80381507
Mittetulundusühing Eesti Curlingu Liit
Board member
IK
Indrek Kaunissaare
ultimate beneficial owner, supervisory board member
8 other companies›
CompanyRoleReg. code
Bakcos Trade OÜ
Board memberShareholder 100%FounderUltimate beneficial owner
14761955
Indrex Juhtimisteenused OÜ
ES
Ebbe-Liisa Sõnajalg
ultimate beneficial owner
6 other companies›
CompanyRoleReg. code
Aktsiaselts Eesti Elekter
Supervisory board member
10951819
Audru Tuulepark OÜ
Shareholder 19%Ultimate beneficial owner
12858892
MK
Mare Kallaste-Karjus
ultimate beneficial owner, supervisory board member
6 other companies›
CompanyRoleReg. code
Accounting TabulaRasa OÜ
Board member
12332351
Elektri Energia AS
Board member
11462011
Karjus & Co OÜ
OS
Oleg Sõnajalg
ultimate beneficial owner
6 other companies›
CompanyRoleReg. code
Aidu Tuulepark OÜ
Founder
12805855
Anseküla Jahiselts MTÜ
Founder
80551793
Eleon Capital OÜ
TH
Tõnis Haavel
ultimate beneficial owner, supervisory board member
5 other companies›
CompanyRoleReg. code
AS LHV Group
Founder
11098261
AS LHV Pank
Founder
10539549
KOMPRESSOR OÜ
SS
Siiri Sõnajalg
ultimate beneficial owner
3 other companies›
CompanyRoleReg. code
Aktsiaselts Eesti Elekter
Supervisory board member
10951819
Elektri Energia AS
Supervisory board member
11462011
ELEON AS
EM
Elvi Maripuu
ultimate beneficial owner
3 other companies›
CompanyRoleReg. code
Laineharja 1 OÜ
Founder
14650517
Laineharja 3 OÜ
Founder
14650500
Osaühing Dynastia
VS
Viivi Sõnajalg
ultimate beneficial owner
1 other company›
CompanyRoleReg. code
VIVICUM OÜ
Founder
14963311
TP
Taimi Ploompuu
ultimate beneficial owner
1 other company›
CompanyRoleReg. code
Osaühing Eesti Vara
Founder
11360635
Anseküla Jahiselts MTÜ
Founder
80551793
Eleon Capital OÜ
Shareholder 20%Board memberUltimate beneficial owner
16355834
Eleon Green OÜ
Founder
11458666
Eleon RND OÜ
Shareholder 20%Ultimate beneficial owner
12754052
Energia Valgus OÜ
Founder
12778259
Eurolander OÜ
Shareholder 10%
10713638
MegaWatt Hardware OÜ
Ultimate beneficial ownerBoard member
17482894
MegaWatt Network OÜ
Ultimate beneficial ownerBoard memberFounderShareholder 100%
16649010
MegaWatt RND OÜ
Ultimate beneficial ownerBoard member
17483853
MTÜ Kristlik Heategevus
FounderUltimate beneficial ownerBoard member
80619665
Osaühing Dynastia
Shareholder 10%
10951587
Osaühing Eesti Vara
Shareholder 10%
11360635
OÜ Energia Kapital
Shareholder 100%FounderUltimate beneficial ownerBoard member
12182383
VIVICUM OÜ
Ultimate beneficial ownerShareholder 50%
14963311
Ultimate beneficial owner
17220800
Aidu Wind Park OÜ
Board memberUltimate beneficial owner
16738104
Aktsiaselts Eesti Elekter
Board member
10951819
Eesti Kapital OÜ
Shareholder 100%Board memberFounderUltimate beneficial owner
11515821
Elamuste Universum OÜ
Founder
16868099
Eleon Capital OÜ
Shareholder 20%Board memberUltimate beneficial owner
16355834
Eleon RND OÜ
Shareholder 20%Board memberUltimate beneficial owner
12754052
Eurolander OÜ
Shareholder 10%
10713638
Investment Capital OÜ
Founder
16505995
Osaühing Dynastia
Shareholder 10%
10951587
Osaühing Eesti Vara
Shareholder 10%
11360635
VIVICUM OÜ
Ultimate beneficial ownerShareholder 50%
14963311
Supervisory board member
10951819
Eleon Capital OÜ
Shareholder 20%Board memberUltimate beneficial owner
16355834
Eleon RND OÜ
Shareholder 20%Ultimate beneficial owner
12754052
Eurolander OÜ
Shareholder 10%
10713638
Golden Capital OÜ
Shareholder 100%Board memberFounderUltimate beneficial owner
16350819
Osaühing Dynastia
Shareholder 10%
10951587
Osaühing Eesti Vara
Shareholder 10%
11360635
VIVICUM OÜ
Ultimate beneficial ownerShareholder 50%
14963311
80176606
osaühing Axendo
Ultimate beneficial ownerBoard memberFounderShareholder 100%
10465846
Tallinn Finance Centre OÜ
Ultimate beneficial ownerBoard member
11425702
Vector Kindlustusmaakler OÜ
Ultimate beneficial ownerBoard member
12598988
Vector Koolitused OÜ
Ultimate beneficial ownerBoard member
16893454
Vector Vara OÜ
Ultimate beneficial ownerShareholder 50%Board memberFounder
11023441
Viking Forell OÜ
Shareholder 20%
11266801
Board member
Founder
Shareholder 100%
Ultimate beneficial owner
14435434
Indrex Konsultatsioonid OÜ
Board memberFounderShareholder 100%Ultimate beneficial owner
12613529
JÄRVEVEERE TURISMIKÜLA MTÜ
Board memberFounderUltimate beneficial owner
80311719
KäsitööHub MTÜ
Board memberFounderUltimate beneficial owner
80655554
Mõisa pagar OÜ
Ultimate beneficial ownerBoard memberFounderShareholder 100%
14720040
Pirukaparadiis OÜ
Shareholder 100%Ultimate beneficial ownerFounderBoard member
16090212
Roheline Elekter AS
Supervisory board member
11303442
Elektri Energia AS
Shareholder 19%Supervisory board memberUltimate beneficial owner
11462011
ELEON AS
Supervisory board member
11456200
Solarwind OÜ
Ultimate beneficial ownerShareholder 100%Board member
11271877
Tika Ratsaklubi
Founder
80179645
Board memberShareholder 100%FounderUltimate beneficial owner
12677038
Osaühing Polarest
Board member
10447423
Roheline Elekter AS
Supervisory board member
11303442
Sihtasutus Avatud Lootuse Fond
Ultimate beneficial ownerSupervisory board member
90014282
Founder
16355834
Roheline Elekter AS
Supervisory board member
11303442
Sihtasutus Avatud Lootuse Fond
Ultimate beneficial ownerSupervisory board member
90014282
United Plus OÜ
Founder
16347838
Founder
10505936
Osaühing Eetriüksus
Founder
10671936
Osaühing Grupivara
Founder
10672077
Supervisory board member
11456200
Founder
10951587