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Search›Companies›Osaühing Karontek
11021442ActivePrivate limited companyEE100895102 · VAT-registered

Osaühing Karontek

Viljandi maakond, Põhja-Sakala vald, Olustvere alevik, Järve tn 3·EMTAK 43221 — Installation, maintenance and repair of heating, ventilation and air conditioning equipment·22+ years
Andmed · ···
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Overview

e-Business Register · 1 min ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
18.03.2004e-Business Register
Address
Järve tn 3, Olustvere alevik, Põhja-Sakala vald, 70401 Viljandi maakondADS · e-Business Register
E-mail address
hanno.aua@gmail.come-Business Register
Telephone
+372 5233391· Telia Eesti ASe-Business Register · TTJA NBA
Principal activity
EMTAK 43221 - Installation, maintenance and repair of heating, ventilation and air conditioning equipmente-Business Register · ETCB
VAT number
ETCB · VAT-registered
Share capital
2556,00 €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
  • Recent registrations

Data

  • 72 sources
  • Database
  • Extensions
  • MCP

Organisation

  • About
  • For journalists
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  • Terms
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© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Data · 11 sourcese-Business Register · just nowMTARTKMTRWeb tech scanEesti Internet
e-Business Register ↗

Registered 18. märts 2004, primary activity: Installation, maintenance and repair of heating, ventilation and air conditioning equipment. Main place of business in Olustvere alevik, Põhja-Sakala vald, Viljandi maakond.

Revenue 2026 (I kv)
355 600 €
▲ 126% vs 2025 I kv
As of 10.04.2026 (MTA)
Employees
6
2026 (MTA)
Taxes paid
57 976 €
State + labour taxes · 2026 (I kv)
Tax debt
0 €
As of 24.06.2026 (MTA)
Revenue 2026 (I kv)
356k €
▲ 126% vs 2025 I kv
As of 10.04.2026 (MTA)
Employees
6
2026 (MTA)
Taxes paid
58k €
State + labour taxes · 2026 (I kv)
Tax debt
€0
As of 24.06.2026 (MTA)

Officers

e-Business Register · 1 min ago
HA
Hanno Aua
Born 1977 · 49 y · board member since 03.05.2004
Board member

Founders

e-Business Register · 1 min ago
OA
Osaühing A-ACCOUNTINGLEGAL PERSON
Legal person · 10285357 · founder since 18.03.2004
Founder

Shareholders

e-Business Register · 1 min ago
HA
Hanno Aua
Born 1977 · 49 y · shareholder since 01.09.2023
Shareholder 100% · 3k €

Beneficial owners

e-Business Register · 1 min ago
HA
Hanno Aua
Born 1977 · 49 y · ultimate beneficial owner since 24.10.2018
Ultimate beneficial owner

Annual reports (7)

e-Business Register · annual reports · 5 päeva tagasi
Revenue 2025
798k €
↗ +12.2% vs 2024
State taxes 2025
130k €
↗ +28.6% vs 2024
Employees 2025
6
0.0% vs 2024
YearRevenueProfit

Taxes, revenue and employees

Estonian Tax and Customs Board · 10.04.2026 as of
500k €250k €0

Licences (1)

MTR · 23 h tagasi
Active licences
1
Other1
Oldest · Newest
2008→2008
Oldest licenceEEH003572 · 15.09.2008
Active1 / 1
EEH003572
Ehitamine
Majandustegevusteade
From15.09.2008
UntilOpen-ended
Valid

Tech stack

Website analysis · 1 h tagasi
Domains (1)
karontek.ee
SPFDMARC
NSZone.ee
REGZone Media OÜ
SRCEIS WHOIS
Detected technologies
Web serverApache
Mobile carrier
+372 5233391Telia Eesti AS

State-sector payments (2 · 5k €)

RTK Makseandmik · 15.05.2026
Transactions
2
2024–2025 · 2 years
Total amount
5k €
avg 3k €
Buyers
2
State and municipal bodies
Latest
06.11.2025
2k € · SA Holstre-Polli Spordikeskus

2025: 2k € · 2024: 4k €

BuyerTxAmountShare
Olustvere Teenindus- ja Maamajanduskool
70002555
1

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
26.05.2026ReportEsitati 2025. aasta aruanne— Käive 797 863 €
2025
29.06.2025ReportEsitati 2024. aasta aruanne— Käive 711 342 €
23.01.2025FilingMuutmiskanne2×expand ›hide ⌃
  • Ä 10078532 / 9 · Olek: Jõustunud
  • Kanne nr 9 · kanne
2024

Connected companies

Same-person ties · e-Business Register

Osaühing Karontek is connected to 2 other companies through 1 person who hold a role here and elsewhere. The strongest tie runs through Hanno Aua (2 companies).

Total connections
2
via 1 person
Connecting people
1
Active here
Distinct roles
3
Board member · Shareholder
Strongest tie
Hanno
2 companies
Via personHanno Aua
Equity
Assets
Employees
2025797 863 €55 297 €54k €106k €626.05.2026
2024711 342 €−8663 €8k €112k €629.06.2025
2023549 494 €−45 615 €23k €194k €627.06.2024
2022851 772 €−37 545 €84k €266k €629.06.2023
2021758 586 €39 440 €134k €298k €630.06.2022
2020464 428 €5707 €100k €171k €530.06.2021
2019930 900 €101 488 €104k €251k €520.10.2020
Original files in PDF – the full register on e-Business Register.View reports on e-Business Register
20222023202420252026
YearRevenue (a)State taxesTaxes on workforceEmployees (Q4)
2026I Q355 600 €41 006 €16 970 €6
2025782 558 €129 567 €69 973 €6
2024724 726 €100 772 €60 503 €6
2023597 015 €100 569 €55 635 €5
2022848 756 €93 603 €69 612 €5
Quarterly breakdown
YearQ1Q2Q3Q4
Revenue 2026356k €–––
State taxes 202641k €–––
Taxes on workforce 202617k €–––
Employees 20266–––
Revenue 2025157k €166k €171k €288k €
State taxes 202530k €31k €32k €37k €
Taxes on workforce 202517k €18k €18k €18k €
Employees 20256666
Revenue 2024177k €199k €179k €169k €
State taxes 202423k €27k €27k €24k €
Taxes on workforce 202414k €16k €16k €15k €
Employees 20245546
Revenue 2023208k €138k €100k €151k €
State taxes 202339k €19k €20k €23k €
Taxes on workforce 202315k €14k €14k €14k €
Employees 20235555
Revenue 2022227k €252k €172k €198k €
State taxes 202224k €28k €20k €22k €
Taxes on workforce 202216k €18k €19k €17k €
Employees 20227775
4k €
SA Holstre-Polli Spordikeskus
90015577
1
2k €
20251 transaction · 2k €
06.112025
SA Holstre-Polli Spordikeskus90015577
MAJANDAMISKULUD · Puhkepargid ja -baasid
1637 €
20241 transaction · 4k €
14.102024
Olustvere Teenindus- ja Maamajanduskool70002555
MAJANDAMISKULUD · Kutseharidus
3623 €
27.06.2024
ReportEsitati 2023. aasta aruanne— Käive 549 494 €
2
HA
Hanno Aua
board member, shareholder 100%, ultimate beneficial owner
2 other companies›
CompanyRoleReg. code
Andolle OÜ
Board memberUltimate beneficial ownerFounderShareholder 100%
14707223
OÜ Kuval Projekt
Board memberFounderShareholder 100%Ultimate beneficial owner
11914111