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Search›Companies›Karster OÜ
14392143ActivePrivate limited companyEE102751626 · VAT-registered

Karster OÜ

Harju maakond, Tallinn, Kesklinna linnaosa, Koidu tn 27-28·EMTAK 72101 — Research and experimental development on natural sciences and engineering·8+ years
Andmed · ···
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Overview

e-Business Register · 20 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
18.12.2017e-Business Register
Address
Koidu tn 27-28, Kesklinna linnaosa, Tallinn, 10136 Harju maakondADS · e-Business Register
E-mail address
mare.wilberg@gmail.come-Business Register
Principal activity
EMTAK 72101 - Research and experimental development on natural sciences and engineeringe-Business Register · ETCB
VAT number
ETCB · VAT-registered
Share capital
2500,00 €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
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© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Data · 7 sourcese-Business Register · 3 min agoMTA
e-Business Register ↗

Registered 18. detsember 2017, primary activity: Research and experimental development on natural sciences and engineering. Main place of business in Kesklinna linnaosa, Tallinn, Harju maakond.

Revenue 2026 (I kv)
0 €
▼ 41% vs 2024
As of 10.04.2026 (MTA)
Employees
–
2026 (MTA)
Taxes paid
100 €
State + labour taxes · 2026 (I kv)
Tax debt
0 €
As of 27.06.2026 (MTA)
Revenue 2026 (I kv)
0 €
▼ 41% vs 2024
As of 10.04.2026 (MTA)
Employees
–
2026 (MTA)
Taxes paid
100 €
State + labour taxes · 2026 (I kv)
Tax debt
€0
As of 27.06.2026 (MTA)

Officers

e-Business Register · 20 h ago
MV
Mare Vilberg
· board member since 18.12.2017
Board member

Founders

e-Business Register · 20 h ago
MV
Mare Vilberg
· founder since 15.12.2017
Founder · 3k €

Shareholders

e-Business Register · 20 h ago
MV
Mare Vilberg
· shareholder since 01.09.2023
Shareholder 100% · 3k €

Beneficial owners

e-Business Register · 20 h ago
MV
Mare Vilberg
· ultimate beneficial owner since 23.10.2018
Ultimate beneficial owner

Annual reports (7)

e-Business Register · annual reports · 22 h tagasi
Revenue 2025
70k €
↘ -41.0% vs 2024
Employees 2025
0
YearRevenueProfitEquityAssetsEmployees

Taxes, revenue and employees

Estonian Tax and Customs Board · 10.04.2026 as of
YearRevenue (a)State taxesTaxes on workforceEmployees (Q4)
2026I Q0 €100 €0 €–
202561 875 €14 946 €0 €–
2024I-IV Q74 220 €16 183 €0 €–
2023–

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
09.04.2026ReportEsitati 2025. aasta aruanne— Käive 69 675 €
2025
01.06.2025ReportEsitati 2024. aasta aruanne— Käive 118 120 €

Connected companies

Same-person ties · e-Business Register

Karster OÜ is connected to 2 other companies through 1 person who hold a role here and elsewhere. The strongest tie runs through Mare Vilberg (2 companies).

Total connections
2
via 1 person
Connecting people
1
Active here
Distinct roles
4
Board member · Founder
Strongest tie
Mare
2 companies
Via personMare Vilberg
202569 675 €54 732 €343k €518k €009.04.2026
2024118 120 €103 747 €288k €289k €001.06.2025
202340 000 €32 538 €182k €185k €024.03.2024
202239 990 €31 179 €150k €152k €014.05.2023
202139 960 €33 087 €121k €121k €013.05.2022
202024 760 €19 300 €88k €88k €004.06.2021
201931 600 €31 534 €69k €69k €012.06.2020
Original files in PDF – the full register on e-Business Register.View reports on e-Business Register
23 €
0 €
–
2022–23 €0 €–
Quarterly breakdown
YearQ1Q2Q3Q4
Revenue 20260 €–––
State taxes 2026100 €–––
Taxes on workforce 20260 €–––
Employees 2026––––
Revenue 20250 €0 €0 €62k €
State taxes 202596 €––15k €
Taxes on workforce 20250 €––0 €
Employees 2025––––
Revenue 2024––74k €0 €
State taxes 2024–28 €16k €–
Taxes on workforce 2024–0 €0 €–
Employees 2024––––
Revenue 2023––––
State taxes 202323 €–––
Taxes on workforce 20230 €–––
Employees 2023––––
Revenue 2022––––
State taxes 202223 €–––
Taxes on workforce 20220 €–––
Employees 2022––––
2
MV
Mare Vilberg
board member, founder, shareholder 100%, ultimate beneficial owner
2 other companies›
CompanyRoleReg. code
Merelahe TK OÜ
Shareholder 33%Board memberUltimate beneficial owner
11110759
OÜ Merelahe Haldus ja Eriarstiabi
FounderUltimate beneficial ownerShareholder 33%Board member
10509940