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Search›Companies›Study K&A OÜ
14342224ActivePrivate limited company

Study K&A OÜ

Harju maakond, Tallinn, Mustamäe linnaosa, Sipelga tn 3a-45·EMTAK 72101 — Research and experimental development on natural sciences and engineering·8+ years
Andmed · ···
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Overview

e-Business Register · 10 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
29.09.2017e-Business Register
Address
Sipelga tn 3a-45, Mustamäe linnaosa, Tallinn, 13423 Harju maakondADS · e-Business Register
E-mail address
kadri.lilienthal1@gmail.come-Business Register
Telephone
+372 5214427· Telia Eesti ASe-Business Register · TTJA NBA
Principal activity
EMTAK 72101 - Research and experimental development on natural sciences and engineeringe-Business Register · ETCB
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
  • Database
  • Extensions
  • MCP

Organisation

  • About
  • For journalists
  • Donation terms
  • Refunds
  • Terms
  • Privacy
  • Contact
© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Revenue 2026
14 970 €
▲ 177% vs 2024
As of 10.04.2026 (MTA)
Employees
4
2026 (MTA)
Taxes paid
1269 €
State + labour taxes · 2026 (I kv)
Tax debt
0 €
As of 25.06.2026 (MTA)

Registered 29. september 2017, primary activity: Research and experimental development on natural sciences and engineering. Main place of business in Mustamäe linnaosa, Tallinn, Harju maakond.

Data · 7 sourcese-Business Register · 9 min agoMTA
e-Business Register ↗
Revenue 2026
15k €
▲ 177% vs 2024
As of 10.04.2026 (MTA)
Employees
4
2026 (MTA)
Taxes paid
1k €
State + labour taxes · 2026 (I kv)
Tax debt
€0
As of 25.06.2026 (MTA)

Officers (2)

e-Business Register · 10 h ago
AA
Asta Auerbach
Born 1959 · 66 y · board member since 29.09.2017
Board member
KL
Kadri Lilienthal
Born 1973 · 53 y · board member since 29.09.2017
Board member

Founders (2)

e-Business Register · 10 h ago
AA
Asta Auerbach
Born 1959 · 66 y · founder since 29.09.2017
Founder · 1k €
KL
Kadri Lilienthal
Born 1973 · 53 y · founder since 29.09.2017
Founder · 1k €

Shareholders (2)

e-Business Register · 10 h ago
KL
Kadri Lilienthal
Born 1973 · 53 y · shareholder since 01.09.2023
Shareholder 50% · 1k €
AA
Asta Auerbach
Born 1959 · 66 y · shareholder since 01.09.2023
Shareholder 50% · 1k €

Beneficial owners (2)

e-Business Register · 10 h ago
AA
Asta Auerbach
Born 1959 · 66 y · ultimate beneficial owner since 12.09.2018
Ultimate beneficial owner
KL
Kadri Lilienthal
Born 1973 · 53 y · ultimate beneficial owner since 12.09.2018
Ultimate beneficial owner

Annual reports (7)

e-Business Register · annual reports · 5 päeva tagasi
Revenue 2025
15k €
↗ +177% vs 2024
Employees 2025
0
YearRevenueProfitEquityAssetsEmployees

Taxes and employees

Estonian Tax and Customs Board · 10.04.2026 as of
YearRevenue (a)State taxesTaxes on workforceEmployees (Q4)
2026—1269 €0 €4
2025—1457 €1566 €4
2024—1394 €753 €2
2023—850 €816 €

Tech stack

Tehnoloogiad
Mobile carrier
+372 5214427Telia Eesti AS

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
29.05.2026ReportEsitati 2025. aasta aruanne— Käive 14 970 €
2025
24.06.2025ReportEsitati 2024. aasta aruanne— Käive 5396 €

Connected companies

Same-person ties · e-Business Register

Study K&A OÜ is connected to 3 other companies through 2 people who hold a role here and elsewhere. The strongest tie runs through Kadri Lilienthal (2 companies).

Total connections
3
via 2 people
Connecting people
2
Active here
Distinct roles
4
Board member · Founder
Strongest tie
Kadri
2 companies
Via personKadri Lilienthal
202514 970 €6494 €7k €8k €029.05.2026
20245396 €−11 142 €5k €5k €024.06.2025
202310 409 €6394 €20k €20k €210.05.2024
20226024 €910 €13k €13k €221.06.2023
202116 210 €13 050 €16k €16k €220.06.2022
20203013 €252 €6k €7k €230.06.2021
20195920 €−4853 €8k €8k €526.08.2020
Original files in PDF – the full register on e-Business Register.View reports on e-Business Register
2
2022—1486 €972 €3
Quarterly breakdown
YearQ1Q2Q3Q4
Revenue 2026––––
State taxes 20261k €–––
Taxes on workforce 20260 €–––
Employees 20264–––
Revenue 2025––––
State taxes 2025–––1k €
Taxes on workforce 2025–––2k €
Employees 20252244
Revenue 2024––––
State taxes 2024–––1k €
Taxes on workforce 2024–––753 €
Employees 20242222
Revenue 2023––––
State taxes 2023––850 €–
Taxes on workforce 2023––816 €–
Employees 20233222
Revenue 2022––––
State taxes 2022–770 €716 €–
Taxes on workforce 2022–835 €137 €–
Employees 20229333
2
Asta Auerbach1
KL
Kadri Lilienthal
board member, founder, shareholder 50%, ultimate beneficial owner
2 other companies›
CompanyRoleReg. code
Eesti Nefroloogide Selts
Board memberUltimate beneficial owner
80072203
Loku järve külaselts
Founder
80313316
AA
Asta Auerbach
board member, founder, shareholder 50%, ultimate beneficial owner
1 other company›
CompanyRoleReg. code
Eesti Kudede ja Organite Transplantatsiooni Ühing
Board memberUltimate beneficial owner
80087831