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Address: Parda tn 8, 10151 Tallinn, Estonia
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© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
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Search›Companies›Alumni OÜ
11343625ActivePrivate limited companyEE101150257 · VAT-registered

Alumni OÜ

Harju maakond, Tallinn, Põhja-Tallinna linnaosa, Vana-Kalamaja tn 22-3·EMTAK 71129 — Other engineering-technical activities·19+ years
Andmed · ···
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Overview

e-Business Register · 15 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
30.01.2007e-Business Register
Address
Vana-Kalamaja tn 22-3, Põhja-Tallinna linnaosa, Tallinn, 10414 Harju maakondADS · e-Business Register
E-mail address
hannes.tarn@gmail.come-Business Register
Telephone
+372 56359511· Tele2 Eesti Aktsiaseltse-Business Register · TTJA NBA
Principal activity
EMTAK 71129 - Other engineering-technical activitiese-Business Register · ETCB
VAT number
ETCB · VAT-registered
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

Registered 30. jaanuar 2007, primary activity: Other engineering-technical activities. Main place of business in Põhja-Tallinna linnaosa, Tallinn, Harju maakond.

Data · 7 sourcese-Business Register · 6 min agoMTA
e-Business Register ↗
Revenue 2026 (I kv)
1k €
▲ Infinity% vs 2024
As of 10.04.2026 (MTA)
Employees
–
2026 (MTA)
Taxes paid
14 €
State + labour taxes · 2026 (I kv)
Tax debt
€0
As of 25.06.2026 (MTA)

Officers

e-Business Register · 15 h ago
HT
Hannes Tarn
Born 1971 · 54 y · board member since 12.02.2007
Board member

Founders

e-Business Register · 15 h ago
OA
OÜ Altius ConsultFOREIGN
Foreign / not in register · founder since 30.01.2007
Founder

Shareholders

e-Business Register · 15 h ago
HT
Hannes Tarn
Born 1971 · 54 y · shareholder since 01.09.2023
Shareholder 100%

Beneficial owners

e-Business Register · 15 h ago
HT
Hannes Tarn
Born 1971 · 54 y · ultimate beneficial owner since 11.09.2018
Ultimate beneficial owner

Subsidiaries

e-Business Register · shareholders · 15 h ago

Alumni OÜ is a shareholder or officer in 1 more company.

Remass OÜ
FounderShareholder 50%

Annual reports (7)

e-Business Register · annual reports · 5 päeva tagasi
Revenue 2025
1k €
State taxes 2024
3k €
↘ -57.2% vs 2023
Employees 2025
0
↘ -100.0% vs 2024
YearRevenueProfitEquity

Taxes, revenue and employees

Estonian Tax and Customs Board · 10.04.2026 as of
20k €10k €0

Tech stack

Tehnoloogiad
Mobile carrier
+372 56359511Tele2 Eesti Aktsiaselts

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
25.05.2026ReportEsitati 2025. aasta aruanne— Käive 1200 €
2025
14.05.2025ReportEsitati 2024. aasta aruanne— Käive 0 €

Connected companies

Same-person ties · e-Business Register

Alumni OÜ is connected to 7 other companies through 1 person who hold a role here and elsewhere. The strongest tie runs through Hannes Tarn (7 companies).

Total connections
7
via 1 person
Connecting people
1
Active here
Distinct roles
3
Board member · Shareholder
Strongest tie
Hannes
7 companies
Via personHannes Tarn
Assets
Employees
20251200 €−1469 €1k €1k €025.05.2026
20240 €−18 359 €1k €2k €114.05.2025
202315 015 €−6103 €-3k €13k €102.06.2024
202226 681 €2434 €3k €29k €131.05.2023
202144 100 €17 210 €11k €12k €130.06.2022
202077 080 €23 129 €17k €20k €005.05.2021
201993 208 €21 334 €16k €20k €005.05.2021
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 Q1200 €14 €0 €–
20250 €876 €946 €1
20240 €3016 €3224 €1
202333 865 €7051 €3458 €1
20227831 €5688 €4295 €1
Quarterly breakdown
YearQ1Q2Q3Q4
Revenue 20261k €–––
State taxes 202614 €–––
Taxes on workforce 20260 €–––
Employees 2026––––
Revenue 20250 €0 €0 €0 €
State taxes 2025807 €69 €––
Taxes on workforce 2025863 €83 €––
Employees 20251–––
Revenue 20240 €0 €0 €0 €
State taxes 2024754 €754 €754 €754 €
Taxes on workforce 2024806 €806 €806 €806 €
Employees 20241111
Revenue 202319k €0 €15k €0 €
State taxes 20233k €753 €3k €753 €
Taxes on workforce 20231k €806 €806 €806 €
Employees 20231111
Revenue 20227k €0 €0 €596 €
State taxes 20222k €2k €1k €591 €
Taxes on workforce 20221k €1k €2k €519 €
Employees 20222321
7
HT
Hannes Tarn
board member, shareholder 100%, ultimate beneficial owner
7 other companies›
CompanyRoleReg. code
FEDI OÜ
Shareholder 32%Board memberUltimate beneficial owner
11696753
Fiskostar Kodu OÜ
Founder
11511133
Kristlaste Ühenduse Tallinna kogudus
Board memberUltimate beneficial owner
80221689
Remass OÜ
Ultimate beneficial ownerBoard member
17461685
Sharkbac OÜ
FounderUltimate beneficial ownerShareholder 25%Board member
14536498
Thap OÜ
Board memberFounderUltimate beneficial ownerShareholder 100%
14596373
Thule Trade OÜ
Shareholder 77%Board memberFounderUltimate beneficial owner
11588217
Revenue 2026 (I kv)
1200 €
▲ Infinity% vs 2024
As of 10.04.2026 (MTA)
Employees
–
2026 (MTA)
Taxes paid
14 €
State + labour taxes · 2026 (I kv)
Tax debt
0 €
As of 25.06.2026 (MTA)