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Search›Companies›S5 Invest OÜ
16422358ActivePrivate limited company

S5 Invest OÜ

Harju maakond, Tallinn, Kesklinna linnaosa, Virmalise tn 7-16·EMTAK 70201 — Business and other management consultancy activities·4+ years
Andmed · ···
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Overview

e-Business Register · 7 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
14.01.2022e-Business Register
Address
Virmalise tn 7-16, Kesklinna linnaosa, Tallinn, 10131 Harju maakondADS · e-Business Register
E-mail address
mihkelsiinmaa2@gmail.come-Business Register
Principal activity
EMTAK 70201 - Business and other management consultancy activitiese-Business Register · ETCB
Share capital
2500,00 €e-Business Register
LEI
2549004ZV47E376NSM59 · issued 25.02.2022GLEIF
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
0 €
▼ NaN% vs 2023
Employees
–
2024 annual report
Taxes paid
–
Tax debt
0 €
As of 26.06.2026 (MTA)

Registered 14. jaanuar 2022, primary activity: Business and other management consultancy activities. Main place of business in Kesklinna linnaosa, Tallinn, Harju maakond.

Data · 7 sourcese-Business Register · 6 min agoGLEIF
e-Business Register ↗
Revenue
0 €
▼ NaN% vs 2023
Employees
–
2024 annual report
Taxes paid
–
Tax debt
€0
As of 26.06.2026 (MTA)

Officers (2)

e-Business Register · 7 h ago
MS
Mihkel Siinmaa
Born 1992 · 33 y · board member since 14.01.2022
Board member
PS
Paula Siinmaa
Born 1989 · 36 y · board member since 14.01.2022
Board member

Founders (2)

e-Business Register · 7 h ago
MS
Mihkel Siinmaa
Born 1992 · 33 y · founder since 13.01.2022
Founder · 1k €
PS
Paula Siinmaa
Born 1989 · 36 y · founder since 13.01.2022
Founder · 1k €

Shareholders (4)

e-Business Register · 7 h ago
MS
Mihkel Siinmaa
Born 1992 · 33 y · shareholder since 05.11.2025
Shareholder 28% · 700 €
PS
Paula Siinmaa
Born 1989 · 36 y · shareholder since 05.11.2025
Shareholder 28% · 700 €
AS
Andres Siinmaa
Born 2004 · 22 y · shareholder since 05.11.2025
Shareholder 28% · 700 €
KS

Beneficial owners (4)

e-Business Register · 7 h ago
AS
Andres Siinmaa
Born 2004 · 22 y · ultimate beneficial owner since 29.10.2025
Ultimate beneficial owner
KS
Kai Siinmaa
Born 1966 · 60 y · ultimate beneficial owner since 29.10.2025
Ultimate beneficial owner
MS
Mihkel Siinmaa
Born 1992 · 33 y · ultimate beneficial owner since 29.10.2025
Ultimate beneficial owner

Annual reports (3)

e-Business Register · annual reports · 6 päeva tagasi
Revenue 2024
0 €
Employees 2024
0
YearRevenueProfitEquityAssetsEmployees
2024

History

last 2 years · MTA + ÄR + MTR + Procurements
2025
05.11.2025OfficerSai osanikuks4×expand ›hide ⌃
  • Mihkel Siinmaa · · 28 %
  • Kai Siinmaa · · 16 %
  • Andres Siinmaa · · 28 %
  • Paula Siinmaa · · 28 %
05.11.2025FilingMuutmiskanne2×expand ›hide ⌃

Connected companies

Same-person ties · e-Business Register

S5 Invest OÜ is connected to 10 other companies through 4 people who hold a role here and elsewhere. The strongest tie runs through Kai Siinmaa (4 companies).

Total connections
10
via 4 people
Connecting people
4
Active here
Distinct roles
4
Board member · Founder
Strongest tie
Kai
4 companies
Via personKai Siinmaa
Kai Siinmaa
Born 1966 · 60 y · shareholder since 05.11.2025
Shareholder 16% · 400 €
PS
Paula Siinmaa
Born 1989 · 36 y · ultimate beneficial owner since 29.10.2025
Ultimate beneficial owner
0 €
2812 €
15k €
36k €
0
03.09.2025
20230 €1468 €12k €32k €020.07.2024
202210 000 €1623 €11k €31k €026.06.2023
Original files in PDF – the full register on e-Business Register.View reports on e-Business Register
  • Ä 50194426 / 3 · Olek: Jõustunud
  • Kanne nr 3 · kanne
    • 29.10.2025OfficerLisati tegelikuks kasusaajaks4×expand ›hide ⌃
    • Paula Siinmaa
    • Mihkel Siinmaa
    • Kai Siinmaa
    • Andres Siinmaa
    03.09.2025ReportEsitati 2024. aasta aruanne— Käive 0 €
    2024
    20.07.2024ReportEsitati 2023. aasta aruanne— Käive 0 €
    19.07.2024FilingTrahvihoiatusmäärus: majandusaasta aruanne esitamata— Ä 50194426 / M1 · Olek: Puudused kõrvaldatud
    4
    Mihkel Siinmaa2
    Paula Siinmaa2
    Andres Siinmaa2
    KS
    Kai Siinmaa
    shareholder 16%, ultimate beneficial owner
    4 other companies›
    CompanyRoleReg. code
    Baltic HC Solutions OÜ
    FounderUltimate beneficial ownerShareholder 50%Board member
    		12213184
    HealthBook OÜ
    FounderUltimate beneficial ownerShareholder 31%Board member
    		12215546
    HoneyMedical OÜ
    FounderUltimate beneficial ownerShareholder 20%
    		14515601
    Interface OÜ
    FounderUltimate beneficial ownerShareholder 60%Board member
    		14438384
    MS
    Mihkel Siinmaa
    board member, founder, shareholder 28%, ultimate beneficial owner
    2 other companies›
    CompanyRoleReg. code
    Interface OÜ
    Shareholder 20%
    		14438384
    Levare OÜ
    Founder
    		12699229
    PS
    Paula Siinmaa
    board member, founder, shareholder 28%, ultimate beneficial owner
    2 other companies›
    CompanyRoleReg. code
    Baltic HC Solutions OÜ
    Ultimate beneficial ownerShareholder 50%Board member
    		12213184
    Interface OÜ
    Shareholder 20%
    AS
    Andres Siinmaa
    shareholder 28%, ultimate beneficial owner
    2 other companies›
    CompanyRoleReg. code
    KLIENDIAKEN OÜ
    Founder
    		17475109
    Midagi Head OÜ
    Board memberFounderUltimate beneficial ownerShareholder 50%
    14438384
    17179530