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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 · 22 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
  • Activity licences
  • Recent registrations

Data

  • 79 sources
  • Database
  • Extensions
  • MCP

Organisation

  • About
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  • For journalists
  • Donate
  • Donation terms
  • Refunds
  • Terms
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  • Contact
© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Revenue
0 €
Employees
–
2025 annual report
Taxes paid
–
Tax debt
0 €
As of 10.08.2026 (MTA)

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

Data · 6 sourcese-Business Register · 6 min agoGLEIF
e-Business Register ↗
Revenue
0 €
Employees
–
2025 annual report
Taxes paid
–
Tax debt
€0
As of 10.08.2026 (MTA)

Officers (2)

e-Business Register · 22 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 · 22 h ago
PS
Paula Siinmaa
Born 1989 · 36 y · founder since 13.01.2022
Founder · 1k €
MS
Mihkel Siinmaa
Born 1992 · 33 y · founder since 13.01.2022
Founder · 1k €

Shareholders (4)

e-Business Register · 22 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

Annual reports (4)

e-Business Register · annual reports · 6 päeva tagasi
Revenue 2025
0 €
Employees 2025
0
YearRevenueProfitEquityAssetsEmployees
2025

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
21.07.2026ReportEsitati 2025. aasta aruanne— Käive 0 €
2025
05.11.2025OfficerSai osanikuks4×expand ›hide ⌃
  • Mihkel Siinmaa · · 28 %
  • Kai Siinmaa · · 16 %
  • Andres Siinmaa · · 28 %
  • Paula Siinmaa · · 28 %
05.11.2025

Connected companies

Same-person ties · e-Business Register

S5 Invest OÜ is connected to 11 other companies through 4 people who hold a role here and elsewhere. The strongest tie runs through Kai Siinmaa (5 companies).

Total connections
11
via 4 people
Connecting people
4
Active here
Distinct roles
3
Board member · Founder
Strongest tie
Kai
5 companies
Via personKai Siinmaa
Kai Siinmaa
Born 1966 · 60 y · shareholder since 05.11.2025
Shareholder 16% · 400 €
0 €
488 €
16k €
69k €
0
21.07.2026
20240 €2812 €15k €36k €003.09.2025
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
FilingMuutmiskanne
2×
expand ›
hide ⌃
  • Ä 50194426 / 3 · Olek: Jõustunud
  • Kanne nr 3 · kanne
03.09.2025ReportEsitati 2024. aasta aruanne— Käive 0 €
5
Mihkel Siinmaa2
Paula Siinmaa2
Andres Siinmaa2
KS
Kai Siinmaa
shareholder 16%
5 other companies›
CompanyRoleReg. code
Baltic HC Solutions OÜ
Board memberFounderShareholder 50%
12213184
HealthBook OÜ
Board memberFounderShareholder 31%
12215546
HoneyMedical OÜ
Shareholder 20%Founder
14515601
Interface OÜ
Shareholder 60%FounderBoard member
14438384
Viimsi Lahe Rotary Klubi
Board memberFounder
80676295
MS
Mihkel Siinmaa
board member, founder, shareholder 28%
2 other companies›
CompanyRoleReg. code
Interface OÜ
Shareholder 20%
14438384
Levare OÜ
Founder
12699229
PS
Paula Siinmaa
board member, founder, shareholder 28%
2 other companies›
CompanyRoleReg. code
Baltic HC Solutions OÜ
Board memberShareholder 50%
12213184
Interface OÜ
Shareholder 20%
14438384
AS
Andres Siinmaa
shareholder 28%
2 other companies›
CompanyRoleReg. code
KLIENDIAKEN OÜ
Founder
17475109
Midagi Head OÜ
Shareholder 50%FounderBoard member
17179530

Analysis · 2025

computed from annual reports
Revenue0 €median 29k €0% of the sector median
Equity ratio22.8%
Current ratio0.64current assets cover under 1× liabilities
Compared with2024revenue 0 €

Peer group: Äri- ja muu juhtimisalane nõustamine, 7,461 trading companies that filed a report in the last three years.

Founded 2022. That year 16,826 osaühing were registered; 16,285 are still trading, or 96.8%.