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© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Search›Persons›Kai Siinmaa
KS
Born 23.04.1966 · 60 y

Kai Siinmaa

Data is aggregated from the Business Register's open data. Every role shows its source and date.

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ET/EN/RU
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nimistuEstonia'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

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  • Views
  • Industries
  • Activity licences
  • Recent registrations

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  • 79 sources
  • Database
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© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
6active companies1linked trademarks14years active
Founder
5
companies
Shareholder
5
companies
Board member
4
companies
Linked trademarks
1
1 via companies
Top role
Baltic HC Solutions OÜ
Shareholder + Board member + Founder
since 02.01.2012 · 14 y
Latest activity
Viimsi Lahe Rotary Klubi
Board member + Founder
since 04.08.2026

Career timeline

e-Business Register
20122016202020242026Baltic HC Solutions OÜHealthBook OÜHoneyMedical OÜInterface OÜS5 Invest OÜViimsi Lahe Rotary Klubiosanikjuhatuse_liigeasutajaosanikjuhatuse_liigeasutaja

History

e-Business Register · last 2 years
2026
04.08.2026OfficerAstus juhatusse— Viimsi Lahe Rotary Klubi · Viimsi Lahe Rotary Klubi
28.07.2026OfficerAsutas ettevõtte— Viimsi Lahe Rotary Klubi · Viimsi Lahe Rotary Klubi
2025
05.11.2025OfficerSai osanikuks— S5 Invest OÜ · S5 Invest OÜ · 16 %

Activity overview

e-Business Register
Roles by type
Board member4
Founder5
Shareholder5
Companies by sector
Professional, scientific and technical activities2
Information and communication1
Manufacturing1

Companies (6)

e-Business Register
BH
Baltic HC Solutions OÜ12213184Active
Pringi küla, Viimsi vald, Harju maakond·EMTAK 72101
Shareholder 50% · 01.09.2023Board member · 03.01.2012Founder · 02.01.2012
14y
active
937k €
IO
Interface OÜ14438384Active

Connected trademarks (1)

EUIPO
Trademarks owned by a company this person is connected to. The connection does not imply involvement in the mark's actual use.
HO
HealthBook OÜ12215546Board member
1 trademarks
WIZELIFE mark
WIZELIFE
090942Tech & R&D44Medical & beauty
FIGURATIVE01.06.2016 – reg 21.12.2016
osanikasutajaosanikjuhatuse_liigeasutajaosanikjuhatuse_liigeasutaja
Board memberFounderShareholderSupervisory board
  • Baltic HC Solutions OÜ – osanik (2023-09-01 – now), juhatuse_liige (2012-01-03 – now), asutaja (2012-01-02 – now)
  • HealthBook OÜ – osanik (2023-09-01 – now), juhatuse_liige (2012-01-09 – now), asutaja (2012-01-07 – now)
  • HoneyMedical OÜ – osanik (2023-09-01 – now), asutaja (2018-06-27 – now)
  • Interface OÜ – osanik (2023-09-01 – now), juhatuse_liige (2018-02-28 – now), asutaja (2018-02-27 – now)
  • S5 Invest OÜ – osanik (2025-11-05 – now)
  • Viimsi Lahe Rotary Klubi – juhatuse_liige (2026-08-04 – now), asutaja (2026-07-28 – now)
Administrative and support service activities
1
Other service activities1
Companies joined per year
210
201220192026
Pringi küla, Viimsi vald, Harju maakond·EMTAK 82401
Shareholder 60% · 01.09.2023Board member · 28.02.2018Founder · 27.02.2018
8y
active
157 €
HO
HealthBook OÜ12215546Active
Pringi küla, Viimsi vald, Harju maakond·EMTAK 62021
Shareholder 31% · 01.09.2023Board member · 09.01.2012Founder · 07.01.2012
14y
active
0 €
HO
HoneyMedical OÜ14515601Active
Pärnu linn, Pärnu linn, Pärnu maakond·EMTAK 21201
Shareholder 20% · 01.09.2023Founder · 27.06.2018
8y
active
0 €
SI
S5 Invest OÜ16422358Active
Kesklinna linnaosa, Tallinn, Harju maakond·EMTAK 70201
Shareholder 16% · 05.11.2025
0 €
VL
Viimsi Lahe Rotary Klubi80676295Active
Pringi küla, Viimsi vald, Harju maakond·EMTAK 94995
Board member · 04.08.2026Founder · 28.07.2026
#015497266
Registered