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© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Search›Persons›Tatjana Boiko
TB
Born 29.05.1969 · 57 y

Tatjana Boiko

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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

  • Home
  • Views
  • Industries
  • Activity licences
  • Recent registrations

Data

  • 72 sources
  • Database
  • Extensions
  • MCP

Organisation

  • About
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  • For journalists
  • Donate
  • Donation terms
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  • Terms
  • Privacy
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© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
7active companies14years active
Liquidator
3
companies
Founder
3
companies
Board member
3
companies
Ultimate beneficial owner
3
companies
Shareholder
2
companies
Top role
Rationem OÜ
Shareholder + Ultimate beneficial owner + Board member + Founder
since 01.06.2012 · 14 y
Latest activity
Blockeys DEX OÜ
Liquidator
since 10.02.2026

Career timeline

e-Business Register
20122016202020242026Applied Biochemistry Consulti…Blockeys DEX OÜInterTrans OÜMTÜ PolliannaOptimaFin OÜRationem OÜSerenity Platform OÜlikvideerijalikvideerijamenetlusdok_padev_isikkasusaaja

History

e-Business Register · last 2 years
2026
10.02.2026OfficerSai likvideerijaks— Blockeys DEX OÜ · Blockeys DEX OÜ
16.01.2026OfficerSai likvideerijaks— Serenity Platform OÜ · Serenity Platform OÜ
2025
16.12.2025OfficerSai likvideerijaks— Applied Biochemistry Consulting OÜ · Applied Biochemistry Consulting OÜ
2024
11.11.2024OfficerSai osanikuks

Activity overview

e-Business Register
Roles by type
Board member3
Founder3
Shareholder2
Ultimate beneficial owner3
Liquidator3
Recipient for procedural documents1
Companies by sector

Companies (7)

e-Business Register
IO
InterTrans OÜ12193046Active
Männiku küla, Saku vald, Harju maakond·EMTAK 52229
Recipient for procedural documents · 12.12.2017
8y
active
51k €
OO
OptimaFin OÜ17111324Active
Muraste küla, Harku vald, Harju maakond·EMTAK 69202
juhatuse_liigeasutajaosanikasutajajuhatuse_liigekasusaajaosanikkasusaajajuhatuse_liigeasutajalikvideerija
Board memberFounderShareholderBeneficial ownerSupervisory board
  • Applied Biochemistry Consulting OÜ – likvideerija (2025-12-16 – now)
  • Blockeys DEX OÜ – likvideerija (2026-02-10 – now)
  • InterTrans OÜ – menetlusdok_padev_isik (2017-12-12 – now)
  • MTÜ Pollianna – kasusaaja (2018-09-07 – now), juhatuse_liige (2014-10-28 – now), asutaja (2014-10-21 – now)
  • OptimaFin OÜ – osanik (2024-11-11 – now), asutaja (2024-11-11 – now), juhatuse_liige (2024-11-11 – now), kasusaaja (2024-11-11 – now)
  • Rationem OÜ – osanik (2023-09-01 – now), kasusaaja (2018-09-07 – now), juhatuse_liige (2012-06-01 – now), asutaja (2012-06-01 – now)
  • Serenity Platform OÜ – likvideerija (2026-01-16 – now)
— OptimaFin OÜ · OptimaFin OÜ · 100 %
11.11.2024OfficerLisati tegelikuks kasusaajaks— OptimaFin OÜ · OptimaFin OÜ
11.11.2024OfficerAsutas ettevõtte— OptimaFin OÜ · OptimaFin OÜ
11.11.2024OfficerAstus juhatusse— OptimaFin OÜ · OptimaFin OÜ
Information and communication3
Professional, scientific and technical activities2
Education1
Transportation and storage1
Companies joined per year
210
201220192026
Shareholder 100% · 11.11.2024Founder · 11.11.2024Board member · 11.11.2024Ultimate beneficial owner · 11.11.2024
1y
active
23k €
RO
Rationem OÜ12296566Active
Muraste küla, Harku vald, Harju maakond·EMTAK 69202
Shareholder 100% · 01.09.2023Ultimate beneficial owner · 07.09.2018Board member · 01.06.2012Founder · 01.06.2012
14y
active
14k €
AB
Applied Biochemistry Consulting OÜ14285667Active
Mustamäe linnaosa, Tallinn, Harju maakond·EMTAK 85519
Liquidator · 16.12.2025
12k €
MP
MTÜ Pollianna80376587Active
Mustamäe linnaosa, Tallinn, Harju maakond·EMTAK 63911
Ultimate beneficial owner · 07.09.2018Board member · 28.10.2014Founder · 21.10.2014
11y
active
SP
Serenity Platform OÜ16457687Active
Kesklinna linnaosa, Tallinn, Harju maakond·EMTAK 62101
Liquidator · 16.01.2026
BD
Blockeys DEX OÜ12349015Active
Kesklinna linnaosa, Tallinn, Harju maakond·EMTAK 62021
Liquidator · 10.02.2026
0 €