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Search›Persons›Jüri Preobraženski
JP
Born 22.05.1990 · 36 y

Jüri Preobraženski

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nimistuEstonia's public business register
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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

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© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
6active companies16years active
Founder
6
companies
Ultimate beneficial owner
5
companies
Board member
5
companies
Shareholder
5
companies
Top role
OÜ Roxten Partners
Shareholder + Ultimate beneficial owner + Board member + Founder
since 03.05.2010 · 16 y
Latest activity
OÜ Riftgain
Founder + Ultimate beneficial owner + Board member + Shareholder
since 19.08.2025

Career timeline

e-Business Register
20102015202020252026Groundcall OÜHarmond OÜOÜ RiftgainOÜ Roxten PartnersPreo Koolitused OÜSpark Research OÜasutajakasusaajaosanikjuhatuse_liigeasutajaasutaja

History

e-Business Register · last 2 years
2025
19.08.2025OfficerSai osanikuks— OÜ Riftgain · OÜ Riftgain · 100 %
19.08.2025OfficerLisati tegelikuks kasusaajaks— OÜ Riftgain · OÜ Riftgain
19.08.2025OfficerAsutas ettevõtte— OÜ Riftgain · OÜ Riftgain
19.08.2025OfficerAstus juhatusse— OÜ Riftgain · OÜ Riftgain

Activity overview

e-Business Register
Roles by type
Board member5
Founder6
Shareholder5
Ultimate beneficial owner5
Companies by sector
Real estate activities3
Education2

Companies (6)

e-Business Register
HO
Harmond OÜ16461002Active
Peetri alevik, Rae vald, Harju maakond·EMTAK 6832
Founder · 15.03.2022
4y
active
90k €
OR
OÜ Roxten Partners11935403Active
Pirita linnaosa, Tallinn, Harju maakond·EMTAK 8559
kasusaajajuhatuse_liigeosanikosanikkasusaajajuhatuse_liigeasutajaosanikkasusaajaasutajajuhatuse_liigejuhatuse_liigeosanikkasusaajaasutaja
Board memberFounderShareholderBeneficial ownerSupervisory board
  • Groundcall OÜ – asutaja (2025-06-26 – now), kasusaaja (2025-06-26 – now), osanik (2025-06-26 – now), juhatuse_liige (2025-06-26 – now)
  • Harmond OÜ – asutaja (2022-03-15 – now)
  • OÜ Riftgain – asutaja (2025-08-19 – now), kasusaaja (2025-08-19 – now), juhatuse_liige (2025-08-19 – now), osanik (2025-08-19 – now)
  • OÜ Roxten Partners – osanik (2023-09-02 – now), kasusaaja (2018-09-17 – now), juhatuse_liige (2010-05-04 – now), asutaja (2010-05-03 – now)
  • Preo Koolitused OÜ – osanik (2023-09-02 – now), kasusaaja (2018-09-17 – now), asutaja (2013-02-25 – now), juhatuse_liige (2013-02-25 – now)
  • Spark Research OÜ – juhatuse_liige (2025-07-15 – now), osanik (2025-07-15 – now), kasusaaja (2025-07-15 – now), asutaja (2025-07-14 – now)
15.07.2025
OfficerSai osanikuks— Spark Research OÜ · Spark Research OÜ · 100 %
15.07.2025OfficerLisati tegelikuks kasusaajaks— Spark Research OÜ · Spark Research OÜ
15.07.2025OfficerAstus juhatusse— Spark Research OÜ · Spark Research OÜ
14.07.2025OfficerAsutas ettevõtte— Spark Research OÜ · Spark Research OÜ
26.06.2025OfficerSai osanikuks— Groundcall OÜ · Groundcall OÜ · 50 %
26.06.2025OfficerLisati tegelikuks kasusaajaks— Groundcall OÜ · Groundcall OÜ
26.06.2025OfficerAsutas ettevõtte— Groundcall OÜ · Groundcall OÜ
26.06.2025OfficerAstus juhatusse— Groundcall OÜ · Groundcall OÜ
Information and communication1
Companies joined per year
320
201020182025
Shareholder 100% · 02.09.2023Ultimate beneficial owner · 17.09.2018Board member · 04.05.2010Founder · 03.05.2010
16y
active
18k €
PK
Preo Koolitused OÜ12427005Active
Jausa küla, Hiiumaa vald, Hiiu maakond·EMTAK 8559
Shareholder 100% · 02.09.2023Ultimate beneficial owner · 17.09.2018Founder · 25.02.2013Board member · 25.02.2013
13y
active
100 €
GO
Groundcall OÜ17269723Active
Jausa küla, Hiiumaa vald, Hiiu maakond·EMTAK 68111
Founder · 26.06.2025Ultimate beneficial owner · 26.06.2025Shareholder 50% · 26.06.2025Board member · 26.06.2025
1y
active
SR
Spark Research OÜ17282830Active
Jausa küla, Hiiumaa vald, Hiiu maakond·EMTAK 63921
Board member · 15.07.2025Shareholder 100% · 15.07.2025Ultimate beneficial owner · 15.07.2025Founder · 14.07.2025
OR
OÜ Riftgain17307234Active
Jausa küla, Hiiumaa vald, Hiiu maakond·EMTAK 68111
Founder · 19.08.2025Ultimate beneficial owner · 19.08.2025Board member · 19.08.2025Shareholder 100% · 19.08.2025