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© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Search›Persons›Jaanus Tamm
JT
Born 01.08.1978 · 47 y

Jaanus Tamm

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

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ContactTerms
ET/EN/RU
EN
EestiEnglishРусский
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
  • 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
17active companies15linked trademarks20years active
Ultimate beneficial owner
13
companies
Board member
12
companies
Founder
6
companies
Shareholder
2
companies
Linked trademarks
15
3 via companies
Top role
JT Ventures OÜ
Shareholder + Ultimate beneficial owner + Founder + Board member
since 23.12.2005 · 20 y
Latest activity
DSIS Industries OÜ
Board member + Ultimate beneficial owner
since 03.11.2025

History

e-Business Register · last 2 years
2025
03.11.2025OfficerLisati tegelikuks kasusaajaks— DSIS Industries OÜ · DSIS Industries OÜ
03.11.2025OfficerAstus juhatusse— DSIS Industries OÜ · DSIS Industries OÜ
03.01.2025OfficerLisati tegelikuks kasusaajaks— OÜ QHS-Power Solutions · OÜ QHS-Power Solutions
03.01.2025OfficerAstus juhatusse— OÜ QHS-Power Solutions · OÜ QHS-Power Solutions
⚠

Address shared by 226 companies (this person at 1 of them): Harju maakond, Tallinn, Kesklinna linnaosa, Hobujaama tn 4.

The address is likely a corporate-services bureau / virtual office shared by many unrelated entities.

Activity overview

e-Business Register
Roles by type
Board member12
Founder6
Shareholder2
Ultimate beneficial owner13
Companies by sector
Manufacturing6
Professional, scientific and technical activities

Companies (17)

e-Business Register
DS
Defsecintel Solutions OÜ14514582Active
Nõmme linnaosa, Tallinn, Harju maakond·EMTAK 28991
Ultimate beneficial owner · 30.10.2018Board member · 27.06.2018
7y
active
42,4m €
DO
Defendec OÜ11306995Active

Ended roles (1)

e-Business Register

roles that have ended in the register (the person has departed); we show departures from the last five years.

DH
Defendec Holding OÜ14232837Ended
Supervisory board member · 04.07.2018 – 06.09.2024

Connected trademarks (14)

EUIPO
Trademarks owned by a company this person is connected to. The connection does not imply involvement in the mark's actual use.
DS
Defsecintel Solutions OÜ14514582Board member
7 trademarks
A3r0štšit (Aeroštšit) mark
A3r0štšit (Aeroštšit)
090913Firearms
Figurative-word12.11.2024 – reg 17.03.2025#M202401025
Registered
3
Other service activities3
Financial and insurance activities2
Information and communication2
Real estate activities1
Companies joined per year
420
200520152025
Põhja-Tallinna linnaosa, Tallinn, Harju maakond·EMTAK 32991
Founder · 12.10.2006
19y
active
7,8m €
AS
Atalanta Systems OÜ16884248Active
Mustamäe linnaosa, Tallinn, Harju maakond·EMTAK 28991
Ultimate beneficial owner · 22.12.2023Board member · 22.12.2023
2y
active
2,1m €
JV
JT Ventures OÜ11206242Active
Mustamäe linnaosa, Tallinn, Harju maakond·EMTAK 62901
Shareholder 100% · 01.09.2023Ultimate beneficial owner · 30.10.2018Founder · 23.12.2005Board member · 23.12.2005
20y
active
1,7m €
JA
JT Advisors OÜ16895080Active
Mustamäe linnaosa, Tallinn, Harju maakond·EMTAK 70201
Ultimate beneficial owner · 21.02.2024Board member · 10.01.2024
2y
active
1,1m €
DO
DSIProjects OÜ12956382Active
Mustamäe linnaosa, Tallinn, Harju maakond·EMTAK 72101
Board member · 01.11.2018Ultimate beneficial owner · 01.11.2018
7y
active
615k €
DO
DSISOperations OÜ16687795Active
Mustamäe linnaosa, Tallinn, Harju maakond·EMTAK 28991
Board member · 03.03.2023Ultimate beneficial owner · 03.03.2023
3y
active
314k €
1O
1SIZEFITSALL OÜ16930913Active
Mustamäe linnaosa, Tallinn, Harju maakond·EMTAK 68201
Board member · 28.02.2024Ultimate beneficial owner · 28.02.2024
2y
active
16k €
ST
Smartdust Technologies OÜ11676388Active
Põhja-Tallinna linnaosa, Tallinn, Harju maakond·EMTAK 63991
Shareholder 49% · 01.09.2023Ultimate beneficial owner · 30.10.2018Board member · 17.06.2009Founder · 17.06.2009
17y
active
0 €
MA
Mittetulundusühing Asutajad80305937Active
Kesklinna linnaosa, Tallinn, Harju maakond·EMTAK 94999
Founder · 03.03.2010
16y
active
EK
Eesti Kaitse- ja Kosmosetööstuse Liit80282573Active
Lasnamäe linnaosa, Tallinn, Harju maakond·EMTAK 94119
Ultimate beneficial owner · 31.10.2018
7y
active
CB
CyberNorth Batch-1 OÜ14657844Active
Põhja-Tallinna linnaosa, Tallinn, Harju maakond·EMTAK 64211
Ultimate beneficial owner · 07.07.2022Board member · 08.02.2019
7y
active
0 €
MO
MTÜ Organisation for Development, Security and Sustainment80587628Active
Kesklinna linnaosa, Tallinn, Harju maakond·EMTAK 70201
Founder · 28.10.2020
5y
active
SS
Sirentech Solutions OÜ16952777Active
Nasva alevik, Saaremaa vald, Saare maakond·EMTAK 28991
Ultimate beneficial owner · 27.03.2024Board member · 27.03.2024
2y
active
ME
MTÜ EuroGuard Alliance80641724Active
Mustamäe linnaosa, Tallinn, Harju maakond·EMTAK 94999
Founder · 11.06.2024
2y
active
OQ
OÜ QHS-Power Solutions17147256Active
Mustamäe linnaosa, Tallinn, Harju maakond·EMTAK 28991
Ultimate beneficial owner · 03.01.2025Board member · 03.01.2025
1y
active
DI
DSIS Industries OÜ17363578Active
Mustamäe linnaosa, Tallinn, Harju maakond·EMTAK 64211
Board member · 03.11.2025Ultimate beneficial owner · 03.11.2025
Аеroštšit mark
Аеroštšit
090913Firearms
Figurative-word09.10.2024#M202400893
TERMINATED
EIRSHIELD
090913Firearms
Word09.06.2024 – reg 17.09.2024#M202400503
Registered
DFNCAI
0909
Word28.09.2023 – reg 07.01.2024#M202300876
Registered
SURVEILSPIRE
090912Vehicles42Tech & R&D+1
WORD15.01.2021 – reg 06.05.2021#018376194
Registered
SURVEILAIZ
090912Vehicles42Tech & R&D+1
WORD15.01.2021 – reg 06.05.2021#018376192
Registered
Show remaining (1)
DEFSECINTEL
090945Legal & security
WORD22.12.2020 – reg 23.04.2021#018361560
Registered
AS
Atalanta Systems OÜ16884248Board member
6 trademarks
FREYA
12Vehicles13Firearms
Word20.04.2025 – reg 16.07.2025#M202500386
Registered
LENDVA
13Firearms
Word15.01.2025 – reg 07.04.2025#M202500039
Registered
TARAPITA
13Firearms
Word08.11.2024 – reg 06.02.2025#M202401008
Registered
SYNOECA
090912Vehicles
Word08.01.2024 – reg 03.04.2024#M202400020
Registered
TOXON
090913Firearms
Word08.01.2024 – reg 03.04.2024#M202400019
Registered
ATALANTA SYSTEMS
090942Tech & R&D
Word08.01.2024 – reg 03.04.2024#M202400018
Registered
EK
Eesti Kaitse- ja Kosmosetööstuse Liit80282573Ultimate beneficial owner
2 trademarks
ESTONIAN DEFENCE WEEK mark
ESTONIAN DEFENCE WEEK
35Advertising & business41Education & entertainment
FIGURATIVE23.04.2025 – reg 29.08.2025#019176920
Registered
EDW
35Advertising & business41Education & entertainment
WORD23.04.2025 – reg 29.08.2025#019176890
Registered