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Search›Companies›JT Ventures OÜ
11206242ActivePrivate limited companyEE101264172 · VAT-registered

JT Ventures OÜ

Harju maakond, Tallinn, Mustamäe linnaosa, Akadeemia tee 21/6·EMTAK 62901 — Other information technology and computer service activities·20+ years
Andmed · ···
On this page
SanctionsOverviewOfficersShareholdersFoundersBeneficial ownersOther rolesForeign parentSubsidiariesFinancialsTax filingsPledgesPledges as creditorLicencesNoticesTech stackCourt rulingsTVK decisionsBlacklistLabour inspectorateHazardous facilityDPA decisionsTax-deductibleEU lobby registerTrademarksPatentsReal estateVehiclesGrantsProcurementsState paymentsActivityConnected companies
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Overview

e-Business Register · 9 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
23.12.2005e-Business Register
Address
Akadeemia tee 21/6, Mustamäe linnaosa, Tallinn, 12618 Harju maakondADS · e-Business Register
E-mail address
jaanus.tamm@gmail.come-Business Register
Telephone
+372 53402633· Telia Eesti ASe-Business Register · TTJA NBA
Principal activity
EMTAK 62901 - Other information technology and computer service activitiese-Business Register · ETCB
VAT number
ETCB · VAT-registered
Share capital
2556,00 €e-Business Register
LEI
984500DBCCF7A9C77449 · issued 30.05.2023 · renewal overdue 27dGLEIF
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
  • 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
Data · 8 sourcese-Business Register · 9 min agoMTAGLEIF
e-Business Register ↗

Registered 23. detsember 2005, primary activity: Other information technology and computer service activities. Main place of business in Mustamäe linnaosa, Tallinn, Harju maakond.

Revenue 2026 (I kv)
0 €
▼ 100% vs 2025 I kv
As of 10.04.2026 (MTA)
Employees
–
2026 (MTA)
Taxes paid
–
Tax debt
0 €
As of 25.06.2026 (MTA)
Revenue 2026 (I kv)
0 €
▼ 100% vs 2025 I kv
As of 10.04.2026 (MTA)
Employees
–
2026 (MTA)
Taxes paid
–
Tax debt
€0
As of 25.06.2026 (MTA)

Officers

e-Business Register · 9 h ago
JT
Jaanus Tamm
Born 1978 · 47 y · board member since 23.12.2005
Board member

Founders

e-Business Register · 9 h ago
JT
Jaanus Tamm
Born 1978 · 47 y · founder since 23.12.2005
Founder

Shareholders

e-Business Register · 9 h ago
JT
Jaanus Tamm
Born 1978 · 47 y · shareholder since 01.09.2023
Shareholder 100% · 3k €

Beneficial owners

e-Business Register · 9 h ago
JT
Jaanus Tamm
Born 1978 · 47 y · ultimate beneficial owner since 30.10.2018
Ultimate beneficial owner

Subsidiaries

e-Business Register · shareholders · 9 h ago

JT Ventures OÜ is a shareholder or officer in 17 more companies. Grouped into 6 EMTAK sectors.

C · Manufacturing
6
M · Professional, scientific and technical activities
6
K · Financial and insurance activities
2
G · Wholesale and retail trade; repair of motor vehicles and motorcycles
1
J · Information and communication
1
L · Real estate activities
1
›CManufacturing

Annual reports (6)

e-Business Register · annual reports · 5 päeva tagasi
Revenue 2024
1,7m €
↗ +67.5% vs 2023
State taxes 2024
235k €
↘ -5.0% vs 2023
Employees 2024
0
YearRevenueProfitEquity

Taxes, revenue and employees

Estonian Tax and Customs Board · 10.04.2026 as of
1,0m €500k €0

Tech stack

Tehnoloogiad
Mobile carrier
+372 53402633Telia Eesti AS

History

last 2 years · MTA + ÄR + MTR + Procurements
2025
21.09.2025ReportEsitati 2024. aasta aruanne— Käive 1 712 342 €
23.08.2025FilingTrahvihoiatusmäärus: majandusaasta aruanne esitamata— Ä 10094534 / M10 · Olek: Puudused kõrvaldatud
2024
17.12.2024ReportEsitati 2023. aasta aruanne— Käive 1 022 482 €
07.10.2024FilingAruandetrahvimäärus— Ä 10094534 / M9 · Olek: Jõustunud
08.07.2024

Connected companies

Same-person ties · e-Business Register

JT Ventures OÜ is connected to 16 other companies through 1 person who hold a role here and elsewhere. The strongest tie runs through Jaanus Tamm (16 companies).

Total connections
16
via 1 person
Connecting people
1
Active here
Distinct roles
4
Board member · Founder
Strongest tie
Jaanus
16 companies
Via personJaanus Tamm
6 companies
SubsidiaryRoleVia
Atalanta Systems OÜ16884248Founder · Shareholder 65%—
Defsecintel Solutions OÜ14514582Founder · Shareholder 50%—
DSISOperations OÜ16687795Founder · Shareholder 100%—
Lendurai OÜ16918651Shareholder 2%—
OÜ QHS-Power Solutions17147256Founder · Shareholder 100%—
Sirentech Solutions OÜ16952777Founder · Shareholder 75%Defsecintel Solutions OÜ
›MProfessional, scientific and technical activities6 companies
SubsidiaryRole
Defensphere OÜ16145864Shareholder 0%
DSIProjects OÜ12956382Shareholder 100%
Frankenburg Technologies OÜ16901751Shareholder 1%
Hepta Insights OÜ14311560Shareholder 1%
JT Advisors OÜ16895080Founder · Shareholder 100%
Marduk Technologies OÜ14099539Shareholder 14%
›KFinancial and insurance activities2 companies
SubsidiaryRole
CyberNorth Batch-1 OÜ14657844Founder · Shareholder 100%
DSIS Industries OÜ17363578Founder · Shareholder 50%
›GWholesale and retail trade; repair of motor vehicles and motorcycles1 company
SubsidiaryRole
OÜ Steelcore12854606Shareholder 2%
›JInformation and communication1 company
SubsidiaryRole
Sensus Septima OÜ14949989Shareholder 1%
›LReal estate activities1 company
SubsidiaryRole
1SIZEFITSALL OÜ16930913Founder · Shareholder 100%
Assets
Employees
20241 712 342 €461 801 €2,5m €2,5m €021.09.2025
20231 022 482 €1 466 078 €2,4m €2,4m €017.12.2024
2022317 138 €1 235 601 €1,4m €1,6m €026.10.2023
2021127 051 €7147 €189k €340k €020.09.2022
2020234 252 €14 269 €182k €313k €003.11.2021
2019267 847 €13 730 €168k €384k €030.12.2020
Original files in PDF – the full register on e-Business Register.View reports on e-Business Register
20222023202420252026
YearRevenue (a)State taxesTaxes on workforceEmployees (Q4)
2026I Q0 €–––
2025203 000 €56 410 €0 €–
20241 491 404 €235 037 €0 €–
20231 183 589 €247 387 €0 €–
202226 696 €9648 €316 €–
Quarterly breakdown
YearQ1Q2Q3Q4
Revenue 20260 €–––
State taxes 2026––––
Taxes on workforce 2026––––
Employees 2026––––
Revenue 2025203k €0 €0 €0 €
State taxes 202556k €–––
Taxes on workforce 20250 €–––
Employees 2025––––
Revenue 2024285k €284k €719k €203k €
State taxes 202466k €117k €49k €3k €
Taxes on workforce 20240 €0 €0 €0 €
Employees 2024––––
Revenue 2023311k €210k €292k €371k €
State taxes 202362k €43k €62k €80k €
Taxes on workforce 20230 €0 €0 €0 €
Employees 2023––––
Revenue 20226k €0 €0 €20k €
State taxes 20224k €314 €4k €1k €
Taxes on workforce 202268 €0 €248 €0 €
Employees 2022––––
FilingTrahvihoiatusmäärus: majandusaasta aruanne esitamata— Ä 10094534 / M8 · Olek: Jõustunud
16
JT
Jaanus Tamm
board member, founder, shareholder 100%, ultimate beneficial owner
16 other companies›
CompanyRoleReg. code
1SIZEFITSALL OÜ
Ultimate beneficial ownerBoard member
16930913
Atalanta Systems OÜ
Ultimate beneficial ownerBoard member
16884248
CyberNorth Batch-1 OÜ
Board memberUltimate beneficial owner
14657844
Defendec OÜ
Founder
11306995
Defsecintel Solutions OÜ
Board memberUltimate beneficial owner
14514582
DSIProjects OÜ
Board memberUltimate beneficial owner
12956382
DSIS Industries OÜ
Board memberUltimate beneficial owner
17363578
DSISOperations OÜ
Board memberUltimate beneficial owner
16687795
Eesti Kaitse- ja Kosmosetööstuse Liit
Ultimate beneficial owner
80282573
JT Advisors OÜ
Board memberUltimate beneficial owner
16895080
Mittetulundusühing Asutajad
Founder
80305937
MTÜ EuroGuard Alliance
Founder
80641724
MTÜ Organisation for Development, Security and Sustainment
Founder
80587628
OÜ QHS-Power Solutions
Ultimate beneficial ownerBoard member
17147256
Sirentech Solutions OÜ
Ultimate beneficial ownerBoard member
16952777
Smartdust Technologies OÜ
Shareholder 49%Ultimate beneficial ownerFounderBoard member
11676388