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Search›Companies›DataSec OÜ
11428652ActivePrivate limited companyEE101178653 · VAT-registered

DataSec OÜ

Harju maakond, Tallinn, Kristiine linnaosa, A. H. Tammsaare tee 47·EMTAK 62901 — Other information technology and computer service activities·18+ 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 · 10 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
28.09.2007e-Business Register
Address
A. H. Tammsaare tee 47, Kristiine linnaosa, Tallinn, 11316 Harju maakondADS · e-Business Register
E-mail address
info@datasec.eee-Business Register
Website
www.datasec.eee-Business Register · domain active
Telephone
+372 5111887· 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
254900Z52T7SH4DX4Q23 · lapsed · issued 08.04.2021 · renewal overdue 444dGLEIF
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 · 12 sourcese-Business Register · 7 min agoMTARTKBuiltWithWeb tech scanEesti InternetGLEIF
e-Business Register ↗

Registered 28. september 2007, primary activity: Other information technology and computer service activities. Main place of business in Kristiine linnaosa, Tallinn, Harju maakond.

Revenue 2026 (I kv)
16 748 €
▲ 1026% vs 2025 I kv
As of 10.04.2026 (MTA)
Employees
–
2026 (MTA)
Taxes paid
2028 €
State + labour taxes · 2026 (I kv)
Tax debt
0 €
As of 25.06.2026 (MTA)
Revenue 2026 (I kv)
17k €
▲ 1026% vs 2025 I kv
As of 10.04.2026 (MTA)
Employees
–
2026 (MTA)
Taxes paid
2k €
State + labour taxes · 2026 (I kv)
Tax debt
€0
As of 25.06.2026 (MTA)

Officers (2)

e-Business Register · 10 h ago
RK
Risto Kiilberg
Born 1977 · 48 y · board member since 28.09.2007
Board member
KK
Kätlin Kiilberg
Born 1976 · 50 y · board member since 20.09.2017
Board member

Founders (2)

e-Business Register · 10 h ago
AH
Argo Hussar
Born 1981 · 45 y · founder since 28.09.2007
Founder
RK
Risto Kiilberg
Born 1977 · 48 y · founder since 28.09.2007
Founder

Shareholders

e-Business Register · 10 h ago
RK
Risto Kiilberg
Born 1977 · 48 y · shareholder since 01.09.2023
Shareholder 100% · 3k €

Beneficial owners (2)

e-Business Register · 10 h ago
KK
Kätlin Kiilberg
Born 1976 · 50 y · ultimate beneficial owner since 19.10.2018
Ultimate beneficial owner
RK
Risto Kiilberg
Born 1977 · 48 y · ultimate beneficial owner since 19.10.2018
Ultimate beneficial owner

Subsidiaries

e-Business Register · shareholders · 10 h ago

DataSec OÜ is a shareholder or officer in 1 more company.

DataFox OÜ
Shareholder 25%

Annual reports (7)

e-Business Register · annual reports · 5 päeva tagasi
Revenue 2025
17k €
↗ +73.6% vs 2024
Employees 2025
0
YearRevenueProfitEquityAssetsEmployees

Taxes, revenue and employees

Estonian Tax and Customs Board · 10.04.2026 as of
100k €50k €0

Tech stack

Website analysis · 4 päeva tagasi
Domains (2)
www.datasec.ee
SRCÄriregister
datasec.ee
SPFDMARC
MXGoogle Workspace
NSZone.ee
REGZone Media OÜ
SRCEIS WHOIS

State-sector payments (5 · 17k €)

RTK Makseandmik · 15.05.2026
Transactions
5
2024–2025 · 2 years
Total amount
17k €
avg 3k €
Buyers
3
State and municipal bodies
Latest
16.12.2025
3k € · AS Lõuna-Eesti Haigla

2025: 12k € · 2024: 5k €

BuyerTxAmountShare
AS Lõuna-Eesti Haigla
10833853
2

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
09.01.2026ReportEsitati 2025. aasta aruanne— Käive 16 525 €
2025
10.01.2025ReportEsitati 2024. aasta aruanne— Käive 9517 €

Connected companies

Same-person ties · e-Business Register

DataSec OÜ is connected to 6 other companies through 2 people who hold a role here and elsewhere. The strongest tie runs through Risto Kiilberg (3 companies).

Total connections
6
via 2 people
Connecting people
2
Active here
Distinct roles
4
Board member · Founder
Strongest tie
Risto
3 companies
Via personRisto Kiilberg
202516 525 €83 256 €64k €66k €009.01.2026
20249517 €52 914 €53k €53k €010.01.2025
202318 981 €51 393 €32k €33k €009.01.2024
202269 422 €31 873 €30k €30k €011.01.2023
202121 712 €7470 €14k €31k €122.02.2022
202072 548 €415 €42k €70k €128.01.2021
201973 988 €791 €41k €57k €118.05.2020
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 Q16 748 €2028 €0 €–
202516 000 €1997 €704 €–
202417 087 €4411 €2709 €–
202334 937 €3728 €1505 €–
2022120 635 €10 984 €0 €1
Quarterly breakdown
YearQ1Q2Q3Q4
Revenue 202617k €–––
State taxes 20262k €–––
Taxes on workforce 20260 €–––
Employees 2026––––
Revenue 20251k €0 €11k €4k €
State taxes 2025203 €–1k €501 €
Taxes on workforce 2025203 €–0 €501 €
Employees 2025––––
Revenue 20246k €0 €2k €8k €
State taxes 20242k €1k €213 €1k €
Taxes on workforce 2024903 €1k €0 €677 €
Employees 2024––––
Revenue 202322k €0 €7k €6k €
State taxes 20232k €–2k €207 €
Taxes on workforce 20230 €–2k €0 €
Employees 2023––––
Revenue 202270k €5k €8k €38k €
State taxes 20227k €–208 €4k €
Taxes on workforce 20220 €–0 €0 €
Employees 20221111
Detected technologies
Content management (CMS)WordPress
JavaScript libraryjQuery
Web serverApache
UI frameworkTailwind CSS
Mobile carrier
+372 5111887Telia Eesti AS
7k €
Eesti Rahvusringhääling
74002322
1
6k €
SA Keskkonnainvesteeringute Keskus
90005946
2
3k €
20253 transactions · 12k €
16.122025
AS Lõuna-Eesti Haigla10833853
MAJANDAMISKULUD · Üldhaigla teenused
3420 €
26.092025
SA Keskkonnainvesteeringute Keskus90005946
MAJANDAMISKULUD · Muu keskkonnakaitse (sh keskkonnakaitse haldus)
1971 €
21.072025
Eesti Rahvusringhääling74002322
MAJANDAMISKULUD · Ringhäälingu- ja kirjastamisteenused
6477 €
20242 transactions · 5k €
27.082024
SA Keskkonnainvesteeringute Keskus90005946
MAJANDAMISKULUD · Muu keskkonnakaitse (sh keskkonnakaitse haldus)
1397 €
23.012024
AS Lõuna-Eesti Haigla10833853
MAJANDAMISKULUD · Üldhaigla teenused
3470 €
3
Argo Hussar3
RK
Risto Kiilberg
board member, founder, shareholder 100%, ultimate beneficial owner
3 other companies›
CompanyRoleReg. code
DataFox OÜ
FounderBoard memberUltimate beneficial owner
12519049
Datafox Software Engineering OÜ
Board member
14677657
Greenfox OÜ
Board memberUltimate beneficial owner
11041580
AH
Argo Hussar
founder
3 other companies›
CompanyRoleReg. code
Altacom Group OÜ
FounderUltimate beneficial ownerShareholder 32%Board member
12490245
Altacom OÜ
Founder
Ultimate beneficial owner
Board member
12479930
OÜ Hussar
Ultimate beneficial ownerShareholder 100%Board member
11437545