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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 · ···
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SanctionsOverviewOfficersShareholdersFoundersOther rolesForeign parentSubsidiariesFinancialsTax filingsPledgesPledges as creditorLicencesNoticesTech stackCourt rulingsTVK decisionsBlacklistLabour inspectorateHazardous facilityDPA decisionsTax-deductibleEU lobby registerTrademarksPatentsReal estateVehiclesGrantsProcurementsDocumentsState paymentsActivityConnected companies
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Overview

e-Business Register · 17 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 490dGLEIF
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
  • Activity licences
  • Recent registrations

Data

  • 79 sources
  • Database
  • Extensions
  • MCP

Organisation

  • About
  • FAQ
  • For journalists
  • Donate
  • Donation terms
  • Refunds
  • Terms
  • Privacy
  • Contact
© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Data · 11 sourcese-Business Register · 1 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 II kv
23 243 €
▲ 74% vs 2024
As of 10.07.2026 (MTA)
Employees
–
2026 (MTA)
Taxes paid
2842 €
State + labour taxes · 2026 II kv
Tax debt
0 €
As of 09.08.2026 (MTA)
Revenue 2026 (I-II kv)
40k €
▲ 2589% vs 2025 I-II kv
As of 10.07.2026 (MTA)
Employees
–
2026 (MTA)
Taxes paid
5k €
State + labour taxes · 2026 (I-II kv)
Tax debt
€0
As of 09.08.2026 (MTA)

Officers (2)

e-Business Register · 17 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 · 17 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 · 17 h ago
RK
Risto Kiilberg
Born 1977 · 48 y · shareholder since 01.09.2023
Shareholder 100% · 3k €

Subsidiaries

e-Business Register · shareholders · 17 h ago
DataSec OÜ11428652Shareholder 25%DataFox OÜ12519049Shareholder 25%Greenfox Holding OÜ17539884
DataSec OÜ is a shareholder or officer in 2 more companies.

Annual reports (7)

e-Business Register · annual reports · 4 päeva tagasi
Revenue 2025
17k €
↗ +73.6% vs 2024
Employees 2025
0
YearRevenueProfitEquityAssetsEmployees

Taxes, revenue and employees

Estonian Tax and Customs Board · 10.07.2026 as of
100k €50k €0

Tech stack

Website analysis · 2 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 7 other companies through 2 people who hold a role here and elsewhere. The strongest tie runs through Risto Kiilberg (4 companies).

Total connections
7
via 2 people
Connecting people
2
Active here
Distinct roles
3
Board member · Founder
Strongest tie
Risto
4 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-II Q39 991 €4870 €0 €–
202516 000 €1997 €704 €–
202417 087 €4411 €2709 €–
202334 937 €3728 €1505 €–
2022120 635 €10 984 €0 €1
Quarterly breakdown
YearQ1Q2Q3Q4
Revenue 202617k €23k €––
State taxes 20262k €3k €––
Taxes on workforce 20260 €0 €––
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 €
4
Argo Hussar3
RK
Risto Kiilberg
board member, founder, shareholder 100%
4 other companies›
CompanyRoleReg. code
DataFox OÜ
Board memberFounder
12519049
Datafox Software Engineering OÜ
Board member
14677657
Greenfox Holding OÜ
Board member
17539884
Greenfox OÜ
Board member
11041580
AH
Argo Hussar
founder
3 other companies›
CompanyRoleReg. code
Altacom Group OÜ
Board memberShareholder 32%Founder
12490245
Altacom OÜ
Board memberFounder
12479930
OÜ Hussar
Board memberShareholder 100%
11437545

Analysis · 2025

computed from annual reports
Revenue17k €median 29k €57% of the sector median
Net margin503.8%median 11.5%+492.3 pp vs sector median
Revenue change73.6%median 2.5%+71.2 pp vs sector median
Equity ratio96.7%
Current ratio28.79
Labour cost of revenue0.0%
Compared with2024revenue 10k €

Peer group: Muud infotehnoloogia- ja arvutialased tegevused, 1,853 trading companies that filed a report in the last three years.

Founded 2007. That year 5,023 osaühing were registered; 4,874 are still trading, or 97.0%.