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
ContactTerms
ET/EN/RU
EN
EestiEnglishРусский
nimistu
Search›Companies›Quantum-Systems OÜ
17316612ActivePrivate limited companyEE102896633 · VAT-registered

Quantum-Systems OÜ

Harju maakond, Tallinn, Kesklinna linnaosa, Tartu mnt 83-206·EMTAK 30321 — Manufacture of military air and spacecraft and related machinery
Andmed · ···
On this page
SanctionsOverviewOfficersShareholdersFoundersBeneficial ownersOther rolesForeign parentSubsidiariesFinancialsTax filingsPledgesPledges as creditorLicencesNoticesTech stackCourt rulingsTVK decisionsBlacklistLabour inspectorateHazardous facilityDPA decisionsTax-deductibleEU lobby registerTrademarksPatentsReal estateVehiclesGrantsProcurementsState paymentsActivityConnected companies
Extension

Right in search

nimistu card above Google, Bing and DuckDuckGo results.

Chrome→Firefox→Edge→
Free · ~14 KB
See the extension →

Overview

e-Business Register · 17 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
01.09.2025e-Business Register
Address
Tartu mnt 83-206, Kesklinna linnaosa, Tallinn, 10115 Harju maakondADS · e-Business Register
E-mail address
dsirgedas@quantum-systems.come-Business Register
Website
quantum-systems.come-Business Register · domain active
Principal activity
EMTAK 30321 - Manufacture of military air and spacecraft and related machinerye-Business Register · ETCB
VAT number
ETCB · VAT-registered
Share capital
10,00 €e-Business Register
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 · 9 sourcese-Business Register · 4 min agoMTABuiltWithWeb tech scanHandelsregister
e-Business Register ↗

Registered 1. september 2025, primary activity: Manufacture of military air and spacecraft and related machinery. Main place of business in Kesklinna linnaosa, Tallinn, Harju maakond.

Revenue 2026 (I kv)
0 €
As of 10.04.2026 (MTA)
Employees
1
2026 (MTA)
Taxes paid
5754 €
State + labour taxes · 2026 (I kv)
Tax debt
0 €
As of 23.06.2026 (MTA)
Revenue 2026 (I kv)
0 €
As of 10.04.2026 (MTA)
Employees
1
2026 (MTA)
Taxes paid
6k €
State + labour taxes · 2026 (I kv)
Tax debt
€0
As of 23.06.2026 (MTA)

Officers

e-Business Register · 17 h ago
DS
Donatas Sirgedas
· board member since 12.06.2026
Board member

Founders

e-Business Register · 17 h ago
QG
Quantum-Systems GmbHSaksamaa · GermanyDE · München HRB 217004
Handelsregister · München HRB 217004 · founder since 25.08.2025
Founder · 10 €

Shareholders

e-Business Register · 17 h ago
QG
Quantum-Systems GmbHSaksamaa · GermanyDE · München HRB 217004
Handelsregister · München HRB 217004 · shareholder since 01.09.2025
Shareholder 100% · 10 €

Beneficial owners (2)

e-Business Register · 17 h ago
SK
Sven KruckSaksamaa · Germany
Born 1982 · 43 y · ultimate beneficial owner since 17.03.2026
Ultimate beneficial owner
FS
Florian SeibelSaksamaa · Germany
Born 1979 · 46 y · ultimate beneficial owner since 25.05.2026
Ultimate beneficial owner

Taxes, revenue and employees

Estonian Tax and Customs Board · 10.04.2026 as of
YearRevenue (a)State taxesTaxes on workforceEmployees (Q4)
2026I Q0 €2815 €2939 €1
2025I-IV Q0 €–––
Quarterly breakdown
YearQ1

Tech stack

BuiltWith · 7 päeva tagasi
Domains (1)
quantum-systems.com
SPFDMARC
MXMicrosoft 365
NSCloudflare
SRCÄriregister
Could not analyse (HTTP 403)
Widgets35JavaScript libraries20Linked services14Hosting13

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
12.06.2026OfficerAstus juhatusse— Donatas Sirgedas
12.06.2026FilingMuutmiskanne3×expand ›hide ⌃
  • Ä 50290806 / M2 · Olek: Puudused kõrvaldatud
  • Ä 50290806 / 3 · Olek: Jõustunud
  • Kanne nr 3 · kanne
06.06.2026NameNimi muutus— Q-Systems OÜ → Quantum-Systems OÜ
Q2
Q3
Q4
Revenue 20260 €–––
State taxes 20263k €–––
Taxes on workforce 20263k €–––
Employees 20261–––
Revenue 2025–––0 €
State taxes 2025––––
Taxes on workforce 2025––––
Employees 2025––––
Email server8
Analytics7
Frameworks6
Content management (CMS)6
Cdns5
SSL certificate4
Mobile technologies4
Ns3
RSS / feeds3
Payment system3
CDN2
Programming language2
Operations2
Web server1
Server1
Web Master1
Ads1
Media1
Robots1
Shop1
Category breakdown
Widgets (35)
Fonts · Graphic Design Tool · UX/UI Design Tool · Content Creation · Feedback Forms and Surveys · Marketing Automation · WordPress Plugins · SEO Management · Mobile · Web Performance Monitoring · Website Performance · Digital Accessibility · Content Management System · Content Modification · Data Display Widgets · Website Builder Plugins · Site Search · Search API · Semantic Search · Content Optimization · Privacy Compliance · Cookie Consent Management · Compliance Software · Website Security · Lead Capture · Caching · Tag Management · Data Management Platform · Digital Experience Optimization · CAPTCHA · Bot Detection · Spam Protection · Fraud Prevention · Page Builder Addons · Data Protection · API Management · Identity and Access Management · Messaging Platform · Internal Communications · Collaborative Workspace · Data Collection · Quiz Builder · Lead Generation · SSO · Cybersecurity · Business Management Software · Page Builder · Website Builder · Low-Code/No-Code Platform · AI · Generative AI · LLM Chatbot · Custom AI Builder · Real-time Communication API · VoIP · Business SMS · Contact Center Software
JavaScript libraries (20)
JavaScript Library · Animation · DOM Manipulation · Event Handling · Ajax Library · UI · UI Component Library · Image Gallery · Framework · Resource Loader · jQuery Plugin · Templating Engine · API Client · Compatibility · Browser Feature Detection · Module Loader · Polyfill · Utility Library · JavaScript Enhancements · Module System · Performance Optimization · State Management · Reactive Programming · Autocomplete · Date Utility · Language Transpiler · Developer Tool · Table Manipulation
Linked services (14)
Page Type · Policy · AI
Hosting (13)
Dedicated Hosting · German hosting · US hosting · Cloud Hosting · Cloud PaaS · Server Location
Email server (8)
Business Email Hosting · Secure Email · Email Signature Management · Email Governance · DMARC
Analytics (7)
Application Performance · Audience Measurement · Visitor Count Tracking · Site Optimization · Conversion Optimization · A/B Testing · Advertiser Tracking · Personalization · Mobile · Tag Management · Conversion Tracking · CRM · Marketing Automation · Lead Generation · Inbound Marketing · Sales Enablement · Content Marketing · Email Marketing · Web Analytics · User Behavior Analytics · Threat Protection · Network Security · Cybersecurity Intelligence · Web Security · Bot Management
Frameworks (6)
WordPress Theme · Schema
Content management (CMS) (6)
Blog · eCommerce Enabled · Hosted Solution · Simple Website Builder · Open Source · Community CMS · Enterprise · Internal Tools Platform · Knowledge Management · Intranet Solutions · Ticketing System · Project Management · Collaboration Software · Document Management · Developer Tools · Workflow Automation · Wiki · Mobile · Customer Support Software · Documentation Platform · IT Service Management · Knowledge Base Software · Product Management · Service Management · Technical Documentation · Non Profit
Cdns (5)
Edge Delivery Network
SSL certificate (4)
Root Authority
Mobile technologies (4)
–
Ns (3)
–
RSS / feeds (3)
–
Payment system (3)
Currency · Payment Acceptance · Payments Processor
CDN (2)
–
Programming language (2)
–
Operations (2)
Infrastructure · Orchestration · Operating System
Web server (1)
–
Server (1)
–
Web Master (1)
–
Ads (1)
Ad Server · Ad Network · Ad Analytics · Demand-side Platform · Ad Exchange
Media (1)
Online Video Platform · Video Players
Robots (1)
–
Shop (1)
Enterprise · Hosted Solution · Multi-Channel · API First Commerce · B2B eCommerce · Composable Commerce · Digital Experience Platform · Direct-to-Consumer eCommerce · ERP eCommerce · Headless Commerce · Omnichannel Commerce · Order Management System
04.06.2026
FilingMuutmiskanne2×expand ›hide ⌃
  • Ä 50290806 / 2 · Olek: Jõustunud
  • Kanne nr 2 · kanne
25.05.2026OfficerLisati tegelikuks kasusaajaks— Florian Seibel
27.04.2026FilingMuutmiskanne— Ä 50290806 / M1 · Olek: Puudused kõrvaldatud
17.03.2026OfficerLisati tegelikuks kasusaajaks— Sven Kruck
2025
01.09.2025OfficerSai osanikuks— Quantum-Systems GmbH · 100 %
01.09.2025FilingEsmakanne2×expand ›hide ⌃
  • Ä 50290806 · Olek: Jõustunud
  • Kanne nr 1 · kanne
25.08.2025OfficerAsutas ettevõtte— Quantum-Systems GmbH