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Search›Companies›QuantumOps OÜ
17280647ActivePrivate limited companyEE102957789 · VAT-registered

QuantumOps OÜ

Harju maakond, Tallinn, Kesklinna linnaosa, Laeva tn 2·EMTAK 70101 — Activities of head offices·1+ years
Andmed · ···
On this page
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Overview

e-Business Register · 12 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
11.07.2025e-Business Register
Address
Laeva tn 2, Kesklinna linnaosa, Tallinn, 10111 Harju maakondADS · e-Business Register
E-mail address
info@quantumops.eue-Business Register
Principal activity
EMTAK 70101 - Activities of head officese-Business Register · ETCB
VAT number
ETCB · VAT-registered
Share capital
30,00 €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
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  • Industries
  • Activity licences
  • Recent registrations

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© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Data · 9 sourcese-Business Register · 3 min agoMTAWeb tech scanEesti Internet
e-Business Register ↗

Registered 11. juuli 2025, primary activity: Activities of head offices. Main place of business in Kesklinna linnaosa, Tallinn, Harju maakond.

Revenue 2026 II kv
500 €
As of 10.07.2026 (MTA)
Employees
1
2026 (MTA)
Taxes paid
1852 €
State + labour taxes · 2026 II kv
Tax debt
0 €
As of 09.08.2026 (MTA)
Revenue 2026 (I-II kv)
16k €
As of 10.07.2026 (MTA)
Employees
1
2026 (MTA)
Taxes paid
2k €
State + labour taxes · 2026 (I-II kv)
Tax debt
€0
As of 09.08.2026 (MTA)

Tax debt over time

MTA · last 365 d
Current €0max 2k €
11 May 202625 Jun 202610 Aug 2026
30 days
−1k €
1252,45 € → 0,00 €
90 days
−2k €
1988,45 € → 0,00 €
365 days
–
no data yet

Officers

e-Business Register · 12 h ago
AM
Andres Männart
Born 1967 · 59 y · board member since 11.07.2025
Board member

Founders (2)

e-Business Register · 12 h ago
AM
Andres Männart
Born 1967 · 59 y · founder since 10.07.2025
Founder · 5 €
IK
Ivar Keskpaik
Born 1964 · 61 y · founder since 10.07.2025
Founder · 5 €

Shareholders (3)

e-Business Register · 12 h ago
AM
Andres Männart
Born 1967 · 59 y · shareholder since 10.02.2026
Shareholder 33% · 10 €
TM
Tristan Männart
· shareholder since 19.03.2026
Shareholder 33% · 10 €
SM
Siim Männart
Born 1988 · 37 y · shareholder since 19.03.2026
Shareholder 33% · 10 €

Subsidiaries

e-Business Register · shareholders · 12 h ago
QuantumOps OÜ17280647Shareholder 100%Q-Defence OÜ17508062Shareholder 33%Q-Defensify OÜ17126225Shareholder 33%QuickShield OÜ17182034
QuantumOps OÜ is a shareholder or officer in 3 more companies.

Annual reports (1)

e-Business Register · annual reports · 4 päeva tagasi
YearRevenueProfitEquityAssetsEmployees
20250 €0 €10 €10 €027.06.2026
Original files in PDF – the full register on e-Business Register.View reports on e-Business Register

Taxes, revenue and employees

Estonian Tax and Customs Board · 10.07.2026 as of
YearRevenue (a)State taxesTaxes on workforceEmployees (Q4)
2026I-II Q15 500 €1852 €0 €1
Quarterly breakdown
YearQ1Q2Q3Q4
Revenue 202615k €500 €––
State taxes 2026–2k €––
Taxes on workforce 2026–0 €––
Employees 2026–1––

Tech stack

Website analysis · 3 päeva tagasi
Domains (3)
q-defence.ee
SPFDMARC
REGElkdata OÜ
SRCEIS WHOIS
Detected technologies
Web serverApache
quantumops.ee
SPFDMARC
REGElkdata OÜ
SRCEIS WHOIS
Detected technologies
Web serverApache
quickshield.ee
SPFDMARC
REGElkdata OÜ
SRCEIS WHOIS
Detected technologies
Web serverApache

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
27.06.2026ReportEsitati 2025. aasta aruanne— Käive 0 €
25.06.2026TaxMaksuvõlg kasvas— +580 € (kokku 1252 €)
23.06.2026TaxMaksuvõlg vähenes— −580 € (jäänud 673 €)
17.06.2026TaxMaksuvõlg vähenes— −27 € (jäänud 1252 €)
16.06.2026TaxMaksuvõlg vähenes— −173 € (jäänud 1279 €)
13.06.2026FilingMuutmiskanne2×expand ›hide ⌃
  • Ä 50286895 / 5 · Olek: Jõustunud
  • Kanne nr 5 · kanne
23.05.2026TaxMaksuvõlg kasvas— +173 € (kokku 1452 €)
22.05.2026TaxMaksuvõlg vähenes— −173 € (jäänud 1279 €)
16.05.2026TaxMaksuvõlg vähenes— −200 € (jäänud 1452 €)
14.05.2026TaxMaksuvõlg vähenes— −336 € (jäänud 1652 €)
11.05.2026TaxMaksuvõlg kasvas— +1988 € (kokku 1988 €)
19.03.2026OfficerSai osanikuks2×expand ›hide ⌃
  • Siim Männart · · 33 %
  • Tristan Männart · · 33 %
19.03.2026FilingMuutmiskanne2×expand ›hide ⌃
  • Ä 50286895 / 4 · Olek: Jõustunud
  • Kanne nr 4 · kanne
10.02.2026OfficerSai osanikuks— Andres Männart · · 33 %
10.02.2026FilingMuutmiskanne4×expand ›hide ⌃
  • Ä 50286895 / 2 · Olek: Jõustunud
  • Ä 50286895 / 3 · Olek: Jõustunud
  • Kanne nr 3 · kanne
  • Kanne nr 2 · kanne
2025
11.07.2025OfficerAstus juhatusse— Andres Männart
11.07.2025FilingEsmakanne2×expand ›hide ⌃
  • Ä 50286895 · Olek: Jõustunud
  • Kanne nr 1 · kanne
10.07.2025OfficerAsutas ettevõtte2×expand ›hide ⌃
  • Ivar Keskpaik
  • Andres Männart

Connected companies

Same-person ties · e-Business Register

QuantumOps OÜ is connected to 18 other companies through 3 people who hold a role here and elsewhere. The strongest tie runs through Andres Männart (12 companies).

Total connections
18
via 3 people
Connecting people
3
Active here
Distinct roles
3
Board member · Founder
Strongest tie
Andres
12 companies
Via personAndres Männart12Ivar Keskpaik5Siim Männart1
AM
Andres Männart
board member, founder, shareholder 33%
12 other companies›
CompanyRoleReg. code
Mittetulundusühing Maarja Gild
Board memberFounder
80346563
Mittetulundusühing Maarjamaa Palveränd
Board member
80307391
MTÜ Abruka kabel
Board member
80621779
Q-Defence OÜ
FounderBoard member
17508062
Q-Defensify OÜ
Founder
17126225
Q-Responsify OÜ
Shareholder 33%FounderBoard member
17114133
QuickShield OÜ
FounderBoard member
17182034
Rattanagi OÜ
Shareholder 33%Board member
12360502
Sihtasutus Kolleegium
Supervisory board member
90015324
Steenwerter OÜ
Shareholder 100%FounderBoard member
12451860
Z-Market OÜ
Shareholder 50%FounderBoard member
14980284
Tallinn, Niine tn 13 korteriühistu
Board member
80223955
IK
Ivar Keskpaik
founder
5 other companies›
CompanyRoleReg. code
osaühing Centrum Consulting
FounderBoard member
10565654
Q-Defensify OÜ
Founder
17126225
Q-Responsify OÜ
Shareholder 67%FounderBoard member
17114133
QuickShield OÜ
Founder
17182034
SOLOMON BROKERAGE OÜ
Shareholder 20%Board member
16253938
SM
Siim Männart
shareholder 33%
1 other company›
CompanyRoleReg. code
Stackist OÜ
Shareholder 50%FounderBoard member
16326011

Analysis · 2025

computed from annual reports
Revenue0 €median 49k €0% of the sector median
Equity ratio100.0%

Peer group: Peakontorite tegevus, 100 trading companies that filed a report in the last three years.

Founded 2025. That year 23,223 osaühing were registered; 22,913 are still trading, or 98.7%.