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Search›Companies›Tech Castle OÜ
14050527ActivePrivate limited companyEE102380505 · VAT-registered

Tech Castle OÜ

Harju maakond, Tallinn, Kesklinna linnaosa, Vesivärava tn 50-301·EMTAK 63101 — Computing infrastructure, data hosting and related activities·10+ years
Andmed · ···
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Overview

e-Business Register · 6 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
16.05.2016e-Business Register
Address
Vesivärava tn 50-301, Kesklinna linnaosa, Tallinn, 10152 Harju maakondADS · e-Business Register
E-mail address
ops@techcastle.coe-Business Register
Telephone
+372 1900315e-Business Register
Principal activity
EMTAK 63101 - Computing infrastructure, data hosting and related activitiese-Business Register · ETCB
VAT number
ETCB · VAT-registered
Share capital
2500,00 €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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  • Activity licences
  • Recent registrations

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© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Data · 6 sourcese-Business Register · 2 min agoMTA
e-Business Register ↗

Registered 16. mai 2016, primary activity: Computing infrastructure, data hosting and related activities. Main place of business in Kesklinna linnaosa, Tallinn, Harju maakond.

Revenue 2026 II kv
272 849 €
▼ 16% vs 2025 II kv
As of 10.07.2026 (MTA)
Employees
1
2026 (MTA)
Taxes paid
1191 €
State + labour taxes · 2026 II kv
Tax debt
0 €
As of 09.08.2026 (MTA)
Revenue 2026 (I-II kv)
587k €
▲ 23% vs 2025 I-II kv
As of 10.07.2026 (MTA)
Employees
1
2026 (MTA)
Taxes paid
3k €
State + labour taxes · 2026 (I-II kv)
Tax debt
€0
As of 09.08.2026 (MTA)

Officers

e-Business Register · 6 h ago
PS
Petr Sergeev
· board member since 30.06.2026
Board member

Founders

e-Business Register · 6 h ago
PS
Pavel Sokolov
Born 1986 · 39 y · founder since 16.05.2016
Founder · 3k €

Shareholders

e-Business Register · 6 h ago
PS
Petr Sergeev
· shareholder since 30.06.2026
Shareholder 100% · 3k €

Annual reports (7)

e-Business Register · annual reports · 4 päeva tagasi
Revenue 2025
601k €
↗ +15.6% vs 2024
State taxes 2025
9k €
↘ -58.0% vs 2024
Employees 2025
0
YearRevenueProfitEquity

Taxes, revenue and employees

Estonian Tax and Customs Board · 10.07.2026 as of
500k €250k €0

Tech stack

Tehnoloogiad
Mobile carrier
+372 1900315Unknown

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
04.08.2026FilingMuutmiskanne2×expand ›hide ⌃
  • Ä 50030269 / 20 · Olek: Jõustunud
  • Kanne nr 19 · kanne
30.06.2026OfficerSai osanikuks— Petr Sergeev · · 100 %
30.06.2026OfficerAstus juhatusse— Petr Sergeev

Connected companies

Same-person ties · e-Business Register

Tech Castle OÜ is connected to 17 other companies through 2 people who hold a role here and elsewhere. The strongest tie runs through Pavel Sokolov (16 companies).

Total connections
17
via 2 people
Connecting people
2
Active here
Distinct roles
3
Board member · Shareholder
Strongest tie
Pavel
16 companies
Via personPavel Sokolov
Assets
Employees
2025600 890 €52 258 €258k €276k €029.06.2026
2024519 731 €−29 931 €209k €241k €029.06.2025
2023467 475 €128 664 €238k €242k €028.06.2024
2022135 698 €107 295 €110k €119k €030.06.2023
20210 €0 €3k €3k €029.06.2022
20200 €−374 €3k €3k €030.06.2021
20190 €−779 €3k €3k €017.03.2020
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 Q587 256 €3080 €0 €1
2025928 595 €9311 €0 €1
2024999 804 €22 189 €0 €1
2023807 669 €5368 €0 €1
2022137 040 €838 €0 €1
Quarterly breakdown
YearQ1Q2Q3Q4
Revenue 2026314k €273k €––
State taxes 20262k €1k €––
Taxes on workforce 20260 €0 €––
Employees 202611––
Revenue 2025155k €324k €228k €222k €
State taxes 20253k €2k €3k €2k €
Taxes on workforce 20250 €0 €0 €0 €
Employees 20251111
Revenue 2024199k €178k €312k €311k €
State taxes 20245k €5k €8k €4k €
Taxes on workforce 20240 €0 €0 €0 €
Employees 20241111
Revenue 2023158k €197k €257k €195k €
State taxes 2023183 €1k €1k €3k €
Taxes on workforce 20230 €0 €0 €0 €
Employees 20231111
Revenue 20221k €32k €44k €60k €
State taxes 2022––283 €555 €
Taxes on workforce 2022––0 €0 €
Employees 20221111
30.06.2026
FilingMuutmiskanne2×expand ›hide ⌃
  • Ä 50030269 / 19 · Olek: Jõustunud
  • Kanne nr 18 · kanne
29.06.2026ReportEsitati 2025. aasta aruanne— Käive 600 890 €
2025
22.12.2025FilingMuutmiskanne2×expand ›hide ⌃
  • Ä 50030269 / 18 · Olek: Jõustunud
  • Kanne nr 17 · kanne
29.06.2025ReportEsitati 2024. aasta aruanne— Käive 519 731 €
16
Petr Sergeev1
PS
Pavel Sokolov
founder
16 other companies›
CompanyRoleReg. code
AI Bootstrapper OÜ
Board memberShareholder 100%Founder
16938576
AIMLAPI OÜ
Board memberShareholder 100%Founder
16931798
AtomicMail Systems OÜ
Board memberShareholder 100%Founder
17051295
Bitsgap Holding OÜ
Shareholder 17%
14004763
Challenge Way OÜ
Shareholder 100%
12471905
Coffee Kitchen OÜ
Shareholder 100%Founder
17529561
Gaufres belges OÜ
Board memberShareholder 100%Founder
16383026
Pandaverse OÜ
Shareholder 100%FounderBoard member
16819268
Rannik Tree OÜ
Shareholder 100%FounderBoard member
16890852
SigmaBrowser OÜ
Shareholder 100%FounderBoard member
16998294
Silver Tree Capital OÜ
Shareholder 100%FounderBoard member
16366980
SpaceshipIntelligence OÜ
Shareholder 100%FounderBoard member
17121541
StarCheck OÜ
Shareholder 100%FounderBoard member
16856447
SuperChatCompany OÜ
Shareholder 100%FounderBoard member
16931835
Turbopush OÜ
Shareholder 100%FounderBoard member
16931864
WhalesHeaven OÜ
Shareholder 5%Founder
14841588
PS
Petr Sergeev
board member, shareholder 100%
1 other company›
CompanyRoleReg. code
Guardarian OÜ
Board member
14320990

Analysis · 2025

computed from annual reports
Revenue601k €median 33k €18.0× the sector median
Net margin8.7%median 9.0%-0.3 pp vs sector median
Revenue change15.6%median -0.5%+16.1 pp vs sector median
Equity ratio93.6%
Current ratio11.14
Compared with2024revenue 520k €

Peer group: Andmetöötlustaristu, andmemajutus jms tegevus, 259 trading companies that filed a report in the last three years.

Founded 2016. That year 12,438 osaühing were registered; 11,952 are still trading, or 96.1%.