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Search›Companies›Integratiivsete süsteemsete lahenduste instituut OÜ
16851544ActivePrivate limited company

Integratiivsete süsteemsete lahenduste instituut OÜ

Harju maakond, Tallinn, Kesklinna linnaosa, Parda tn 8·EMTAK 85599 — Other education n.e.c.·2+ years
Andmed · ···
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Overview

e-Business Register · 5 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
31.10.2023e-Business Register
Address
Parda tn 8, Kesklinna linnaosa, Tallinn, 10151 Harju maakondADS · e-Business Register
E-mail address
zarzitski.sergei@gmail.come-Business Register
Principal activity
EMTAK 85599 - Other education n.e.c.e-Business Register · ETCB
Share capital
0,01 €e-Business Register
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
Revenue 2026
8867 €
▲ 107% vs 2024
As of 10.04.2026 (MTA)
Employees
1
2026 (MTA)
Taxes paid
1183 €
State + labour taxes · 2026 (I kv)
Tax debt
0 €
As of 26.06.2026 (MTA)
Data · 7 sourcese-Business Register · 8 min agoMTA
e-Business Register ↗

Registered 31. oktoober 2023, primary activity: Other education n.e.c.. Main place of business in Kesklinna linnaosa, Tallinn, Harju maakond.

Revenue 2026
9k €
▲ 107% vs 2024
As of 10.04.2026 (MTA)
Employees
1
2026 (MTA)
Taxes paid
1k €
State + labour taxes · 2026 (I kv)
Tax debt
€0
As of 26.06.2026 (MTA)

Officers (2)

e-Business Register · 5 h ago
OK
Olga Knjazeva
Born 1958 · 68 y · board member since 31.10.2023
Board member
SZ
Sergei Zaržitski
Born 1976 · 50 y · board member since 31.10.2023
Board member

Founders

e-Business Register · 5 h ago
SZ
Sergei Zaržitski
Born 1976 · 50 y · founder since 31.10.2023
Founder · 0,01 €

Shareholders

e-Business Register · 5 h ago
SZ
Sergei Zaržitski
Born 1976 · 50 y · shareholder since 31.10.2023
Shareholder 100% · 0,01 €

Beneficial owners

e-Business Register · 5 h ago
SZ
Sergei Zaržitski
Born 1976 · 50 y · ultimate beneficial owner since 31.10.2023
Ultimate beneficial owner

Annual reports (3)

e-Business Register · annual reports · 6 päeva tagasi
Revenue 2025
9k €
↗ +107% vs 2024
Employees 2025
1
YearRevenueProfitEquityAssetsEmployees

Taxes and employees

Estonian Tax and Customs Board · 10.04.2026 as of
YearRevenue (a)State taxesTaxes on workforceEmployees (Q4)
2026—572 €611 €1
2025—595 €622 €1
Quarterly breakdown
YearQ1Q2Q3

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
27.02.2026ReportEsitati 2025. aasta aruanne— Käive 8867 €
2025
19.03.2025ReportEsitati 2023. aasta aruanne— Käive 14 580 €
19.03.2025ReportEsitati 2024. aasta aruanne— Käive 4275 €

Connected companies

Same-person ties · e-Business Register

Integratiivsete süsteemsete lahenduste instituut OÜ is connected to 5 other companies through 2 people who hold a role here and elsewhere. The strongest tie runs through Olga Knjazeva (3 companies).

Total connections
5
via 2 people
Connecting people
2
Active here
Distinct roles
4
Board member · Founder
Strongest tie
Olga
3 companies
Via personOlga Knjazeva
2025
8867 €
101 €
2k €
2k €
1
27.02.2026
20244275 €234 €2k €2k €019.03.2025
202314 580 €1309 €1k €1k €019.03.2025
Original files in PDF – the full register on e-Business Register.View reports on e-Business Register
Q4
Revenue 2026––––
State taxes 2026572 €–––
Taxes on workforce 2026611 €–––
Employees 20261–––
Revenue 2025––––
State taxes 2025148 €221 €117 €109 €
Taxes on workforce 2025154 €231 €123 €114 €
Employees 20251111
3
Sergei Zaržitski2
OK
Olga Knjazeva
board member
3 other companies›
CompanyRoleReg. code
ContactPlus OÜ
FounderShareholder 100%Ultimate beneficial ownerBoard member
11458630
OK Koolituskeskus OÜ
Board memberFounderUltimate beneficial ownerShareholder 51%
12946403
Seam Time OÜ
Board memberFounderShareholder 100%Ultimate beneficial owner
12367450
SZ
Sergei Zaržitski
board member, founder, shareholder 100%, ultimate beneficial owner
2 other companies›
CompanyRoleReg. code
Eesti Professionaalsete Konstellööride Assotsiatsioon MTÜ
Ultimate beneficial ownerBoard member
80550832
OK Koolituskeskus OÜ
Board memberFounder
Ultimate beneficial owner
Shareholder 49%
12946403