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Search›Companies›SEJUNA OÜ
14355876ActivePrivate limited companyEE102018725 · VAT-registered

SEJUNA OÜ

Harju maakond, Tallinn, Haabersti linnaosa, Järveotsa tee 11-33·EMTAK 43222 — Installation, maintenance and repair of plumbing and sanitary equipment·8+ years
Andmed · ···
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Overview

e-Business Register · 16 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
20.10.2017e-Business Register
Address
Järveotsa tee 11-33, Haabersti linnaosa, Tallinn, 13520 Harju maakondADS · e-Business Register
E-mail address
sejuna72@gmail.come-Business Register
Telephone
+372 51961115· Elisa Eesti ASe-Business Register · TTJA NBA
Principal activity
EMTAK 43222 - Installation, maintenance and repair of plumbing and sanitary equipmente-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

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  • 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 · 7 sourcese-Business Register · 2 min agoMTARiigi Teataja · Riigikohus
e-Business Register ↗

Registered 20. oktoober 2017, primary activity: Installation, maintenance and repair of plumbing and sanitary equipment. Main place of business in Haabersti linnaosa, Tallinn, Harju maakond.

Revenue 2026 II kv
0 €
▼ 17% vs 2022
As of 10.07.2026 (MTA)
Employees
–
2026 (MTA)
Taxes paid
–
Tax debt
0 €
As of 09.08.2026 (MTA)
Revenue 2026 (I-II kv)
0 €
▼ 100% vs 2025 I-II kv
As of 10.07.2026 (MTA)
Employees
–
2026 (MTA)
Taxes paid
–
Tax debt
€0
As of 09.08.2026 (MTA)

Officers

e-Business Register · 16 h ago
SM
Sergii Marchenko
Born 1972 · 53 y · board member since 20.10.2017
Board member

Founders

e-Business Register · 16 h ago
SM
Sergii Marchenko
Born 1972 · 53 y · founder since 19.10.2017
Founder · 3k €

Shareholders

e-Business Register · 16 h ago
SM
Sergii Marchenko
Born 1972 · 53 y · shareholder since 01.09.2023
Shareholder 100% · 3k €

Annual reports (5)

e-Business Register · annual reports · 4 päeva tagasi
Revenue 2023
65k €
↘ -16.6% vs 2022
State taxes 2024
2k €
↘ -68.2% vs 2023
Employees 2023
1
0.0% vs 2022
YearRevenueProfit

Taxes, revenue and employees

Estonian Tax and Customs Board · 10.07.2026 as of
50k €25k €0

Tech stack

Tehnoloogiad
Mobile carrier
+372 51961115Elisa Eesti AS

Court rulings (1 · 1 as claimant)

Riigi Teataja
20241 decision
08.03.20242-22-6942/55
Asjaõigus › Muud asjaõiguse asjadTallinna Ringkonnakohtu tsiviilkolleegiumDecision PDF →On Riigi Teataja →On lahend.ee →
HagejaJõustunud

Connected companies

Same-person ties · e-Business Register

SEJUNA OÜ is connected to 1 other company through 1 person who hold a role here and elsewhere. The strongest tie runs through Sergii Marchenko (1 company).

Total connections
1
via 1 person
Connecting people
1
Active here
Distinct roles
3
Board member · Founder
Strongest tie
Sergii
1 company
Via personSergii Marchenko
Equity
Assets
Employees
202365 177 €203 €6k €26k €125.06.2024
202278 130 €−3189 €6k €27k €126.06.2023
202143 880 €−13 944 €9k €31k €120.07.2022
202082 095 €920 €23k €35k €126.06.2021
201973 863 €18 846 €22k €23k €106.09.2020
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 Q0 €–––
2025700 €–––
20246901 €1553 €781 €1
202382 020 €4889 €3203 €1
202266 883 €4590 €2326 €1
Quarterly breakdown
YearQ1Q2Q3Q4
Revenue 20260 €0 €––
State taxes 2026––––
Taxes on workforce 2026––––
Employees 2026––––
Revenue 2025700 €0 €0 €0 €
State taxes 2025––––
Taxes on workforce 2025––––
Employees 2025––––
Revenue 20246k €971 €0 €0 €
State taxes 2024951 €239 €110 €253 €
Taxes on workforce 2024271 €239 €0 €271 €
Employees 20241111
Revenue 202315k €19k €31k €18k €
State taxes 20232k €1k €770 €1k €
Taxes on workforce 20231k €814 €814 €525 €
Employees 20231111
Revenue 20225k €7k €31k €24k €
State taxes 20222k €558 €1k €773 €
Taxes on workforce 2022351 €401 €787 €787 €
Employees 20222111
1
SM
Sergii Marchenko
board member, founder, shareholder 100%
1 other company›
CompanyRoleReg. code
Marcato Baltic OÜ
Board memberShareholder 50%
11392629

Analysis · 2023

computed from annual reports
Revenue65k €median 43k €1.5× the sector median
Net margin0.3%median 2.3%-2.0 pp vs sector median
Revenue per employee65k €median 47k €1.4× the sector median
Revenue change-16.6%median -0.8%-15.8 pp vs sector median
Equity ratio22.7%
Current ratio0.23current assets cover under 1× liabilities
Labour cost of revenue17.8%
Profit per employee203 €
Compared with2022revenue 78k €

Peer group: Veetorustiku ja sanitaarseadmete paigaldus, 472 trading companies that filed a report in the last three years.

Founded 2017. That year 14,399 osaühing were registered; 13,843 are still trading, or 96.1%.