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SERDNA & Ko OÜ

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RegisteredHarju County
Registry code
10429263
VAT number
EE100433030
Address
Harju maakond, Tallinn, Kesklinna linnaosa, Uus tn 20a-6, 10111
Registered
17.04.1998 · 28 yrs
Activity
Rental and operating of own or leased real estate 68201
Additional activities
Growing of cereals (except rice), leguminous crops and oil seeds, Enda kinnisvara ost ja müük, Support activities for crop production
Capital
2 500 €
Email
s•••@g•••.comLog in to see
Business Register 06.10.2026
Sales revenue179 k €+63%2025 annual report
Profit74 913 €2025 annual report
Employees1Tax Board 2026 Q2
Average gross salary1 678 €estimate, Tax Board 2026 Q2
Labour taxes per quarter2 567 €Tax Board 2026 Q2
Cash183 k €Cash 31.12.2025, annual report
Tax debt0 €Tax Board debtor list 06.10.2026
Revenue 12 months342 k €+79%Tax Board, last 4 quarters
State taxes 12 months72 761 €Tax Board, last 4 quarters
Tax debt since 26.09.2026 · ✓ no debt
Details ↓
Turnover by quarter · latest 56 998 €
18 k44 k49 k80 k189 k34 k62 k57 k
III 24IV 24I 25II 25III 25IV 25I 26II 26
Chart ↓
Firmo rating
AA
Very good, low risk
87 / 100 points
CBBBBBBAAAAAA
View credit reportReport a debtHow the rating is calculatedCalculated 06.10.2026 · open data
Quick check
  • No tax debt
  • No enforcement proceedings (12 months)
  • No payment orders (12 months)
  • No bankruptcy or liquidation
  • No sanctions
  • Report filed (2025)
  • VAT registered
Stability
RatingAA → AAA → AA
In tax debt0 days since 26.09.2026
Revenue 12 months▲ 79% vs a year earlier
Email right away on tax debt, bankruptcy or board change
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Data

Board and owners

2 persons
Number of active companies, tax debt and bankruptcy. Facts, not an assessment.
Board 1
Andres Oopkaup3 companiesno tax debtPersonal ID ↗24.05.2021
Other persons 1
Andres Oopkaup3 companiesno tax debtProcuratorPersonal ID ↗19.11.2003
Shareholders 1
Andres Oopkaup100,0% 2 500 €01.09.2023
Beneficial owners 1
Andres Oopkaup3 companiesno tax debtdirect holding30.09.2018

Business Register open data

Quarterly taxes and revenue

2026 Q2
State taxes / revenue26,9%
Labour taxes / revenue4,5%
Revenue per employee per month18 999 €
Gross salary (estimate)1 678 €
Net salary (estimate)1 416 €

2026 Q2. Wage is estimated from employment taxes.

Build report

QuarterRevenueChange y/yLabour taxesState taxesEmployees
2026 Q256 998 €▼ 29%2 567 €15 353 €1
2026 Q161 856 €▲ 27%8 536 €0 €1
2025 Q433 980 €▼ 22%2 567 €10 547 €1
2025 Q3188 683 €▲ 969%2 567 €46 861 €1
2025 Q280 456 €3 123 €3 260 €1
2025 Q148 640 €▲ 18%7 022 €74 582 €1
2024 Q443 676 €▼ 61%2 479 €12 724 €1
2024 Q317 649 €▼ 87%2 479 €4 665 €1
2024 Q20 €2 479 €4 617 €1
2024 Q141 200 €▼ 73%7 904 €7 966 €1
2023 Q4113 130 €▼ 30%4 104 €28 404 €1
2023 Q3138 470 €▲ 79%2 479 €2 541 €1
Show full history (18 quarters)
2023 Q2150 €▼ 100%2 541 €2 546 €1
2023 Q1151 306 €▲ 155%4 791 €0 €1
2022 Q4162 736 €0 €13 291 €—
2022 Q377 207 €0 €84 €—
2022 Q274 260 €0 €84 €—
2022 Q159 288 €4 289 €10 790 €—

Tax and Customs Board, published on the 10th of the month following the quarter. State taxes include employment taxes. CC BY-SA 3.0

Annual reports

5 yr
Build report

20252024202320222021
Sales revenue179 k €▲ 63%110 k €▼ 46%203 k €▼ 57%470 k €▲ 230%142 k €
Profit74 913 €▲ 135%31 840 €▲ 19×1 688 €▼ 100%404 k €▲ 150%162 k €
Profit margin41,7%29,0%0,8%86,0%113,4%
Retained earnings1,2 m €▲ 3%1,2 m €▼ 17%1,4 m €▲ 39%1,0 m €▲ 18%882 k €
Cash183 k €▲ 204%60 274 €▲ 209%19 525 €▼ 78%90 537 €▼ 33%135 k €
Current assets314 k €▲ 175%114 k €▼ 74%431 k €▲ 118%198 k €▲ 29%153 k €
Fixed assets1,5 m €▲ 11%1,4 m €▲ 6%1,3 m €▼ 14%1,5 m €▲ 30%1,1 m €
Assets1,8 m €▲ 24%1,5 m €▼ 14%1,7 m €▲ 1%1,7 m €▲ 30%1,3 m €
Current liabilities291 k €▲ 107%141 k €▲ 81%77 879 €▲ 5%73 904 €▼ 9%81 332 €
Long-term liabilities222 k €▲ 140%92 411 €▼ 48%177 k €▲ 8%164 k €▼ 3%169 k €
Total liabilities513 k €▲ 120%233 k €▼ 8%254 k €▲ 7%238 k €▼ 5%250 k €
Equity1,3 m €▲ 6%1,2 m €▼ 15%1,5 m €0%1,5 m €▲ 39%1,0 m €
Labour costs24 084 €0%24 084 €0%24 084 €0 €0 €
Employees10%10%100
Filed28.06.202630.06.202529.06.202430.06.202326.06.2022
ReportPDF ↓PDF ↓PDF ↓PDF ↓PDF ↓

▲ growth, ▼ decline compared to the previous year (growth in liabilities is red). Business Register, annual reports. CC BY 4.0

Revenue by activity

2025
ActivityEMTAKSales revenueOsa
Rental and operating of own or leased real estate main activity68201102 837 €57%
Growing of cereals (except rice), leguminous crops and oil seeds0111149 647 €28%
Enda kinnisvara ost ja müük6811122 640 €13%
Support activities for crop production016114 309 €2%

2025 annual report, RIK open data

Real estate

e-kinnistusraamat

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Source: e-kinnistusraamat (Centre of Registers and Information Systems), basic data

Debts and court cases

clean
No tax debt · Tax Board 06.10.2026

Tax Board debtor list (daily), Official Announcements, State Gazette. The Tax Board publishes only today's list; earlier history is collected by Firmo.

Enforcement, payment orders and notices

clean

Official Announcements contain no enforcement, payment order or tax authority notices about the company.

Official Announcements (CC BY-SA 4.0). Enforcement proceedings, payment orders or tax decisions are published there only if they cannot be delivered to the company otherwise. The enforcement register is not public, so the absence of a notice does not mean there are no claims.

State: transactions, tenders, grants

219 tuh € makseid

Transactions with state institutions

2026288 €
2025116 k €
202482 973 €
202319 284 €

Largest payers

Põllumajanduse Registrite ja Informatsiooni Amet218 599 €
All payments by month
MonthPayerTypeFieldAmount
01.2026Põllumajanduse Registrite ja Informatsiooni AmetMuud toetusedPõllumajandus288 €
12.2025Põllumajanduse Registrite ja Informatsiooni AmetMuud toetusedPõllumajandus14 646 €
08.2025Põllumajanduse Registrite ja Informatsiooni AmetMuud toetusedPõllumajandus92 504 €
06.2025Põllumajanduse Registrite ja Informatsiooni AmetMuud toetusedPõllumajandus8 616 €
01.2025Põllumajanduse Registrite ja Informatsiooni AmetMuud toetusedPõllumajandus289 €
12.2024Põllumajanduse Registrite ja Informatsiooni AmetMuud toetusedPõllumajandus14 428 €
06.2024Põllumajanduse Registrite ja Informatsiooni AmetMuud toetusedPõllumajandus68 088 €
03.2024Põllumajanduse Registrite ja Informatsiooni AmetMuud toetusedPõllumajandus457 €
12.2023Põllumajanduse Registrite ja Informatsiooni AmetMuud toetusedPõllumajandus18 946 €
02.2023Põllumajanduse Registrite ja Informatsiooni AmetMuud toetusedPõllumajandus338 €

Riigi Tugiteenuste Keskus, Saldo makseandmikud

Holdings in other companies

1
CompanyCodeHoldingSinceRevenue
Taaveti OÜ1677078651,0%02.09.20230 €

Business Register

Companies linked via the board

2
Osaühing CrocusAndres Oopkaup571 k €AATaaveti OÜAndres Oopkaup0 €BB

Sorted by revenue (latest report or 4 quarters).

Top 20 in activity: Rental and operating of own or leased real estate

20
#CompanyRevenue
1Riigi Kinnisvara Aktsiaselts177,2 m €
2Kirkcong Property OÜ27,8 m €
3Ülemiste Center OÜ26,2 m €
4BLRT Grupp AS20,7 m €
5TÜC Majad AS20,2 m €
6ROCCA al MARE KAUBANDUSKESKUSE AKTSIASELTS19,6 m €
7Öpiku Majad OÜ17,9 m €
8AS Viru Keskus17,1 m €
9TKM Kinnisvara AS17,0 m €
10Kinnisvaravalduse AS16,8 m €
11Sihtasutus Ida-Viru Investeeringute Agentuur14,2 m €
12Kaarsilla Kinnisvara OÜ13,4 m €
13Lõunakeskus OÜ13,4 m €
14OÜ Raadiku Arendus12,8 m €
15EfTEN Kristiine OÜ12,6 m €
16Neutra Capital AS10,7 m €
17AS Harju Elekter Group10,5 m €
18aktsiaselts AQUA MARINA10,5 m €
19Arter Kinnisvara OÜ10,4 m €
20TTK Kultuurikeskus OÜ10,3 m €

SERDNA & Ko OÜ: place 1623 /12559

Similar size: Tehnopargi5 OÜ, OÜ EAÕK Varahaldus, OÜ Wronten, Metrohouse OÜ, Saue Ärimaja OÜ, Doneport Eesti OÜ, OÜ Toomkooli Invest, Cash Flow Investment OÜ, OÜ Lennuradari tee 12, Brilliant Fund Investment OÜ

Revenue from the latest annual report, otherwise Tax Board revenue for 4 quarters. All companies in this activity

Licences, pledges, domains

No data

History and notices

20
DateTypeContent
07.01.2026EntryAmendment entry
01.09.2023EntryAmendment entry
24.05.2021EntryAmendment entry
25.05.2018EntryAmendment entry
17.01.2018EntryAmendment entry
16.05.2016EntryAmendment entry
30.12.2015Negative entry order: deficiencies not remediedAmendment entry
15.12.2015Order to remedy deficienciesAmendment entry
09.08.2011EntryÜmberkujundamiskanne uut registrikaarti avamata
14.07.2011Order to remedy deficienciesÜmberkujundamiskanne uut registrikaarti avamata
03.12.2008Tegevusalade kustutamine registrikaardiltAmendment entry
27.05.2005Jaatav kandeotsusAmendment entry
19.11.2003Jaatav kandeotsusAmendment entry
17.11.2003Jaatav kandeotsusAmendment entry
22.08.2003Kandeotsus ex officioMärkus
20.06.2003Jaatav kandeotsusAmendment entry
13.05.2003Kättetoimetatav puuduste kõrvaldamise määrusAmendment entry
03.06.2002Jaatav kandeotsusMitteavaldatav muutmiskanne
17.05.2002Kättetoimetatav puuduste kõrvaldamise määrusMitteavaldatav muutmiskanne
26.03.2002Kättetoimetatav puuduste kõrvaldamise määrusMitteavaldatav muutmiskanne