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Siena Holding OÜ

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RegisteredHarju County
Registry code
12658992
VAT number
not VAT registered
Address
Harju maakond, Tallinn, Kesklinna linnaosa, Tartu mnt 2, 10145
Registered
09.05.2014 · 12 yrs
Activity
Activities of holding companies 64201
Capital
3 000 €
Email
h•••@s•••.eeLog in to see
Phone
+372 •• ••••Log in to see
Business Register 05.10.2026
Tegevuseta: käive ja töötajad puuduvad
Profit99 956 €2025 annual report
Labour taxes per quarter0 €Tax Board 2026 Q1
Cash6 563 €Cash 31.12.2025, annual report
Tax debt0 €Tax Board debtor list 05.10.2026
State taxes 12 months3 938 €Tax Board, last 4 quarters
Tax debt since 26.09.2026 · ✓ no debt
Details ↓
Firmo rating
BBB
Rahuldav, keskmine risk
57 / 100 points
CBBBBBBAAAAAA
View credit reportReport a debtHow the rating is calculatedCalculated 05.10.2026 · 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)
  • Not VAT registered
Stability
RatingBBB → BB → BBB
In tax debt0 days since 26.09.2026
Notification when something changes
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Data

Board and owners

2 persons
Number of active companies, tax debt and bankruptcy. Facts, not an assessment.
Board 2
Lauri Isotamm4 companiesno tax debtPersonal ID ↗09.05.2014
Rain Tamm4 companiesno tax debtPersonal ID ↗20.01.2026
Shareholders 4
Heikki Källu33,0% 990 €01.09.2023
Lauri Isotamm33,0% 990 €01.09.2023
Rain Tamm33,0% 990 €01.09.2023
Siena Holding OÜ1,0% 30 €01.09.2023
Beneficial owners 3
Heikki Källu2 companiesno tax debtdirect holding14.09.2018
Lauri Isotamm4 companiesno tax debtdirect holding14.09.2018
Rain Tamm4 companiesno tax debtdirect holding14.09.2018

Business Register open data

Quarterly taxes and revenue

2026 Q1
Build report

QuarterRevenueChange y/yLabour taxesState taxesEmployees
2026 Q1—0 €2 €—
2025 Q4—1 519 €1 312 €—
2025 Q3—1 519 €1 312 €1
2025 Q2—1 519 €1 312 €1
2025 Q1—1 423 €1 254 €1
2024 Q4—1 233 €1 139 €1
2024 Q3—1 233 €1 137 €1
2024 Q2—1 233 €1 137 €1
2024 Q1—1 219 €1 124 €1
2023 Q4—1 190 €1 098 €1
2023 Q3—1 190 €1 098 €1
2023 Q2—1 190 €1 098 €1
Show full history (17 quarters)
2023 Q1—1 190 €1 099 €1
2022 Q4—1 190 €1 098 €1
2022 Q3—1 190 €1 098 €1
2022 Q2—1 190 €1 098 €1
2022 Q1—1 190 €1 099 €1

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
Profit99 956 €▲ 187%34 853 €▲ 51%23 055 €0 €0 €
Profit margin—————
Retained earnings47 794 €▼ 37%75 941 €▼ 30%108 k €——
Cash6 563 €▼ 52%13 738 €▲ 226%4 212 €▼ 38%6 745 €▼ 14%7 838 €
Current assets56 439 €▲ 23%45 951 €▼ 54%101 k €▲ 18%85 453 €▲ 990%7 838 €
Fixed assets2,1 m €▲ 3%2,0 m €▼ 8%2,2 m €▲ 1%2,2 m €▲ 4%2,1 m €
Assets2,2 m €▲ 3%2,1 m €▼ 10%2,3 m €▲ 2%2,3 m €▲ 7%2,1 m €
Current liabilities2,0 m €▲ 2%2,0 m €▼ 10%2,2 m €▼ 4%2,3 m €▲ 7%2,1 m €
Total liabilities2,0 m €▲ 2%2,0 m €▼ 10%2,2 m €▼ 4%2,3 m €▲ 7%2,1 m €
Equity148 k €▲ 33%111 k €▼ 16%131 k €0 €0 €
Labour costs-10 972 €▲ 7%-11 768 €▼ 4%-11 273 €0%-11 239 €0%-11 239 €
Employees10%10%10%10%1
Filed07.07.202605.08.202511.07.202425.08.202329.05.2023
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

Real estate

e-kinnistusraamat

Loading properties…

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

Debts and court cases

clean
No tax debt · Tax Board 05.10.2026

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

none

No transactions with state agencies, procurement contracts or grants found

RTK Saldo, Riigihangete register, RTK toetatud projektid

Holdings in other companies

17
CompanyCodeHoldingSinceRevenue
Bolt Technology OÜ124178340,01%28.04.20252,27 bn €
Modular Technologies OÜ146551180,17%24.01.20246,0 m €
Fotograafia Tallinn OÜ1437042710,22%29.04.20262,5 m €
Remato Solutions OÜ145364020,19%19.01.20221,7 m €
Dermtest OÜ124939820,35%12.09.2024182 k €
Levila OÜ147913300,35%01.09.202328 801 €
Lahhentagge OÜ141325671,68%16.08.202320 072 €
Teamscope OÜ128718171,72%29.10.20249 500 €
K12 Technologies OÜ1202042716,68%07.05.20260 €
Earthtide Holding OÜ167045882,91%25.07.20230 €
Wise Guys Batch 10 OÜ143760512,4%05.09.20230 €
Wise Guys Batch 11 OÜ143929892,22%01.09.20230 €
Abventure OÜ142087151,61%02.09.20230 €
Wise Guys Fintech 2 OÜ145333901,44%21.04.20260 €
Siena Holding OÜ126589921,0%01.09.20230 €
Wise Guys Batch 9 OÜ142643981,0%03.07.20240 €
Clean Kitchen Holdings OÜ170095830,43%02.07.20240 €

Business Register

Companies linked via the board

5
Siena Venture Partners OÜLauri Isotamm, Rain Tamm1,1 m €AAAOsaühing Kombain & Ko.Rain Tamm57 950 €AHeisenberg Ehrmantraut OÜLauri Isotamm45 954 €ATallinn, F. R. Kreutzwaldi tn 7 // Raua tn 16 korteriühistuLauri Isotamm23 492 €BBBLuarvik Luarvik OÜRain Tamm0 €BB

Sorted by revenue (latest report or 4 quarters).

Top 20 in activity: Activities of holding companies

20
#CompanyRevenue
1OÜ Ferriol488,1 m €
2Osaühing Raglor267,5 m €
3Helmes Group AS117,9 m €
4Osaühing Rosier Team100,8 m €
5Kapitel Holding OÜ87,6 m €
6Expertus Invest OÜ56,4 m €
7Iiruk OÜ48,5 m €
8Vodapro Holding OÜ33,1 m €
9AS Esraven33,1 m €
10OÜ Fairfield Holding30,6 m €
11Südi OÜ26,6 m €
12Apalta Varad OÜ18,9 m €
13VL Investeeringud OÜ16,5 m €
14osaühing Tristafan14,6 m €
15Powerfleet Nordics OÜ14,5 m €
16Hotell Jurmala OÜ8,2 m €
17Osaühing RATO Holding8,1 m €
18AKTSIASELTS INFORTAR6,5 m €
19Eastnine Baltics OÜ2,7 m €
20OÜ Stargate Hydrogen1,3 m €

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

11
DateTypeContent
20.01.2026EntryAmendment entry
10.07.2024Trahvihoiatusmäärus: majandusaasta aruanne esitamata
01.09.2023EntryAmendment entry
20.05.2022EntryAmendment entry
13.05.2022EntryEsimene, deklaratiivne jagunemiskanne (omandava isiku registrikaardile)
13.05.2022EntryKolmas, informatiivne jagunemiskanne (omandava isiku registrikaardile)
03.04.2018Warning order on deletion from the register: annual report not filedKustutamiskanne dokumentide hoidjata
18.01.2018EntryAmendment entry
07.12.2017EntryAmendment entry
31.08.2016EntryAmendment entry
09.05.2014EntryFirst entry