ETENRU
RegisteredHarju County
Registry code
12509045
VAT number
EE101651730
Address
Harju maakond, Tallinn, Haabersti linnaosa, Meistri tn 10, 13517
Registered
23.07.2013 · 13 yrs
Activity
Electrical installation 4321
Capital
2 520 €
Email
i•••@s•••.eeLog in to see
Phone
+372 •• ••••Log in to see
Website
http://www.sigmasystems.ee
Business Register 05.10.2026
Sales revenue2,6 m €+105%2025 annual report
Profit117 k €2025 annual report
Employees7Tax Board 2026 Q2
Average gross salary2 292 €estimate, Tax Board 2026 Q2
Labour taxes per quarter24 544 €Tax Board 2026 Q2
Cash47 388 €Cash 31.12.2025, annual report
Tax debt0 €Tax Board debtor list 05.10.2026
Revenue 12 months4,8 m €+155%Tax Board, last 4 quarters
State taxes 12 months516 k €Tax Board, last 4 quarters
Tax debt since 26.09.2026 · ✓ no debt
Details ↓
Turnover by quarter · latest 1,5 mln €
377 k444 k406 k656 k1,5 M1,1 M795 k1,5 M
III 24IV 24I 25II 25III 25IV 25I 26II 26
Chart ↓
Firmo rating
AA
Very good, low risk
81 / 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)
  • VAT registered
Stability
RatingAA → A → AA
In tax debt0 days since 26.09.2026
Revenue 12 months▲ 155% vs a year earlier
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
Alvar Kaur4 companiesno tax debtPersonal ID ↗23.07.2013
Kristjan Karming8 companiesno tax debtPersonal ID ↗23.07.2013
Shareholders 3
Kristjan Karming33,33% 840 €02.09.2023
Osaühing MAIMIKK33,33% 840 €02.09.2023
Silver Karming33,33% 840 €02.09.2023
Beneficial owners 3
Alvar Kaur4 companiesno tax debtdirect holding26.09.2018
Kristjan Karming8 companiesno tax debtdirect holding13.09.2018
Silver Karming1 companyno tax debtdirect holding13.09.2018

Business Register open data

Quarterly taxes and revenue

2026 Q2
State taxes / revenue4,3%
Labour taxes / revenue1,7%
Revenue per employee per month70 204 €
Gross salary (estimate)2 292 €
Net salary (estimate)1 877 €

2026 Q2. Wage is estimated from employment taxes.

Build report

QuarterRevenueChange y/yLabour taxesState taxesEmployees
2026 Q21 474 293 €▲ 125%24 544 €63 274 €7
2026 Q1795 000 €▲ 96%25 299 €140 824 €7
2025 Q41 055 021 €▲ 138%27 326 €127 972 €7
2025 Q31 485 306 €▲ 294%25 726 €183 584 €7
2025 Q2656 037 €▲ 39%21 747 €81 773 €7
2025 Q1405 785 €▲ 119%21 529 €41 984 €6
2024 Q4443 751 €▼ 15%21 740 €64 227 €6
2024 Q3377 109 €▼ 59%19 350 €59 896 €6
2024 Q2471 315 €▼ 39%18 452 €77 988 €6
2024 Q1184 961 €▼ 78%18 270 €32 315 €6
2023 Q4522 589 €▼ 55%19 117 €48 606 €6
2023 Q3925 369 €▲ 25%18 398 €123 717 €6
Show full history (18 quarters)
2023 Q2774 075 €▼ 13%17 264 €59 906 €6
2023 Q1828 458 €▲ 72%12 464 €77 644 €6
2022 Q41 162 030 €8 139 €98 785 €5
2022 Q3740 790 €8 169 €52 734 €3
2022 Q2891 952 €7 484 €32 663 €3
2022 Q1482 685 €7 040 €78 290 €3

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 revenue2,6 m €▲ 105%1,3 m €▼ 55%2,9 m €▲ 41%2,0 m €▲ 27%1,6 m €
Profit117 k €▲ 61%72 692 €▼ 47%138 k €▲ 137%58 274 €▲ 60%36 314 €
Profit margin4,5%5,7%4,8%2,9%2,3%
Retained earnings424 k €▲ 7%396 k €▲ 37%288 k €▲ 8%266 k €▲ 16%229 k €
Cash47 388 €▼ 44%84 616 €▼ 45%154 k €▲ 89%81 644 €▲ 911%8 077 €
Current assets863 k €▲ 56%553 k €▲ 6%520 k €▼ 48%1,0 m €▲ 264%276 k €
Fixed assets374 k €▲ 18%317 k €▲ 15%275 k €▲ 7%256 k €▲ 2%252 k €
Assets1,2 m €▲ 42%869 k €▲ 9%795 k €▼ 37%1,3 m €▲ 139%528 k €
Current liabilities691 k €▲ 74%398 k €▲ 9%367 k €▼ 61%933 k €▲ 259%260 k €
Long-term liabilities2 822 €————
Total liabilities694 k €▲ 74%398 k €▲ 9%367 k €▼ 61%933 k €▲ 259%260 k €
Equity543 k €▲ 15%471 k €▲ 10%428 k €▲ 31%326 k €▲ 22%268 k €
Labour costs-235 k €▼ 22%-192 k €▼ 7%-179 k €▼ 99%-90 253 €▼ 95%-46 401 €
Employees8▲ 33%60%6▲ 50%4▲ 100%2
Filed30.06.202625.06.202530.06.202430.06.202329.06.2022
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
Electrical installation main activity43212 625 231 €100%

2025 annual report, RIK open data

Real estate

e-kinnistusraamat

Loading properties…

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

Building permits where the company is a party

4 documents
Documents4
As owner0
As builder4
In the last 12 months4
DateBuilding and addressDocument and roleMunicipality
22.09.2026viilhall inv.nr.3403, viilhall inv.nr.6002
Põlva vald, Põlva linn, Energia tn 10
Notice of use
taotleja, ehitaja
Põlva valdEHR →
04.09.2026Residential building
Rapla vald, Juula küla, Lõhmuse tee 9
Notice of use
ehitaja
Rapla valdEHR →
04.09.2026Tuleviku 750kW päikesepark
Järva vald, Järva-Jaani alev, Tuleviku
Building permit application
taotleja, ehitaja
Järva valdEHR →
01.09.2026Puhkekeskuse puhkemaja
Hiiumaa vald, Poama küla, Tõnise/1
Building notice
taotleja, ehitaja
Hiiumaa valdEHR →

All building permits of this company → Source: Register of Construction Works (CC BY-SA 3.0). Private persons are not shown.

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

459 tuh € makseid · 1 tenders

Transactions with state institutions

2026391 k €
202549 212 €
202418 487 €

Largest payers

Tallinna Spordikeskus427 018 €
Türi Vallavalitsus18 487 €
OÜ Eesti Keskkonnauuringute Keskus13 268 €
All payments by month
MonthPayerTypeFieldAmount
08.2026Tallinna SpordikeskusFixed assetsOther economic affairs (incl. administration)64 104 €
02.2026OÜ Eesti Keskkonnauuringute KeskusFixed assetsOther environmental protection (incl. administration)6 448 €
01.2026Tallinna SpordikeskusFixed assetsOther economic affairs (incl. administration)320 522 €
12.2025OÜ Eesti Keskkonnauuringute KeskusFixed assetsOther environmental protection (incl. administration)6 014 €
10.2025OÜ Eesti Keskkonnauuringute KeskusOperating costsOther environmental protection (incl. administration)806 €
09.2025Tallinna SpordikeskusFixed assetsOther economic affairs (incl. administration)21 368 €
07.2025Tallinna SpordikeskusFixed assetsOther economic affairs (incl. administration)21 023 €
02.2024Türi VallavalitsusFixed assetsOther housing and communal services17 988 €
01.2024Türi VallavalitsusOperating costsYouth work and youth centres499 €

Riigi Tugiteenuste Keskus, Saldo makseandmikud

Public procurement contracts

DateContracting authorityTenderAmount
23.01.2025Tallinna LinnavaraametTöövõtuleping_ SigmaSystems OÜ317 522 €

Public Procurement Register

Holdings in other companies

2
CompanyCodeHoldingSinceRevenue
Olsson Solar OÜ1460674620,0%16.08.2023177 k €
Olsson Energy Mäo OÜ1449995420,0%16.08.202348 107 €

Business Register

Companies linked via the board

10

Top 20 in activity: Electrical installation

20

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

Licences, domains

3 records

Activity licences (MTR and environmental)

FieldLicence numberValid from
EhitamineEEH00742410.02.2014
ElektritöödTEL00229306.02.2014

Domains

DomainSource
sigmasystems.eeBusiness Register

History and notices

9
DateTypeContent
02.09.2023EntryAmendment entry
23.11.2021EntryMuutmiskanne ÄS § 525 lg 2 alusel
28.06.2018EntryMuutmiskanne ÄS § 525 lg 2 alusel
23.05.2018EntryAmendment entry
18.01.2018EntryAmendment entry
21.12.2015EntryAmendment entry
14.01.2014EntryAmendment entry
13.01.2014Order to remedy deficienciesAmendment entry
23.07.2013EntryFirst entry