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Search›Companies›Solarstone OÜ
12916046ActivePrivate limited companyEE101855882 · VAT-registered

Solarstone OÜ

Viljandi maakond, Viljandi linn, Arkaadia aed 5·EMTAK 26111 — Manufacture of electronic components·10+ years
Andmed · ···
On this page
SanctionsOverviewOfficersShareholdersFoundersOther rolesForeign parentSubsidiariesFinancialsTax filingsPledgesPledges as creditorLicencesNoticesTech stackCourt rulingsTVK decisionsBlacklistLabour inspectorateHazardous facilityDPA decisionsTax-deductibleEU lobby registerTrademarksPatentsReal estateVehiclesGrantsProcurementsDocumentsState paymentsActivityConnected companies
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Overview

e-Business Register · 19 h ago
Registry code
e-Business Register
Legal form
Private limited company
Registered
21.09.2015e-Business Register
Address
Arkaadia aed 5, Viljandi linn, 71004 Viljandi maakondADS · e-Business Register
E-mail address
info@solarstone.come-Business Register
Website
www.solarstone.come-Business Register · domain active
Telephone
+372 56316666· Telia Eesti ASe-Business Register · TTJA NBA
Principal activity
EMTAK 26111 - Manufacture of electronic componentse-Business Register · ETCB
VAT number
ETCB · VAT-registered
Share capital
3 004 024,00 €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

Browse

  • Home
  • Views
  • Industries
  • Activity licences
  • Recent registrations

Data

  • 79 sources
  • Database
  • Extensions
  • MCP

Organisation

  • About
  • FAQ
  • For journalists
  • Donate
  • Donation terms
  • Refunds
  • Terms
  • Privacy
  • Contact
© 2026 Nimistu MTÜ. License CC-BY-SA 4.0 · details
Data · 22 sourcese-Business Register · 2 min agoMTARTKMTRProcurementsEIS · PRIAKohesioOfficial NoticesRiigi Teataja · RiigikohusEUIPOPatendiametBuiltWithWeb tech scanEesti InternetTööinspektsioon
e-Business Register ↗

Registered 21. september 2015, primary activity: Manufacture of electronic components. Main place of business in Viljandi linn, Viljandi maakond.

Revenue 2026 II kv
259 678 €
▼ 51% vs 2025 II kv
As of 10.07.2026 (MTA)
Employees
17
2026 (MTA)
Taxes paid
382 338 €
State + labour taxes · 2026 II kv
Tax debt
0 €
As of 09.08.2026 (MTA)
Revenue 2026 (I-II kv)
458k €
▼ 47% vs 2025 I-II kv
As of 10.07.2026 (MTA)
Employees
17
2026 (MTA)
Taxes paid
583k €
State + labour taxes · 2026 (I-II kv)
Tax debt
€0
As of 09.08.2026 (MTA)

Tax debt over time

MTA · last 365 d
Current €0max 241k €
12 May 202626 Jun 202610 Aug 2026
30 days
−237k €
237 425,87 € → 0,00 €
90 days
−33k €
33 355,64 € → 0,00 €
365 days
–
no data yet

Officers

e-Business Register · 19 h ago
RR
Romet Roosalu
Born 1978 · 48 y · board member since 07.07.2023
Board member

Founders (3)

e-Business Register · 19 h ago
JJ
Jane Jürimäe
Born 1985 · 40 y · founder since 17.09.2015
Founder · 625 €
MK
Mait Kukk
Born 1986 · 39 y · founder since 17.09.2015
Founder · 1k €
SA
Silver Aednik
Born 1983 · 43 y · founder since 17.09.2015
Founder · 625 €

Shareholders

e-Business Register · 19 h ago
OB
OÜ BiofuelLEGAL PERSON
Legal person · 10962786 · shareholder since 05.11.2025
Shareholder 100% · 3,0m €

Other persons

e-Business Register · 19 h ago
NC
Nasdaq CSD SEFOREIGN
Foreign / not in register · registrar of the members since 09.07.2019
Registrar of the members

Subsidiaries

e-Business Register · shareholders · 19 h ago
Solarstone OÜ12916046Shareholder 100%Solarest OÜ12444191Shareholder 100%Solarstone Infra OÜ14811908
Solarstone OÜ is a shareholder or officer in 2 more companies.

Annual reports (7)

e-Business Register · annual reports · 4 päeva tagasi
Revenue 2025
1,0m €
↘ -21.2% vs 2024
State taxes 2025
421k €
↘ -4.9% vs 2024
Employees 2025
21
↘ -16.0% vs 2024
YearRevenueProfitEquityAssetsEmployees
2025AUD1 004 271 €−2 442 407 €-514k €2,6m €2102.06.2026
2024AUD1 275 012 €−2 846 370 €-1,1m €2,8m €2514.11.2025
2023AUD3 171 174 €−2 252 803 €1,8m €2,9m €3901.07.2024
Original files in PDF – the full register on e-Business Register.View reports on e-Business Register

Taxes, revenue and employees

Estonian Tax and Customs Board · 10.07.2026 as of
2,0m €1,0m €0
20222023202420252026
YearRevenue (a)State taxesTaxes on workforceEmployees (Q4)
2026I-II Q458 045 €283 436 €299 689 €17
20251 594 982 €420 775 €426 600 €15
20242 171 173 €442 291 €553 739 €19
20233 816 218 €622 809 €627 777 €32
20223 190 244 €293 412 €
Quarterly breakdown
YearQ1Q2Q3Q4
Revenue 2026198k €260k €––
State taxes 202698k €185k €––
Taxes on workforce 2026102k €197k €––
Employees 20261517––
Revenue 2025332k €526k €404k €332k €
State taxes 2025110k €120k €

Commercial pledges (2 · 235k €)

Business Register · pledges
Coop Pank AS
10237832 · 2 pledge(s) · all active
235k €
#1
Rank esimene
From 01.07.2021
100 000,00 €
Active
#2
Rank teine
From 04.02.2022
135 000,00 €
Active

Licences (1)

MTR · 18 h tagasi
Active licences
1
Other1
Oldest · Newest
2025→2025
Oldest licenceTEL004903 · 23.04.2025
Active1 / 1
TEL004903
Elektritööd
Majandustegevusteade
From23.04.2025
UntilOpen-ended
Valid

Official notices (2)

Ametlikud Teadaanded · 1 päeva tagasi
Koondumise otsuse teade (KonkS § 27 lg 12)
Konkurentsiamet · 2241873
08.04.2024
Koondumise teade (KonkS § 27 lg 12)
Konkurentsiamet · 2231384
12.03.2024

Tech stack

Website analysis · 20 h tagasi
Domains (2)
www.solarstone.com
SRCÄriregister
solarstone.ee
SPFDMARC
MXMicrosoft 365
NSZone.ee
REGZone Media OÜ
SRCEIS WHOIS
Detected technologies
OtherOpen Graph · Schema.org
Tag managerGoogle Tag Manager
Web serverApache
UI frameworkTailwind CSS
Mobile carrier
+372 56316666Telia Eesti AS

Court rulings (2 · 1 as claimant · 1 as respondent)

Riigi Teataja

Role in proceedings2025

2 with a known role
Claimant 150%
Respondent 150%
20252 decisions
09.07.20252-25-5361/19
Võlaõigus › Kahju õigusvastane tekitamineTartu Maakohus Tartu kohtumajaDecision PDF →On Riigi Teataja →On lahend.ee →
HagejaJõustunud
26.06.20252-25-4941/4
Ühinguõigus › Ühingu organi otsuse vaidlustamineTartu Maakohus Võru kohtumaja VõrusOther parties: Monosolar OÜ (Hageja)Decision PDF →On Riigi Teataja →On lahend.ee →
KostjaJõustunud

Labour Inspectorate (1 act(s))

opendata.ti.ee

Enforcement cases· 1 case · 1 act

3-1/26/31916.03.2026
1 act
Ettekirjutus1 act · 16.03.2026
—
Show every act (1)+
202616.03.2026
Content access is restricted.
3-1/26/319-1-1 · Ettekirjutus
Violation
—
No fine

Trademarks (3)

Patendiamet · EUIPO · 17.05.2026
SOLARSTONE
4 classes · figurative-word · 13.10.2025 · M202501005
Registered
SO
SolarStone
8 classes · word · 26.03.2020 · 018215671
Registered
SO
SolarStone
3 classes · word · 25.09.2019 · M201900987
Registered

Patents (3 · 0 active)

Estonian Patent Office · patents, utility models, EU validations
EU patent1(0 active)Utility model1(0 active)Design1(0 active)
05879

System and method for connecting and fixing framed solar panels to make a weatherproof building-integrated modular surface

Design · IPC F24S 20/60,F24S 25/20,E04D 13/18,H01L 31/04
Filed 14.05.2020
E018200

AN INTEGRATED SOLAR PANEL TO A TILED ROOF

EU patent · IPC H02S 30/10,H02S 20/23,F24S 25/20,F24S 25/67,F24S 25/632,F24S 20/67
Filed 06.11.2017
01416

An integrated solar panel to the tiled roof

Utility model · IPC H02S 20/23,F24J 2/52
Filed 07.11.2016

Grants (7 · 347k €)

EIS + PRIA + Kohesio + Estonian Unemployment Insurance Fund
FunderGrantsTotalShare
EIS
4
314k €
Kohesio
3
33k €
Solarstone protsesside digitaliseerimine
EISEttevõtete digipöörde toetusTaaste ja vastupidavusrahastu (RRF)2023
296 604 €
Solarstone OÜ detailse energia- ja ressursiauditi koostamine
KohesioÜhtekuuluvuspoliitika fond (ERDF)European Regional Development Fund2022
5900 €
Raamitud päikesepaneeli rahvusvaheline patendikaitse
EISInnovatsiooniosak. ArendusosakEuroopa Regionaalarengu fond (ERDF)2021
4160 €
SolarStone arendusosak
EISInnovatsiooniosak. ArendusosakEuroopa Regionaalarengu fond (ERDF)2018
11 743 €
SolarStone arendusosak
KohesioÜhtekuuluvuspoliitika fond (ERDF)European Regional Development Fund2017
11 743 €
SolarStone innovatsioon
EISInnovatsiooniosak. ArendusosakEuroopa Regionaalarengu fond (ERDF)2016
1736 €
Show remaining (1)
Starditoetus
KohesioÜhtekuuluvuspoliitika fond (ERDF)European Regional Development Fund2015
14 983 €

Public procurements (2 · 416k €)

Procurement Register · 18 h tagasi
Role
Buyer1Supplier2
Total earned as supplier: 416k €
Awards
2
2023–2023 · 1 year
Total amount
416k €
avg 208k €
Buyers
2
top: Keemilise ja Bioloogilise Füüsika Instituut
Latest
14.08.2023
99k € · OÜ Otepää Üürimajad
BuyersAll3Keemilise ja Bioloogilise Füüsika Instituut1OÜ Otepää Üürimajad1
20232 awards416k €
14.082023
Otepää Kopli 6b kinnistule päikesepargi ehitus
ServicesNotice 39547f25-9d69-4504-abc2-fa05dac7f087
OÜ Otepää Üürimajad
14652137
99 013 €
Award value
24.072023
PV-elektrijaama rajamine KBFI Akadeemia tee 23 hoone katusele
ServicesNotice 506a0506-cd7f-4130-8333-8d274379d61f
Keemilise ja Bioloogilise Füüsika Instituut
74000257

State-sector payments (7 · 208k €)

RTK Makseandmik · 15.05.2026
Transactions
7
2024–2025 · 2 years
Total amount
208k €
avg 30k €
Buyers
5
State and municipal bodies
Latest
19.12.2025
868 € · Tallinna Tehnikaülikool

2025: 868 € · 2024: 208k €

BuyerTxAmountShare
KLIIMAMINISTEERIUM
70001231
2
157k €
MAJANDUS- JA KOMMUNIKATSIOONIMINISTEERIUM
70003158
2
36k €
Tartu Linnavalitsus
75006546
1
13k €
Tallinna Tehnikaülikool
74000323
1
868 €
Viljandi Vallavalitsus
75038606
1
850 €
20251 transaction · 868 €
19.122025
Tallinna Tehnikaülikool74000323
MAJANDAMISKULUD · Teadus- ja arendustegevus hariduses
868 €
20244 transactions · 160k €
05.112024
KLIIMAMINISTEERIUM70001231
MUUD TOETUSED · Muu keskkonnakaitse (sh keskkonnakaitse haldus)
153 622 €
25.072024
MAJANDUS- JA KOMMUNIKATSIOONIMINISTEERIUM

History

last 2 years · MTA + ÄR + MTR + Procurements
2026
12.07.2026TaxMaksuvõlg kasvas— +3816 € (kokku 241 242 €)
11.07.2026TaxMaksuvõlg kasvas— +35 832 € (kokku 237 426 €)
10.07.2026TaxMaksuvõlg kasvas— +281 € (kokku 201 594 €)
09.07.2026TaxMaksuvõlg vähenes— −3213 € (jäänud 201 313 €)
08.07.2026TaxMaksuvõlg vähenes— −11 419 € (jäänud 204 526 €)
07.07.2026TaxMaksuvõlg kasvas— +173 353 € (kokku 215 945 €)
18.06.2026TaxMaksuvõlg vähenes— −6908 € (jäänud 42 592 €)
17.06.2026TaxMaksuvõlg vähenes— −8336 € (jäänud 49 500 €)
16.06.2026TaxMaksuvõlg kasvas— +224 € (kokku 57 835 €)
12.06.2026TaxMaksuvõlg vähenes— −181 382 € (jäänud 57 612 €)
11.06.2026TaxMaksuvõlg kasvas— +205 638 € (kokku 238 993 €)
02.06.2026ReportEsitati 2025. aasta aruanne— Käive 1 004 271 €
12.05.2026TaxMaksuvõlg kasvas— +33 356 € (kokku 33 356 €)
2025
21.11.2025FilingMuutmiskanne2×expand ›hide ⌃
  • Ä 50015413 / 22 · Olek: Jõustunud
  • Kanne nr 20 · kanne
14.11.2025ReportEsitati 2024. aasta aruanne— Käive 1 275 012 €
05.11.2025OfficerSai osanikuks— OÜ Biofuel · · 100 %
23.04.2025LicenceUus MTR tegevusluba— Majandustegevusteade · TEL004903
2024
11.12.2024FilingKorraldav määrus— Ä 50015413 / M6 · Olek: Jõustunud
01.11.2024FilingMuutmiskanne2×expand ›hide ⌃
  • Ä 50015413 / 20 · Olek: Jõustunud
  • Kanne nr 18 · kanne

Connected companies

Same-person ties · e-Business Register

Solarstone OÜ is connected to 13 other companies through 3 people who hold a role here and elsewhere. The strongest tie runs through Romet Roosalu (6 companies).

Total connections
13
via 3 people
Connecting people
3
Active here
Distinct roles
2
Board member · Founder
Strongest tie
Romet
6 companies
Via personRomet Roosalu6Mait Kukk4Silver Aednik3
RR
Romet Roosalu
board member
6 other companies›
CompanyRoleReg. code
Diah Ambar OÜ
Board member
17239604
Intemor Group OÜ
Board memberShareholder 100%Founder
2022AUD2 414 600 €−2 093 625 €4,4m €5,4m €2613.08.2023
2021AUD1 589 011 €−84 975 €549k €1,5m €1629.09.2022
2020AUD1 695 427 €92 042 €638k €1,3m €1218.10.2021
2019624 704 €58 559 €546k €787k €510.07.2020
254 624 €
38
97k €
94k €
Taxes on workforce 2025113k €117k €102k €94k €
Employees 202520151615
Revenue 2024405k €696k €269k €802k €
State taxes 2024199k €142k €55k €47k €
Taxes on workforce 2024148k €146k €146k €113k €
Employees 202425222119
Revenue 2023837k €1,1m €964k €938k €
State taxes 2023139k €146k €160k €179k €
Taxes on workforce 2023147k €146k €169k €166k €
Employees 202338393532
Revenue 2022501k €648k €825k €1,2m €
State taxes 202260k €48k €80k €105k €
Taxes on workforce 202238k €42k €67k €107k €
Employees 202218243238
316 616 €
Award value
70003158
MUUD TOETUSED · Üldine majandus- ja kaubanduspoliitika
2030 €
21.052024
KLIIMAMINISTEERIUM70001231
MUUD TOETUSED · Muu keskkonnakaitse (sh keskkonnakaitse haldus)
3420 €
21.052024
Viljandi Vallavalitsus75038606
MAJANDAMISKULUD · Põhi- ja üldkeskharidus
850 €
Show remaining 2 transactions+
20242 transactions · 48k €
07.032024
MAJANDUS- JA KOMMUNIKATSIOONIMINISTEERIUM70003158
MUUD TOETUSED · Üldine majandus- ja kaubanduspoliitika
34 374 €
03.012024
Tartu Linnavalitsus75006546
PÕHIVARA · Tänavavalgustus
13 219 €
04.03.2025
FilingMuutmiskanne2×expand ›hide ⌃
  • Ä 50015413 / 21 · Olek: Jõustunud
  • Kanne nr 19 · kanne
03.03.2025FilingMuutmiskanne— Ä 50015413 / M7 · Olek: Puudused kõrvaldatud
14460805
Maksifoto OÜ
Board member
10071024
Solarest OÜ
Board member
12444191
Solarstone Infra OÜ
Board member
14811908
Temor Consulting OÜ
Founder
12819627
MK
Mait Kukk
founder
4 other companies›
CompanyRoleReg. code
MK1 OÜ
Board memberShareholder 100%Founder
14595592
Monosolar OÜ
Founder
14623762
MTÜ Seltec Racing
Board memberFounder
80561729
Solarstone Infra OÜ
Founder
14811908
SA
Silver Aednik
founder
3 other companies›
CompanyRoleReg. code
Monosolar OÜ
Board memberFounder
14623762
OÜ Masitech
FounderBoard memberShareholder 100%
12225738
OÜ RJ Invest
Board member
16524975

Documents (2)

dokumendiregister.ee
  • 21.12.2022vastus päringule· Väljaminev kiriKaitseministeerium
  • 09.11.2022Päikesepaneelidega kaetud Narva jalgpallihall· Sissetulev kiriKaitseministeerium

Analysis · 2025

computed from annual reports
Revenue1,0m €median 441k €2.3× the sector median
Net margin-243.2%median 3.5%-246.7 pp vs sector median
Revenue per employee48k €median 96k €50% of the sector median
Revenue change-21.2%median 8.6%-29.9 pp vs sector median
Equity ratio-19.6%equity is negative
Current ratio0.45current assets cover under 1× liabilities
Labour cost of revenue98.0%
Profit per employee−116 305 €
Compared with2024revenue 1,3m €

Peer group: Elektronkomponentide tootmine, 25 trading companies that filed a report in the last three years.

Founded 2015. That year 10,359 osaühing were registered; 9,970 are still trading, or 96.2%.