Business profile

Thunder Rock Oy

Thunder Rock Oy's registered office is Linnavuori. It is a limited company. The company was established on 2018-07-02. It operates in the industry of other technical testing and analysis. In its latest retained statement for 2025-06-30, revenue was €54,114 and operating profit was -€9,953.

Claim profileContact details
Business ID 2923427-3ValidUnclaimed company profile

Trusted core data

Public company details from the trade register.

Business ID
2923427-3
Sector
Other technical testing and analysis
Municipality
Linnavuori
Company form
Limited company
Registration date
2018-07-02
Business ID registration date
2018-06-26
Business status
Valid
Profile ownership
Unclaimed company profile

Contact and location summary

Visiting address: MIHARINTIE 40/2, 37240, Linnavuori

Phone: +358400724016Source observation

Email: [email protected]Source observation

People and decision-makers

Yrjänä Esa TuomasToimitusjohtaja

About Thunder Rock Oy

Financial position and key figures for the company.

Thunder Rock Oy's location municipality is Linnavuori. It is a limited company. The company was established on 2018-07-02. It operates in the industry of other technical testing and analysis. In its latest retained statement for 2025-06-30, revenue was €54,114 and operating profit was -€9,953. The latest retained financial statement for 2025-06-30 shows revenue of €54,114 and profit for the financial year of -€10,110. Based on the latest retained statement, revenue growth was -54.6%, operating margin was -12.3%, and equity ratio was +79.6%.

Financial highlights

Key figures from the latest financial period.

Latest financial period

2025-06-30

Imported periods0
PRH parsed0
Profile sourceEnriched source observation
Derived indicators
Revenue growth-54.6%
Operating margin-12.3%
Equity ratio79.6%
Revenue€54,114-€65,070 (-54.6%) vs previous periodPrevious: €119,184
Operating profit (loss)-€9,953-€6,363 (-177.2%) vs previous periodPrevious: -€3,590
Profit (loss) for the financial year-€10,110-€6,396 (-172.2%) vs previous periodPrevious: -€3,714
Assets€24,965-€17,067 (-40.6%) vs previous periodPrevious: €42,032
Balance-sheet contextLatest financial period
Profit before taxes-€10,110Previous: -€3,714
Employees1Previous: 1
Revenue trend5 periods
€170,189
2021-06-30
€135,968
2022-06-30
€136,149
2023-06-30
€119,184
2024-06-30
€54,114
2025-06-30
Operating profit (loss) trend5 periods
€8,401
2021-06-30
€16,160
2022-06-30
€16,288
2023-06-30
-€3,590
2024-06-30
-€9,953
2025-06-30
Profit (loss) for the financial year trend5 periods
€6,677
2021-06-30
€12,829
2022-06-30
€12,916
2023-06-30
-€3,714
2024-06-30
-€10,110
2025-06-30
Assets trend5 periods
€30,912
2021-06-30
€53,350
2022-06-30
€55,504
2023-06-30
€42,032
2024-06-30
€24,965
2025-06-30

Financial ratios

Financial ratios based on financial statement data. Source: Rikastettu lähdehavainto.

Equity ratioGood
100/100 · Improving
79.6 %2024-06-30: 77.5 %
Current ratioNot assessable
0/100 · Trend unavailable
Not available2024-06-30: Ei saatavilla
Operating profit marginWeak
19/100 · Declining
-12.3 %2024-06-30: -3.0 %
Ratio history
Ratio2021-06-302022-06-302023-06-302024-06-302025-06-30
Equity ratio40.6 %47.6 %65.4 %77.5 %79.6 %
Current ratio-----
Operating profit margin4.7 %11.9 %12.0 %-3.0 %-12.3 %

Registry status and identifiers

Current registry information and identifiers based on YTJ data.

YTJ statusValid
Trade RegisterRegistered
Business ID2923427-3
VAT IDFI29234273
EU IDFIFPRO.2923427-3
MunicipalityLinnavuori
Current registered entries
2018-06-26VAT-liable for business activity in Tax Administration (VAT Register)
2018-07-02Registered in Tax Administration (Tax Administration)
2018-07-02Registered in Patent and Registration Office (Trade Register)
2019-10-23Registered in Tax Administration (Prepayment Register)

Responsible people

Public role relationships materialized from source observations.

Yrjänä Esa TuomasToimitusjohtajaSources: 5 · Confidence: 78%
Yrjänä Esa TuomasPuheenjohtajaSources: 3 · Confidence: 78%
Yrjänä Samuli TuomasVarsinainen jäsenSources: 3 · Confidence: 78%
Saarela Emma MariaVarajäsenSources: 2 · Confidence: 78%

Risk certificate

An open-data based company stability and risk signal.

BUSINESS.fi

BUSINESS.fi Luottoluokitus

Profile-specific risk signal based on open data

Automatic gradeNot a credit decision
B2
SatisfactoryThunder Rock Oy
Model score56/100
Assessment confidenceMedium
Evidence qualityStrong financial evidenceFinancial data included
Financial trajectorySeveral key financial indicators have weakened across comparable fiscal periods.
4 comparable periods
RevenueDeteriorating · 2 consecutive periods
ProfitabilityDeteriorating · 2 consecutive periods
SolvencyImproving
LiquidityNot enough history
Peer comparisonSame size nationallyDescriptive comparison – does not change the model score.
389 peers
Solvency66%
Better than 66% of peers
Profitability28%
Below 72% of peers
Revenue growth15%
Below 85% of peers
Supporting factors
  • Strong equity ratio
  • Company context reduces the weight of an isolated financial signal
  • Active registered status
Risk factors to note
  • Negative profitability or net result
  • Losses in the latest and previous available periods
  • Sharp year-over-year revenue drop
Automatic model gradeB2
Automatic model snapshot2026-09-28
Automatic model versionopen-risk-grade-v0.14
Financial data included

The grade can use open digital financial statement data together with registry signals.

Verify assessment

Risk context

When sufficient source-backed financial metrics are not available for a Tier 1 assessment, BUSINESS.fi shows registry, industry, and regional context.

Industry riskelevated
47/100

Industry context is elevated based on normalized open statistical inputs.

Age and continuityHyvä
60/100

The company has about 8 years of registry continuity.

Registry and status signalsSeurattava
69/100

Registry history, filing recency, and active register markings are still limited or mixed.

Events & news

Verified events and sourced external company news in one timeline.

Risk grade updatedRisk gradeEvidence verified
28 Sept 2026 · BUSINESS.fi / Opterom LuottoluokitusAutomatic grade B2.

Registry timeline

Trade register notifications shown on a timeline.

13 register eventsLatest event: 2025-11-12

Profile source and ownership

Profile based on public registry data
BUSINESS.fi has created this profile from public company information. Source data updated 2025-12-31.

This company profile has not been claimed yet

Thunder Rock Oy shows public core facts. A company representative can claim the profile, update public information, and access owner tools.