Risk grade updatedRisk gradeEvidence verified
3 Oct 2026 · BUSINESS.fi / Opterom LuottoluokitusAutomatic grade A3.Business profile
Mauri Kuustonen Oy
Mauri Kuustonen Oy's registered office is Masku. It is a limited company. The company was established on 1978-01-13. It operates in the industry of other engineering design and technical consultancy incidental to building construction. In its latest retained statement for 2025-12-31, revenue was €0 and operating profit was -€1,160.
Business ID 0204561-6ValidUnclaimed company profile
Trusted core data
Public company details from the trade register.
- Business ID
- 0204561-6
- Sector
- Other engineering design and technical consultancy incidental to building construction
- Municipality
- Masku
- Company form
- Limited company
- Registration date
- 1978-01-13
- Business ID registration date
- 1978-06-30
- Business status
- Valid
- Profile ownership
- Unclaimed company profile
Contact and location summary
Visiting address: Margaretankuja 7, 21250, Masku
Phone: +35824730656Source observation
People and decision-makers
Kuustonen Karri TuomasToimitusjohtaja
About Mauri Kuustonen Oy
Financial position and key figures for the company.
Mauri Kuustonen Oy's location municipality is Masku. It is a limited company. The company was established on 1978-01-13. It operates in the industry of other engineering design and technical consultancy incidental to building construction. In its latest retained statement for 2025-12-31, revenue was €0 and operating profit was -€1,160. The latest retained financial statement for 2025-12-31 shows revenue of €0 and profit for the financial year of €1,873. Based on the latest retained statement, revenue growth was not currently available, operating margin was not currently available, and equity ratio was +99.7%.
Financial highlights
Key figures from the latest financial period.
Latest financial period
2025-12-31
0
0
Enriched source observation
Derived indicators
Equity ratio99.7%
Revenue€0+€0 vs previous periodPrevious: €0
Operating profit (loss)-€1,160+€320 (+21.7%) vs previous periodPrevious: -€1,480
Profit (loss) for the financial year€1,873+€3,352 (+226.6%) vs previous periodPrevious: -€1,479
Assets€165,556-€29,934 (-15.3%) vs previous periodPrevious: €195,490
Balance-sheet contextLatest financial period
Profit before taxes€2,342Previous: -€1,479
Revenue trend4 periods
€0
2022-03-31
€0
2023-03-31
€0
2024-03-31
€0
2025-12-31
Operating profit (loss) trend4 periods
-€505
2022-03-31
-€32
2023-03-31
-€1,480
2024-03-31
-€1,160
2025-12-31
Profit (loss) for the financial year trend5 periods
€0
2021-03-31
-€502
2022-03-31
-€32
2023-03-31
-€1,479
2024-03-31
€1,873
2025-12-31
Assets trend5 periods
€203,897
2021-03-31
€197,002
2022-03-31
€196,970
2023-03-31
€195,490
2024-03-31
€165,556
2025-12-31
Financial ratios
Financial ratios based on financial statement data. Source: Rikastettu lähdehavainto.
Equity ratioGood
100/100 · Declining
Current ratioNot assessable
0/100 · Trend unavailable
Operating profit marginNot assessable
0/100 · Trend unavailable
Ratio history
| Ratio | 2021-03-31 | 2022-03-31 | 2023-03-31 | 2024-03-31 | 2025-12-31 |
|---|---|---|---|---|---|
| Equity ratio | - | - | 100.0 % | 100.0 % | 99.7 % |
| Current ratio | - | - | - | - | - |
| Operating profit margin | - | - | - | - | - |
Registry status and identifiers
Current registry information and identifiers based on YTJ data.
YTJ statusValid
Trade RegisterRegistered
Business ID0204561-6
EU IDFIFPRO.0204561-6
MunicipalityMasku
Current registered entries
1978-01-13Registered in Patent and Registration Office (Trade Register)
1978-06-30Registered in Tax Administration (Tax Administration)
Responsible people
Public role relationships materialized from source observations.
Kuustonen Karri TuomasToimitusjohtajaSources: 4 · Confidence: 78%
Kuustonen Jarno SamuliVarsinainen jäsenSources: 4 · 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
B1
StableMauri Kuustonen Oy
Grade downgradedA3 → B1 · new analysis 2026-10-18
69/100
Medium
Limited financial evidenceRegistry and statistics based
Supporting factors
- Company context reduces the weight of an isolated financial signal
- Active registered status
- A newer financial statement filing has been reported
Risk factors to note
- Sufficient structured financial metrics are not available
Automatic assessment developmentChanges are derived from evidence differences between persisted automatic assessments.
2 assessmentsB1
2026-10-1869/100 · v0.15
A3 → B1 · -4 points- Assessment confidence: Low → Medium.
- Evidence quality: Usable financial evidence → Limited financial evidence.
- New risk factor: Sufficient structured financial metrics are not available.
A3
2026-10-0373/100 · v0.14
Oldest retained automatic assessment in this comparisonB1
2026-10-18
open-risk-grade-v0.15
The grade uses registry, industry, and regional signals because sufficient source-backed financial metrics are not available for a Tier 1 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 riskmedium
62/100
Industry context is medium based on normalized open statistical inputs.
Age and continuityVakiintunut
90/100
The company has about 48 years of registry continuity.
Registry and status signalsSeurattava
71/100
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.
Registry timeline
Trade register notifications shown on a timeline.
16 register eventsLatest event: 2026-04-02
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
Mauri Kuustonen Oy shows public core facts. A company representative can claim the profile, update public information, and access owner tools.