Risk grade updatedRisk gradeEvidence verified
18 Oct 2026 · BUSINESS.fi / Opterom LuottoluokitusAutomatic grade B1.Business profile
Insinööritoimisto Lauri Marttala Oy
Insinööritoimisto Lauri Marttala Oy's registered office is Leppäkoski. It is a limited company. The company was established on 1980-09-26. It operates in the industry of plumbing, heat and air-conditioning installation. In its latest retained statement for 2025-12-31, revenue was €1,031 and operating profit was -€1,959.
Business ID 0369089-5ValidUnclaimed company profile
Trusted core data
Public company details from the trade register.
- Business ID
- 0369089-5
- Sector
- Plumbing, heat and air-conditioning installation
- Municipality
- Leppäkoski
- Company form
- Limited company
- Registration date
- 1980-09-26
- Business ID registration date
- 1980-11-19
- Business status
- Valid
- Profile ownership
- Unclaimed company profile
Contact and location summary
Visiting address: Haukankalliontie 29, 12380, Leppäkoski
About Insinööritoimisto Lauri Marttala Oy
Financial position and key figures for the company.
Insinööritoimisto Lauri Marttala Oy's location municipality is Leppäkoski. It is a limited company. The company was established on 1980-09-26. It operates in the industry of plumbing, heat and air-conditioning installation. In its latest retained statement for 2025-12-31, revenue was €1,031 and operating profit was -€1,959. The latest retained financial statement for 2025-12-31 shows revenue of €1,031 and profit for the financial year of €15,885. Based on the latest retained statement, revenue growth was +6.2%, operating margin was -190.1%, and equity ratio was +95.9%.
Financial highlights
Key figures from the latest financial period.
Latest financial period
2025-12-31
1
1
PRH/XBRL financial statement
Derived indicators
Revenue growth6.2%
Operating margin-190.1%
Equity ratio95.9%
Balance-sheet contextLatest financial period
Cash and bank€10,069Previous: €2,842
Retained earnings€4,395Previous: €3,574
Equity€22,803Previous: €6,918
Liabilities€966Previous: €0
Current assets€23,491Previous: €5,842
Current liabilities€966Previous: €0
Financial ratios
Financial ratios based on financial statement data. Source: PRH/XBRL-tilinpäätös.
Equity ratioGood
100/100 · Declining
Current ratioGood
100/100 · Trend unavailable
Operating profit marginWeak
0/100 · Declining
Registry status and identifiers
Current registry information and identifiers based on YTJ data.
YTJ statusValid
Trade RegisterRegistered
Business ID0369089-5
EU IDFIFPRO.0369089-5
MunicipalityLeppäkoski
Current registered entries
1980-09-26Registered in Patent and Registration Office (Trade Register)
1980-11-19Registered in Tax Administration (Tax Administration)
2015-04-16Registered in Tax Administration (Prepayment Register)
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
StableInsinööritoimisto Lauri Marttala Oy
Grade unchangedB1 · new analysis 2026-10-18
65/100
Medium
Usable financial evidenceFinancial data included
Same industry, size and age groupDescriptive comparison – does not change the model score.
194 peersSolvency82%
Better than 82% of peers
Profitability8%
Below 92% of peers
Liquidity89%
Better than 89% of peers
Limited evidenceBased on observed PRH financial period end and registration dates. This descriptive evidence does not change the v0.14 score.
1 observed filings134 days after period end
134 days after period end
1 consecutive periods
Supporting factors
- Strong equity ratio
- Healthy short-term liquidity
- Company context reduces the weight of an isolated financial signal
Risk factors to note
- Negative profitability or net result
- Elevated industry distress context
Automatic assessment developmentChanges are derived from evidence differences between persisted automatic assessments.
5 assessmentsB1
2026-10-1865/100 · v0.15
B1 → B1B1
2026-10-04 06:1365/100 · v0.14
B1 → B1 · +3 points- Evidence strengthened: a PRH/XBRL financial statement was added to the assessment (2025-12-31).
- Evidence quality: Registry and statistical evidence → Usable financial evidence.
B1
2026-09-1562/100 · v0.14
B2 → B1 · +4 points- Assessment confidence: Low → Medium.
- Evidence quality: Registry and statistical evidence → Registry and statistical evidence.
- New risk factor: Sufficient structured financial metrics are not available.
B2
2026-09-1458/100 · v0.12
Oldest retained automatic assessment in this comparisonB1
2026-10-18
open-risk-grade-v0.15
The grade can use open digital financial statement data together with registry signals.
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
38/100
Industry context is elevated based on normalized open statistical inputs.
Age and continuityVakiintunut
90/100
The company has about 46 years of registry continuity.
Registry and status signalsVakaa
75/100
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
15 Sept 2026 · BUSINESS.fi / Opterom LuottoluokitusAutomatic grade B1.Risk grade updatedRisk gradeEvidence verified
14 Sept 2026 · BUSINESS.fi / Opterom LuottoluokitusAutomatic grade B2.Registry timeline
Trade register notifications shown on a timeline.
17 register eventsLatest event: 2026-04-12
Financial statements availability
Available financial statement periods and PRH source filings.
1 financial statement periodsLatest financial period: 2025-12-31
Profile source and ownership
Profile based on public registry data
BUSINESS.fi has created this profile from public company information. Source data updated 2026-04-13.
This company profile has not been claimed yet
Insinööritoimisto Lauri Marttala Oy shows public core facts. A company representative can claim the profile, update public information, and access owner tools.