Risk grade updatedRisk gradeEvidence verified
17 Oct 2026 · BUSINESS.fi / Opterom LuottoluokitusAutomatic grade B1.Business profile
Aputyö Mustalammi Oy
Aputyö Mustalammi Oy's registered office is Tampere. It is a limited company. The company was established on 2011-10-06. It operates in the industry of construction of residential and non-residential buildings. In its latest retained statement for 2025-12-31, revenue was €75,372 and operating profit was -€404.
Business ID 2430902-9ValidUnclaimed company profile
Trusted core data
Public company details from the trade register.
- Business ID
- 2430902-9
- Sector
- Construction of residential and non-residential buildings
- Municipality
- Tampere
- Company form
- Limited company
- Registration date
- 2011-10-06
- Business ID registration date
- 2011-09-22
- Business status
- Valid
- Profile ownership
- Unclaimed company profile
Contact and location summary
Visiting address: Tuularinkatu 7 D 17, 33300, Tampere
Phone: +358405963968Source observation
Email: [email protected]Source observation
People and decision-makers
Mustalammi Make JuhaniVarsinainen jäsen
Mustalammi Jere Juhani SamuelVarajäsen
About Aputyö Mustalammi Oy
Financial position and key figures for the company.
Aputyö Mustalammi Oy's location municipality is Tampere. It is a limited company. The company was established on 2011-10-06. It operates in the industry of construction of residential and non-residential buildings. In its latest retained statement for 2025-12-31, revenue was €75,372 and operating profit was -€404. The latest retained financial statement for 2025-12-31 shows revenue of €75,372 and profit for the financial year of -€778. Based on the latest retained statement, revenue growth was -26.2%, operating margin was -0.5%, and equity ratio was +87.6%.
Extended business activity
A longer directory- or registry-backed activity description that complements the short registry industry label.
Yhtiön toimiala on rakennussaneeraus ja muu laillinen liiketoiminta.
Financial highlights
Key figures from the latest financial period.
Latest financial period
2025-12-31
1
1
Combined source
Derived indicators
Revenue growth-26.2%
Operating margin-0.5%
Equity ratio87.6%
Balance-sheet contextLatest financial period
Other operating income€0Previous: €2,575
Cash and bank€71,216Previous: €71,598
Retained earnings€67,753Previous: €71,627
Profit before taxes-€777Previous: €2,827
Equity€69,475Previous: €76,353
Liabilities€9,855Previous: €17,578
Current assets€77,825Previous: €91,925
Current liabilities€9,855Previous: €7,429
Employees1Previous: 1
Revenue trend5 periods
€124,702
2021-12-31
€103,801
2022-12-31
€90,409
2023-12-31
€102,124
2024-12-31
€75,372
2025-12-31
Operating profit (loss) trend5 periods
€6,174
2021-12-31
€18,155
2022-12-31
€14,211
2023-12-31
€2,855
2024-12-31
-€404
2025-12-31
Profit (loss) for the financial year trend5 periods
€6,188
2021-12-31
€16,683
2022-12-31
€12,609
2023-12-31
€2,225
2024-12-31
-€778
2025-12-31
Assets trend5 periods
€97,887
2021-12-31
€100,505
2022-12-31
€109,689
2023-12-31
€93,931
2024-12-31
€79,330
2025-12-31
Financial ratios
Financial ratios based on financial statement data. Source: Yhdistetty lähde.
Equity ratioGood
100/100 · Improving
Current ratioGood
100/100 · Declining
Operating profit marginWeak
49/100 · Declining
Ratio history
| Ratio | 2021-12-31 | 2022-12-31 | 2023-12-31 | 2024-12-31 | 2025-12-31 |
|---|---|---|---|---|---|
| Equity ratio | 63.9 % | 73.9 % | 73.5 % | 81.3 % | 87.6 % |
| Current ratio | - | - | - | - | 7.23x |
| Operating profit margin | 5.0 % | 17.5 % | 15.7 % | 2.7 % | -0.5 % |
Registry status and identifiers
Current registry information and identifiers based on YTJ data.
YTJ statusValid
Trade RegisterRegistered
Business ID2430902-9
VAT IDFI24309029
EU IDFIFPRO.2430902-9
MunicipalityTampere
Current registered entries
2011-10-01VAT-liable for business activity in Tax Administration (VAT Register)
2011-10-01Registered in Tax Administration (Prepayment Register)
2011-10-06Registered in Patent and Registration Office (Trade Register)
2011-10-07Registered in Tax Administration (Tax Administration)
Responsible people
Public role relationships materialized from source observations.
Mustalammi Jere Juhani SamuelVarajäsenSources: 2 · Confidence: 78%
Mustalammi Make JuhaniVarsinainen jäsenSources: 5 · 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
StableAputyö Mustalammi Oy
Grade unchangedB1 · new analysis 2026-10-17
64/100
High
Strong financial evidenceFinancial data included
Financial development is mostly stable or mixed.
4 comparable periodsRevenueVolatile
SolvencyImproving · 2 consecutive periods
LiquidityNot enough history
Same industry, size and age groupDescriptive comparison – does not change the model score.
118 peersSolvency76%
Better than 76% of peers
Profitability43%
Below 57% of peers
Liquidity86%
Better than 86% of peers
Revenue growth32%
Below 68% 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 filings76 days after period end
76 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
2026-10-1764/100 · v0.15
B1 → B1B1
2026-10-10 16:0764/100 · v0.14
B1 → B1 · +4 points- Evidence strengthened: a PRH/XBRL financial statement was added to the assessment (2025-12-31).
- Assessment confidence: Medium → High.
- Evidence quality: Usable financial evidence → Strong financial evidence.
B1
2026-09-1560/100 · v0.14
B1 → B1- Revenue: Volatile
- Profitability: Deteriorating
- Solvency: Improving
B1
2026-09-1460/100 · v0.12
Oldest retained automatic assessment in this comparisonB1
2026-10-17
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 riskhigh
25/100
Industry context is high based on normalized open statistical inputs.
Age and continuityVakiintunut
80/100
The company has about 15 years of registry continuity.
Registry and status signalsVakaa
77/100
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 B1.Registry timeline
Trade register notifications shown on a timeline.
14 register eventsLatest event: 2026-03-17
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 2025-12-31.
This company profile has not been claimed yet
Aputyö Mustalammi Oy shows public core facts. A company representative can claim the profile, update public information, and access owner tools.