Business profile

Oleron Oy

Oleron Oy's registered office is Turku. It is a limited company. The company was established on 1982-12-16. It operates in the industry of construction of residential and non-residential buildings. In its latest retained statement for 2025-09-30, revenue was €39,221 and operating profit was €22,697.

Claim profile Contact details

Business ID 0502865-1ValidUnclaimed company profile

Trusted core data

Public company details from the trade register.

Business ID: 0502865-1
Sector: Construction of residential and non-residential buildings
Municipality: Turku
Company form: Limited company
Registration date: 1982-12-16
Business ID registration date: 1983-03-16
Business status: Valid
Profile ownership: Unclaimed company profile

Contact and location summary

Visiting address: Rihvelikuja 2 A 6, 20900, Turku

Phone: +358400821005Source observation

People and decision-makers

Gröndahl Jukka JuhaniPuheenjohtaja

Gröndahl Irja ElisabetVarsinainen jäsen

Gröndahl Mikko JuhaniVarajäsen

About Oleron Oy

Financial position and key figures for the company.

Oleron Oy's location municipality is Turku. It is a limited company. The company was established on 1982-12-16. It operates in the industry of construction of residential and non-residential buildings. In its latest retained statement for 2025-09-30, revenue was €39,221 and operating profit was €22,697. The latest retained financial statement for 2025-09-30 shows revenue of €39,221 and profit for the financial year of €18,194. Based on the latest retained statement, revenue growth was -67.5%, operating margin was +57.9%, and equity ratio was +99.9%.

Extended business activity

A longer directory- or registry-backed activity description that complements the short registry industry label.

Yhtiön toimialana on rakentaminen, rakennuttaminen sekä kiinteistöjen, osakkeiden, osuuksien ja arvopaperien omistaminen, hallinta ja kauppa.

Financial highlights

Key figures from the latest financial period.

Open full statement

Latest financial period

2025-09-30

Imported periods5

PRH parsed5

Profile sourcePRH/XBRL financial statement

Derived indicators

Revenue growth-67.5%

Operating margin57.9%

Equity ratio99.9%

Revenue€39,221-€81,281 (-67.5%) vs previous periodPrevious: €120,502

Operating profit (loss)€22,697-€55,231 (-70.9%) vs previous periodPrevious: €77,928

Profit (loss) for the financial year€18,194-€44,658 (-71.1%) vs previous periodPrevious: €62,852

Assets€720,495-€52,958 (-6.8%) vs previous periodPrevious: €773,453

Balance-sheet contextLatest financial period

Inventory€708,003Previous: €716,954

Cash and bank€7,424Previous: €55,368

Retained earnings€693,369Previous: €691,549

Equity€720,063Previous: €762,901

Liabilities€432Previous: €10,552

Current assets€720,016Previous: €772,974

Current liabilities€432Previous: €10,552

Revenue trend5 periods

€619,541

2021-09-30

€172,577

2022-09-30

€24,675

2023-09-30

€120,502

2024-09-30

€39,221

2025-09-30

Operating profit (loss) trend5 periods

€248,466

2021-09-30

€26,640

2022-09-30

€43,438

2023-09-30

€77,928

2024-09-30

€22,697

2025-09-30

Profit (loss) for the financial year trend5 periods

€198,010

2021-09-30

€22,120

2022-09-30

€35,546

2023-09-30

€62,852

2024-09-30

€18,194

2025-09-30

Assets trend5 periods

€872,659

2021-09-30

€788,996

2022-09-30

€761,271

2023-09-30

€773,453

2024-09-30

€720,495

2025-09-30

Additional financial figures

More company financial figures alongside PRH financial statements.

Metric	2024	2023	2022	2021	2020	2019	2018	2017	2016
Taxable income	€78,668	€43,834	€26,640	€248,298	€85,729	€50,691	€44,269	€49,553	€47,386
Income tax	€15,848	€8,670	€5,251	€49,595	€17,008	€9,113	€7,219	€7,892	€8,655
Income after tax	€62,820	€35,164	€21,389	€198,703	€68,722	€41,578	€37,049	€41,660	€38,731

Financial ratios

Financial ratios based on financial statement data. Source: PRH/XBRL-tilinpäätös.

Equity ratioGood

100/100 · Improving

99.9 %2024-09-30: 98.6 %

Current ratioGood

100/100 · Improving

1657.69x2024-09-30: 73.19x

Operating profit marginGood

100/100 · Declining

57.9 %2024-09-30: 64.7 %

Ratio history

Ratio	2021-09-30	2022-09-30	2023-09-30	2024-09-30	2025-09-30
Equity ratio	95.5 %	99.9 %	100.0 %	98.6 %	99.9 %
Current ratio	21.96x	1428.33x	2060.05x	73.19x	1657.69x
Operating profit margin	40.1 %	15.4 %	176.0 %	64.7 %	57.9 %

Registry status and identifiers

Current registry information and identifiers based on YTJ data.

YTJ statusValid

Trade RegisterRegistered

Business ID0502865-1

EU IDFIFPRO.0502865-1

MunicipalityTurku

Current registered entries

1982-12-16Registered in Patent and Registration Office (Trade Register)

1983-03-16Registered in Tax Administration (Tax Administration)

Responsible people

Public role relationships materialized from source observations.

Gröndahl Jukka JuhaniPuheenjohtajaSources: 2 · Confidence: 78%

Gröndahl Irja ElisabetVarsinainen jäsenSources: 2 · Confidence: 78%

Gröndahl Mikko JuhaniVarajäsenSources: 1 · Confidence: 78%

Gröndahl-Köpilä Eva HellikkiVarajäsenSources: 1 · Confidence: 78%

Leino Mika OlaviTilintarkastajaSources: 1 · 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

GoodOleron Oy

Grade unchangedA3 · new analysis 2026-11-05

Model score76/100

Assessment confidenceHigh

Evidence qualityStrong financial evidenceFinancial data included

Financial trajectoryFinancial development has been volatile across multiple domains.

3 comparable periods

RevenueVolatile

ProfitabilityDeteriorating · 2 consecutive periods

SolvencyStable

LiquidityVolatile

Peer comparisonSame industry, size and age groupDescriptive comparison – does not change the model score.

113 peers

Solvency96%

Better than 96% of peers

Profitability98%

Better than 98% of peers

Liquidity100%

Better than 100% of peers

Revenue growth20%

Below 80% of peers

Financial statement reporting patternRegularBased on observed PRH financial period end and registration dates. This descriptive evidence does not change the v0.14 score.

4 observed filings

Latest registration lag126 days after period end

Typical registration lag136 days after period end

Annual continuity4 consecutive periods

Supporting factors

Strong equity ratio
Strong operating profitability
Healthy short-term liquidity

Risk factors to note

Sharp year-over-year revenue drop
Material volatility across multiple financial domains
Elevated industry distress context

Rating historyAutomatic assessment developmentChanges are derived from evidence differences between persisted automatic assessments.

6 assessments

2026-11-0576/100 · v0.15

A3 → A3

2026-11-02 07:5776/100 · v0.15

A3 → A3

Evidence strengthened: another PRH/XBRL statement was added to the financial series (2025-09-30).

2026-10-1880/100 · v0.15

A2 → A2

2026-10-04 05:5780/100 · v0.14

B2 → A2 · +22 points

Evidence strengthened: a PRH/XBRL financial statement was added to the assessment (2025-09-30).
Evidence quality: Registry and statistical evidence → Usable financial evidence.

Automatic model gradeA3

Automatic model snapshot2026-11-05

Automatic model versionopen-risk-grade-v0.15

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 riskhigh

25/100

Industry context is high based on normalized open statistical inputs.

Age and continuityVakiintunut

90/100

The company has about 43 years of registry continuity.

Registry and status signalsSeurattava

73/100

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