Risk grade updatedRisk gradeEvidence verified
20 Oct 2026 · BUSINESS.fi / Opterom LuottoluokitusAutomatic grade B2.Business profile
Rakennustoimisto Köykkä Oy
Rakennustoimisto Köykkä Oy's registered office is Lempäälä. It is a limited company. The company was established on 1985-01-17. It operates in the industry of construction of residential and non-residential buildings. In its latest retained statement for 2025-12-31, revenue was €49 and operating profit was €36,738.
Business ID 0576874-8ValidUnclaimed company profile
Trusted core data
Public company details from the trade register.
- Business ID
- 0576874-8
- Sector
- Construction of residential and non-residential buildings
- Municipality
- Lempäälä
- Company form
- Limited company
- Registration date
- 1985-01-17
- Business ID registration date
- 1985-01-07
- Business status
- Valid
- Profile ownership
- Unclaimed company profile
Contact and location summary
Visiting address: YLISITRANTIE 25, 37500, Lempäälä
Phone: +358405044555Source observation
Email: [email protected]Source observation
People and decision-makers
Köykkä Eino JuhaniVarsinainen jäsen
Kärki Aini AnneliVarajäsen
About Rakennustoimisto Köykkä Oy
Financial position and key figures for the company.
Rakennustoimisto Köykkä Oy's location municipality is Lempäälä. It is a limited company. The company was established on 1985-01-17. It operates in the industry of construction of residential and non-residential buildings. In its latest retained statement for 2025-12-31, revenue was €49 and operating profit was €36,738. Based on the latest retained statement, revenue growth was not currently available, operating margin was +74975.5%, and equity ratio was not currently available.
Extended business activity
A longer directory- or registry-backed activity description that complements the short registry industry label.
Yhtiön toimialana on rakennusurakoinnin, teräsrakenteiden valmistuksen sekä niiden rakennustarvikkeiden, koneiden ja laitteiden kaupan harjoittaminen. Yhtiö voi myös omistaa kiinteistöjä, maa-alueita ja muiden yhtiöiden osakkeita sekä harjoittaa niiden kauppaa ja vuokrausta.
Financial highlights
Key figures from the latest financial period.
Latest financial period
2025-12-31
0
0
Enriched source observation
Derived indicators
Operating margin74975.5%
Revenue€49Previous comparison not availablePrevious: No comparison value
Operating profit (loss)€36,738+€50,203 (+372.8%) vs previous periodPrevious: -€13,465
Balance-sheet contextLatest financial period
Employees12Previous: No comparison value
Revenue trend2 periods
€5,999
2021-12-31
€49
2025-12-31
Operating profit (loss) trend4 periods
€46,289
2021-12-31
€5,987
2022-12-31
-€13,465
2023-12-31
€36,738
2025-12-31
Profit (loss) for the financial year trend3 periods
€44,431
2021-12-31
€5,088
2022-12-31
-€14,718
2023-12-31
Assets trend3 periods
€397,507
2021-12-31
€335,984
2022-12-31
€230,526
2023-12-31
Financial ratios
Financial ratios based on financial statement data. Source: Rikastettu lähdehavainto.
Equity ratioNot assessable
0/100 · Trend unavailable
Current ratioNot assessable
0/100 · Trend unavailable
Operating profit marginGood
100/100 · Improving
Ratio history
| Ratio | 2021-12-31 | 2022-12-31 | 2023-12-31 | 2025-12-31 |
|---|---|---|---|---|
| Equity ratio | 12.9 % | 15.5 % | 14.4 % | - |
| Current ratio | - | - | - | - |
| Operating profit margin | 68.1 % | - | - | 74975.5 % |
Registry status and identifiers
Current registry information and identifiers based on YTJ data.
YTJ statusValid
Trade RegisterRegistered
Business ID0576874-8
VAT IDFI05768748
EU IDFIFPRO.0576874-8
MunicipalityLempäälä
Current registered entries
1985-01-07Registered in Tax Administration (Tax Administration)
1985-01-17Registered in Patent and Registration Office (Trade Register)
2025-11-01VAT-liable for agriculture and forestry in Tax Administration (VAT Register)
Responsible people
Public role relationships materialized from source observations.
Köykkä Eino JuhaniVarsinainen jäsenSources: 6 · Confidence: 78%
Kärki Aini AnneliVarajäsenSources: 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
SatisfactoryRakennustoimisto Köykkä Oy
Grade unchangedB2 · new analysis 2026-10-20
55/100
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
- Elevated industry distress context
- Sufficient structured financial metrics are not available
Automatic assessment developmentChanges are derived from evidence differences between persisted automatic assessments.
2 assessmentsB2
2026-10-2055/100 · v0.15
B2 → B2B2
2026-10-1655/100 · v0.14
Oldest retained automatic assessment in this comparisonB2
2026-10-20
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 riskhigh
25/100
Industry context is high based on normalized open statistical inputs.
Age and continuityVakiintunut
90/100
The company has about 41 years of registry continuity.
Registry and status signalsSeurattava
61/100
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
16 Oct 2026 · BUSINESS.fi / Opterom LuottoluokitusAutomatic grade B2.Registry timeline
Trade register notifications shown on a timeline.
10 register eventsLatest event: 2026-03-28
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
Rakennustoimisto Köykkä Oy shows public core facts. A company representative can claim the profile, update public information, and access owner tools.