Business profile

JN-Rakennustekniikka Oy

JN-Rakennustekniikka Oy's registered office is Turku. It is a limited company. The company was established on 1976-05-21. It operates in the industry of other engineering design and technical consultancy incidental to building construction. In its latest retained statement for 2022-06-30, revenue was €0 and operating profit was -€769.

Claim profileContact details
Business ID 0133221-8ValidUnclaimed company profile

Trusted core data

Public company details from the trade register.

Business ID
0133221-8
Sector
Other engineering design and technical consultancy incidental to building construction
Municipality
Turku
Company form
Limited company
Registration date
1976-05-21
Business ID registration date
1978-03-15
Business status
Valid
Profile ownership
Unclaimed company profile

Contact and location summary

Visiting address: Urusvuorenkatu 3, 20360, Turku

Postal address: Vanha Turuntie 280, 24910, Halikko As

Phone: +358504372824Source observation

Email: [email protected]Source observation

Website: https://kaip.fiSource observation

People and decision-makers

Nieminen Jari JuhaniToimitusjohtaja

About JN-Rakennustekniikka Oy

Financial position and key figures for the company.

JN-Rakennustekniikka Oy's location municipality is Turku. It is a limited company. The company was established on 1976-05-21. It operates in the industry of other engineering design and technical consultancy incidental to building construction. In its latest retained statement for 2022-06-30, revenue was €0 and operating profit was -€769. The latest retained financial statement for 2022-06-30 shows revenue of €0 and profit for the financial year of -€1,075. Based on the latest retained statement, revenue growth was -100.0%, operating margin was not currently available, and equity ratio was -769.1%.

Auxiliary business names

Public alternate names materialized from source observations.

Lapin Tekninen IsännöintiTampereen Tekninen IsännöintiTekninen Isännöinti uusimaaTurun Tekninen Isännöinti

Financial highlights

Key figures from the latest financial period.

Latest financial period

2022-06-30

Imported periods0
PRH parsed0
Profile sourceEnriched source observation
Derived indicators
Revenue growth-100.0%
Equity ratio-769.1%
Revenue€0+€100 (+100.0%) vs previous periodPrevious: -€100
Operating profit (loss)-€769+€116 (+13.1%) vs previous periodPrevious: -€885
Profit (loss) for the financial year-€1,075+€595 (+35.6%) vs previous periodPrevious: -€1,670
Assets€1,916-€833 (-30.3%) vs previous periodPrevious: €2,749
Balance-sheet contextLatest financial period
Profit before taxes-€1,075Previous: -€1,670
Employees6Previous: No comparison value
Revenue trend5 periods
€196,321
2018-06-30
€109,628
2019-06-30
€1,483
2020-06-30
-€100
2021-06-30
€0
2022-06-30
Operating profit (loss) trend5 periods
-€53,457
2018-06-30
€77,669
2019-06-30
-€4,851
2020-06-30
-€885
2021-06-30
-€769
2022-06-30
Profit (loss) for the financial year trend5 periods
-€57,575
2018-06-30
€59,005
2019-06-30
-€6,315
2020-06-30
-€1,670
2021-06-30
-€1,075
2022-06-30
Assets trend5 periods
€25,793
2018-06-30
€48,216
2019-06-30
€10,426
2020-06-30
€2,749
2021-06-30
€1,916
2022-06-30

Financial ratios

Financial ratios based on financial statement data. Source: Rikastettu lähdehavainto.

Equity ratioWeak
0/100 · Declining
-769.1 %2021-06-30: -497.0 %
Current ratioNot assessable
0/100 · Trend unavailable
Not available2021-06-30: Ei saatavilla
Operating profit marginNot assessable
0/100 · Trend unavailable
Not available2021-06-30: 885.0 %
Ratio history
Ratio2018-06-302019-06-302020-06-302021-06-302022-06-30
Equity ratio-250.8 %-11.8 %-115.0 %-497.0 %-769.1 %
Current ratio-----
Operating profit margin-27.2 %35.4 %-326.9 %885.0 %-

Registry status and identifiers

Current registry information and identifiers based on YTJ data.

YTJ statusValid
Trade RegisterRegistered
Business ID0133221-8
VAT IDFI01332218
EU IDFIFPRO.0133221-8
MunicipalityTurku
Current registered entries
1976-05-21Registered in Patent and Registration Office (Trade Register)
1978-03-15Registered in Tax Administration (Tax Administration)
2025-06-01VAT-liable for business activity in Tax Administration (VAT Register)
2025-06-02Registered in Tax Administration (Prepayment Register)
2025-07-01Registered in Tax Administration (Employer Register)

Responsible people

Public role relationships materialized from source observations.

Nieminen Jari JuhaniToimitusjohtajaSources: 5 · Confidence: 78%
Nieminen Jari JuhaniVarsinainen jäsenSources: 2 · Confidence: 78%
Nieminen Satu KristiinaVarajäsenSources: 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
C
Elevated riskJN-Rakennustekniikka Oy
Grade unchangedC · new analysis 2026-10-20
Model score39/100
Assessment confidenceMedium
Evidence qualityLimited financial evidenceRegistry and statistics based
Financial trajectoryFinancial development is mostly stable or mixed.
4 comparable periods
RevenueVolatile
ProfitabilityNot enough history
SolvencyDeteriorating · 3 consecutive periods
LiquidityNot enough history
Supporting factors
  • Active registered status
  • A newer financial statement filing has been reported
  • Long registry continuity
Risk factors to note
  • Sufficient structured financial metrics are not available
Rating historyAutomatic assessment developmentChanges are derived from evidence differences between persisted automatic assessments.
2 assessments
C
2026-10-2039/100 · v0.15
C → C
C
2026-10-0339/100 · v0.14
Oldest retained automatic assessment in this comparison
Automatic model gradeC
Automatic model snapshot2026-10-20
Automatic model versionopen-risk-grade-v0.15
Registry and statistics based

The grade uses registry, industry, and regional signals because sufficient source-backed financial metrics are not available for a Tier 1 assessment.

A serious financial risk signal affects this grade. Review the profile financial indicators as well.

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 riskmedium
62/100

Industry context is medium based on normalized open statistical inputs.

Age and continuityVakiintunut
97/100

The company has about 50 years of registry continuity.

Registry and status signalsSeurattava
74/100

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
20 Oct 2026 · BUSINESS.fi / Opterom LuottoluokitusAutomatic grade C.
Risk grade updatedRisk gradeEvidence verified
3 Oct 2026 · BUSINESS.fi / Opterom LuottoluokitusAutomatic grade C.

Registry timeline

Trade register notifications shown on a timeline.

20 register eventsLatest event: 2025-09-24

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

JN-Rakennustekniikka Oy shows public core facts. A company representative can claim the profile, update public information, and access owner tools.