Business profile

Rakennustoimisto O.Hämäläinen Oy

Rakennustoimisto O.Hämäläinen Oy's registered office is Helsingfors. It is a limited company. The company was established on 2014-09-23. It operates in the industry of other engineering design and technical consultancy incidental to building construction. In its latest retained statement for 2025-08-31, revenue was €360,071 and operating profit was €672,410.

Claim profileContact details
Business ID 2640459-9ValidUnclaimed company profile

Trusted core data

Public company details from the trade register.

Business ID
2640459-9
Sector
Other engineering design and technical consultancy incidental to building construction
Municipality
Helsingfors
Company form
Limited company
Registration date
2014-09-23
Business ID registration date
2014-09-08
Business status
Valid
Profile ownership
Unclaimed company profile
Data source
Public registry data

Contact and location summary

Visiting address: Valimotie 17-19, 00380, Helsingfors

Phone: +358408421400Source observation

Email: [email protected]Source observation

Website: https://www.rtoh.fiSource: registry data

People and decision-makers

Hämäläinen Olli ValtteriToimitusjohtaja

About Rakennustoimisto O.Hämäläinen Oy

Financial position and key figures for the company.

Rakennustoimisto O.Hämäläinen Oy's location municipality is Helsingfors. It is a limited company. The company was established on 2014-09-23. It operates in the industry of other engineering design and technical consultancy incidental to building construction. In its latest retained statement for 2025-08-31, revenue was €360,071 and operating profit was €672,410. Based on the latest retained statement, revenue growth was -87.8%, operating margin was +186.7%, and equity ratio was not currently available.

Auxiliary business names

Public alternate names materialized from source observations.

Byggnadskontor O. Hämäläinen Ab

Extended business activity

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

Yhtiön toimiala on rakentamispalvelut, konsultointi, urakointi sekä kaikki muu laillinen toiminta.

Financial highlights

Key figures from the latest financial period.

Latest financial period

2025-08-31

Imported periods4
PRH parsed2
Profile sourceCombined source
Derived indicators
Revenue growth-87.8%
Operating margin186.7%
Balance-sheet contextLatest retained period snapshot
Employees16Previous: 16
Revenue trend5 periods
€1,364,927
2021-08-31
€1,618,571
2022-08-31
€2,017,590
2023-08-31
€2,961,741
2024-08-31
€360,071
2025-08-31
Operating profit (loss) trend5 periods
€396,029
2021-08-31
€383,433
2022-08-31
€388,563
2023-08-31
€733,798
2024-08-31
€672,410
2025-08-31
Profit (loss) for the financial year trend4 periods
€311,565
2021-08-31
€281,800
2022-08-31
€295,030
2023-08-31
€615,115
2024-08-31
Assets trend5 periods
€918,613
2021-08-31
€1,100,787
2022-08-31
€1,072,855
2023-08-31
€904,326
2024-08-31
€941
2025-08-31

Financial ratios

Financial ratios based on financial statement data. Source: Yhdistetty lähde.

Equity ratioNot assessable
0/100 · Trend unavailable
Not available2024-08-31: 38.7 %
Current ratioNot assessable
0/100 · Trend unavailable
Not available2024-08-31: 0.56x
Operating profit marginGood
100/100 · Improving
186.7 %2024-08-31: 24.7 %
Ratio history
Ratio2021-08-312022-08-312023-08-312024-08-312025-08-31
Equity ratio66.2 %72.1 %66.2 %38.7 %-
Current ratio--0.38x0.56x-
Operating profit margin29.0 %23.5 %19.2 %24.7 %186.7 %

Registry status and identifiers

Verified registry memberships and identifiers from the latest retained YTJ snapshot.

YTJ statusValid
Trade RegisterRegistered
Business ID2640459-9
VAT IDFI26404599
EU IDFIFPRO.2640459-9
MunicipalityHelsingfors
Current registered entries
2014-09-02VAT-liable for business activity in Tax Administration (VAT Register)
2014-09-08Registered in Tax Administration (Prepayment Register)
2014-09-23Registered in Patent and Registration Office (Trade Register)
2014-10-01Registered in Tax Administration (Employer Register)
2014-10-01Registered in Tax Administration (Tax Administration)
2021-08-26VAT-obliged for the transfer of rights to use immovable property in Tax Administration (VAT Register)

Responsible people

Public role relationships materialized from source observations.

Hämäläinen Olli ValtteriToimitusjohtajaSources: 5 · Confidence: 78%
Hämäläinen Olli ValtteriVarsinainen jäsenSources: 2 · Confidence: 78%
Hämäläinen Liisa MaariaVarajäsenSources: 2 · Confidence: 78%
Kärnä Riku JuhaniTilintarkastajaSources: 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

Financial data includedNot a credit decision
B1
StableRakennustoimisto O.Hämäläinen Oy
Updated2026-08-29
ConfidenceLow
Score66/100

The grade can use open digital financial statement data together with registry signals.

Risk context

When open digital financial statements are unavailable, 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
80/100

The company has about 11 years of registry continuity.

Registry and status signalsVakaa
81/100

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

Registry timeline

Trade register notifications shown on a timeline.

16 register eventsLatest event: 2026-03-12

Financial statements availability

Available statement periods and links into the retained/parsible financial statement surfaces. Use the latest statement page for deeper line-item detail.

4 financial statement periodsLatest financial period: 2024-08-31

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

Rakennustoimisto O.Hämäläinen Oy shows public core facts. A company representative can claim the profile, update public information, and access owner tools.