Arkkitehdit Osara Oy

OYActive

Y-tunnus 0534451-5Huvilakatu 4A-41, 00150 HelsinkiArchitectural activities· NACE 7111Est. 1983 · 43 years old— employees

Overview Financials People & ownership Related companies

Arkkitehdit Osara Oy is a Finnish OY based in Helsinki, operating in the Architectural activities sector. Incorporated in 1983, the company reported revenue of EUR 626K in its latest annual filing.

Revenue 2025

EUR 626K

+19% vs 2024

EBITDA margin

4.0%

+156% vs 2024

Net profit 2025

EUR 19K

+143% vs 2024

Key ratios

See full ratios →

75.6%

This company

20212025

3.1×

This company

20212025

16.9%

This company

20212025

EBITDA — year on year

EUR millions

Key figures

Annual report 2025

Revenue	EUR 626K	+19%
EBITDA	EUR 25K	+156%
Net profit	EUR 19K	+143%
Total assets	EUR 114K	+55%
Equity	EUR 86K	+29%
Employees	—	—

Contact

Address

Huvilakatu 4A-41, 00150 Helsinki

Phone

+3580504121060

tiina.havumaki@osara-ark.fi

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Frequently asked questions

What is the Y-tunnus number of Arkkitehdit Osara Oy?

Arkkitehdit Osara Oy is registered with PRH / YTJ under Y-tunnus 0534451-5.

What is the revenue of Arkkitehdit Osara Oy?

Arkkitehdit Osara Oy reported revenue of EUR 626K in 2025.

Who is the CEO of Arkkitehdit Osara Oy?

Tiina Katriina Havumäki is the CEO of Arkkitehdit Osara Oy, in role since 2018.

Who is the chairman of Arkkitehdit Osara Oy?

Erkki Olavi Pirttilä chairs the board of Arkkitehdit Osara Oy, in role since 2018.

Where is Arkkitehdit Osara Oy headquartered?

Arkkitehdit Osara Oy's registered address is Huvilakatu 4-A1.

Arkkitehdit Osara Oy

Key ratios

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Arkkitehdit Osara Oy

Key ratios

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Arkkitehdit Osara Oy