Siren Arkkitehdit Oy

OYActive

Y-tunnus 3338422-3Tiirasaarentie 35, 00200 HelsinkiArchitectural activities · NACE 7111Est. 202316 employees

Overview Financials People & ownership Related companies

Siren Arkkitehdit Oy is a Finnish OY based in Helsinki, operating in the Architectural activities sector. Incorporated in 2023, the company has 16 employees and reported revenue of EUR 0 in its latest annual filing.

Revenue 2025

EUR 0

EBITDA margin

—

-685% vs 2025

Equity ratio

-12.4%

Financial strength

Net profit 2025

EUR -574K

-851% vs 2025

EBITDA — year on year

EUR millions

Key figures

Annual report 2025

Revenue	EUR 0	—
EBITDA	EUR -574K	-685%
Net profit	EUR -574K	-851%
Total assets	EUR 546K	+12%
Equity	EUR -68K	-184%
Employees	16	—

Contact

Address

Tiirasaarentie 35, 00200 Helsinki

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Frequently asked questions

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

Siren Arkkitehdit Oy is registered with PRH / YTJ under Y-tunnus 3338422-3.

How many employees does Siren Arkkitehdit Oy have?

Siren Arkkitehdit Oy employs 16 people as of the latest annual report.

Who is the CEO of Siren Arkkitehdit Oy?

Marja-Riitta Elomaa is Confidential Clerk of Siren Arkkitehdit Oy, in role since 2023.

Who is the chairman of Siren Arkkitehdit Oy?

Stefan Nyström chairs the board of Siren Arkkitehdit Oy, in role since 2025.

Where is Siren Arkkitehdit Oy headquartered?

Siren Arkkitehdit Oy's registered address is Tiirasaarentie 35.

Siren Arkkitehdit Oy

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Siren Arkkitehdit Oy

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Siren Arkkitehdit Oy