Sirenius Oy

OYActive

Y-tunnus 1000369-4Härtsiläntie 91B, 03430 JokikuntaEngineering activities and related technical consultancy · NACE 7112Est. 1995 · 31 years old1 employees

Overview Financials People & ownership Related companies

Sirenius Oy is a Finnish OY based in Jokikunta, operating in the Civil engineering design and technical consultancy sector. Incorporated in 1995, the company has 1 employee and reported revenue of EUR 25K in its latest annual filing.

Revenue 2026

EUR 25K

+25% vs 2025

EBITDA margin

5.5%

-81% vs 2025

Equity ratio

99.6%

Financial strength

Net profit 2026

EUR -191

-105% vs 2025

Key ratios

See full ratios →

99.6%

210.1×

-1.1%

EBITDA — year on year

EUR millions

Key figures

Annual report 2026

Revenue	EUR 25K	+25%
EBITDA	EUR 1K	-81%
Net profit	EUR -191	-105%
Total assets	EUR 18K	-13%
Equity	EUR 18K	-9%
Employees	1	—

Contact

Address

Härtsiläntie 91B, 03430 Jokikunta

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Frequently asked questions

What is the Y-tunnus number of Sirenius Oy?

Sirenius Oy is registered with PRH / YTJ under Y-tunnus 1000369-4.

What is the revenue of Sirenius Oy?

Sirenius Oy reported revenue of EUR 25K in 2026.

How many employees does Sirenius Oy have?

Sirenius Oy employs 1 people as of the latest annual report.

Who is the CEO of Sirenius Oy?

Noora Kristiina Sirenius is Deputy Member of Sirenius Oy, in role since 2022.

Who is the chairman of Sirenius Oy?

Marko Pentti Sirenius chairs the board of Sirenius Oy, in role since 2002.

Where is Sirenius Oy headquartered?

Sirenius Oy's registered address is Härtsiläntie 91-B.

Sirenius Oy

Key ratios

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Sirenius Oy

Key ratios

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Sirenius Oy