Tammas-Marine Oy

OYActive

Y-tunnus 0869315-5Lt. 10, 31600 JokioinenBuilding of civilian ships and floating structures · NACE 3011Est. 19918 employees

Overview Financials People & ownership Related companies

Tammas-Marine Oy is a Finnish OY based in Jokioinen, operating in the Building of civilian ships and floating structures sector. Incorporated in 1991, the company has 8 employees and reported revenue of EUR 715K in its latest annual filing.

Revenue 2025

EUR 715K

-21% vs 2024

EBITDA margin

1.8%

-80% vs 2024

Equity ratio

83.5%

Financial strength

Net profit 2025

EUR 17K

-28% vs 2024

EBITDA — year on year

EUR millions

Key figures

Annual report 2025

Revenue	EUR 715K	-21%
EBITDA	EUR 13K	-80%
Net profit	EUR 17K	-28%
Total assets	EUR 374K	-7%
Equity	EUR 313K	-3%
Employees	8	—

Contact

Address

Lt. 10, 31600 Jokioinen

Phone

+3580405002808

info@tammas-marine.fi

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Frequently asked questions

What is the Y-tunnus number of Tammas-Marine Oy?

Tammas-Marine Oy is registered with PRH / YTJ under Y-tunnus 0869315-5.

What is the revenue of Tammas-Marine Oy?

Tammas-Marine Oy reported revenue of EUR 715K in 2025.

How many employees does Tammas-Marine Oy have?

Tammas-Marine Oy employs 8 people as of the latest annual report.

Who is the CEO of Tammas-Marine Oy?

Juha Olavi Koponen is Audit of Tammas-Marine Oy, in role since 2014.

Who is the chairman of Tammas-Marine Oy?

Juha Matias Aaltonen chairs the board of Tammas-Marine Oy, in role since 2014.

Where is Tammas-Marine Oy headquartered?

Tammas-Marine Oy's registered address is Lt. 10.

Tammas-Marine Oy

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Tammas-Marine Oy

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Tammas-Marine Oy