OOSIS oy

OYActive

Y-tunnus 1981181-5Opastinsilta 8B, 00520 HelsinkiComputer consultancy and computer facilities management activities · NACE 6220Est. 2005 · 20 years old— employeeswww.oosis.fi

Overview Financials People & ownership Related companies

OOSIS oy is a Finnish OY based in Helsinki, operating in the Computer consultancy and computer facilities management activities sector. Incorporated in 2005, the company reported revenue of EUR 0 in its latest annual filing.

Revenue 2025

EUR 0

EBITDA margin

—

+276% vs 2024

Equity ratio

66.3%

Financial strength

Net profit 2025

EUR 16K

+425% vs 2024

Key ratios

See full ratios →

66.3%

1.8×

29.3%

EBITDA — year on year

EUR millions

Key figures

Annual report 2025

Revenue	EUR 0	—
EBITDA	EUR 17K	+276%
Net profit	EUR 16K	+425%
Total assets	EUR 56K	-14%
Equity	EUR 37K	+244%
Employees	—	—

Contact

Address

Opastinsilta 8B, 00520 Helsinki

Phone

+3580440881081

info@oosis.fi

Website

www.oosis.fi

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Frequently asked questions

What is the Y-tunnus number of OOSIS oy?

OOSIS oy is registered with PRH / YTJ under Y-tunnus 1981181-5.

Who is the CEO of OOSIS oy?

Esko Antero Jantunen is Deputy Member of OOSIS oy, in role since 2015.

Where is OOSIS oy headquartered?

OOSIS oy's registered address is Opastinsilta 8-B.

OOSIS oy

Key ratios

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on OOSIS oy

Key ratios

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on OOSIS oy