Seidos Oy

OYActive

Y-tunnus 0808417-3Fabianinkatu 4B-411, 00130 HelsinkiBusiness and other management consultancy activities· NACE 7020Est. 1990 · 36 years old— employees

Overview Financials People & ownership Related companies

Seidos Oy is a Finnish OY based in Helsinki, operating in the Business and other management consultancy activities sector. Incorporated in 1990, the company reported revenue of EUR 273K in its latest annual filing.

Revenue 2025

EUR 273K

+15% vs 2024

EBITDA margin

197.2%

+21% vs 2024

Net profit 2025

EUR 13K

-24% vs 2024

Key ratios

See full ratios →

69.5%

This company

20212025

2.1×

This company

20212025

1.3%

This company

20212025

EBITDA — year on year

EUR millions

Key figures

Annual report 2025

Revenue	EUR 273K	+15%
EBITDA	EUR 538K	+21%
Net profit	EUR 13K	-24%
Total assets	EUR 1M	-10%
Equity	EUR 697K	+2%
Employees	—	—

Contact

Address

Fabianinkatu 4B-411, 00130 Helsinki

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Frequently asked questions

What is the Y-tunnus number of Seidos Oy?

Seidos Oy is registered with PRH / YTJ under Y-tunnus 0808417-3.

What is the revenue of Seidos Oy?

Seidos Oy reported revenue of EUR 273K in 2025.

Who is the CEO of Seidos Oy?

Jussi Petteri Viskari is the CEO of Seidos Oy, in role since 2014.

Where is Seidos Oy headquartered?

Seidos Oy's registered address is Fabianinkatu 4-B11.

Seidos Oy

Key ratios

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Seidos Oy

Key ratios

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Seidos Oy