Oy Sigma Ab

OYDissolved

Y-tunnus 0202742-6Fabriksgatan 4A-46, 00140 HelsinkiBusiness and other management consultancy activities· NACE 7020Est. 1953 · 72 years old— employees

Overview Financials People & ownership Related companies

Oy Sigma Ab is a Finnish OY based in Helsinki, operating in the Business and other management consultancy activities sector. Incorporated in 1953, the company reported revenue of EUR 67K in its latest annual filing.

Revenue 2025

EUR 67K

-73% vs 2024

EBITDA margin

37.6%

-95% vs 2024

Net profit 2025

EUR 303K

+48% vs 2024

Key ratios

See full ratios →

99.8%

This company

20212025

45.9×

This company

20212025

16.8%

This company

20212025

EBITDA — year on year

EUR millions

Key figures

Annual report 2025

Revenue	EUR 67K	-73%
EBITDA	EUR 25K	-95%
Net profit	EUR 303K	+48%
Total assets	EUR 1,8M	+16%
Equity	EUR 1,8M	+16%
Employees	—	—

Contact

Address

Fabriksgatan 4A-46, 00140 Helsinki

Phone

+358405554681

cgronblom@gmail.com

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Frequently asked questions

What is the Y-tunnus number of Oy Sigma Ab?

Oy Sigma Ab is registered with PRH / YTJ under Y-tunnus 0202742-6.

What is the revenue of Oy Sigma Ab?

Oy Sigma Ab reported revenue of EUR 67K in 2025.

Who is the CEO of Oy Sigma Ab?

Berndt Casper Grönblom is the CEO of Oy Sigma Ab, in role since 2016.

Where is Oy Sigma Ab headquartered?

Oy Sigma Ab's registered address is Fabriksgatan 4-A6.

Oy Sigma Ab

Key ratios

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Oy Sigma Ab

Key ratios

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Oy Sigma Ab