Widenius, Sederholm & Someri Oy Ab

OYActive

Y-tunnus 0115154-8Pl 1037, 00101 HelsinkiAccounting, bookkeeping and auditing activities; tax consultancy · NACE 6920Est. 1948— employees

Overview Financials People & ownership Related companies

Widenius, Sederholm & Someri Oy Ab is a Finnish OY based in Helsinki, operating in the Auditing activities sector. Incorporated in 1948, the company reported revenue of EUR 0 in its latest annual filing.

Revenue 2025

EUR 0

EBITDA margin

—

Equity ratio

100.0%

Financial strength

Net profit 2025

EUR 0

+100% vs 2024

EBITDA — year on year

EUR millions

Key figures

Annual report 2025

Revenue	EUR 0	—
EBITDA	EUR 0	—
Net profit	EUR 0	+100%
Total assets	EUR 21K	+0%
Equity	EUR 21K	+0%
Employees	—	—

Contact

Address

Pl 1037, 00101 Helsinki

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Frequently asked questions

What is the Y-tunnus number of Widenius, Sederholm & Someri Oy Ab?

Widenius, Sederholm & Someri Oy Ab is registered with PRH / YTJ under Y-tunnus 0115154-8.

Who is the CEO of Widenius, Sederholm & Someri Oy Ab?

Timo Teemu Edvard Helle is Audit of Widenius, Sederholm & Someri Oy Ab, in role since 2016.

Who is the chairman of Widenius, Sederholm & Someri Oy Ab?

Raija-Leena Hankonen-Nybom chairs the board of Widenius, Sederholm & Someri Oy Ab, in role since 2017.

Where is Widenius, Sederholm & Someri Oy Ab headquartered?

Widenius, Sederholm & Someri Oy Ab's registered address is Pl 1037.

Widenius, Sederholm & Someri Oy Ab

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Widenius, Sederholm & Someri Oy Ab

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Widenius, Sederholm & Someri Oy Ab