Rakennus J.Tiainen Oy

OYActive

Y-tunnus 0874468-8Oilaantie 664, 09810 NummiConstruction of residential and non-residential buildings · NACE 4100Est. 1991— employees

Overview Financials People & ownership Related companies

Rakennus J.Tiainen Oy is a Finnish OY based in Nummi, operating in the Construction of residential and non-residential buildings sector. Incorporated in 1991, the company reported revenue of EUR 77K in its latest annual filing.

Revenue 2025

EUR 77K

-40% vs 2024

EBITDA margin

-20.8%

-204% vs 2024

Equity ratio

36.9%

Financial strength

Net profit 2025

EUR -20K

-250% vs 2024

EBITDA — year on year

EUR millions

Key figures

Annual report 2025

Revenue	EUR 77K	-40%
EBITDA	EUR -16K	-204%
Net profit	EUR -20K	-250%
Total assets	EUR 44K	-47%
Equity	EUR 16K	-59%
Employees	—	—

Contact

Address

Oilaantie 664, 09810 Nummi

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Frequently asked questions

What is the Y-tunnus number of Rakennus J.Tiainen Oy?

Rakennus J.Tiainen Oy is registered with PRH / YTJ under Y-tunnus 0874468-8.

What is the revenue of Rakennus J.Tiainen Oy?

Rakennus J.Tiainen Oy reported revenue of EUR 77K in 2025.

Who is the CEO of Rakennus J.Tiainen Oy?

Juha Tapio Tiainen is Chief Executive Officer of Rakennus J.Tiainen Oy, in role since 2021.

Who is the chairman of Rakennus J.Tiainen Oy?

Juha Tapio Tiainen chairs the board of Rakennus J.Tiainen Oy, in role since 1991.

Where is Rakennus J.Tiainen Oy headquartered?

Rakennus J.Tiainen Oy's registered address is Oilaantie 664.

Rakennus J.Tiainen Oy

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Rakennus J.Tiainen Oy

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Rakennus J.Tiainen Oy