O3Rent Ab

OYActive

Y-tunnus 2417129-3Krokviksgränd 4, 22100 MariehamnEngineering activities and related technical consultancy · NACE 7112Est. 2011— employees

Overview Financials People & ownership Related companies

O3Rent Ab is a Finnish OY based in Mariehamn, operating in the Muu rakennustekninen palvelu sector. Incorporated in 2011, the company reported revenue of EUR 2K in its latest annual filing.

Revenue 2025

EUR 2K

-5% vs 2024

EBITDA margin

-30.3%

+45% vs 2024

Equity ratio

88.4%

Financial strength

Net profit 2025

EUR -745

+42% vs 2024

EBITDA — year on year

EUR millions

Key figures

Annual report 2025

Revenue	EUR 2K	-5%
EBITDA	EUR -616	+45%
Net profit	EUR -745	+42%
Total assets	EUR 4K	-17%
Equity	EUR 4K	-17%
Employees	—	—

Contact

Address

Krokviksgränd 4, 22100 Mariehamn

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Frequently asked questions

What is the Y-tunnus number of O3Rent Ab?

O3Rent Ab is registered with PRH / YTJ under Y-tunnus 2417129-3.

What is the revenue of O3Rent Ab?

O3Rent Ab reported revenue of EUR 2K in 2025.

Who is the CEO of O3Rent Ab?

Sebastian Johannes Mansnerus is Chief Executive Officer of O3Rent Ab, in role since 2011.

Who is the chairman of O3Rent Ab?

Stefan John Karlsson chairs the board of O3Rent Ab, in role since 2011.

Where is O3Rent Ab headquartered?

O3Rent Ab's registered address is Krokviksgränd 4.

O3Rent Ab

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on O3Rent Ab

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on O3Rent Ab