Testo-Onni Oy is a Finnish OY based in Järvenpää, operating in the Business and other management consultancy activities sector. Incorporated in 2022, the company has 1 employee and reported revenue of 5,0 t. € in its latest annual filing.
In its most recent annual report (2025), Testo-Onni Oy reported revenue of 5,0 t. €, a decrease of 74% on the year before. The figures on this page draw on 4 annual filings covering 2022 to 2025. The bottom line showed a net profit of 4,4 t. €, and the EBITDA margin stood at 91.6%.
At the end of 2025, current assets covered short-term debt 0 times.
Frequently asked questions
What is the Y-tunnus number of Testo-Onni Oy?
Testo-Onni Oy is registered with PRH / YTJ under Y-tunnus 3258773-1.
What is the revenue of Testo-Onni Oy?
Testo-Onni Oy reported revenue of 5,0 t. € in 2025.
How many employees does Testo-Onni Oy have?
Testo-Onni Oy employs 1 people as of the latest annual report.
Who is the CEO of Testo-Onni Oy?
Onni Hermanni Ruokonen is the CEO of Testo-Onni Oy.
