Koja Oy

OYActive

Y-tunnus 1841338-0Lentokentänkatu 7, 33900 TampereManufacture of non-domestic air conditioning equipment· NACE 2825Est. 2003 · 22 years old351 employees

Overview Financials People & ownership Related companies

Koja Oy is a Finnish OY based in Tampere, operating in the Manufacture of non-domestic air conditioning equipment sector. Incorporated in 2003, the company has 351 employees and reported revenue of EUR 88,2M in its latest annual filing.

Revenue 2025

EUR 88,2M

+7% vs 2024

EBITDA margin

4.9%

-4% vs 2024

Net profit 2025

EUR 481K

+252% vs 2024

Key ratios

See full ratios →

11.4%

This company

20212025

1.0×

This company

20212025

1.2%

This company

20212025

EBITDA — year on year

EUR millions

Key figures

Annual report 2025

Revenue	EUR 88,2M	+7%
EBITDA	EUR 4,3M	-4%
Net profit	EUR 481K	+252%
Total assets	EUR 41,3M	+16%
Equity	EUR 4,7M	+11%
Employees	351	—

Contact

Address

Lentokentänkatu 7, 33900 Tampere

Risika for professionals

Risika provides regulated workflow tools for finance, procurement and compliance teams that need monitoring, alerts and an API.

Visit risika.com

Frequently asked questions

What is the Y-tunnus number of Koja Oy?

Koja Oy is registered with PRH / YTJ under Y-tunnus 1841338-0.

What is the revenue of Koja Oy?

Koja Oy reported revenue of EUR 88,2M in 2025.

How many employees does Koja Oy have?

Koja Oy employs 351 people as of the latest annual report.

Who is the CEO of Koja Oy?

Leena Kaarina Aalto is the CEO of Koja Oy, in role since 2021.

Who is the chairman of Koja Oy?

Timo Ilmari Seppälä chairs the board of Koja Oy, in role since 2023.

Where is Koja Oy headquartered?

Koja Oy's registered address is Lentokentänkatu 7.

Koja Oy

Key ratios

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Koja Oy

Key ratios

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on Koja Oy