What is the Y-tunnus number of Koski Construction Oy?

Koski Construction Oy is registered with PRH / YTJ under Y-tunnus 2590859-2.

What is the revenue of Koski Construction Oy?

Koski Construction Oy reported revenue of EUR 138K in 2025.

How many employees does Koski Construction Oy have?

Koski Construction Oy employs 1 people as of the latest annual report.

Who is the CEO of Koski Construction Oy?

Juha Olavi Koponen is Audit of Koski Construction Oy, in role since 2013.

Who is the chairman of Koski Construction Oy?

Jussi Mauri Antero Koski chairs the board of Koski Construction Oy, in role since 2013.

Where is Koski Construction Oy headquartered?

Koski Construction Oy's registered address is As. 8.

Koski Construction Oy

OYActive

Y-tunnus 2590859-2As. 8Engineering activities and related technical consultancy · NACE 7112Est. 20131 employees

Revenue 2025

EUR 138K

+8% vs 2024

EBITDA margin

40.9%

+16% vs 2024

Equity ratio

97.4%

Financial strength

Net profit 2025

EUR 57K

+22% vs 2024

EBITDA — year on yearEUR millions

Key figuresAnnual report 2025

Revenue	EUR 138K	+8%
EBITDA	EUR 56K	+16%
Net profit	EUR 57K	+22%
Total assets	EUR 532K	-1%
Equity	EUR 519K	+3%
Employees	1	—

Item	2021	2022	2023	2024	2025
Revenue	145	134	13 935	128	138
Staff expenses	−84	−93	−8 008	−67	−68
EBITDA	53	35	5 250	49	56
Depreciation & amort.	−2	−2	−294	−4	−5
EBIT	51	33	4 956	45	52
Net financials	20	259	2 273	14	13
Profit before tax	44	342	5 370	59	64
Tax	21	44	6	12	7
Net profit	23	198	4 746	47	57

Item	2021	2022	2023	2024	2025
Total assets	384	587	53 463	535	532
Equity	305	479	501	502	519
Long-term debt	—	1	342	1	1
Short-term debt	79	107	30	32	12
Total debt	79	108	34	34	14

Name	Role	Member since
Current (1)
HM Heidi Maaria Koski Deputy Member	Deputy Member	2013
Former (2)
JO Juha Olavi Koponen Audit	Audit	2013 – 2020
SI Seija Irmeli Hakamäki Audit	Audit	2020 – 2023

Name	Role	Member since
Current (1)
JM Jussi Mauri Antero Koski	Board of Directors	2013

Person	Role here	Other companies
Juha Olavi Koponen	Audit	0 companies
Seija Irmeli Hakamäki	Audit	0 companies
Heidi Maaria Koski	Deputy Member	0 companies
Jussi Mauri Antero Koski	Board of Directors	0 companies