TTJ Systems Oy

OYActive

Y-tunnus 2888040-9Kalliontie 190, 85430 SieviElectrical installation · NACE 4321Est. 2018 · 8 years old4 employeeswww.ttjsystems.fi

Overview Financials People & ownership Related companies

TTJ Systems Oy is a Finnish OY based in Sievi, operating in the Electrical installation sector. Incorporated in 2018, the company has 4 employees and reported revenue of EUR 672K in its latest annual filing.

Revenue 2025

EUR 672K

-11% vs 2024

EBITDA margin

11.3%

-45% vs 2024

Equity ratio

96.0%

Financial strength

Net profit 2025

EUR 37K

-59% vs 2024

Key ratios

See full ratios →

96.0%

16.3×

7.3%

EBITDA — year on year

EUR millions

Key figures

Annual report 2025

Revenue	EUR 672K	-11%
EBITDA	EUR 76K	-45%
Net profit	EUR 37K	-59%
Total assets	EUR 502K	-8%
Equity	EUR 482K	+0%
Employees	4	—

Contact

Address

Kalliontie 190, 85430 Sievi

Phone

+3580407743226

timo.vierimaa@ttjsystems.fi

Website

www.ttjsystems.fi

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Frequently asked questions

What is the Y-tunnus number of TTJ Systems Oy?

TTJ Systems Oy is registered with PRH / YTJ under Y-tunnus 2888040-9.

What is the revenue of TTJ Systems Oy?

TTJ Systems Oy reported revenue of EUR 672K in 2025.

How many employees does TTJ Systems Oy have?

TTJ Systems Oy employs 4 people as of the latest annual report.

Who is the CEO of TTJ Systems Oy?

Timo Antero Vierimaa is Chief Executive Officer of TTJ Systems Oy, in role since 2018.

Who is the chairman of TTJ Systems Oy?

Jarno Johan Petteri Saarilampi chairs the board of TTJ Systems Oy, in role since 2018.

Where is TTJ Systems Oy headquartered?

TTJ Systems Oy's registered address is Kalliontie 190.

TTJ Systems Oy

Key ratios

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on TTJ Systems Oy

Key ratios

EBITDA — year on year

Key figures

Company information

Contact

Frequently asked questions

More on TTJ Systems Oy