Sejo Oy

ActiveBusiness ID 0637475-9Limited companyEst. 198646842 · Wholesale of plumbing and heating equipment and supplies Vantaa, Uusimaa

Official record ↗

Age40 years

older than 91% of its sector

Same activity, Finland298live companies · 28th oldest

In Vantaa19,730live companies · 34 in the same activity

At this address9live companies incl. this one

In brief

Sejo Oy is a limited company registered in Finland on 28 August 1986. At 40 years old it is older than 91% of the 298 live companies whose main activity is wholesale of plumbing and heating equipment and supplies. Its registered office is in Vantaa, Uusimaa, at an address shared with 8 other live companies. 34 live companies in Vantaa share the same main activity. It was previously called Sejotek Oy, a name it changed on 1 June 2013.

Register details

Registered nameSejo Oy

Business ID0637475-9

Company typeLimited company

Registered officeKärkikuja 3, 01740 Vantaa

Nature of business (TOL 2025, Finnish SIC)46842 Wholesale of plumbing and heating equipment and supplies

International sector (ISIC Rev.4)G · 46 Wholesale trade, except of motor vehicles and motorcycles

Timeline

1 Jun 2013Name changedPreviously Sejotek Oy
28 Aug 1986Incorporated

Register entries

From the register.

Incorporated28 August 1986

VAT registerRegistered

Employer registerRegistered

Wholesale of plumbing and heating equipment and supplies in Finland

Live companies whose main activity is 46842: 298 in total, median age 17 years, 19 incorporated in the past 12 months.

All 298 companies

This company's decadeOther decades

Incorporated per year, still live

Location

Registered office in Vantaa, Uusimaa.

Live companies in Vantaa19,730

Same activity in Vantaa34

New in Vantaa, past 12 months1,215

Also registered at this address

8 other live companies share this registered office.

MGMasino Group Oy0715031-9 · Est. 1988 · 46833
STSuomen TPP Oy0765024-1 · Est. 1989 · 46833
MFMasino Fastening Oy0792089-7 · Est. 1990 · 46841
MMasino-Konaflex Oy0110136-4 · Est. 1974 · 46642
JFJK-Trade Finland Oy1513389-3 · Est. 1999 · 46842
MMasino Oy0111375-2 · Est. 1967 · 46642
MKMasino Kiinteistöt Oy2040886-3 · Est. 2006 · 68203
EEurofasteners Oy2369298-6 · Est. 2010 · 46841

Similar companies

Live companies with the same main activity, nearest first.

Compare all

Markkinointi Suomalainen KyVantaa, Uusimaa

Number 0557419-3Est. 1986

Ventur Finland Oy AbVantaa, Uusimaa

Number 0720305-4Est. 1989

Helsinki Valve & Fitting AbVantaa, Uusimaa

Number 0521669-5Est. 1983

Systemair OyVantaa, Uusimaa

Number 0805796-8Est. 1990

Oy Grundfos Pumput AbVantaa, Uusimaa

Number 0863934-3Est. 1991

Oy Lining AbVantaa, Uusimaa

Number 0401410-0Est. 1980

Sources

Register data: Finnish Patent and Registration Office (PRH) open data (CC BY 4.0), delivery of 20 October 2026. Municipalities, regions and industry classification: Statistics Finland (CC BY 4.0). Context figures are computed by FirmsDB from these sources. This page is not an official register; check the company's entry in the Finnish Business Information System before relying on it.

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