ArkOpen Oy

ActiveBusiness ID 0211026-2Limited companyEst. 197771110 · Architectural activities Helsinki, Uusimaa

Age49 years

older than 97% of its sector

Same activity, Finland1,386live companies · 48th oldest

In Helsinki84,023live companies · 513 in the same activity

At this address4live companies incl. this one

In brief

ArkOpen Oy is a limited company registered in Finland on 29 April 1977. At 49 years old it is older than 97% of the 1,386 live companies whose main activity is architectural activities. Its registered office is in Helsinki, Uusimaa, at an address shared with 3 other live companies. 513 live companies in Helsinki share the same main activity. It was previously called ARK Oy Kahri & Co, a name it changed on 27 April 2006.

Register details

Registered nameArkOpen Oy

Business ID0211026-2

Company typeLimited company

Registered officeTöölönkatu 6, 00100 Helsinki

Nature of business (TOL 2025, Finnish SIC)71110 Architectural activities

International sector (ISIC Rev.4)M · 71 Architectural and engineering activities; technical testing and analysis

Timeline

27 Apr 2006Name changedPreviously ARK Oy Kahri & Co
29 Apr 1977Incorporated

Register entries

From the register.

Incorporated29 April 1977

VAT registerRegistered

Employer registerRegistered

Websitewww.arkopen.fi

Architectural activities in Finland

Live companies whose main activity is 71110: 1,386 in total, median age 19 years, 39 incorporated in the past 12 months.

All 1,386 companies

This company's decadeOther decades

Incorporated per year, still live

Location

Registered office in Helsinki, Uusimaa.

Live companies in Helsinki84,023

Same activity in Helsinki513

New in Helsinki, past 12 months5,606

Also registered at this address

3 other live companies share this registered office.

ATArkkitehtitoimisto Tiuri & Lommi Oy1439992-1 · Est. 1998 · 71110
EExpoinvirtual Oy3213013-3 · Est. 2021 · 73111
AJArkkitehti Jaakko Penttilä Oy3584459-6 · Est. 2025 · 71110

Similar companies

Live companies with the same main activity, nearest first.

Compare all

Arkkitehtitoimisto Ponkala OyHelsinki, Uusimaa

Number 0140603-7Est. 1977

Arkkitehtitoimisto Jauhiainen OyHelsinki, Uusimaa

Number 0106616-7Est. 1977

Arkkitehtitoimisto Jari Reponen OyHelsinki, Uusimaa

Number 0221734-2Est. 1978

Sisustusarkkitehtitoimisto Antti Paatero OyHelsinki, Uusimaa

Number 0235375-8Est. 1978

ARK Viikari OyHelsinki, Uusimaa

Number 0275893-1Est. 1978

Arkkitehtitoimisto PSM OyHelsinki, Uusimaa

Number 0198904-1Est. 1975

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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