Data from the official company registers of 12 countries. Not an official register.

English

Rational Usage Oy

Age35 years
older than 94% of its sector
Same activity, Finland3,574live companies · 210th oldest
In Kulho82live companies
At this address1only this company

In brief

Rational Usage Oy is a limited company registered in Finland on 9 October 1991. At 35 years old it is older than 94% of the 3,574 live companies whose main activity is computer consultancy and computer facilities management activities. Its registered office is in Kulho, Kontiolahti, Pohjois-Karjala. It was previously called Joensuun CAD-Keskus Oy, a name it changed on 27 January 1993.

Register details

Registered nameRational Usage Oy
Business ID0856395-9
Company typeLimited company
Registered officeKypäräntie 54, 80910 Kulho
Nature of business (TOL 2025, Finnish SIC)62200 Computer consultancy and computer facilities management activities
International sector (ISIC Rev.4)J · 62 Computer programming, consultancy and related activities

Timeline

Register events, newest first.

  • Name changedPreviously Joensuun CAD-Keskus Oy
  • Incorporated

Register entries

From the register.

Incorporated9 October 1991
VAT registerRegistered
Employer registerNot registered

Computer consultancy and computer facilities management activities in Finland

Live companies whose main activity is 62200: 3,574 in total, median age 9 years, 166 incorporated in the past 12 months.

All 3,574 companies
This company's decadeOther decades
05001,0001,5002,0001940s: 221940s1960s: 441960s1970s: 15151970s1980s: 1331331980s1990s: 3273271990s2000s: 5345342000s2010s: 1,1261,1262010s2020s: 1,4331,4332020s
Incorporated per year, still live
01002003004002011: 9620112012: 1152013: 9820132014: 892015: 9320152016: 1082017: 13920172018: 1212019: 17520192020: 1982021: 21920212022: 2162023: 19720232024: 2452025: 24620252026: 112

Location

Registered office in Kulho, Kontiolahti, Pohjois-Karjala.

Live companies in Kulho82
Same activity in Kulho1
Live companies in Kontiolahti732
New in Kulho, past 12 months6

Similar companies

Live companies with the same main activity, nearest first.

Compare all

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.