Oy Sigma Ab
In brief
Oy Sigma Ab is a limited company registered in Finland on 28 August 1953. At 73 years old it is older than 99% of the 24,687 live companies whose main activity is business and other management consultancy activities. Its registered office is in Helsinki, Uusimaa. 7,408 live companies in Helsinki share the same main activity. It was previously called Oy Grönblom Trading Ab, a name it changed on 6 February 1970.
Register details
Timeline
Register events, newest first.
- Name changedPreviously Oy Grönblom Trading Ab
- Incorporated
Register entries
From the register.
Business and other management consultancy activities in Finland
Live companies whose main activity is 70200: 24,687 in total, median age 6 years, 2,352 incorporated in the past 12 months.
Location
Registered office in Helsinki, Uusimaa.
Similar companies
Live companies with the same main activity, nearest first.
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.