Masino Group – from customer relationship to partnership The Masino Group is a group of seven companies that operates in tech ... nical trade and serves the Finnish industry and production. Many of our products are market leaders in their fields. Masino Group, an over 60-year old family business, is an expert partner for both our clients and our Finnish and international suppliers. The Masino Group is a Finnish group consisting of 6 companies: Masino Oy, Masino-Konaflex Oy, Masino Fastening Oy, Masino Welding Oy, Masino Industry Oy, Sejo Oy and Suomen TPP Oy. read more