What started in Italy has blossomed into a truly global enterprise. Our path of expansion reflects both strategic vision and careful attention to each step forward. From our initial warehouse in Locate Varesino, we first strengthened our Italian roots by investing in advanced machinery and expanding our capabilities. The year 2013 marked a pivotal moment with our first international facility in Plovdiv, Bulgaria – a decision that would transform Sigma Group into the global company it is today.

The success of our Bulgarian venture led to rapid growth:

• 2013: First Plovdiv unit established, marking our international growth
• 2015: Expansion of Italian facility with new commercial department
• 2018: Second Bulgarian plant opens, doubling our presence
• 2022: Completion of fourth building in Plovdiv

Today, our facilities across Italy and Bulgaria work in harmony, housing 16 sintering furnaces that deliver excellence in refractory solutions. With a production capacity exceeding 20,000 tons annually, we serve diverse needs across the glass industry while maintaining the flexibility to respond quickly to customer requirements. This balance of growth and agility remains key to our success, as we continue to expand our capabilities while preserving the responsive service that has always been SIGMA’s hallmark.