About Us

SOMMA is an Italian engineering company highly specialized in the design and production of structural restraint and support devices, road and railway expansion joints, and anti-seismic devices.

SOMMA boasts many years of experience in the infrastructure and construction sectors.
The SOMMA brand is now recognized worldwide as a guarantee of quality and reliability, having contributed with its products to the construction of numerous important projects around the world.

SOMMA operates worldwide through a network of experienced and problem-solving technicians. With a young, flexible, and fast-paced organization, it is able to meet the technical and design needs of each client, tackling projects and resolving a wide range of issues.
A recognized leader among businesses and designers, SOMMA has its offices in Rome and factories in Civita Castellana (VT) and Aprilia (LT). The Aprilia factory also houses the testing laboratory.

SOMMA is a member of the ASSISI Anti-Seismic Systems International Society and of UNICMI (National Union of the Metal Construction Industries for the Envelope and Windows).

Quality and Certifications

SOMMA designs and manufactures CE-marked bearings according to EN 1337, CE-marked anti-seismic devices according to EN 15129, and CE-marked expansion joints according to EAD 120110.

Furthermore, SOMMA operates under a quality management system compliant with ISO 9001:2015, ISO 45000:2018, and ISO 14001:2015.

SOMMA boasts numerous approvals, including those from the Italian (RFI-ITALFERR), Algerian (ANESRIF), and Romanian (ADVIZ TECHNIC) railways.
Research, focused on improving the performance of existing products as well as developing new technologies and devices, is the company’s core focus.
In fact, SOMMA collaborates and interacts with universities, research institutions, and scientific laboratories to develop innovative and complex projects and products.
Finally, SOMMA holds patents, the ultimate goal of the above-mentioned research and development, relating to seismic protection devices, structural devices, and expansion joints.