Sigma Group

About us


About us

The journey starts in 1986, when the Bonarrigo’s family begins to operate in the services sector, supported by professional and reliable staff; the family soon specialized in maintenance and in structural steel works.


SIGMA Group Ltd. Since the beginning the company only goal was to create and deliver accurate products and services. This quality rewards them today as a solid and established company that provides a wide range of solutions and interventions in the field of civil and industrial maintenance.


With the support of advanced technology and a group of technicians and skilled workers, now Sigma Group is recognized as leader in the industrial services, representing a reliable and valuable partner for public institutions, several companies and individuals.


Turnkey Services

Sigma Group since its establishment became a point of reference for the market by providing services, advices and performances necessary for the execution of complete and ready for use works. An important and at the same time challenging choice that requires constant care and use of resources highly qualified to carry out works of all kinds.

Sigma Group accomplishes works of all kinds, which can be completed with water, electrical and thermal works.

Multiple advantages of the turnkey service

Reduction of time: Sigma Group intend being the contact which to entrust projects to, eliminating unnecessary waiting times related to the coordination of the various performers. The job is carried out under the direction of a single qualified technician who coordinates the effort to get the job in a workmanlike manner, in compliance with the regulations and the safety of their employees.

Minimize the costs: Coordinating all the steps of the production provides a real reduction of costs and excellent value for money.

The certainty of costs: The estimated costs are considered in their entirety and include the whole development of the project.