S.E.I. holds certificates issued by S.O.A. qualifying it to carry out public works in the following fields and for the following amounts:

S.E.I. is a member of:
- ASSISTAL, the National Italian Association of Installers, the category association
- ALBIQUAL, the register of qualified installers.

The company has been granted authority, by the Ministry of Postal and Telecommunications Services, to install first level telephone systems.
Apart from routine and non-routine maintenance, S.E.I. is also qualified to construct, transform and enlarge the plants and systems specified above, as according to Law n. 46 of 1990.

The Quality System, that the Company introduced and has applied for several years now, was certified as conforming to the ISO 9001 standards in June 1997.