
Trust and security services
All kind of supervision: controls for each type of structure



The roots of National Services Group were set back in the 1970's, when Giorgio Calleri founded the well-known Private Supervisory Group Mondialpol. Today, with over 50 years of experience in the world of surveillance and investigations, the company, always owned by the Calleri’s, is a national player in the Trust Services sector
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The corporate philosophy leads the company to constantly upgrade itself to the technological progress in order to provide the best service. For National Services Group, having a constant comparison with its customers is strategically important, in order to analyze their needs useful to constantly maintain and guarantee the high and necessary quality and safety standards
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The experience that we have gained during the years, convinced us that the human factor is the element of strength. The peculiar characteristics and the training of our resources, together with a convincing corporate welfare policy, have determined the right formula of success to reach the results that even today, after 50 years, see the company as a protagonist
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Services overview
Here are some examples of the tasks performed
Work with us
All open positions with requirements specifications. You can also send us your CV for a spontaneous application (only in Italian)
Feedback from our customers
Experience teaches, your advice is always very valuable to us
I turned to National Services for an event organized by the publishing company for which I work in the premises of a Roman university. I relied on the history of the company and on the convincing words of those who explained to me the services that would have been offered to me. The attention to detail has done the rest. I am fully satisfied and will be back to use National Services

Lorenzo Gennari
Web Producer FIRSTonline
I chose National Services doing research on the company's reputation in Italy. I am an Argentine entrepreneur and could not rely on chance. I had to protect the premises that keep the servers for the cloud computing offer of my IT company. Never a problem, never any case of intrusion. The reports are fantastic. Pre-sales communication is precise and not at all aggressive.

Martin Redondo
Entrepreneur
I asked NSG for advice to know the risks of leaving some of our offices detached from the central office. Quote obtained very quickly with suggestions to optimize the cost / benefit ratio in my specific case. Company well known in the sector. The results obtained and the feedback from other customers help us understand that we are on the safe side.

Serena Brandimarte
Office manager
300
Security operators
67
Performed activities
2250
Customers since 1970
49
Years of experience
Ultime notizie - Rassegna stampa
Una selezione delle notizie che riguardano il nostro settore - National Services Group su TV e Giornali
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NSG sponsor del Forum Compraverde
Il Forum Compraverde Buygreen è un evento dedicato a politiche, progetti, beni e servizi di Green Procurement pubblico e privato. Due giornate di Stati Generali degli Acquisti Verdi per discutere le novità legislative, le best practices nazionali e internazionali, le opportunità in materia di acquisti verdi con convegni, workshop, sessioni formative, scambi one to one e altre iniziative partecipate
NSG sponsor degli Open d’Italia di Golf
Open d’Italia: una lunga storia per un incredibile intrecciarsi di personaggi e di episodi, di clamorose imprese e di delusioni, di campioni che hanno nobilitato l’albo d’oro e di altri che hanno dato lustro al torneo pur non vincendo.