Private Investigators in Sydney | Private Investigators in Chatswood | Parramatta

National Surveillance and Intelligence Sydney provides specialist security consulting and private investigator services to the private sector, high net worth clients, corporate types and government sectors throughout Sydney, NSW and Australia. We can arrange meetings by appointment in Chatswood, North Ryde, Parramatta, Wetherill Park or we can come to you throughout the Sydney Region and Australia Wide.

Our range of services include:

Feel free to contact us for more information and a free quote.


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We now offer specialist services at NSI Consulting

Visit NSI Consulting for our specialist division services.

Our range of services include:

CCTV Surveillance Camera Systems and Alarms

National Surveillance & Intelligence offers a wide range of CCTV surveillance systems and alarms for homes and businesses. See our security page here.


We have expanded into Security services

In the new year we will be introducing security services to our private investigation and de-bugging services.