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National Surveillance and Intelligence's corporate division. located at 91 George Street, Parramatta, provides technical security and counter surveillance solutions and support for corporate, high net worth individuals and government client's in the fields of security consulting, private investigations and technical surveillance counter measures.

Specialising in the detection of eavesdropping and listening devices, we understand the threat that businesses are facing and we use the latest equipment and technologies available to give you peace of mind. Industrial espionage is a major concern in Australia. Let us help you iin securing and protecting your assets and intellectual property by providing a risk solution that is second to none.

We use state of the art, defence grade equipment and techniques. Becoming a victim to an eavesdropping attack will affect your businesses bottom line and your company's share price.

Corporate Investigators Sydney | Security Consulting | Bug Sweeps Sydney


National Surveillance and Intelligence's other areas of expertise include background and pre-employment checks, electronic bug detection sydney, encrypted commuications (Voice and SMS), mobile phone forensics and the recovery of deleted SMS, contacts, pictures, videos; computer and digital forensics, risk management and analysis service and international investigations.

Electronic Bug Sweeps Sydney

NSI Consulting services areas through throughout NSW, inculding Chatswood, North Ryde, Parramatta, Wetherill Park, Bella Vista, Penrith, Miranda, Leichhardt, Lane Cove, Double Bay, Willoughby, North Sydney, Castle Hill, Mosman, and Mona Vale.

Contact Us today on 02 8840 4221.

Specialist Services

  • Listening Device Detection SydneyTechnical Services We are an experienced and professional source for all your technical surveillance counter measures needs; also known as electronic bug detection or bug sweeping. We provide a full technical and physical inspection of premises' and offer risk assessments as part of our service.
  • Private Investigator SydneyCorporate InvestigatorsOur corporate private investigation services provide clients with peace of mind in obtaining evidence needed to make informed decisions. We have private investigators in Sydney, Private Investigator in Chatswood, Private Detectives in Parramatta and all throughout the Sydney Area and Australia Wide..
  • Security Consulting SydneySecurity Consultancy Our Consulting division provides security advice to corporate and government client's in the form of background checks, security reviews and risk assessments, planning security for events, security project management. We also provide in depth reports on global security & intelligence and travel security reports.
  • Risk Management SydneyRisk ManagementNational Surveillance and Intelligence are able to assist in designing and carrying out industry specific risk assessments for security related matters. All assessments are carried out in compliance with Australian Standards AS 4360 and are specifically made for our client's.

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