Nielsen Television Audience Measurement Australia (Nielsen TAM) was originally established in 1999 as ATR Australia, later becoming AGB Nielsen Media Research, part of the global AGB Group.  Awarded a seven-year contract to produce Television Audience Measurement (TAM) in the five major Australian metropolitan markets from 1 January 2001, Nielsen TAM was awarded the contract to produce and market TAM data for regional markets as of January 2003, and to report Subscription Television as of August 2003.  The company was renamed Nielsen Television Audience Measurement in 2010 following the full acquisition of AGB by Nielsen, the largest provider of TAM services in the world.

At the start of the 2010 ratings year Nielsen TAM commenced measuring Time Shift Viewing for both the OzTAM and Regional TAM services.  The increasing use of PVR's for recording, pausing and rewinding live TV was a major driver of this service enhancement.

OzTAM and Regional TAM then awarded Nielsen TAM a second contract term until 2014 and 2015 respectively and two multi year extensions, the current one taking both the OzTAM and Regional TAM agreements through until the end of 2020. This extension incorporated a panel increase for both services of 50%, making Australia the largest per capita people metered market in the world and even more representative of the overall population.

Nielsen TAM is working closely with OzTAM and Regional TAM to expand our measurement of TV broadcast content to all devices it is now being viewed on.

Our Clients


OzTAM is an independent company owned by Australia's major commercial television broadcasters (Seven Network, Nine Network and Network Ten) and is the official source of television audience measurement in the five mainland markets (Sydney, Melbourne, Brisbane, Adelaide and Perth) and nationally for subscription television.  OzTAM owns and holds the copyright for the television audience data it delivers.


Regional TAM Pty Limited is a joint venture comprising the five FTA regional commercial networks - NBN Limited, Prime Television Pty Ltd, Seven Queensland, Southern Cross Austereo and WIN Corporation Pty Ltd.  Collected and marketed by Nielsen TAM, Regional TAM data is the official source of free-to-air and subscription television measurement in the five east coast aggregated regional markets including its 19 component sub-markets and the regional Western Australian market. 

Nielsen TAM's minute by minute viewing data produced on behalf of OzTAM and Regional TAM is used across the media industry by television networks, advertisers, media buyers and programme suppliers to assist them in understanding viewer behaviour as well as measuring the performance of television programs, networks and advertising campaigns.