Data Clean Room
Data & TrackingAlso: Clean Room · Privacy Clean Room
Quick definition
A privacy-preserving environment where two parties — typically a brand and a media platform — can analyse combined datasets without either party seeing the other's raw data. Only aggregate outputs are released.
How it varies across Australia
Data clean rooms are primarily used by large advertisers and agencies managing significant media budgets. Adoption in Australia is growing in retail, financial services and telecommunications. For most businesses spending under $1M annually on paid media, the implementation complexity exceeds the practical benefit.
Explore benchmarks →Analysis techniques that allow insights to be derived from sensitive data without exposing individual records. Clean rooms use methods like differential privacy, aggregation thresholds and secure multi-party computation.
Understanding the intersection between your customer base and a platform's audience — which of your customers are active there, what they engage with and whether your campaigns are reaching them.
First-party data from another organisation shared directly with you — typically through a partnership. Data clean rooms enable second-party data collaboration without raw data exposure.
A minimum group size (often 50 or more) required before results can be released from a clean room. Prevents reverse-engineering of individual records from small-group analysis.
What it actually means
A data clean room is a controlled, secure computing environment that allows two organisations to combine and analyse their first-party data without either party exposing their underlying records. The analysis runs inside the room and only the agreed outputs — aggregate insights — are released. The most common marketing use case is a brand matching its own customer data against a media platform's audience data to understand reach, frequency and campaign effectiveness without handing over raw customer records.
A clean room is where your data and a platform's data meet without either party having to trust the other with their source records.
The Australian context
Google, Meta, Amazon and The Trade Desk all offer clean room environments accessible to Australian advertisers. Third-party platforms include InfoSum, Habu and Snowflake Data Clean Rooms. The Privacy Act 1988 and Australian Privacy Principles govern data sharing arrangements — any clean room implementation requires legal review of the data processing agreement.
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About New Rebellion
New Rebellion is a marketing intelligence consultancy. We build tools, score Australian businesses on how their marketing actually performs, and publish Debrief every day. This dictionary is part of how we work in the open.
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