Leverage first-party data to discover media owners with the greatest potential to reach your customers. Through deterministic identity matching, audience affinity is accurately measured to power data-driven media planning and buying.

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The journey from unknown to known audiences

The journey from unknown to known audiences

Unknown planning

Digital advertising has historically been planned against an unknown, aggregated audience, driven by cookie data and based largely upon behavioural attributes in lieu of being able to plan using known audience data at an individual level.

Walled gardens changed the game

Google and Facebook evolved the media planning experience, enabling advertisers to plan people-based marketing simply. Brands have become accustomed to this, and want a similar experience outside of the walled gardens.

Building a known audience

Driven by the needs of advertisers, and the decline of cookie data, media owners are increasing their known audience through registration and paywalls. Both sides now seek a privacy-safe, simple and effective way to work together.

Introducing Discovery

Introducing Discovery

Discovery is the new platform from InfoSum enabling media planning across multiple known audiences and media owners, while providing the same level of simplicity as Facebook Custom Audience and Google Customer Match.

Discovery is the most privacy-safe media planning platform for brands and their media agencies.

  • Audience affinity is accurately measured by analysing the overlap in first-party datasets
  • Non-movement of data means parties retain complete control of their data
  • We deterministically match on PII, to deliver increased accuracy with no reliance on cookies or universal ID
  • Identities can be matched across any number of channels and devices to unlocking omnichannel media planning

How does discovery work?

Data Upload

Data is uploaded to a secure and dedicated instance, running on secure cloud infrastructure, known as a Bunker. Only you have access to this, and the data never leaves.

Data Upload

Discover Media Owners

Instantly see the media owners that are available in Discovery. To measure the intersection between your first-party data and the media owner’s audience, simply request access.

Discover Media Owners

Unlock insights

Instant see the intersection between data sets. Use the attributes in your data and other second and third-party data sources to conduct detailed analysis.

Unlock insights

Case Study


A luxury brand planned to launch an advertising campaign targeting lapsed customers. Using CRM data, they need to identify the optimum online publisher or group of publishers to activate through.

There are a number of challenges preventing this project moving forward:

  • A lack of trust prevents either party sharing data with each other.
  • Data privacy and compliance demands mean a data processing agreement is needed and data transfer is an arduous process.
  • Matching identities requires a common ID or data to be sent to a third-party to match.
Download our case study to find out how Discovery provided a first-party solution that promoted trust and retained data privacy.
Given the current industry challenges, we’re exploring Discovery as a solution to strengthen and expand our relationships with brands, and creating new opportunities for them to reach the highly-engaged audiences that our special interest content appeals to.
Matthew Rance, Commercial Audience Manager, Immediate Media
Discovery will provide us with in-depth insights for our media planning, and is a major step forward in tackling the challenges around data in the rapidly changing digital landscape.
Harry Doyle, CTO, Infectious Media
Privacy-Safe Analysis


Your raw data is never shared, ensuring it remains fully in your control at all times during analysis.



Move to privacy-safe PII connectivity to reduce reliance on third-party cookie technology.

Simple Data Processing


Federated Architecture overcomes trust barriers by removing the need to share and centralise data.

Complete Control

Reduce compliance burden

Non-movement of data, differential privacy concepts and robust security controls reduce compliance burden.