Top Identity Resolution Software for Marketers in 2025

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Leads and customers are what drive your business forward. Understanding who they are and how they interact with your brand is key to successful marketing campaign. But when your leads are scattered across different channels, it can be difficult to paint a complete picture of your audience.

With identity resolution software, a tool that helps marketers gather behavior attributes to create a unified customer profile, you can create a foundation for your business to make data-driven marketing decisions with confidence.



Keep reading to learn more about identity resolution software, including:

What is identity resolution?
Why is identity resolution software important?
Top identity resolution software
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What is identity resolution?
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Identity Resolution
Identity resolution is the process of compiling user actions and attributes from across different platforms and touchpoints to create a single, unified profile.

Marketers use identity resolution to link behavioral actions to specific customers, similar to how detectives piece together information from cell phones, surveillance cameras, and online activity to find a missing person.

Identity resolution software vs. CDP
Because both tools deal with aggregating customer data, many see identity resolution software and customer data platforms (CDPs) as one in the same. In reality, the two differ in how they’re used.

Whereas a CDP acts as a comprehensive customer database, identity resolution software integrates customer behavior identifiers across platforms to create individual profiles for customers.

Why is identity resolution software important?
First and foremost, identity resolution is a data management process. Rather than treating customer data from different channels as separate profiles, identity resolution (as a practice and software) seeks to connect those attributes and actions to create a single profile. In doing so, it helps to organize the data collection and organization process for businesses.

Additionally, identity resolution software is important because it helps marketers and businesses recognize individual customers and the actions they take when interacting with a company. Through this, businesses can better understand their audience and produce more personalized campaigns and buying experiences.

Top identity resolution software
Many factors go into choosing the right identity resolution software for your business. From pricing to features, there’s a lot to consider. Whether you’re in the market for an identity resolution platform or just curious about what’s available, this guide to the top identity resolution software and platforms can help make your choice easier.

Take a look at the top identity resolution software options, including comparisons of key features:

MarketingCloudFX
Wunderkind
LiveRamp
Amperity
Narrative
FullContact
Retention.com
MarketingCloudFX
mcfx

MarketingCloudFX is a multifaceted revenue marketing platform that comes stacked with tools to help marketers make the most of the customer data, including identity resolution capabilities like lead enrichment and contact management.