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Best Identity Resolution Software

Identity resolution software helps businesses recognize the unique digital identities of individual customers, enabling them to develop highly personalized campaigns for targeted outreach. As consumers navigate across multiple devices, companies aggregate disjointed datasets about their online behavior. Identity resolution solutions reconcile all available data points from first-, second-, and third-party sources to provide businesses with comprehensive customer profiles.

More about Identity Resolution Software

Key features include:

  1. Data Aggregation from Multiple Sources
  2. Identity Graph Creation
  3. Cross-Device Identity Resolution
  4. Unified Customer View

Marketing teams and advertising agencies leverage identity resolution tools to gain an understanding of individual consumer behavior across channels. This insight helps them customize the messaging and experiences delivered to customers through website personalization, targeted ads, email remarketing, and more.

Identity resolution capabilities are sometimes offered as part of other customer data management solutions, such as customer data platforms (CDP), data management platforms (DMP), and customer identity and access management software.

To qualify for the Identity Resolution category, a product must:

  • Create identity graphs using data points collected across devices and channels, such as email addresses, device IDs, cookie data, social media activity, and online purchases.
  • Connect disparate identifiers to provide a 360-degree view of the customer’s digital identity and behavior.
  • Enable businesses to recognize unique customer identities and develop personalized campaigns for targeted outreach.

The core value proposition of identity resolution software is to enable businesses to recognize individual customers across various touchpoints, aggregate their data from multiple sources, and create a unified view of their digital identities and behaviors, facilitating highly personalized marketing and customer experiences.

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Picked from the Identity Resolution Software records below, by what each one is strongest at.

Identity Resolution Software Compared

Compare the 10 most relevant Identity Resolution Software options on price, free trial and deployment.

Identity Resolution Software comparison: starting price, free trial, free plan, API and deployment
Product Starting price Free trial Free plan API Deployment
Tilores One resolved data layer for risk, Customer 360 and AI… Custom ✓ ✓ ✓ Cloud Based, On Premises
Senzing Real-time entity resolution engine with explainable, principle-based matching $58,560 ✓ – ✓ Cloud Based, On Premises
Tamr AI-native master data management producing trusted golden records Custom – – ✓ Cloud Based
Zeta Marketing Platform AI marketing cloud with proprietary identity data and agentic execution Custom – – ✓ Cloud Based
FullContact Cookieless customer recognition and identity resolution for marketers Custom – – ✓ Cloud Based
Quantexa Decision intelligence built on entity resolution and graph analytics Custom – – ✓ Cloud Based, On Premises
LiveRamp Data collaboration and enterprise identity for marketing activation Custom – – ✓ Cloud Based
Amperity AI-powered customer data platform built around identity resolution and consumption… Custom – – ✓ Cloud Based
Reltio Cloud-native master data management and Customer 360 platform, now part… Custom – – ✓ Cloud Based
Informatica Cloud-native platform unifying data integration, quality, governance, catalog and master… Custom ✓ – ✓ Cloud Based, Hybrid, On Premises

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12 Best Identity Resolution Software Options

Showing 11 - 12 of 12 products

TransUnion's marketing identity and audience solution

TruAudience is TransUnion's marketing solution, applying the credit bureau's identity data to audience targeting, activation and measurement. The distinguishing asset is provenance: TransUnion maintains identity data at national scale as part of its core bureau business, so the underlying graph is built from a different foundation than a marketing-only vendor's.

That matters most where reach and accuracy across an entire population are required rather than resolution within a brand's own customer base. It sits within TransUnion's broader marketing solutions alongside its risk and credit products. Buyers should confirm current scope, packaging and data-use terms directly with TransUnion, since bureau-sourced marketing data is subject to regulatory constraints that differ by jurisdiction and use case, and the public product page is light on specifics.

Read TransUnion TruAudience Reviews

Configurable ML-powered record matching as an AWS service

AWS Entity Resolution matches, links and enhances related records held across multiple applications, channels and data stores. It is described as easy to configure and ML-powered, and its scope is broader than customer data alone, extending to product, business and healthcare records.

The flexibility in matching is the notable part: rule-based matching, machine learning matching, or matching through a data service provider can each be used depending on the job. Rules are predictable and explainable; ML handles messier variation; a provider brings external reference data. For teams already on AWS, the appeal is that this is a service rather than another platform to run, billed on consumption and integrated with the surrounding data estate. Teams outside AWS, or needing the investigative graph tooling of a specialist, will find the dedicated vendors in this category better suited.

Read AWS Entity Resolution Reviews

Identity Resolution Software Buyer's Guide

Identity resolution software matches records that refer to the same person, household or business across different data sources and merges them into one profile. The products listed here come from two traditions: marketing identity, used to build customer profiles and audiences (LiveRamp, TransUnion TruAudience, FullContact, Zeta, Amperity), and entity resolution for data management, fraud and compliance (Senzing, Quantexa, Tamr, Tilores, Reltio, Informatica, AWS Entity Resolution).

What is identity resolution software?

Identity resolution software is a matching engine that decides when two or more records describe the same real-world entity, even when names are spelled differently, addresses have changed or a record holds only an email address. It combines deterministic rules, such as exact matches on email or customer ID, with probabilistic or machine-learning matching for fuzzy cases, then gives each resolved entity a persistent ID.

Key features to look for in identity resolution software

  • Match records with deterministic and probabilistic rules
  • Assign persistent IDs that survive new data loads
  • Explain why two records were linked
  • Resolve records in real time as well as in batches
  • Connect to warehouses such as Snowflake and Databricks
  • Link households, businesses and devices as well as people
  • Enrich profiles with third-party identity data
  • Enforce consent and privacy rules on linked data

How to choose identity resolution software

To choose identity resolution software, decide whether you need to resolve only your own first-party data or also need a third-party identity graph. Marketers who want to recognise customers across channels and activate audiences usually compare LiveRamp, TruAudience and Amperity. Teams resolving entities for fraud, KYC or master data usually compare Senzing, Quantexa and Reltio. Test match quality on a labelled sample of your own records, if the vendor allows it, because published accuracy figures come from each vendor’s own benchmarks.

Identity resolution software pricing

Pricing is mostly quote-based. The published exceptions are Senzing, at $58,560 per year for 10 million data source records, and Tilores Studio, a free download that runs locally. AWS Entity Resolution, Amperity and Informatica charge by consumption, so cost scales with the volume processed. LiveRamp, TransUnion, FullContact, Zeta, Quantexa, Tamr and Reltio quote per deployment.

FAQs of Identity Resolution Software

Identity Resolution Software handles the day to day paperwork of identity resolution work, keeping customer records, scheduling and payment in one place.

General tools need adapting to identity resolution workflows and rarely cover the terminology or compliance involved, which is what Identity Resolution Software is built around.

Scale assumptions vary widely across Identity Resolution Software, so ask any vendor what a typical identity resolution customer of theirs actually looks like.

Identity Resolution Software vendors differ on migration, so confirm the import path for your current identity resolution records rather than assuming it is included.

Identity Resolution Software pricing is commonly per seat or per site and tiered by scale, so budget above what a general purpose identity resolution tool would cost.

Trial Identity Resolution Software against real identity resolution work rather than a vendor demo, and involve the staff who will use it daily.