Top 42 Identity Resolution Software SaaS Companies in May 2026

TORONTO, Ontario, Canada

At Aislelabs, we believe that data in the built environment has untapped potential. That building systems, like WiFi, aren’t just costs to be paid, but instead are investments that not only need an ROI, but can deliver it. We believe that marketers of the built environment – who we call Built-Environment Marketers – need help. They’re slammed with events and other activities that are unique to marketing in the physical world. We are that help. At Aislelabs, we are constantly looking for new and innovative ways to aid and empower the Built-Environment Marketer, turning WiFi from a cost center to a profit center. We do that by actively helping you deanonymize visitors, giving you the highest ROI marketing channel of all.

North Andover, MA, United States

Semcasting offers end-to-end, privacy-safe data solutions, including identity (ID) resolution, audience design, and attribution. The company pioneered cookieless targeting and ID resolution with its patented Smart Zones technology and constellation multi-touch identity resolution approach. The Semcasting constellation method is not dependent on a proprietary common identifier or a single match type but instead dynamically spans multiple online and offline identifiers in real-time. With this approach, Semcasting has brought unprecedented speed and scale to the next generation of ID resolution: - Match rates averaging higher than 85% - Campaigns live in minutes rather than weeks At its core, Semcasting is a data company with roots deeply embedded in offline, deterministic data elements and physical locations. Semcasting has created ownership and behavioral profiles for every U.S. household and business in the U.S. and Canada that can be used for custom audience building. Its patented Smart Zones technology connects consumer, business, mobile, and internet site traffic to online and offline locations to empower marketers to target prospects accurately at digital delivery points. Smart Zones has access to 1.8B IP address delivery points, 167M homes, 19.1M businesses, and 633M mobile devices.

Paris, Île-de-France, France

Sirdata provides its clients with the guarantee of reaching captive or purchase intents audiences through targeting that is respectful of users' choices, whether through contexts and its cookieless predictive tools and/or through tracers and consent management. For nearly a decade, Sirdata's technologies have analyzed, structured, processed and made activatable audiences and signals useful to the advertising and content industry.

San Francisco, California, United States

Digioh is the industry-leading marketing efficiency platform used by over 2,000 DTC brands like Knix, Death Wish Coffee, and Dollar Shave Club. We help increase conversions across the entire marketing funnel with customizable product recommendation quizzes, next-gen pop-ups and forms, and identity resolution for increased onsite personalization out of the box. Brands using Digioh see, on average, a 300% increase in conversions, 500% increase in identified site visitors, and 10% of total online revenue being driven by Digioh.

New York, New York, United States

Influ2 is a contact-level ABM platform that addresses a reality traditional account-based marketing tools ignore: people make decisions, not accounts. Legacy ABM software stops at the account level and nameless personas, leaving go-to-market teams guessing who’s actually interested. Influ2 removes that blind spot by letting you target, engage, and measure impact at the contact level across the entire buying journey. Influ2’s contact-level advertising lets teams define who to target using sales activity, pipeline stages, and any other CRM data your team tracks to align with sales priorities. Deliver ads to just those people across LinkedIn, Facebook, Instagram, Google, Bing, Amazon, and more, and know exactly who saw or engaged with each message. Every impression and click is tied to a named person, without relying on cookies, IP targeting, or form fills (CCPA- and GDPR-compliant). Influ2 also brings contact-level intent into the mix. Marketing and Sales can see which buyers are researching relevant topics through search behavior, third-party content consumption, social activity, and ad engagement. These signals are shown with context (e.g., which topics each person is interested in) and can be pushed directly into sales workflows, so reps know who to prioritize and what to say. In addition to targeting and intent, Influ2 lets teams create contact-level buyer journeys. Marketing can control which ads are shown based on each person’s engagement and sales stage, so every buying group member sees content that reflects where they actually are in the decision process—not where an account score says they should be. Measuring ABM performance is also easier in Influ2. Instead of vague attribution models, Influ2’s reporting makes revenue impact clear by showing how specific contact-level engagements influence pipeline, sales conversion rates, and closed revenue. Influ2 is commonly used by ABM leaders, demand generation teams, growth marketers, and revenue marketers who share ownership of pipeline and revenue. By giving every team access to the same contact-level insights, Influ2 helps Marketing and Sales stay aligned throughout the buying journey. Enterprises and mid-market companies worldwide, including industry leaders such as Capgemini, AppsFlyer, and Hexaware have used Influ2 to bring ABM to the contact level. From pipeline generation and acceleration to customer retention and expansion, Influ2 is the only contact-level ABM platform built for how B2B buying actually happens.

San Francisco, California, United States

The smarter way to send email. We help marketing, sales, and IT teams unlock the power of employee email to guard their brand and grow their funnel. Manage company-wide email signatures, launch email ad campaigns, uncover sales insights, and meet compliance needs —all within a single platform.

London, England, United Kingdom

Provider of a software-as-a-service consumer insight and engagement platform designed to grow its customer and audience bases by connecting with individuals and audience segments. The company's software-as-a-service consumer insight and engagement platform offers a suite of analysis tools utilizing intelligence gleaned from Twitter, other social sources and by matching email addresses with social media profiles, enabling brands, agencies and marketing professionals to manage their communities, drive their strategies and analyze the characteristics on their Twitter communities.

New York, New York, United States

Blockgraph is a leading privacy-centric identity and data collaboration platform designed to fuel the future of connected TV advertising. The world’s leading media, technology, and information services companies collaborate with trusted partners using Blockgraph’s privacy-focused platform to create and implement identity-based targeting and measurement solutions for multiscreen TV advertising. Blockgraph is owned by Charter Communications Inc., Comcast NBCUniversal, and Paramount. Named a 2024 Programmatic Power Player by AdExchanger, Blockgraph also received the 2023 Cynopsis Measure Up! Award for Best Advancement in Data Privacy, as well as being recognized as a finalist in multiple categories for the 2023 AdExchanger Awards. For more information, please visit Blockgraph at www.blockgraph.co.

Paris, France

Provider of cloud-based platform designed to collect, match and activate data. The company's cloud-based platform allows to standardize data collection at the source, transform it into actionable strategies, enabling businesses to send the right message, at the right time, to every single one of their clients and prospects, whatever their preferred channel and improve relevance and optimize their media budget.

Las Vegas, Nevada, United States

As seasoned industry executives, we recognized a critical gap in the market: a need for a data solution that seamlessly integrates into modern marketing and advertising technologies to facilitate better outcomes securely. To meet this demand, we developed a cutting-edge identity framework and foundational data layer, prioritizing security, compliance, and privacy. Our innovative approach tackles the systemic data challenges plaguing the industry by seamlessly integrating into any operational model and offering flexible commercial terms to cater to diverse client needs. We've meticulously curated an in-house data asset sourced from 68 feeds, capturing a staggering 1.6 trillion consumer events monthly, spanning the entire spectrum of the U.S. adult population across offline and online touchpoints while maintaining full compliance. What sets us apart is our commitment to accuracy and validation. Every consumer data point and digital identifier is deterministically linked and rigorously verified for precision across all connections, empowering you with deep insights into consumer behaviors and preferences. To provide effortless access to our data, we offer three consumer-friendly pathways: Audience Acuity Enterprise Offering: Seamlessly integrate our data into your existing setup, minimizing disruptions to your workflow. Identity Authority Application: Safely access our data through our Snowflake native application, retaining control over your data environment while leveraging our insights. Realink Data as a Service (DaaS) Platform: Gain automated access to our clean room data via Realink, our intuitive DaaS platform, empowering your operations with actionable insights. With these pathways, we aim to eliminate barriers to data access and usage, ensuring a smooth and efficient experience for our clients, no matter their situation or use case.