B2B Data Brokers

Advertising company that offers a platform for adblock advertising, meaning the delivery of digital advertising to adblock users.

Digital advertisement company, delivering insights and ad personalization by leveraging first-party user data and third-party user behavior data.

Helps businesses to target custom audiences: provides insights on over 250 million people.

B2B marketing solutions provider, offering lead generation, demand drive, and pipeline improvement services.

Holds approximately 275 million personal contact records and a dataset covering 73 million companies. The Apollo database includes business and personal information gathered from various sources, such as public profiles and proprietary databases. This collected information can be shared or sold for marketing purposes.

Digital marketing company specializing in email marketing. Engaged in direct marketing, affiliate marketing, and online advertising.

Advertising agency offering to efficiently connect companies with their audiences.

Sells verified and targeted business-to-business email lists of people in the US, UK, Canada, Europe and Asia, tailored to its clients’ needs. Data includes email addresses, phone numbers, postal addresses, job titles, departments, industries and more.

Platform for recruitment teams to find and manage talent. Uses machine learning and predictive analytics to study candidate information and compare it to millions of other profiles to reveal key character traits and suitability for open roles. Claims to have complete professional profile data on each professional in their 500 million-person database.

Serves as a tool for enhancing relationship management, yet its operations involve the collection and organization of personal data. Clay integrates first-party data, intent data, and third-party data from over 100 external sources into a single platform to sell it to its customers. This data is sold for various purposes, including marketing, data enrichment, and personalized outreach. This information contains both personal and professional contact details, job titles, and employer information.

Holds over 3 million contact records and provides more than 1.9 million search results related to individuals' professional and personal information. This includes business and personal contact details, employment history, and other sensitive data. The company shares this information with third parties, including data partners.

Digital marketing company providing digital marketing and display advertising solutions. Offers to drive qualified traffic to brands’ sites and increase customer conversion rates.

Definitive Healthcare, data broker, holds an extensive database containing over 2.6 million profiles of hospitals, physicians, health systems, and other healthcare providers. Additionally, it holds tens of billions of hospital and medical claims from third-party commercial payors. The company collects personal data, including names, email addresses, residential addresses, and phone numbers. This data is shared or sold to medical supply companies, primarily for targeted advertising and marketing purposes.

Delivers data management services and makes various data sets available to its customers. Enables organizations to solve business problems through the use of its data and infrastructure. Collects names, postal addresses, and email addresses.

Software product, online tool and talent acquisition services provider, offering a career marketplace for hiring managers and recruiters to search for and match and connect with individuals, particularly across the technology vertical and those with active government security clearances.

Provides identity verification solutions and helps businesses to make accurate risk decisions about their customers. Collects names, email addresses, physical addresses, and phone numbers.

Sales and marketing service for hotels and resorts, other hospitality industry businesses, meeting industry suppliers, and hospitality marketing agencies. Claims to have data on 100,000 businesses and travelers.

Marketing services company offering a platform that includes millions of consumer profiles updated daily from exclusive data sources.

“Artificial intelligence” based recruitment platform.

Marketing company offering an identity resolution platform which helps to deliver insights and personalised ads through managing a wide range of personal data about consumers.

Advertisement insight company offering bespoke studies of user audiences by processing data from several online platforms and collecting data from various data-partner segments, models, and processes. It packages these data into unbranded and branded segments before making them available for targeted advertising purposes.

Recruitment data broker that uses machine learning to enrich 750+ million individual profiles and maintains 1.6 trillion data points.

An online genealogy service hosting billions of searchable records of census, directory and historical record information.

Claims that its machine-learning technology focuses on real-time consumer activity and behavior, connecting its clients with high-value prospects and identifying new audiences based on intent and behavior. Helps to optimize messaging and campaign delivery strategies by connecting companies with consumers who are ready to act.

In-game advertising platform for video games and esports. May collect different data including personally identifiable information through gamers’ computers, mobile phones or other access devices.

Online advertising company offering publishers the service of identifying and addressing their audiences by running advertisement campaigns.

Offers access to personal data for real estate and marketing use.

Data-driven lead generation company helping marketing and sales teams to understand intent signals of leads by combining millions of data sources and personalizing content.

Claims to have data on 240 million consumers and 165 million households as well as 600 million unique emails. Such user data is used for direct mail, email, and telemarketing campaigns. Provides thousands of segments to choose from (new movers, homeowners, students, parents, retirees, voters, etc.).

200M unique email addresses, 25B authenticated data signals

Holds extensive consumer data, including names, addresses, Social Security numbers, education, and employment history. The company shares this information with leading corporations across various industries for commercial purposes, like direct marketing.

Provides intelligence for content customization, advertising, digital rights management, and compliance as well as fraud detection and risk scoring data to identify high-risk activity in ecommerce payments, platform user activity, incentivized traffic, and more. Claims to offer insights into types of users by IP address for more targeted advertising and personalized promotions.

Maintains a database containing information on over 200 million consumers and over 14 million companies' mailing lists. The company holds over 250 million contact records, including but not limited to mailing addresses, email addresses, and phone numbers. This personal information is collected from other data brokers and public sources, and it’s sold to other companies or consumers for purposes such as address validation, identity verification, and marketing.

Media company providing advertising services by using first-party data and sales-ready leads.

Manages a vast dataset containing 3.1 billion individual records, including 1.1 billion email addresses, 1.1 billion phone numbers, and a lot of other personal information. This information is then shared with third parties for purposes like fraud mitigation, identity resolution, and marketing.

Delivers data management services and makes various data sets available to its customers. Enables organizations to solve business problems through the use of data and infrastructure. Collects names, postal addresses, and email addresses.

Manages a large database with information on over 265 million individuals. The company collects personally identifiable details, including names, email addresses, mailing and physical addresses, dates of birth, and phone numbers, among others. This information is obtained directly from consumers or from third-party sources such as public records and data compilers. RevOptimal shares consumer data with other companies for marketing purposes.

Sales intelligence platform and B2B contact data provider. Offers solutions for marketing, sales, and recruitment. Claims to have machine-processed data on 60+ million contacts.

Collects and maintains a database containing consumer information, which may include details such as names, email addresses, phone numbers, and others. This information is reportedly shared or sold to other businesses for purposes such as targeted advertising and other commercial activities.

B2B marketing company that collects and maintains personally identifiable information (PII), including names, email addresses, residential addresses, phone numbers, and other personal identifiers. This information is shared with other businesses for targeted marketing purposes.

Advertising platform that helps advertisers target consumers.

B2B lead generation and email verification service. Claims to hold 54 million B2B contacts with email addresses, 14 million company profiles, and 16,000 ”technologies” data points, with a claimed 95% data accuracy and coverage across 200+ countries.

Provides data for real estate, finance, media, retail, and adtech industries. Claims to have location, device, app usage, transaction, search, and email data.

Manages a comprehensive database of global consumer information, including names, email addresses, residential addresses, dates of birth, phone numbers, and other personal details. This information is shared with third-party companies for commercial purposes.

People search data broker, built in Europe. Data collected: Name, surname, address, employment history, social media accounts, education, interests, telephone number, classmates, email address,