The Interpublic Group of Companies, Inc. provides advertising and marketing services worldwide. It operates in three segments: Media, Data & Engagement Solutions, Integrated Advertising & Creativity Led Solutions, and Specialized Communications & Experiential Solutions. The Media, Data & Engagement Solutions segment provides media and communications services, digital services and products, advertising and marketing technology, e-commerce services, data management and analytics, strategic consulting, and digital brand experience under the IPG Mediabrands, UM, Initiative, Kinesso, Acxiom, Huge, MRM, and R/GA brand names. The Integrated Advertising & Creativity Led Solutions segment offers advertising, corporate, and brand identity services; and strategic consulting under FCB, IPG Health, McCann Worldgroup, and MullenLowe Group brands. Specialized Communications & Experiential Solutions segment provides public relations and other specialized communications services, live events, sports and entertainment marketing, and strategic consulting under IPG DXTRA Health, The Weber Shandwick Collective, Golin, Jack Morton, Momentum, and Octagon brand names. The company was formerly known as McCann-Erickson Incorporated and changed its name to The Interpublic Group of Companies, Inc. in January 1961. The Interpublic Group of Companies, Inc. was founded in 1902 and is headquartered in New York, New York.

WPP plc, a creative transformation company, provides communications, experience, commerce, and technology services in North America, the United Kingdom, Western Continental Europe, the Asia Pacific, Latin America, Africa, the Middle East, and Central and Eastern Europe. The company operates through three segments: Global Integrated Agencies, Public Relations, and Specialist Agencies. It offers marketing strategy, creative ideation, production, commerce, influencer marketing, social media management, and technology implementation services; media strategy, planning, buying and activation, commerce media, data analytics, and consulting services; and media management, public affairs, reputation, risk and crisis management, social media management, and strategic advisory services. The company also provides brand consulting, brand identity, product and service design, and corporate and brand publication services. WPP plc was founded in 1985 and is based in London, the United Kingdom.

IAC Inc., together with its subsidiaries, operates as a media and internet company worldwide. The company publishes original and engaging digital content in the form of articles, illustrations, and videos and images across entertainment, food, home, beauty, travel, health, family, luxury, and fashion areas; and magazines related to women and lifestyle. It also operates a digital marketplace that connects home service professionals with consumers for repairing, remodeling, cleaning, landscaping, maintenance, and enhancement services under the Angi Ads, Angi Leads, and Angi Services brands. In addition, the company operates websites that offer general search services and information, including Ask.com, a search site with a variety of fresh and contemporary content; Reference.com that offers content across select vertical categories; Consumersearch.com, which offers content designed to simplify the product research process; and Shopping.net, a vertical shopping search site that contains a mix of search services and/or content targeted to various user or segment demographics, as well as offers direct-to-consumer downloadable desktop applications. Further, it offers Care.com, an online destination for families to connect with caregivers for their children, aging parents, pets, and homes; develops and provides subscription mobile applications across the communication, language, weather, business, health, and lifestyle verticals; a technology driven staffing platform for flexible W-2 work under the Bluecrew name; a platform to connect healthcare professionals with job opportunities under the Vivian Health name; The Daily Beast, a website dedicated to news, commentary, culture, and entertainment that publishes original reporting and opinion; and production and producer services for feature films for sale and distribution through theatrical releases and video-on-demand services. The company was formerly known as IAC/InterActiveCorp. The company is headquartered in New York, New York.

Stagwell Inc. provides digital transformation, performance media and data, consumer insights and strategy, and creativity and communications services. The company operates through three segments: Integrated Agencies Network, Brand Performance Network, and Communications Network. It designs and builds digital platforms and experiences that support the delivery of content, commerce, service, and sales; creates websites, mobile applications, back-end systems, content and data management systems, and other digital environments; designs and implements technology and data strategies; and develops software and related technology products, including artificial intelligence (AI)-enabled communications, research, and media technology, cookie-less data platforms for advance targeting and activation, software tools for e-commerce applications, specialty media solutions in the augmented reality space, and text messaging applications for consumer engagement. The company also provides audience analysis, and media buying and planning services; and strategic insights and guidance services that offers business content, product, communications, and media strategies. In addition, it offers strategy development, advertising creation, live events, immersive digital experiences, cross platform engagement, and social media content services; and leadership, investor and financial relations, social media, executive positioning and visibility, strategic communication, public relation, and public affair services. Further, the company provides Stagwell Marketing Cloud, a suite of software-as-a-service (SaaS) and data-as-a-service (DaaS) technology solutions, including research and insights, communications technology, advance media platform, and media studios; and technology-driven solutions for in-house marketers. Stagwell Inc. is headquartered in New York, New York.

Innovid Corp. operates an independent software platform that provides ad serving, measurement, and creative services. It offers advertising services for the creation, delivery, and measurement of TV ads across connected TV, mobile TV, and desktop TV environments to advertisers, publishers, and media agencies. The company serves consumer packaged goods, pharmaceutical and healthcare, retail, financial services, and automotive and technology industries; third party agencies; and publishers in the United States, Canada, Europe, the Middle East, Africa, Latin America, and the Asia Pacific. Innovid Corp. was incorporated in 2007 and is headquartered in New York, New York.

Fluent, Inc. provides data-driven digital marketing services in the United States and internationally. The company operates through Fluent and All Other segments. It offers customer acquisition services by operating digital marketing campaigns, through which the company connects its advertiser clients with consumers. The company also delivers data and performance-based marketing executions to various consumer brands, direct marketers, and agencies across a range of industries, including financial products and services, media and entertainment, health and life sciences, retail and consumer, and staffing and recruitment. Fluent, Inc. was founded in 2010 and is headquartered in New York, New York.

SPAR Group, Inc., together with its subsidiaries, provides merchandising and brand marketing services in the Americas, the Asia-Pacific, Europe, Middle East, and Africa. The company offers merchandising and marketing services, such as resets and cut-ins; price and inventory audits; stock replenishment and rotation services; out of stock management; promotional event setup; and display management, as well as category management and set up services comprising category and product resets; planogram maintenance; display and shelf services; and point of purchase installation and management. It also provides remodel and retail transformation consisting of store remodels, store department resets, fixture and banner installations, pop-up store services, and store closings; and assembly and installation services, including assembly of merchandise in stores, in-store services, office setup/down-sizing services, and national in-home furniture assembly services. In addition, the company offers business analytics and insights services, such as product dashboards, stock out reporting, visit reporting, real-time service insights, and share of shelf analytics; and fulfillment and distribution services comprising distribution center staffing, point of purchase fulfillment services, kiosk prep, returns processing, picking and packing services, and inventory services. The company serves mass merchandisers; HBAs; pharmacies; and grocery, discount, dollar, convenience, cash and carry, home improvement, consumer electronics, automotive aftermarket, office supply, personal technology, beverage, household products, consumables, financial products, and independent stores. SPAR Group, Inc. was founded in 1967 and is headquartered in Auburn Hills, Michigan.

AdTheorent Holding Company, Inc., a digital media platform, provides programmatic digital advertising services for advertising agency and brand customers in the United States, Canada, and internationally. It uses machine learning and advanced data science to organize, analyze, and operationalize non-sensitive data to deliver real-world value for customers. The company offers predictive targeting solutions across various customer industry verticals and consumer screens, including customized targeting, measurement, and analytical services; and location-based targeting and geo-intelligence solutions. AdTheorent Holding Company, Inc. was founded in 2012 and is headquartered in New York, New York. As of June 21, 2024, AdTheorent Holding Company, Inc. operates as a subsidiary of Cadent, LLC.