Companies

Agentic advertising company, formerly Scope3. Apostra gives advertisers and their AI agents direct access to media across display, CTV, audio and out-of-home, built on the Ad Context Protocol (AdCP) that Scope3 helped create. It rebranded from Scope3 in September 2026, shifting its focus from sustainability measurement to AI agent-led ad buying.

Birst was a cloud-based business intelligence and analytics platform that was acquired by Infor in 2017 and integrated into their analytics offerings.

Conductor is an enterprise SEO and content intelligence platform that helps brands improve organic search performance and drive measurable revenue through data-driven insights.

Contentful is a content management platform that helps AdTech and MarTech companies create and manage digital experiences across multiple channels.

Cross-device identity resolution company acquired by Oracle in May 2016. Provided device-graph capabilities for matching users across mobile, desktop, and connected TV. Integrated into Oracle Data Cloud. Discontinued with Oracle's 2024 advertising-business exit.

New York creative advertising agency, formerly Deutsch New York (the NY lineage of Deutsch, split into a separate business in October 2020). Sold by Interpublic Group to New Zealand’s Attivo Group in January 2024 and now operates as DNY, independent of IPG/Omnicom.

E-commerce platform that enables businesses to add online stores to existing websites, social media pages, and marketplaces.

Grabarz & Partner is a Hamburg creative advertising agency known for idea-driven campaigns for brands such as Volkswagen and IKEA. Omnicom acquired it in 2023; it keeps its name within Omnicom's Diversified Agency Services.

UK trade body representing advertisers (Incorporated Society of British Advertisers).

Mautic is an open-source marketing automation platform that empowers businesses to manage email campaigns, lead nurturing, and customer journeys — now part of Acquia following its 2019 acquisition.

Mintigo was a B2B predictive marketing and sales intelligence platform that used machine learning to help companies identify and prioritize ideal prospects.

Perfect Audience was a retargeting platform that enabled small and medium-sized businesses to run display and social media retargeting campaigns across multiple channels.

Data analytics and business intelligence platform that was acquired by Sisense in 2019, enabling data-driven teams to analyze and visualize complex datasets.

PromoteIQ was a retail media technology platform acquired by Microsoft in 2019 that enabled retailers to monetize their digital properties through vendor-funded advertising — shut down in July 2024 when Microsoft transitioned to a Criteo partnership.

ReachLocal was a digital marketing platform that provided online advertising and marketing solutions to small and medium-sized businesses before being acquired by Gannett in 2016.

A performance marketing agency within IPG Mediabrands specializing in search, social, commerce, and programmatic media buying and optimization.

Smartlook is a qualitative analytics platform that provides session recordings, heatmaps, and event tracking to help businesses understand user behavior on websites and mobile apps.

Paris-headquartered data consultancy acquired by Havas in 2024. Integrated into the Havas Creative Network.

New York digital and innovation agency acquired by Cheil in stages (2009-2014, ultimately 100%). Significantly diminished from its 2010s peak — Boston and San Francisco offices closed by 2012; ~40% staff reduction in subsequent years — but continues to operate as a single-office NY shop under Cheil ownership. Sources: Digiday post-mortem + Wikipedia.

Whalar is an advertising technology company specializing in contextual advertising solutions designed for the privacy-first digital ecosystem. The company's platform leverages advanced artificial intelligence, machine learning, natural language processing, and computer vision technologies to analyze website content and deliver precisely targeted advertisements based on contextual relevance rather than invasive user tracking or third-party cookies. This innovative approach enables brands to co...

Wix is a leading cloud-based development platform that enables millions of users worldwide to create professional websites and online presences. It offers a powerful drag-and-drop website builder, a wide range of templates, and integrated business solutions for e-commerce, marketing, and more. The platform empowers individuals and businesses to build, manage, and grow their online presence without needing coding skills.

Zarget was a conversion rate optimization and A/B testing platform that was acquired by Freshworks in 2016 and integrated into Freshworks' marketing automation suite.

AppsFlyer Privacy Cloud is AppsFlyer's privacy-preserving data collaboration platform for advertisers, ad networks and app developers. It was announced in December 2021 with Intel, and its first component was Data Clean Rooms, where partners pool data and see only aggregated results.

UK creative agency founded 2005, in which Cheil Worldwide acquired a 49% stake in 2010 and later moved to majority control. Continues to operate under Cheil ownership; UK Companies House lists status "Active" with 2023 accounts filed. Sources: gov.uk Companies House + SI Global deal advisory.