106 shut down AdTech companies

Microsoft Invest was Microsoft's demand-side platform (DSP) for programmatic advertising, evolved from AppNexus and Xandr Invest, scheduled …

Amazon Freevee was Amazon's free, ad-supported streaming service that offered movies, TV shows, and original content before being folded int…

Meta Spark AR was Meta's augmented reality platform that enabled creators and brands to build immersive AR effects for Instagram and Faceboo…

Amazon Ad Server (formerly Sizmek) is Amazon's enterprise-grade ad serving and creative management platform, enabling advertisers and agenci…

Oracle Data Cloud was Oracle's flagship data and audience intelligence platform for advertisers, combining BlueKai, Datalogix, Moat, and Gra…

Sizmek was a leading independent ad serving and programmatic advertising platform that powered campaigns across display, video, mobile, and …

Flurry Analytics was a pioneering mobile app analytics platform that provided developers and marketers with deep insights into user behavior…

InVision was a leading cloud-based design collaboration platform that helped product teams create interactive prototypes and streamline desi…

Salesforce Social Studio was an enterprise social media management and listening platform, now sunset as Salesforce shifts social capabiliti…

Google Optimize was a free A/B testing and website optimization tool that was part of Google Marketing Platform until its sunset in Septembe…

Social bookmarking and sharing widget company acquired by Oracle in January 2016 for $200M.

Stitcher was a podcast streaming platform and network that provided on-demand audio content and podcast advertising solutions before being s…

Gimlet Media was a podcast production company and network that created narrative podcasts and was acquired by Spotify in 2019.

Spotify's live audio chat product (acquired Locker Room March 2021, rebranded to Greenroom June 2021).

French location-sharing social-app.

IMDb TV Ads was Amazon's advertising product for its free, ad-supported streaming service IMDb TV, offering brands access to premium streami…

CNN+ was Warner Bros.

Chartio was a cloud-based business intelligence and data visualization platform that enabled non-technical users to explore and analyze data…

Brain-computer interface startup acquired by Snap March 2022.

Snap's AR-camera drone (the 'Pixy').

AR avatar/3D body tracking startup acquired by Snap 2021.

3D mapping startup acquired by Snap 2021 for $7.6M.

Ukrainian AI/computer vision startup acquired by Snap Jan 2020 for $166M.

Chitika was a search-targeted online advertising network that served billions of ads monthly to publishers outside of Google's ecosystem, sp…

Videology was a video advertising platform that provided software for buying, selling, and optimizing video ad campaigns across TV and digit…

Cimagine Media was an Israeli augmented reality startup that enabled consumers to visualize products in their real-world environments before…

Search/discovery app acquired by Snap July 2016 for $114.5M.

Ukrainian computer vision startup acquired by Snap Sep 2015 for $150M.

Offline consumer purchase data platform acquired by Oracle in December 2014 for $1.2B.

Smart-glasses startup acquired by Snap March 2014 for $15M.

MoPub was a leading mobile-focused ad serving platform and exchange that enabled app publishers to monetize through programmatic advertising…

Pioneering SSP founded 2007.

Facebook Local Awareness Ads was a hyper-local advertising format launched by Facebook in 2014, enabling small businesses to target users wi…

Oracle Advertising was Oracle's adtech division offering data-driven advertising solutions, shut down by September 2024 after an 85% revenue…

Advertising.com was a pioneering digital advertising network and performance marketing platform that operated from 1998 until its integratio…

Content.ad is a digital advertising technology platform specializing in content discovery and native advertising solutions that connect publ…

Crackle Plus is an ad-supported streaming platform and content distribution network offering free, premium video content to consumers while …

LiveRail was a programmatic video advertising platform acquired by Facebook August 2014 (~$500M).

Moat was a leading ad measurement and analytics platform acquired by Oracle for $850M in 2017, shut down in September 2024 as part of Oracle…

OnAudience was a global data marketplace and DMP provider specializing in third-party audience segments for programmatic advertising, operat…

Oracle BlueKai was a leading data management platform (DMP) that enabled marketers to collect, manage, and activate audience data for target…

Oracle Moat was a leading digital advertising measurement and analytics platform that provided viewability, attention, and brand safety metr…

Salesforce's data management platform (DMP) that enables marketers to unify customer data and create targeted audience segments for personal…

Salesforce DMP (formerly Krux) was a data management platform that enabled marketers to unify, segment, and activate audience data across di…

Yahoo's unified native and search advertising platform that sunset in April 2023, with its capabilities redistributed to Yahoo Native (via T…

Adbrain was a cross-device identity resolution platform that helped advertisers track and target users across multiple devices before being …

AdProfy is a digital advertising technology platform that operates as a dual-sided marketplace connecting publishers and advertisers through…

Atlas Solutions was an ad server acquired by Facebook from Microsoft in 2013 (~$100M).

Bidsopt is a programmatic advertising platform offering a full-stack DSP and SSP solution for agencies, advertisers, and publishers.

Convertro was a marketing attribution and analytics platform that helped advertisers measure cross-channel campaign performance before being…

Crackle was a free, ad-supported streaming video service that offered movies and TV shows before shutting down in April 2025 following its p…

CrowdTangle was a social media analytics tool acquired by Facebook November 2016 — provided journalists, researchers, and brands with monito…

DigiTrust was an IAB Tech Lab initiative that provided a standardized, privacy-focused user identity solution for digital advertising, aimin…

Eyeview was a video advertising platform specializing in personalized, outcome-driven video ads at scale before shutting down in December 20…

Grapeshot was a contextual intelligence and brand safety platform that used AI to analyze web content, acquired by Oracle in 2018 and integr…

Defunct ad-tech holding company founded 2014 by Gurbaksh Chahal as a serial acquirer.

IgnitionOne was a leading digital marketing technology platform that provided cross-channel campaign management, audience scoring, and custo…

Ligatus was a Cologne, Germany-based native advertising platform — leading native ads in Europe with 37B+ monthly impressions pre-acquisitio…

LockerDome was a St.

Onavo was a mobile analytics + VPN company acquired by Facebook October 2013 (~$120M).