- Acxiom
- Audience Solutions S.A.
- BlueConic
- digitalAudience B.V.
- Experian LTD
- Eyeota Pte Ltd
- ID5 Technology Ltd
- Little Big Data sp. z o.o.
- LiveRamp
- Lotame Solutions, Inc
- Meta
- Piano.io (former CXense)
- Relay42 Netherlands B.V.
- Semasio GmbH
- Spotler Group
- The Newco S.r.l.
- The UK Trade Desk Ltd
- TikTok
- Dentsu A/S
- Dentsu Italia SpA
- Publicis Media GmbH
- GroupM UK Limited
- Havas Media (Artemis Alliance S.L.U.)
- Tealium
- Initiative Media Warszawa Sp. z o.o.
- UNIVERSAL MCCANN Sp. z o.o.
- AdCarousel
- Adform
- Adlook
- Adobe Advertising Cloud
- AdobeAM
- Adsquare Gmbh
- Adverity
- Agora S.A.
- ALDI Nord
- Allegro.pl Sp. z o.o.
- Amazon Advertising
- AWS Clean Rooms (Amazon Web Services)
- Azure Confidential Computing (Microsoft)
- Bauer Media Sp. z o.o.
- BidTheatre
- Biedronka Jeronimo Martins Polska S.A
- Blix Group Sp. z o.o.
- Circana GmbH
- Cloud Technologies S.A
- Coca-Cola
- comscore, Inc.
- Criteo ID
- Decentriq AG
- Dentsu Product & Services GmbH
- Disney
- EDGE NPD Sp z o.o.
- Equativ
- Gemius SA
- GfK
- Google Ads Data Hub (ADH)
- Google Advertising Products
- Google Cloud Clean Room (BigQuery)
- GoogleDDP
- Group One Media sp. z o.o.
- Grupa Interia.pl Sp. z o.o.
- Improve Digital
- Infosum
- Initiative Media Warszawa
- Integral Ad Science
- Inteliad
- IPG / MediaBrands
- Lidl Polska Sklepy Spozywcze Sp. z o.o.
- Listonic Sp. z o.o.
- Mastercard
- Mediaplus Warsaw sp. z o.o.
- mgid
- Netflix
- NetID
- Netscore
- Nielsen
- NielsenIQ
- Omicom
- Omnicom Media Group
- Onet Ringier Axel Springer Polska sp. z o.o.
- Payback
- Pepsi
- Performers sp. z o.o.
- PGP HUB sp. z o.o.
- PHD Media Direction
- Platform 161
- Procter & Gamble
- Pubmatic
- Qommerce
- RL Media sp. z o.o.
- RTB House S.A.
- Salestube sp. z o.o.
- ShopeyeQ
- Spotify
- Starcom sp. z o.o.
- Teads
- Telewizja Polska Spólka Akcyjna
- The Trade Desk
- Uber
- Unilever
- Unilever Polska sp. z o.o
- Universal McCann
- UTIQ
- Value Media sp. z o.o.
- VISA
- Warner Bros. Discovery
- Wawel S.A.
- Wirtualna Polska Holding S.A
- Wpp
- X (formerly Twitter)
- Xandr, Inc.
- Xaxsis Inc.
- Yahoo EMEA Limited
- YOC AG
- Zalando
- Zenith Poland sp. z o.o.
- Zeotap
- Zabka Polska Sp. z o.o.
- TVN Media Sp. z o.o.
- Rossmann Supermarkety Drogeryjne Polska Sp. z o.o.