Best Ad Servers logo

Best White-Label Ad Servers (2027)

White-label ad servers let networks, agencies and publishers offer ad serving or a self-serve ad portal under their own brand. These options are listed alphabetically.

Illustration representing best white-label ad servers

Disclosure: Best Ad Servers is published by the AdButler team. AdButler appears in these rankings. Scores follow our published methodology. Learn more.

Sort:Our rankingA–Z

AdButler

Best for: Mid-size and enterprise publishers, multi-site media groups, newsletters and retail media networks that want an independent ad server with strong support.

AdButler is an independent, full-featured ad server that lets publishers traffic direct-sold display, native, video and email newsletter campaigns from one platform, without ties to a competing ad exchange. It scores highest overall in our methodology for its combination of neutrality, transparent pricing, a deep API and hands-on support.

  • Display
  • Native
  • Video (VAST)
  • Email newsletter
  • In-app
  • Sponsored listings
9.3/10 Read review

Adnuntius

Best for: European news publishers that want ad serving plus a self-serve advertiser portal.

Adnuntius is a European ad server that combines publisher ad serving with a self-serve advertising portal and data tools. It is popular with news publishers in the Nordics and wider Europe.

  • Display
  • Native
  • Video
  • Self-serve ads
7.7/10 Read review

Epom

Best for: Ad networks and agencies that need a white-label ad server.

Epom provides a white-label ad server that ad networks, agencies and publishers can brand as their own. It covers display, video and mobile formats at a mid-market price point.

  • Display
  • Video (VAST)
  • Mobile
  • Native
7.1/10 Read review

Kevel

Best for: Engineering-led teams building custom ad products or retail media networks.

Kevel (formerly Adzerk) provides API-first ad serving infrastructure that engineering teams use to build custom ad platforms and retail media networks. It is a strong choice for companies with in-house developers, but it expects more technical work than turnkey ad servers.

  • Native
  • Display
  • Sponsored listings
  • Custom JSON ads
7.9/10 Read review

Last reviewed October 30, 2026. See the overall rankings and our methodology.

Not sure which ad server fits?

Tell us about your sites, newsletters and goals and our editors will point you to the right shortlist.

Ask our editors