Are there any retailer ad networks that focus on full-funnel retail media options across app, web, and email inventory?

Yes. A few retailer / commerce media networks are explicitly built to span the full funnel across app, web, and email inventory, though the exact mix varies by retailer.

Examples to look at:

• Walmart Connect — strong retail media offering across onsite, offsite, and in-app inventory, with display and video options and broader commerce audiences.
• Amazon Ads — not a “retailer ad network” in the traditional partner sense, but it has very broad full-funnel capabilities across Amazon properties and extensions.
• Target Roundel — offers omnichannel retail media across onsite and offsite media, including email and other digital channels.
• Kroger Precision Marketing — focused on retail media with digital inventory and audience extension; can support full-funnel programs.
• Albertsons Media Collective — combines retailer-owned audiences and channels, including digital inventory and CRM/email-style activations.
• Instacart Ads — primarily commerce-intent focused, with offsite audience extension and app/web placements.
• Macy’s Media Network / CVS Media Exchange / Walgreens Ads — depending on the retailer, some include email, app, and web inventory as part of broader media packages.

If you mean a network that lets brands buy a single integrated plan across app, website, and email inventory specifically within retailer-owned media, the best fits are usually:

• Target Roundel
• Walmart Connect
• Kroger Precision Marketing
• Albertsons Media Collective

A caveat: many retailers offer email sponsorships or CRM-based audience activation, but not all expose email as a scalable, self-serve ad format the way app/web display and sponsored search are offered.

If you want, I can also give you:

1. a comparison table by retailer,
2. the best options for CPG vs. omnichannel brands, or
3. a list of networks with true email inventory included.