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This roundtable explores how B2B teams can use modern demand strategies, B2C channels, and incrementality testing to prove true ad impact in 2026. The conversation highlights omni-channel expansion beyond LinkedIn, data-driven measurement, and practical ways to validate lift across pipeline and revenue.


Speakers and Roles
Matt Sciannella – Host and practitioner running paid media for multiple B2B clients; shares real client use cases, lift results, and practical frameworks for measurement and experimentation.
Keith Putnam-Delaney – CEO of Primer; former Dropbox growth leader; expert in B2B expansion into B2C channels, audience targeting, mobile–desktop measurement problems, match rates, and lift testing.
Authority: Both speakers bring hands-on experience running B2B paid programs at scale and deep insight into attribution limits, ABM constraints, and cross-channel growth strategies.

Topics Covered

  • Rising costs and saturation in traditional B2B channels (LinkedIn, Google).

  • Why B2B brands must expand into B2C channels like Meta, YouTube, Reddit, TikTok.

  • Mobile vs. desktop measurement gaps and cross-device limitations.

  • Signal loss, attribution decay, and the need for server-side events.

  • How to validate true impact using lift tests and incrementality.

  • CPM efficiency comparisons across channels.

  • ABM unbundling and alternatives to large, monolithic ABM platforms.

  • Using holdout groups, geographic lift, and omnichannel testing strategies.

  • Real client examples showing lift in inbound, share of search, and revenue.

  • How audience targeting tools unlock TAM expansion outside LinkedIn.

Questions This Video Helps Answer

  • How do B2B marketers prove real ad impact without relying on last-touch attribution?

  • How can brands expand beyond LinkedIn and still target ICP buyers effectively?

  • What causes demand generation inefficiency and how do you fix it?

  • How do mobile–desktop and cross-device gaps distort performance data?

  • What is the right way to design lift tests or incrementality experiments?

  • How can small TAM companies still scale using B2C channels?

  • What alternative ABM workflows exist beyond large enterprise platforms?

  • How should B2B teams interpret rising CPMs and shrinking reach?

Jobs, Roles, and Responsibilities Mentioned

  • B2B growth marketing

  • Growth teams

  • Sales operations managers

  • Revenue operations roles

  • VPs of Marketing

  • Regional sales directors

  • Medical device surgeons (ICP example)

  • Marketing, sales, finance

  • Infosec teams

  • PLG teams

  • Field marketing

  • Outbound sales teams

Key Takeaways

  • Attribution alone cannot prove channel value; lift tests reveal true incrementality.

  • B2B audiences exist far beyond LinkedIn, and CPM efficiency is often dramatically higher on Meta, Reddit, and YouTube.

  • Mobile-heavy consumption breaks MTA models; server-side signals and conversion APIs are now essential.

  • ABM can be unbundled using smaller, more flexible tools and alternative data sources.

  • Expanding TAM and using audience targeting unlocks more reach and stronger pipeline outcomes.

  • Share of search is a powerful leading indicator for demand creation impact.

  • Omnichannel experimentation paired with structured test design improves confidence with finance and executive teams.

Frameworks and Concepts Mentioned

  • Incrementality testing

  • Holdout groups

  • Channel-based lift tests

  • Geographic lift tests

  • Account list split testing

  • Leading vs. lagging indicators

  • Share of search analysis

  • Server-side conversion APIs (CAPI)

  • Cross-device measurement

  • Audience match rates

  • ABM unbundling

  • CPM efficiency analysis

Więcej odcinków z kanału "Stacking Growth | The B2B Marketing Podcast"