A martech (marketing technology) stack is the full set of tools a marketing team uses to plan, execute, and measure campaigns — typically including analytics, ad platforms, a CMS, email, a CRM, and increasingly design, commerce, and AI-assisted content tools.
The average martech stack has grown considerably in both size and fragmentation, particularly as AI tools multiply the volume of content and campaigns a team can produce. Most of these tools don’t communicate with each other, which means there’s rarely a single, current, shared picture of what’s actually live across the full stack at any given moment.