Enterprise ABM is account-based marketing run against large organisations, where the buying committee spans multiple functions and regions, deal cycles run long, and a single account may involve dozens of stakeholders. The defining constraint is complexity rather than budget: the programme has to coordinate across more people, for longer.
Three things. The buying committee is larger and more distributed, so reaching one champion is not progress. The cycle is long enough that a campaign has to sustain relevance across quarters. And procurement, security and legal each introduce stakeholders who were never the audience for the marketing.
Not necessarily, and this is where budgets get spent badly. Enterprise programmes need coordination and durable account context. Whether that comes from a six-figure platform or a lean stack depends on how many accounts you run and how much of the work is production rather than orchestration.
Production capacity, usually. A programme that can build for twenty accounts cannot build for two hundred just by trying harder, and the failure shows up as campaigns that launch late rather than as campaigns that fail.
Userled is built for running enterprise programmes without adding headcount. See lean ABM for what that looks like in practice.