5TACK is a fractional RevOps and marketing operations consultancy that makes the systems beneath the business sound so everything built on top of them can be trusted. We work as embedded operators inside HubSpot, not vendors who hand off a build and walk away.Most growth problems aren't marketing problems. They're infrastructure problems. A broken lead-to-sales handoff, a CRM full of duplicate records, attribution that can't tie spend back to revenue — any one of these quietly collapses the value of every dollar spent upstream. 5TACK diagnoses your tech stack, identifying where your revenue chain is breaking, repairs the weakest link, and builds the automation and reporting layer that keeps it fixed. We serve B2B teams across all industries, with specialization in health tech, financial services, legal, and government contracting, and companies that have outgrown their operations and need a senior operator, not another tool to operate.