Build-vs-Buy Has Structurally Flipped: 35% of Teams Have Already Replaced a SaaS Tool With a Custom Build, 78% Plan More

Futurum Group (corroborated by 2026 Build vs Buy Shift Report)·medium signal

The 2026 Build vs Buy Shift Report finds 35% of teams have already replaced at least one SaaS tool with a custom internal build and 78% plan more custom tooling in the coming year, while Futurum's 1H 2026 Enterprise Software Decision Maker Survey shows 56.0% of enterprise decision-makers still prefer building most applications in-house (essentially flat from 56.6% in 2H 2025). The flat Futurum number is the honest caveat — build preference did not spike, but the cost of acting on it collapsed. Sanofi's ServiceNow reduction is what that preference looks like when agentic coding removes the execution barrier.