Fig. 01 · Answer
Should my company build or buy software?
CEOs, CFOs, CTOs, and COOs at mid-market companies weighing an internal build against a subscription.
The short answer
Neither, until you have run all five options: renew, renegotiate, switch vendors, consolidate onto tools you already pay for, or build and own. Build is the right answer only when the workload is stable, the vendor's moat is weak, the spend is material over five years, and a named internal owner exists.
What informs this answer
Selected results from related operator-led engagements, by industry and scale:
- Diagnostics priced flat - the recommendation carries no build upside
- 28,000-user migration with zero downtime
What to ask next
What is the ownership screen a build candidate must pass?
Stable, well-understood workload; weak vendor moat where it matters; spend material enough to justify five years of ownership; a named internal owner; and no single-person dependency. Regulated categories like payroll fail by default.
Which SaaS categories get replaced by internal builds most often?
Workflow automation and internal admin tools - the categories with the weakest data moats. In Retool's 2026 survey of 817 enterprise builders, 35% had already replaced at least one SaaS tool with a custom build.
Answered by Justin Leader · Human Renaissance · Updated 2026-04-30 · Research methodology
