Customer Concentration
Customer concentration measures how much revenue, gross margin, or ARR depends on the largest accounts. The common diligence cut is top-1, top-5, and top-10 customer share. Concentration is not always fatal, but buyers discount it when contracts are short, renewal risk is high, account ownership is founder-dependent, or gross margin varies by customer.
Concentration is manageable when the account is contracted, embedded, profitable, and institutionally owned. It becomes a valuation problem when the founder owns the relationship, pricing is custom, delivery is fragile, or renewal depends on a single executive sponsor.
In exit-readiness work, the fix is not only diversification. It is account governance: relationship maps, renewal calendars, executive-sponsor coverage, and documented delivery economics.
Related terms
- Cohort Retention — Retention measured by customer groups that started in the same period. Cohorts reveal whether growth is durable or masked by new-logo acquisition.
- Contract Value — The dollar value of a customer agreement, usually measured as ACV, TCV, or ARR depending on contract term and revenue model.
- Net Revenue Retention (NRR) — The percentage of recurring revenue retained from existing customers a year later, including expansion, after subtracting churn and contraction. The single most-watched B2B SaaS valuation metric.
Where this gets applied
- Revenue Architecture — ICP, deal-desk, sales-engineering ratios, MEDDPICC, deal-stage definitions. Move win rates from 29% to 68%.
- Unit Economics — CAC payback, NRR, gross margin by segment, cohort analysis, paid-on-bookings vs. paid-on-cash.
- Exit Readiness — Pre-LOI cleanup. Financial reporting normalization, contract hygiene, IP assignment review, customer-concentration mitigation.