PE Operating Partners running 100-day plans need a measurable number, not status updates. Status updates are how integrations fail without anyone noticing until day 90, when the LOI assumptions are already in retreat. The 100-Day Integration Velocity Score exists because we got tired of writing post-mortems on integrations that “felt fine in week six” and produced 80% retention at day 180.
What the score predicts
The Score is based on Human Renaissance integration engagements where we tracked both the day-100 metric and the day-180 retention outcomes. The correlation is consistent: Velocity Score above 75 at day 60 produces customer retention above 95% at day 180. Velocity Score below 50 at day 60 produces customer retention below 85%, regardless of what the headline status report said at the time.
The six dimensions
Each dimension has a published cohort benchmark in days-to-completion. The cohort is aggregated from Human Renaissance engagements and refreshed quarterly. Dimensions are weighted differently — single SSO and merged engineering on-call carry the most retention signal because they touch end-user experience and engineering attrition simultaneously.
The cohort dataset
The aggregated benchmarks ship at /research/turnaround-index-2026 (Tech Middle-Market Turnaround Index) with a downloadable CSV and methodology page. Individual engagement data stays confidential.
Where the Score gets used
In every Migration & Integration engagement, the topic hub for which is here, and in every Performance Improvement engagement that touches a recently-acquired entity. We measure it weekly, surface trend lines in the Operating Partner dashboard, and use it to escalate weeks before the integration would otherwise show up as a problem.