The First 100 Days: A Portfolio Company Onboarding Playbook

The first 100 days after a deal closes are critical for establishing reliable visibility into a portfolio company. Yet financial data, operating metrics, and reporting often remain scattered across systems, slowing down the work that operating partners and portfolio teams need to begin.

This playbook introduces the 4C framework for structuring those first 100 days: Connect, Certify, Consolidate, and Communicate. It walks through how to connect core financial systems, establish certified metric definitions, consolidate portfolio reporting, and ensure board-level reporting is based on governed data.

Designed for operating partners and portfolio CFOs, the playbook also includes phase-by-phase checklists and a complete 100-day reference table that teams can use during portfolio company onboarding.

This stays closely aligned with the PDF. The playbook explains that the problem in the first 100 days is often unavailable or scattered reliable data, then organizes the solution into four phases: Connect, days 1–10; Certify, days 11–30; Consolidate, days 31–60; and Communicate, days 61–100.