VendorPack blog
Practical guides on vendor onboarding and COI tracking for contractors.
COI tracking for contractors: collect, chase, keep
2026-07-24 · What to collect from every vendor, how to track expirations like invoices, when to chase renewals, and why you keep every certificate.
The four-document vendor onboarding checklist
2026-07-24 · W-9, COI, banking info, signed NDA: what each document protects you from and the one rule that makes the checklist actually hold.