Customer-led growth (CLG) in B2B marketing focuses on using existing customers for expansion, referrals, and long-term value.CLG shifts the focus from acquisition to growing through relationships, advocacy, referrals, and retention.Key tactics for CLG include customer onboarding programs, referral initiatives, case studies, feedback loops, and expansion-focused nurture cadences.Common metrics to measure CLG success include Net Revenue Retention, Customer Lifetime Value, and Advocacy Participation.