Best Customer Success Software 2026

Customer success software helps B2B SaaS companies and subscription businesses proactively manage customer health, reduce churn, and drive expansion revenue. These platforms aggregate data from product usage, support tickets, billing, and CRM to create health scores that indicate which accounts need attention. Playbook automation triggers workflows when health scores change — like reaching out when usage drops or scheduling a review when a renewal approaches. CSM tools manage one-to-many communication for tech-touch segments and provide detailed account views for high-touch relationships. Revenue impact features track net revenue retention, expansion opportunities, and churn risk by segment. As SaaS businesses realize that retention drives profitability, customer success platforms become critical operational infrastructure.