Sequence HQ is a company developing a finance stack platform for B2B payments. It supports one-time, fixed, and usage-based recurring billing and flexible pricing models for standard flat rates, tiered pricing, and overages. The platform integrates with Xero, Netsuite, and Quickbooks to keep invoicing and reconciliation in sync. Sequence offers Bacs Direct Debit collections, Faster Payments (FPS), and CHAPS for collections and payouts.