CRM implementation pricing depends on three factors: the scope of custom development, the number of system integrations, and the complexity of data migration. As a reference point: HubSpot implementations typically start at $12,000 for a focused Sales Hub or Marketing Hub deployment and range to $60,000+ for multi-hub RevOps projects with integrations, data migration, and custom workflows. Dynamics 365 implementations start around $25,000 for a standard Sales or Customer Service module and range to $150,000+ for enterprise rollouts with Azure integrations, custom development, and ERP connectivity. Bitrix24 implementations start at $5,000 for teams that need a working CRM without heavy customization, with most projects landing between $8,000 and $25,000. Selleris provides a detailed fixed-price estimate after the discovery phase — no hourly surprises, no scope creep billed mid-project.