HubSpot
Best overall for SMBHubSpot is a customer platform combining CRM, marketing, sales, service and content tools. Its free CRM and modular 'Hubs' make it a common starting point for small and mid-sized B2B teams.
Why we picked it
The strongest starting point for most small and mid-sized B2B teams: a genuine free CRM tier, marketing and service tools in the same system, and low admin overhead.
Watch out for
Costs rise steeply at Professional and Enterprise tiers, and key automation features are gated to higher plans.