Miro Startup Program - $1000 to set up team collaboration
Pipedrive - Sales pipeline software that gets you organized. Helps you focus on the right deals, so easy to use that salespeople just love it. Great for small teams.
Aircall for HubSpot - Document and organize every phone call instantly in HubSpot
Zoho CRM - Omnichannel CRM for Businesses of all sizes
Intercom on Starting Up - A book about growing a startup
Freshsales CRM - A full-fledged CRM for high-velocity sales teams.