Zoho CRM - Omnichannel CRM for Businesses of all sizes

Zendesk - Zendesk is a beautiful, lightweight help-desk solution.

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.

Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community

Copper - Copper (formerly ProsperWorks) is easy-to-use customer relationship management for small businesses. Capture contacts and sales leads direct from Gmail with our simple CRM.

HelpScout - Help Scout is a simple, straightforward way to provide excellent support