1crm.comSoftware by 1CRM Corp.
Bigin by Zoho CRM - Pipeline-centric CRM built and priced for small businesses
Callmama - Get cheap international calling, international virtual number, Call Mama Gives an added advantage to send message and make calls to non-user of Callmama App.
Pipeliner CRM - Pipeliner CRM empowers small to medium-sized sales teams to close more deals and lower risk. Implementation and training are a breeze. Mac & Windows.
CallHippo - Easy to use Phone System with World-Class Support
Zoho CRM - Omnichannel CRM for Businesses of all sizes
KrispCall - Virtual cloud phone system for business