Zero BS CRM is a Customer Relationship Management Plugin which runs on the WordPress CMS.

Salesflare is the intelligent sales CRM that fills out itself.

Mautic provides free and open source marketing automation software available to everyone. Free email marketing software, lead management software, etc.

Capsule is a smart simple online CRM.

Badger Maps enables field sales teams to manage their territory by combining Google Maps and their own data.

Pipedrive is a cloud-based sales software.

Revamp CRM helps you make business workflow easier with its dynamic segmentation, sales and marketing automation engine

Infusionsoft is an e-mail marketing and sales platform for small businesses.