ACT! Alternatives

EspoCRM is an Open Source CRM (Customer Relationship Management) software that allows you to see, enter and evaluate all your company relationships regardless of the type. People, companies, projects or opportunities. Written in PHP and JavaScript.

Crust CRM is a 100% free and open-source CRM. It's fully featured and includes rich dashboards, automation rules (workflows), collaborative team messaging and much more. You can customise your CRM with the included low-code development platform.

Mautic is marketing automation software (email, social, & more). Install on your own website or create a free hosted account.

Corteza CRM is an advanced Free and Open Source Customer Relationship Management platform. Feature rich, a cloud scalable architecture and entirely modular, Corteza CRM allows any organisation to create the CRM environment tailored to their context.

On-demand CRM (Customer Relationship Management) services for managing organization-wide sales, marketing, customer support, and orders.

Web-based CRM for sales, service, marketing, and call center operations that allows users to manage customer relationships and customer satisfaction.

SuiteCRM provides an enterprise-grade Customer Relationship Management (CRM) application to a global community of users and software developers. It is a robust and credible alternative to Salesforce, Microsoft and the major CRM vendors.

Pipedrive is a powerful sales pipeline management tool. It organizes your leads in a way you'll always have a great overview of sales, and important deals won't get dropped.

Sugar is a complete CRM solution that automates your core sales, customer service and marketing processes, with a focus on the individual.

Insightly is a web-based project and Customer Relationship Management (CRM) application that integrates with Google Apps via a Gmail contextual gadget and Google Docs support.