Roundcube - Web-based IMAP email client
HubSpot - Grow Better With HubSpot: Software that's powerful, not overpowering. Seamlessly connect your data, teams, and customers on one CRM platform that grows with your business.
Horde - Horde Groupware is a free, enterprise ready, browser based collaboration suite.
ActiveCampaign - Integrated email marketing, marketing automation, and small business CRM. Send beautiful newsletters, setup behavioral based automations, and benefit from sales automation.
Rainloop - RainLoop is a web based email client.
Pardot - Salesforce B2B marketing automation