OrangeHRM!

Calamari helps you in leave management and tracking attendance. It automates PTO calculation. Many ways to clock in/out. Integrated with Google Apps, Slack, Jira, and Office 365.

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 - all in an easy and intuitive interface. Written in PHP and JavaScript.

Dolibarr ERP & CRM is a modern and easy to use open-source web software package to manage your business (customers, invoices, orders, products, stocks, agenda, e-mailings, shipments...).

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

Tryton is a three-tiers high-level general purpose application platform under the license GPL-3 written in Python and using PostgreSQL as database engine.

The suite of applications Stoq is an innovative set of business management applications available as free and open source software.

FrontAccounting is a simple, but powerful, system for the entire ERP chain and covers:

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.

]project-open[ is an open-source based Project-ERP for medium and small project oriented companies.

Sentrifugo is a FREE and powerful Human Resource Management System that can be easily configured to meet your organizational needs. There are no hidden costs and trial periods. It’s suitable for small and medium enterprises. Sentrifugo offers HR resource modules with exceptional features and an intuitive interface. It's easy to set up, configure and use.

Compiere open source ERP software provides a modern, highly adaptable, low-cost ERP business solution

When you use Highrise, contacts and communication history can be shared across your entire company. No more “Jim has the client’s number and he’s out of the office today.” No more “I don’t know what Jane told the printer last week.” No more “Oops, I didn’t know you already called her back—I just did too.” With Highrise, everyone’s always on the same page.

webERP is a complete web based accounting/ERP system that requires only a web-browser and pdf reader to use. It has a wide range of features suitable for many businesses particularly distributed businesses in wholesale and distribution. It is developed as an open-source application and is available as a free download to use. The feature set is continually expanding as new businesses and developers adopt it.There are on average 5,000 downloads per month.