Odoo (formerly OpenERP) is a suite of open-source business apps written in Python and distributed under the AGPL license, under the Open Core software business model. It is used by 2 million users worldwide to manage companies of all size.
- - Odoo is the most popular Web-based, Windows, Android & Mac alternative to Proteus.
- - Odoo is the most popular Open Source & free alternative to Proteus.
ERPNext is a free and open-source integrated Enterprise Resource Planning (ERP) software developed by Frappé Technologies Pvt. Ltd. and is built on MariaDB database system using a Python based server-side framework.
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...).
Bitrix24 is a collaboration software with complete tools for management, collaboration, communication, and sales. Bitrix24 gives you a unified platform for your files, projects, messages, tasks, and contacts.
- - EspoCRM is the most popular SaaS alternative to Proteus.
A Constituent relationship management for the Civic Sector.
Mautic is marketing automation software (email, social, & more). Install on your own website or create a free hosted account. The simple 3-step setup process takes less than 5 minutes and you'll be ready to reclaim control of your marketing.
Sentrifugo is an Open Source HRMS Tool which can be easily configured to meet your organizational needs. It's completely FREE and has no hidden costs! Sentrifugo offers you a bundle of exceptional features and modules for managing your HR processes.
Sentrifugo HRMS Features
Web-based CRM for sales, service, marketing, and call center operations that allows users to manage customer relationships and customer satisfaction.
- - Salesforce is the most popular commercial alternative to Proteus.
On-demand CRM (Customer Relationship Management) services for managing organization-wide sales, marketing, customer support, and orders.
Zoho CRM Features
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.