Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
D (Programming Language) - D is a language with C-like syntax and static typing.
Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community
Drift - A messaging app that helps you grow your business.
Zoho Desk - Industry's first context-aware Helpdesk Software
Squirrel (programming language) - Squirrel is a high level imperative, object-oriented programming language, designed to be a light-weight scripting language that fits in the size, memory bandwidth, and real-time requirements of applications like video games.