GitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.

Loop Communications - Loop Communications provides hosted VoIP business phone systems to small businesses and mid-sized companies.

GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab

BVoIP - BVoIP allows to easily add Cloud & On-Premise VoIP PBX to the product offering without having to re-invent the wheel or add another layer to the daily operations..

BitBucket - Bitbucket is a free code hosting site for Mercurial and Git. Manage your development with a hosted wiki, issue tracker and source code.

OnSIP - OnSIP offers cloud phone sytem for business communications across all devices.