GTT Communications GTT Communications (formerly Global Telecom and Technology) is a company that provides telecommunications and Internet services. | ![]() 2600Hz 2600Hz is a provider of mobile and cloud communications software, offering a unified communications VoIP platform for small businesses, resellers and enterprise clients. | Open Systems Open Systems is a company that provides network security, application delivery, identity management, global connectivity, and integrated service management services. | |
Founding Date | Founding Date 2005 | Founding Date 2010 | Founding Date 1990 |
Type | Type Private | Type Private | Type Subsidiary |
Tags | |||
Locations | Locations Arlington, US HQ Zaventem, BE São Paulo, BR Sofia, BG Prague, CZ Copenhagen, DK Vantaa, FI see more | Locations San Francisco, US HQ Henderson, US | |
Employees | Employees 3,7711% increase | Employees 603% increase | Employees 430 |
Funding | |||
Total funding raised | Total funding raised $ 1.4b | Total funding raised N/A | Total funding raised $ 1m |

2600Hz is a provider of mobile and cloud communications software, offering a unified communications VoIP platform for small businesses, resellers and enterprise clients.
View companyOpen Systems is a company that provides network security, application delivery, identity management, global connectivity, and integrated service management services.
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