![]() Sipwise Sipwise develops open source-based software and delivers core telecom switching infrastructure to replace existing legacy infrastructure and enables new over-the-top (OTT) services for telecom operators. | ![]() Open-Xchange Open-Xchange is a provider of open source software-as-a-service solutions for hosting, service provider and telecommunication companies. | ![]() Metaswitch Networks Metaswitch Networks is a network software company that provides and develops commercial and open-source solutions for communication services. | |
Founding Date | Founding Date 2008 | Founding Date 2005 | Founding Date 1981 |
Type | Type Private | Type Private | Type Subsidiary |
Tags | |||
Locations | Locations Brunn am Gebirge, AT HQ | Locations Enfield, GB HQ Sydney, AU Hong Kong, HK Jakarta, ID Kuala Lumpur, MY Ciudad De México, MX Wellington, NZ see more | |
Employees | Employees 224% decrease | Employees 1962% decrease | Employees 1151% decrease |
Funding | |||
Latest funding round | Latest funding round $ 863.5k (almost 10 years ago) | Latest funding round $ 24.9m (over 8 years ago) | Latest funding round N/A |
Total funding raised | Total funding raised $ 4m | Total funding raised $ 67.9m | Total funding raised N/A |

Open-Xchange is a provider of open source software-as-a-service solutions for hosting, service provider and telecommunication companies.
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Metaswitch Networks is a network software company that provides and develops commercial and open-source solutions for communication services.
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