| Company | Country | Founded | Funding | Employees |
| United States | 2007 | $85.5M | 550 | |
| United States | 2008 | $2M | 5 | |
| United States | 2006 | $10.2M | 51 | |
| United States | 2012 | $4.7M | 4 | |
| United Kingdom | - | - | - | |
| United States | 1994 | - | 11 | |
| - | - | $4.7M | 11 - 50 | |
| Germany | - | - | - | |
| United States | - | - | 51 | |
| United States | 2014 | $4M | 51 | |
| South Africa | - | $825k | 2 - 10 | |
| France | - | - | - | |
| - | - | - | 2 - 10 | |
| South Africa | - | - | 2 - 10 | |
| The Netherlands | - | - | - | |
| Sweden | - | - | 11 - 50 | |
| United States | - | - | 2 - 10 | |
| Turkey | - | - | - | |
| Denmark | 2008 | - | 11 | |
| France | - | - | 11 - 50 | |
| United States | 2001 | - | 11 | |
| Switzerland | - | - | 2 - 10 | |
| United States | - | - | 11 - 50 | |
| United States | 2014 | - | 2 | |
| Turkey | - | - | - | |
| - | - | - | 2 - 10 |
