| Company | Country | Founded | Funding | Employees |
| United States | 2014 | $23.3M | 11 | |
| New Zealand | 2006 | $137.2M | 2K | |
| United States | 2012 | $296.8M | 11 | |
| United States | - | - | - | |
| United Kingdom | 2016 | $81.8M | 2 | |
| United Kingdom | 2009 | $43.6M | 51 | |
| United Kingdom | 2016 | $9.8M | 30 | |
| United States | - | - | 2 | |
| United Kingdom | 2014 | $19.4M | 2 | |
| The Netherlands | 2015 | - | 10 | |
| United States | 2013 | $35.5M | 2 | |
| United States | 2007 | $867.5M | 201 | |
| United States | 2009 | $294.3M | 28 | |
| Israel | 2012 | $228.7M | 11 | |
| Canada | 2015 | $8.4M | 11 - 50 | |
| United States | 2015 | $6.7M | 11 | |
| Poland | 2016 | $1M | 60 | |
| France | 2009 | $10.3M | 31 | |
| France | 2014 | $98M | 100 | |
| United Kingdom | 2007 | $19.5M | 140 | |
| United States | 1993 | - | 51 | |
| United States | - | - | - | |
| Germany | 2015 | $43.1M | - | |
| United Kingdom | 2000 | $1.4M | - | |
| United States | 2015 | $25k | 2 | |
| United Kingdom | 2015 | $7.6M | 10 | |
| United Kingdom | 2016 | $900k | 2 | |
| United States | 2014 | $44.6M | 11 | |
| Italy | 2016 | $277.9k | 8 | |
| United States | 2016 | - | 2 | |
| United Kingdom | 2010 | - | 11 | |
| United States | 2006 | $3.3M | - | |
| United States | 2015 | - | 201 | |
| The Netherlands | 2012 | $3.5M | 31 | |
| Spain | 2013 | - | 2 | |
| United States | 1991 | - | 2 | |
| India | 2014 | $20M | 2 | |
| United Kingdom | 2015 | - | 5 | |
| United States | - | $50k | 2 | |
| Ireland | 2013 | - | 2 | |
| United States | 2009 | - | 11 | |
| France | 2011 | - | - | |
| Spain | 2013 | $822.9k | 11 | |
| United States | 2011 | $80k | 2 | |
| India | 2007 | - | 11 | |
| Austria | 2012 | - | 2 - 10 | |
| United States | - | - | - | |
| United Kingdom | - | - | 11 | |
| United States | 2011 | - | 2 | |
| United States | - | - | 10K |
