| Company | Country | Founded | Funding | Employees |
| The Netherlands | 2014 | $3.8M | 22 | |
| United Kingdom | 2010 | $80.1M | 90 | |
| The Netherlands | 2014 | $35.3M | 85 | |
| United States | 2011 | $136M | 150 | |
| The Netherlands | 2011 | $13.4M | 55 | |
| The Netherlands | 2011 | $260.1M | 55 | |
| United Kingdom | 2012 | $45.4M | 150 | |
| France | 2014 | $105.6M | 103 | |
| The Netherlands | 2014 | $105.5M | 45 | |
| United Kingdom | 2011 | $22M | 74 | |
| The Netherlands | 2015 | - | 16 | |
| The Netherlands | 2014 | $2.4M | 185 | |
| Spain | 2011 | $5.7M | 50 | |
| The Netherlands | 2015 | $675M | 8 | |
| Spain | 2015 | $514.9M | 60 | |
| Spain | 2012 | $86.2M | 11 | |
| United Kingdom | 2012 | $6.8M | 2 | |
| The Netherlands | 2012 | $9.2M | 75 | |
| Spain | 2013 | $52.2M | 178 | |
| The Netherlands | 2014 | $1.4M | 15 | |
| United Kingdom | 2013 | $24.8M | 70 | |
| France | 2011 | $69.3M | 100 | |
| The Netherlands | 2013 | $1.9M | 15 | |
| France | 2012 | $5.2M | 23 | |
| United Kingdom | 2011 | $28.5M | 96 | |
| United Kingdom | 2011 | $4.2M | 11 | |
| France | 2012 | $800k | 10 | |
| Spain | 2011 | $31.6M | 67 | |
| United Kingdom | 2013 | $44.5M | 60 | |
| United Kingdom | 2013 | $12M | 11 | |
| United Kingdom | 2013 | $11.1M | 40 | |
| Spain | 2011 | $15.6M | 70 | |
| Spain | 2012 | $5M | 50 | |
| The Netherlands | 2012 | $2.7M | 25 | |
| United Kingdom | 2013 | $8.8M | 30 | |
| The Netherlands | 2011 | $7.5M | 40 | |
| The Netherlands | 2014 | $4.6M | 25 | |
| United Kingdom | 2011 | $7.6M | 79 | |
| Spain | 2012 | $3.1M | 6 | |
| The Netherlands | 2012 | $580k | 30 | |
| France | 2012 | $23.8M | 11 | |
| United Kingdom | 2013 | $8.7M | 2 | |
| United Kingdom | 2011 | $7.2M | 40 | |
| The Netherlands | 2015 | - | 30 | |
| France | 2012 | $6.1M | 11 | |
| The Netherlands | 2012 | $1.8M | 30 | |
| France | 2015 | $11.1M | 70 | |
| United Kingdom | 2013 | $2.5M | 14 | |
| The Netherlands | 2015 | $930.2k | 16 | |
| The Netherlands | 2013 | - | 30 |
