| Company | Country | Founded | Funding | Employees |
| United States | 2007 | $67M | 110 | |
| Germany | 2013 | $612.9M | 200 | |
| United States | 2014 | $433.6M | 100 | |
| United States | 2012 | $106.8M | 80 | |
| The Netherlands | 2015 | $383M | 2K | |
| Portugal | 2014 | $903.6k | 25 | |
| The Netherlands | 2014 | $931.4k | 14 | |
| The Netherlands | 2015 | $5.3M | 17 | |
| United States | 2010 | $40.1M | 200 | |
| United States | 2014 | $44.3M | 71 | |
| Spain | 2013 | $52.2M | 178 | |
| United States | 2013 | $51.1M | 15 | |
| United States | 2010 | $13M | 40 | |
| United States | 2018 | $1.3M | 8 | |
| Portugal | 2017 | $617.3k | 11 | |
| The Netherlands | 2018 | $185k | 7 | |
| The Netherlands | 2014 | $750k | 11 | |
| The Netherlands | 2017 | $1.4M | 18 | |
| United States | 2010 | $1M | 4 | |
| United States | 2017 | $2.3M | 15 | |
| The Netherlands | 2014 | - | 10 | |
| The Netherlands | 2017 | $120k | 20 | |
| The Netherlands | 2016 | $2.3M | 6 | |
| Russia | 2016 | $1.5M | 100 | |
| The Netherlands | 2016 | $221.6k | 25 | |
| United States | 2018 | $24.4k | 8 | |
| Estonia | 2016 | $1.1M | 19 | |
| France | 2016 | $150k | 6 | |
| Denmark | 2014 | - | 18 | |
| France | 2013 | $31.1M | 100 | |
| United Kingdom | 2009 | $8.7M | 10 | |
| The Netherlands | 2016 | - | 4 | |
| Denmark | 2017 | $934.4k | 9 | |
| United States | 2016 | $125k | 15 | |
| Sweden | 2015 | $604.5k | 2 | |
| The Netherlands | 2018 | - | 3 | |
| United States | 2016 | $986.7k | 17 | |
| Latvia | 2015 | - | 8 | |
| The Netherlands | 2018 | - | 5 | |
| France | 2016 | $1.2M | 9 | |
| The Netherlands | 2015 | $357.1k | 8 | |
| Denmark | 2015 | $1.8M | 7 | |
| Latvia | 2016 | - | 9 | |
| The Netherlands | 2019 | $3k | 2 | |
| Finland | 2017 | $356.3k | 6 | |
| The Netherlands | 2013 | $3M | 45 | |
| Spain | 2016 | $9.3M | 24 | |
| The Netherlands | 2017 | $733.7k | 4 | |
| Ukraine | 2017 | - | 9 | |
| United States | 2016 | - | 10 |
