Consulting firms
| Outsourcing
| Accenture |
442,000 worldwide (2018) |
Dublin |
| Atos Consulting |
2,500 worldwide |
London |
| BDO |
56,000 worldwide |
23 |
| BearingPoint |
3,350 worldwide |
London |
| Capco |
|
London |
| Capgemini Consulting |
3,600 worldwide |
London |
| Deloitte |
200,000 worldwide |
7 |
| Elixirr |
70 |
London |
Brazil
