| 360 Degrees Communications Limited | See Profile for 360 Degrees Communications Limited... |
| 5654 & Company Limited | See Profile for 5654 & Company Limited... |
| 56 Degrees North Ltd | See Profile for 56 Degrees North Ltd... |
| 89up Ltd | See Profile for 89up Ltd... |
| AA Access Partnership Limited | See Profile for AA Access Partnership Limited... |
| Acuitas Communications Ltd | See Profile for Acuitas Communications Ltd... |
| Aequitas International Limited | See Profile for Aequitas International Limited... |
| Aiken Communications Limited | See Profile for Aiken Communications Limited... |
| Allen Moss Ltd | See Profile for Allen Moss Ltd... |
| Alpaca Communications Limited | See Profile for Alpaca Communications Limited... |
| AMZC Limited | See Profile for AMZC Limited... |
| ANACTA STRATEGIES UK LIMITED | See Profile for ANACTA STRATEGIES UK LIMITED... |
| APCO Worldwide Ltd | See Profile for APCO Worldwide Ltd... |
| Apella Advisors Limited | See Profile for Apella Advisors Limited... |
| April Six Limited | See Profile for April Six Limited... |
| Arden Strategies Limited | See Profile for Arden Strategies Limited... |
| Ardesey Ltd | See Profile for Ardesey Ltd... |
| Atalanta International Limited | See Profile for Atalanta International Limited... |
| Atticus Partners Ltd | See Profile for Atticus Partners Ltd... |
| Bantham Advisory Ltd | See Profile for Bantham Advisory Ltd... |
| Barndoor Strategy Ltd | See Profile for Barndoor Strategy Ltd... |
| BB Partners Advisory Ltd | See Profile for BB Partners Advisory Ltd... |
| Best for Britain Limited | See Profile for Best for Britain Limited... |
| Beyond 2050 Limited | See Profile for Beyond 2050 Limited... |
| Boscobel & Partners Limited | See Profile for Boscobel & Partners Limited... |
| Bradshaw Advisory Ltd | See Profile for Bradshaw Advisory Ltd... |
| Brands2Life Limited | See Profile for Brands2Life Limited... |
| Brennan & Partners Ltd | See Profile for Brennan & Partners Ltd... |
| Brevia Ltd | See Profile for Brevia Ltd... |
| British Red Cross | See Profile for British Red Cross... |
| Brown O'Connor Group Limited | See Profile for Brown O'Connor Group Limited... |
| Brunswick Group Advisory Ltd | See Profile for Brunswick Group Advisory Ltd... |
| BTP Advisers Limited | See Profile for BTP Advisers Limited... |
| Building Relations Ltd | See Profile for Building Relations Ltd... |
| Bullpen Strategy Group | See Profile for Bullpen Strategy Group... |
| Burkitt Communications Ltd | See Profile for Burkitt Communications Ltd... |
| Calvert Communications Ltd | See Profile for Calvert Communications Ltd... |
| Camargue Group Limited | See Profile for Camargue Group Limited... |
| Campaign Collective Ltd | See Profile for Campaign Collective Ltd... |
| Campaign Marketing Services Limited | See Profile for Campaign Marketing Services Limited... |
| Capital Counsel Limited | See Profile for Capital Counsel Limited... |
| Capital Markets Communications Ltd | See Profile for Capital Markets Communications Ltd... |
| Capital Public Relations Ltd | See Profile for Capital Public Relations Ltd... |
| Cardew Group Limited | See Profile for Cardew Group Limited... |
| Carlton Limited | See Profile for Carlton Limited... |
| Cavendish Consulting Limited | See Profile for Cavendish Consulting Limited... |
| Central Lobby Consultants Limited | See Profile for Central Lobby Consultants Limited... |
| Charlesbye Limited | See Profile for Charlesbye Limited... |
| Charlotte Street Partners Limited | See Profile for Charlotte Street Partners Limited... |