| Cahoot |
66 |
| Caper |
3847 |
| Capgemini |
3363 |
| Car Keys Express |
257 |
| CB4 |
3940 |
| CBX Software |
1026 |
| CDW |
5129 |
| Celerant Technology Corporation |
6427 |
| Cellotape-A Resource Label Group Co |
1039 |
| Celona |
1726 |
| Centric Software |
927 |
| Ceridian HCM |
5729 |
| CGI |
4146 |
| Chain Store Guide LLC |
6159 |
| Chargebacks911 |
1109 |
| ChargeItSpot |
337 |
| Cherry |
938 |
| Chetu, Inc |
1239 |
| Churchill Systems, Inc. |
1313 |
| Cima Spa |
6446 |
| CipherLab |
944 |
| Cisco |
5225 |
| CITCON |
3849 |
| Citizen Systems America Corp. |
906 |
| Claris Solutions |
4759 |
| Clear Demand |
6326 |
| Cognira |
1408 |
| Cognizant |
3653 |
| Coin Cloud |
457 |
| Columbus Consulting |
5370 |
| Combase USA |
245 |
| Comcast Business |
6453 |
| Compulocks Brands Inc. |
845 |
| ComQi Inc. |
5963 |
| Conex Digital LLC |
847 |
| Connection |
945 |
| Connors Group |
5758 |
| CoreMedia |
5049 |
| Countwise LLC |
5745 |
| Coveo Solutions Inc. |
1610 |
| Cradlepoint |
3463 |
| Crane Payment Innovations |
931 |
| CrossCom |
5762 |
| CrownTV |
726 |
| CRS, Incorporated |
1203 |
| CTA Digital |
216 |
| Custom America |
6163 |
