Company profiles and links to respective websites are alphabetically listed.
* Companies including "NTT" as part of their name are listed with "NTT" omitted.
- Radishbo-ya CO., LTD.
- Rainbow Development S.A.
- R-Cubic corporation
- Realize Corporation
- Recruit Company GmbH
- Relacional Consultoria LTDA
- NTT RENTAL ENGINEERING CO., LTD.
- NTT Resonant Incorporated
- Revere Group Singapore Private Limited
- Rivertam SA
- RJS Consultoria Em Tecnologia da Informacao Ltda
- Rosser Communications Pty Limited
- RPF Solutions, LLC
- Rumiscene (Proprietary) Limited