4D are a London based interactive communications agency that connects businesses, people and content through mobile and landline phones. PRD proivde Collection, Mediation, Billing, Least Cost Routing and Call Validation.

Atlantic Telecom are a telecommunications service provider. PRD provide bespoke Mediation, Retail Billing systems, serving Belgium & The Netherlands – invoices and reporting is configured to be produced in 4 languages.

Atos Origin are a global IT services company and systems integrator and service providers. PRD provide on-site technical resourcing for customer implementations and managed services

C&W is a leading international telecommunications company, with customers in 80 countries. PRD provide the former Energis part of the business with a bespoke Wholesale Billing System, processing approx 35 million calls per day.

KPN are the national carrier in the Netherlands. PRD provide fixed-line Mediation, Summarisation, VOIP, and Interconnect / Wholesale Billing systems, processing up-to 160million call records per day. (Benchmarked to 480 million transactions per 16 hours).

KT InfoTech provides telecommunications and IT services to Korean businesses in the UK. PRD provide Quickstart Billing for Retail and Wholesale Billing.

A leading service provider, systems integrator and solution provider. PRD provide accounting and management performance system for the Analysis and Billing of satellite data for the MoD Skynet 5 (PFI) project, producing complex calculations and reporting.

Telecommunications consultancy and reseller. PRD provide Quickstart billing, for Mediation, Wholesale & Retail Billing (reseller) and Hosted (Bureau) Services.

Communication services, including international calling, home telephony, phone card and call back services. PRD provide Collection, Mediation, Retail Billing of prepaid cards for military personnel overseas.

PRD provide various software support services and Mediation.

Verizon Wireless is one of the largest telecommunication carriers in the USA. PRD provide Mediation, Call Validation and Rating for all of long distance voice traffic. A throughput of some 80 million records per day from 35 input streams and generating 400 output streams.

The main carrier in Hong-Kong. Software is used for International settlements.

PLDT are the national carrier in the Philippines. PRD provide Collection Systems, collecting data in real-time from 39 multiple switch types concurrently from various locations within the philippines.

One of the biggest fixed line telecommunication providers in Indonesia. Software is used for Retail and Mobile Billing.

Electricity power and distribution company in New Zealand. The software is used for Electricity meter reporting to supply companies for NZ national electricity distributor.

Link-Q are a call Centre based in Melbourne Australia. Software is used for Call Center Billing