- Advocate Networks
 - Provides technical, operational, and financial expertise in all voice, data, video and wireless areas of enterprise communications systems and infrastructure. - Business Telecommunications Audit Service
- Nationwide contingency fee based telephone invoice auditing and telecom expense management.
- MBG
- Offers telecommunications expense management systems, IT chargebacks, and telecommunications invoice analysis services.
- Profit Enhancement Services
- Specialises in auditing and expense recovery for the telecommunications industry.
- ProfiTel Group
- Provides telecom cost management services including contract negotiations, telecom billing audits, and more.
- Refund Systems
- Provides a full spectrum of telecom audit and consultation services to reduce expenses and maximize profit.
- Teligistics.com
- Unbiased long distance bill auditing and customised low cost telecom packages from multiple long distance carriers.
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