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| Tax Technology Services, LLC ("TTS") |
| located at 1121 Situs Court, Suite 150, Raleigh, North Carolina 27606. TTS specializes in exemption certificate management. |
| Vertex, Inc |
| located at 1041 Old Cassatt Road, Berwyn, Pennsylvania 19312. Vertex is the recognized industry leader in tax compliance software. |
| Tax Compliance, Inc. |
| located at 10089 Willow Creek Road, Suite 300, San Diego, CA 92131. Tax Compliance Inc. is the premier provider of property tax compliance software. |
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