Since 1995 our firm has provided services to clients in nearly every state, having a working knowledge of taxing jurisdictions throughout the US.


Assessment Technologies was founded in 1986 by Graham Weston. The company quickly grew to one of the largest regional tax consulting firms with a concentration on Texas real property tax accounts. The focus was on real property however, this quickly changed with the addition of personal property tax accounts from large national retailers with locations in and around Texas.

In 1995, the company represented a large national retailer that eventually filed for Chapter 11 protection. This filing was the start of a new, exciting, and rapidly growing practice which now includes representation of companies throughout the United States. In addition, the company began representing a wide variety of property types including cell towers, aircraft, asphalt plants, glass-fiber yarn plants, and many other different asset classes. Our representation of companies through the bankruptcy court venue has assisted clients not only navigate the sometimes cumbersome and challenging bankruptcy process but more importantly helped in reducing taxes by over $100 million.

With this specific focus on different and unique areas of representation, the company established AT Tax Advisory. This group of professionals continues their focus on a wide variety of asset types, in virtually every state and in multiple venues, including the bankruptcy court. AT Tax Advisory is the premier company in ad valorem tax compliance and representation.