| Clients Listed Alphabetically |
| Alberta Municipal Affairs |
| American Civil Liberties Union |
| Arizona Department of Revenue |
| Arlington County, Virginia |
| Barents Group of KPMG Consulting, Inc. |
| Bermuda, Ministry of Finance |
| Brevard County, Florida |
| City of Calgary, Alberta |
| Community Justice Project |
| Connecticut Office of Policy and Management |
| CONSAD Research Corporation |
| Cook County (Chicago), Illinois |
| David M. Griffiths & Associates, Lt |
| Deloitte & Touche |
| District of Columbia, Office of Real Property Taxes |
| Douglas County, Colorado |
| Douglas County, Nebraska |
| Edmonton, Alberta |
| El Paso Central Appraisal District |
| Erie County, Pennsylvania |
| Farranta Consulting Limited |
| Florida Department of Revenue, Ad Valorem Tax Division |
| Town of Greenwich, Connecticut |
| Henry County, Georgia |
| Hernando County, Florida |
| Idaho State Tax Commission |
| llinois Property Assessment Institute |
| Indiana Civil Liberties Union |
| Institute of Iowa Certified Assessors |
| International Access Corporation / International Land Systems, Inc |
| International Association of Assessing Officers |
| International City/County Management Association (ICMA) |
| Iowa Department of Revenue |
| Jackson & Kelly |
| Jefferson County, Colorado |
| Johnson County, Kansas |
| Kavoussi & Associates |
| Kent County, Delaware, Board of Assessment |
| Kentucky Revenue Cabinet |
| Lancaster County, Pennsylvania, Board of Assessment Appeals |
| Lincoln Institute of Land Policy |
| Maricopa County (Phoenix), Arizona |
| Massachusetts Department of Revenue, Division of Local Services |
| Minnesota Department of Revenue |
| Mississippi State Tax Commission |
| Municipal Property Assessment Corporation |
| National Economic Research Associates, Inc |
| Navarro & Associates |
| Nebraska Department of Revenue |
| New Castle County, Delaware, Assessment Division |
| New Hampshire Equalization Coalition |
| New York State Division of Equalization and Assessment |
| New York State Office of Real Property Services |
| Nova Scotia Department of Municipal Affairs |
| Oklahoma Tax Commission |
| Orange County Florida, Property Appraiser's Office |
| Oregon Department of Revenue |
| Organization for Economic Cooperation and Development |
| Peoria County, Illinois, Supervisor of Assessments |
| Pierce County (Tacoma), Washington |
| Pierce County, Washington |
| Pima County, Arizona |
| Portsmouth, New Hampshire |
| Public Service Company of New Hampshire |
| Real Estate Tax Consultants, Inc. |
| Republic of Slovenia, Ministry of Finance |
| Republic of Trinidad and Tobago |
| State of Rhode Island |
| Saskatchewan Assessment Management Agency and the Cities of Moose Jaw, Prince Albert, Regina, and Saskatoon |
| Shelby County (Memphis), Tennessee |
| SPSS, Inc |
| City of St. Albert |
| Tennessee Office of the Attorney General |
| City of Two Rivers, Wisconsin |
| Vermont Division of Property Valuation and Review |
| Washington Attorney General's Office |
| Washington Department of Revenue |
| Washtenaw County, Michigan, Equalization Department |
| Wells Fargo Bank |
| West Virginia Department of Tax and Revenue |
| City of Winnipeg, Manitoba |
