Federal market statistics are notoriously confusing, incomplete, and difficult to find and analyze. GSA schedules are the biggest and widest multiple award contracts. GSA schedule sales are reasonably accurate; around $ 40 billion annually for all schedules, and represent about 20% of new contract awards. They can be used as a measure of the federal market for most products and services. A rough estimate of the annual market for what you sell is five (5) times GSA schedule sales. This is a gross measure and should be considered as a guideline only. But the measure is better than other contact award
statistics published by the federal government.  Top down market analyses (government-wide or at an agency level) will only tell you that federal agencies buy what you sell in gross amounts. They don’t tell you what specific products and services were bought or who bought them.