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Understanding Your House ID Number

When a new lobbying firm, or individual, registers with the House, a unique ID is created for that registrant. Each time a new client is registered for that registrant, a sequential 3 digit number is created and combined with the registrant ID to create the House ID for that client, as shown in the example below:

House ID Diagram

For example, lobbying registrant K Street Incorporated has three clients: Constitution Group, Independence Group, and Democracy Group. K Street Incorporated's House ID numbers are as follows:

K Street Incorporated

(Registrant ID: 12345)
 
Client Name House ID
Constitution Group 12345000
Independence Group 12345001
Democracy Group 12345002

Notice that the first 5 digits in this example remain the same, since all three clients are registered with the same lobbying firm.

When you register a new client, you will use the first 5 digits, which is the registrant portion of your House ID. When you file a lobbying activity report, you will use the full 8 digit House ID for each client.