BERKELEY, CA - Monday, April 20, marked the deadline for companies and organizations to file their 2015 first quarter federal lobbying disclosure reports. Below is a list of the top ten organizations and how much they spent lobbying Congress and federal agencies between January 1, 2015, and March 31, 2015.

DATA: MapLight analysis of the money spent by companies and organizations lobbying Congress and federal agencies between January 1, 2015, and March 31, 2015, on all issues. Data Source: Clerk of the U.S. House of Representatives.

Lobbying Organization

Amount Spent on Lobbying

Chamber of Commerce of the U.S.A.


National Association of Realtors


American Medical Association


U.S. Chamber Institute for Legal Reform


Google, Inc.


Pharmaceutical Research and Manufacturers of America


General Electric Company


National Association of Broadcasters


American Electric Power Company, Inc. and affiliated corporations


American Hospital Association


  • The top spender, the U.S. Chamber of Commerce, spent $13.8 million on lobbying Congress and federal agencies during the first quarter of 2015.

  • The U.S. Chamber Institute for Legal Reform, an affiliate of the Chamber of Commerce, spent another $5.7 million on lobbying.

  • Google spent $5.5 million on lobbying during the first quarter of 2015, the most it has ever spent in one quarter.

To see how much each company has spent on lobbying since 2008, please click here to view MapLight's Federal Lobbying Database.

Lobbying Methodology: MapLight analysis of federal lobbying disclosure filings from the Clerk of the U.S. House of Representatives between January 1, 2015, and March 31, 2015. Lobbying totals represent money paid by an organization to each lobbying firm for services on all issues. Organizations report total lobbying expenses as a lump sum, which includes both in-house lobbying expenses and amounts paid to (and reported by) lobbying firms that they employ. MapLight calculates a given organization's in-house lobbying expenses by subtracting the total income reported by the lobbying firms that it employs from the company's total reported expenses. In general, filers may round their spending and expenses to the nearest $10,000, and we treat the designation of "Less than $5,000" as a value of $0. MapLight updates its lobbying database daily to capture amendments. Full reports are due on the 20th day of January, April, July, and October.

A link to this report can be found here.

MapLight is a 501(c)(3) nonpartisan research organization that tracks money's influence on politics.