Lobbying in Washington
4 organizations headquartered in Washington with federal lobbying disclosures.
Organizations HQ'd in Washington
Amazon.com
Technology & Internet · 11 policy areas · 60 lobbyists
Microsoft Corporation
Technology & Internet · 9 policy areas · 35 lobbyists
T-Mobile US
Telecommunications · 4 policy areas · 16 lobbyists
Costco Wholesale
Retail & Consumer Products · 4 policy areas · 3 lobbyists
Frequently Asked Questions
LobbySpend tracks 4 organizations headquartered in Washington with combined federal lobbying spending of $178.8M over the reporting period.
Amazon.com leads lobbying spending in Washington with $98.0M in total reported expenditures, earning an Influence Score of B.
Organizations headquartered in Washington lobby on 17 different policy areas. 44 registered lobbyists have former government positions (revolving door connections).
The this entity record above pulls directly from the Senate Lobbying Disclosure Office LD-2 filings. What follows is the per-entity context — how this entity sits in the broader U.S. federal lobbying disclosure distribution and which underlying factors drive the headline numbers.
Every number on this page links back to the Senate Lobbying Disclosure Office LD-2 filings; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. lobbying activity. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: U.S. Senate Lobbying Disclosure Act database, 2026.