Senate LDA data Updated quarterly Lobbying disclosures

Transportation Lobbying

Heavy-volume Senate LDA filings on Transportation: the largest registrant books in this issue code report quarterly LD-2 outlays and named contacts.

All issues → Methodology

The verdict

PlainInfluence tracks $323.8M in itemized Transportation lobbying disclosures across 2,131 filers, among them CHAMBER OF COMMERCE OF THE U.S.A., BUSINESS ROUNDTABLE, AMERICAN CHEMISTRY COUNCIL, ranking #9 of 79 tracked issues by spend.

#9
of 79 issues by spend
$323.8M
tracked Transportation lobbying
2,131
organizations lobbying
$152K
average per filer

Issue code: TRA · 2131 organizations lobbying on this issue

Total Lobbying Spend
$323.8M
Organizations
2,131

Transportation filing shape

2,131 organizations filed on Transportation (TRA) in 2023-2024, a wide registrant field where many distinct interests compete for attention.

CHAMBER OF COMMERCE OF THE U.S.A. leads this issue's filer table with $142.2M in all-issue lobbying; filings remain spread across 10 named organizations rather than collapsing into one registrant.

Because many distinct organizations file on Transportation, the LD-2 stream here is a useful map of competing advocacy priorities before hearings or rulemakings register in outcomes.

Top Spenders

Rank Organization Total Lobbying
#1 CHAMBER OF COMMERCE OF THE U.S.A. $142.2M
#2 BUSINESS ROUNDTABLE $47.5M
#3 AMERICAN CHEMISTRY COUNCIL $41.9M
#4 AMAZON.COM SERVICES LLC $39.1M
#5 AARP $38.9M
#6 CTIA-THE WIRELESS ASSOCIATION $36.3M
#7 GENERAL MOTORS COMPANY $31.5M
#8 GOOGLE CLIENT SERVICES L.L.C. $30.9M
#9 GENERAL DYNAMICS CORPORATION $30.9M
#10 LOCKHEED MARTIN CORPORATION $29.5M
#11 BOEING $27.9M
#12 AMERICAN FUEL & PETROCHEMICAL MANUFACTURERS $27.5M
#13 FEDEX CORPORATION $27.1M
#14 RTX CORPORATION AND AFFILIATES $26.8M
#15 QUALCOMM INCORPORATED $26.4M
#16 ORACLE CORPORATION $25.7M
#17 EDISON ELECTRIC INSTITUTE $25.1M
#18 SOUTHERN COMPANY $24.8M
#19 OCCIDENTAL PETROLEUM CORPORATION $23.9M
#20 MICROSOFT CORPORATION $23.8M
#21 HONEYWELL INTERNATIONAL $22.0M
#22 NATIONAL ASSOCIATION OF MANUFACTURERS $20.1M
#23 WALMART INC. $19.5M
#24 NEXTERA ENERGY, INC $19.3M
#25 KOCH GOVERNMENT AFFAIRS $19.3M
#26 NATIONAL RETAIL FEDERATION $18.5M
#27 CHEVRON U.S.A., INC. $17.7M
#28 BAYER CORPORATION (CONSOLIDATED REPORT) $15.8M
#29 AMERICAN AIRLINES INC. $15.7M
#30 DUKE ENERGY CORPORATION $14.9M
#31 ANHEUSER-BUSCH COMPANIES INC. $14.5M
#32 DELTA AIR LINES INC $14.5M
#33 AMERICAN PETROLEUM INSTITUTE $14.4M
#34 SHELL USA, INC. (FKA SHELL OIL COMPANY) $14.1M
#35 NATIONAL AUTOMOBILE DEALERS ASSOCIATION $14.0M
#36 UNITED AIRLINES, INC. $13.9M
#37 AMERICAN PROPERTY CASUALTY INSURANCE ASSOCIATION $13.9M
#38 AMERICAN ELECTRIC POWER COMPANY, INC. AND AFFILIATED CORPORATIONS $11.7M
#39 PHILLIPS 66 $11.6M
#40 LYONDELL CHEMICAL COMPANY $11.5M
#41 EXXON MOBIL CORPORATION $11.4M
#42 INTERNATIONAL PAPER $11.3M
#43 ASSOCIATION OF AMERICAN RAILROADS $10.8M
#44 PEPSICO, INC. $10.8M
#45 FORD MOTOR COMPANY $10.8M
#46 CONSTELLATION ENERGY GENERATION, LLC $10.6M
#47 ABBOTT LABORATORIES $10.6M
#48 PACIFIC GAS AND ELECTRIC $10.5M
#49 BP AMERICA INC $10.3M
#50 REAL ESTATE ROUNDTABLE $10.2M

Registrant concentration on Transportation

Largest registrants by all-issue lobbying total among filers on code TRA (Senate LDA).

CHAMBER OF COMMERCE OF THE U…$142.2MBUSINESS ROUNDTABLE$47.5MAMERICAN CHEMISTRY COUNCIL$41.9MAMAZON.COM SERVICES LLC$39.1MAARP$38.9MCTIA-THE WIRELESS ASSOCIATION$36.3MGENERAL MOTORS COMPANY$31.5MGOOGLE CLIENT SERVICES L.L.C.$30.9M
All-issue lobbying total among filers on Transportation · official public datasets

Source: U.S. Senate Office of Public Records, Lobbying Disclosure Act filings LD-2 quarterly lobbying disclosure filings (issue codes, registrants, expenditures) · 2024 Aggregated from quarterly LD-2 filings for issue code TRA; covers 2,131 registered organizations across the 2023-2024 reporting period. Data current as of August 2026.

Questions on this issue code

How much is spent lobbying on Transportation?
$323.8M was reported on Transportation (TRA) by 2,131 organizations in 2023-2024 Senate LDA filings, a heavy code by tracked outlay. CHAMBER OF COMMERCE OF THE U.S.A. leads the filer list.
Who are the biggest spenders on Transportation lobbying?
Top filers on Transportation include CHAMBER OF COMMERCE OF THE U.S.A., BUSINESS ROUNDTABLE, AMERICAN CHEMISTRY COUNCIL. Rankings use each organization's all-issue lobbying total among registrants that filed on code TRA.
How many organizations lobby on Transportation?
2,131 organizations filed on Transportation in 2023-2024, a broad filer field relative to other LDA issue codes.

Data: official public datasets, 2023-2024. Verify filings at lda.senate.gov.