MAYER BROWN LLP
MAYER BROWN LLP is named as the registrant in 47 lobbying reports we hold for 2026-Q2, for 45 clients. 4 reports of 45 compared with the due date were posted after it.
Clients and amounts
A lobbying report states the registrant's income from the client (a lobbying firm) or its own lobbying expenses (an organization lobbying for itself), for the whole quarter and every issue together. A report of less than $5,000, or of no lobbying activity, states no figure. It is not the amount spent on one bill.
| Client | Amount the report states, by quarter | Reports |
|---|---|---|
| ONSEMI (ON SEMICONDUCTOR CORPORATION) | 2026-Q2: $110,000 in income | 2 |
| VOLVO CAR CORPORATION | 2026-Q2: $20,000 in income | 2 |
| 21ST CENTURY PRIVACY COALITION | 2026-Q2: $50,000 in income | 1 |
| ABBOTT LABORATORIES | 2026-Q2: No amount stated | 1 |
| AMERICAN EXPRESS | 2026-Q2: No amount stated | 1 |
| ARISTA NETWORKS, INC. | 2026-Q2: No amount stated | 1 |
| ARKEMA INC | 2026-Q2: No amount stated | 1 |
| AT&T SERVICES INC | 2026-Q2: $60,000 in income | 1 |
| CHUBB INA HOLDINGS, INC. (FORMERLY ACE INA HOLDINGS, INC.) | 2026-Q2: No amount stated | 1 |
| COALITION FOR REGULATED HFCS INC. | 2026-Q2: $90,000 in income | 1 |
| COINBASE, INC. | 2026-Q2: No amount stated | 1 |
| CTIA - THE WIRELESS ASSOCIATION | 2026-Q2: $50,000 in income | 1 |
| ELEMENT ELECTRONICS | 2026-Q2: $30,000 in income | 1 |
| FREEDOM HOLDING CORP | 2026-Q2: $80,000 in income | 1 |
| GALAXY DIGITAL HOLDINGS, LP | 2026-Q2: $100,000 in income | 1 |
| HEALTH CARE ALLIANCE FOR PATIENT SAFETY | 2026-Q2: $30,000 in income | 1 |
| HUNTSMAN CORPORATION | 2026-Q2: No amount stated | 1 |
| IFM INVESTORS PTY LTD. | 2026-Q2: $50,000 in income | 1 |
| ITO EN (NORTH AMERICA) INC. | 2026-Q2: $70,000 in income | 1 |
| LIVE NATION ENTERTAINMENT, INC. | 2026-Q2: No amount stated | 1 |
| MAERSK SERVICES USA INC. | 2026-Q2: No amount stated | 1 |
| MEC AERIAL WORK PLATFORMS | 2026-Q2: No amount stated | 1 |
| MEDLINE INDUSTRIES, L.P. (FORMERLY MEDLINE INDUSTRIES, INC.) | 2026-Q2: No amount stated | 1 |
| METAL EXCHANGE CORPORATION | 2026-Q2: No amount stated | 1 |
| MICHELIN NORTH AMERICA, INC. | 2026-Q2: $70,000 in income | 1 |
| NOVOCURE | 2026-Q2: $20,000 in income | 1 |
| OURARING INC. | 2026-Q2: $10,000 in income | 1 |
| PALO ALTO NETWORKS, INC. | 2026-Q2: No amount stated | 1 |
| PRIMEMAX MEDICAL INDUSTRIES, INC. | 2026-Q2: $50,000 in income | 1 |
| RAZOR USA LLC | 2026-Q2: No amount stated | 1 |
| SABIN METAL CORPORATION | 2026-Q2: No amount stated | 1 |
| SECURITY INDUSTRY ASSOCIATION | 2026-Q2: No amount stated | 1 |
| SHIPPING TAXATION COALITION (INFORMAL COALITION) | 2026-Q2: No amount stated | 1 |
| SOLONIAN RESOURCES, LLC | 2026-Q2: No amount stated | 1 |
| SONOS INC. | 2026-Q2: No amount stated | 1 |
| SOUTHWIRE COMPANY, LLC | 2026-Q2: No amount stated | 1 |
| STARR INSURANCE HOLDINGS, INC. | 2026-Q2: $50,000 in income | 1 |
| SUNIVA, INC. | 2026-Q2: $40,000 in income | 1 |
| SYENSQO USA LLC | 2026-Q2: No amount stated | 1 |
| U.S. VENTURE, INC. (FORMERLY U.S. OIL) | 2026-Q2: No amount stated | 1 |
| UBER TECHNOLOGIES, INC. | 2026-Q2: No amount stated | 1 |
| UNITED STATES STEEL CORPORATION | 2026-Q2: $10,000 in income | 1 |
| VERIZON COMMUNICATIONS INC AND VARIOUS SUBSIDIARIES | 2026-Q2: No amount stated | 1 |
| VISA INC. | 2026-Q2: No amount stated | 1 |
| WORLD JEWISH RESTITUTION ORGANIZATION | 2026-Q2: No amount stated | 1 |
Lobbyists named in these reports
- DANIEL HARDER · 12 reports · earlier government job reported
- HOWARD W WALTZMAN · 3 reports
- JESSICA WOOLLEY · 1 report
- JONATHAN BECKER · 5 reports · earlier government job reported
- MATTHEW BERNSTEIN · 1 report
- TIMOTHY J KEELER ESQ · 3 reports
- WARREN PAYNE · 20 reports
Bills named, and how the House and the Senate voted
10 bills named in these reports. None of them became law in our record, so no recorded vote is shown. A lobbying report names the houses of Congress and the agencies the lobbyists contacted. It does not say which members or staff they met.
| Bill | Status | How the House and the Senate voted |
|---|---|---|
| H.R. 1024US-Kazakhstan Trade Modernization Act | Introduced | No recorded vote in our record |
| H.R. 1623SCREEN Act | Introduced | No recorded vote in our record |
| H.R. 6257SMK Act of 2025 | Introduced | No recorded vote in our record |
| H.R. 6291Children and Teens’ Online Privacy Protection Act | Introduced | No recorded vote in our record |
| H.R. 6292Don’t Sell Kids’ Data Act of 2025 | Introduced | No recorded vote in our record |
| H.R. 6489SAFE BOTs Act | Introduced | No recorded vote in our record |
| H.R. 7386First Responder Network Authority Reauthorization Act of 2026 | Passed the House | No recorded vote in our record |
| H.R. 7757KIDS Act | Passed the House | No recorded vote in our record |
| S. 3639SAT Streamlining Act | Introduced | No recorded vote in our record |
| S. 4407 | Not checked yet | No recorded vote in our record |
Issues named: Trade (domestic/foreign) (13), Taxation/Internal Revenue Code (8), Telecommunications (3), Transportation (3), Energy/Nuclear (2), Health Issues (2), Chemicals/Chemical Industry (1), Consumer Issues/Safety/Products (1), Financial Institutions/Investments/Securities (1), Foreign Relations (1), Insurance (1).
Reports posted after the due date
The Lobbying Disclosure Act asks each registrant to file a report for each quarter no later than 20 days after the quarter ends (2 U.S.C. 1604(a)): by January 20, April 20, July 20 and October 20. We compare the date LDA.gov gives as the report's posting with the due date. When the 20th falls on a Saturday, a Sunday or the Martin Luther King Jr. holiday, we count the next business day as the due date. An amendment to a report is not counted. A report posted after the due date is listed with the number of days after it.
| Client | Quarter | Due | Posted | Days after the due date | Report |
|---|---|---|---|---|---|
| FREEDOM HOLDING CORP | 2026-Q2 | July 20, 2026 | 22 | The report on LDA.gov | |
| SABIN METAL CORPORATION | 2026-Q2 | July 20, 2026 | 4 | The report on LDA.gov | |
| HUNTSMAN CORPORATION | 2026-Q2 | July 20, 2026 | 3 | The report on LDA.gov | |
| VOLVO CAR CORPORATION | 2026-Q2 | July 20, 2026 | 2 | The report on LDA.gov |
Every report
| Client | Kind, as filed | Posted | Report |
|---|---|---|---|
| VOLVO CAR CORPORATIONTransportation, Trade (domestic/foreign) | 2nd Quarter - Amendment | The report on LDA.gov | |
| FREEDOM HOLDING CORPFinancial Institutions/Investments/Securities, Foreign Relations | 2nd Quarter - Report | The report on LDA.gov | |
| SABIN METAL CORPORATIONTaxation/Internal Revenue Code | 2nd Quarter - Report | The report on LDA.gov | |
| HUNTSMAN CORPORATIONTaxation/Internal Revenue Code | 2nd Quarter - Report | The report on LDA.gov | |
| VOLVO CAR CORPORATIONTransportation, Trade (domestic/foreign) | 2nd Quarter - ReportA later report for this client and quarter replaces it | The report on LDA.gov | |
| ONSEMI (ON SEMICONDUCTOR CORPORATION)Energy/Nuclear, Taxation/Internal Revenue Code, Trade (domestic/foreign) | 2nd Quarter - Amendment | The report on LDA.gov | |
| STARR INSURANCE HOLDINGS, INC.Insurance | 2nd Quarter - Report | The report on LDA.gov | |
| SUNIVA, INC.Trade (domestic/foreign) | 2nd Quarter - Report | The report on LDA.gov | |
| UBER TECHNOLOGIES, INC. | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| UNITED STATES STEEL CORPORATIONTrade (domestic/foreign) | 2nd Quarter - Report | The report on LDA.gov | |
| SONOS INC. | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| SYENSQO USA LLC | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| MAERSK SERVICES USA INC.Taxation/Internal Revenue Code | 2nd Quarter - Report | The report on LDA.gov | |
| IFM INVESTORS PTY LTD.Transportation | 2nd Quarter - Report | The report on LDA.gov | |
| COALITION FOR REGULATED HFCS INC.Chemicals/Chemical Industry | 2nd Quarter - Report | The report on LDA.gov | |
| OURARING INC.Taxation/Internal Revenue Code, Health Issues, Trade (domestic/foreign) | 2nd Quarter - Report | The report on LDA.gov | |
| MEDLINE INDUSTRIES, L.P. (FORMERLY MEDLINE INDUSTRIES, INC.) | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| PRIMEMAX MEDICAL INDUSTRIES, INC.Trade (domestic/foreign) | 2nd Quarter - Report | The report on LDA.gov | |
| NOVOCURETrade (domestic/foreign) | 2nd Quarter - Report | The report on LDA.gov | |
| MICHELIN NORTH AMERICA, INC.Trade (domestic/foreign) | 2nd Quarter - Report | The report on LDA.gov | |
| ITO EN (NORTH AMERICA) INC.Trade (domestic/foreign) | 2nd Quarter - Report | The report on LDA.gov | |
| ELEMENT ELECTRONICSTrade (domestic/foreign) | 2nd Quarter - Report | The report on LDA.gov | |
| GALAXY DIGITAL HOLDINGS, LPTaxation/Internal Revenue Code | 2nd Quarter - Report | The report on LDA.gov | |
| ABBOTT LABORATORIESTaxation/Internal Revenue Code | 2nd Quarter - Report | The report on LDA.gov | |
| RAZOR USA LLC | 2nd Quarter - Termination (No Activity) | The report on LDA.gov | |
| VISA INC. | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| U.S. VENTURE, INC. (FORMERLY U.S. OIL) | 2nd Quarter - Termination (No Activity) | The report on LDA.gov | |
| SOUTHWIRE COMPANY, LLC | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| SOLONIAN RESOURCES, LLC | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| SHIPPING TAXATION COALITION (INFORMAL COALITION) | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| METAL EXCHANGE CORPORATION | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| MEC AERIAL WORK PLATFORMS | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| COINBASE, INC.Trade (domestic/foreign) | 2nd Quarter - Report | The report on LDA.gov | |
| ONSEMI (ON SEMICONDUCTOR CORPORATION)Energy/Nuclear, Trade (domestic/foreign), Taxation/Internal Revenue Code | 2nd Quarter - ReportA later report for this client and quarter replaces it | The report on LDA.gov | |
| HEALTH CARE ALLIANCE FOR PATIENT SAFETYHealth Issues, Consumer Issues/Safety/Products | 2nd Quarter - Report | The report on LDA.gov | |
| CHUBB INA HOLDINGS, INC. (FORMERLY ACE INA HOLDINGS, INC.) | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| ARISTA NETWORKS, INC. | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| AMERICAN EXPRESS | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| ARKEMA INC | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| SECURITY INDUSTRY ASSOCIATION | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| PALO ALTO NETWORKS, INC. | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| LIVE NATION ENTERTAINMENT, INC. | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| CTIA - THE WIRELESS ASSOCIATIONTelecommunications | 2nd Quarter - Report | The report on LDA.gov | |
| 21ST CENTURY PRIVACY COALITIONTelecommunications | 2nd Quarter - Report | The report on LDA.gov | |
| AT&T SERVICES INCTelecommunications | 2nd Quarter - Report | The report on LDA.gov | |
| WORLD JEWISH RESTITUTION ORGANIZATION | 2nd Quarter - Report (No Activity) | The report on LDA.gov | |
| VERIZON COMMUNICATIONS INC AND VARIOUS SUBSIDIARIES | 2nd Quarter - Termination (No Activity) | The report on LDA.gov |
Campaign gifts this registrant reported
Lobbyists and registrants report their political contributions twice a year (form LD-203). We hold these reports only for contributions to the campaign committees of members who sponsored or cosponsored a bill named in a lobbying report. Any other contribution: Not checked yet.
No contribution report we hold lists a gift from this filer.
Where this comes from
Lobbying Disclosure Act reports (LD-2), LDA.gov. We save our own copy of each page of LDA.gov's list of reports before we read it. These pages were built from our copies on .
2026-Q2: every page of LDA.gov's list saved and read.
A lobbying report states the registrant's income from the client (a lobbying firm) or its own lobbying expenses (an organization lobbying for itself), for the whole quarter and every issue together. A report of less than $5,000, or of no lobbying activity, states no figure. It is not the amount spent on one bill.
Senate Office of Public Records cannot vouch for the data or analyses derived from these data after the data have been retrieved from LDA.gov.