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DH

DANIEL HARDER

MAYER BROWN LLP · Washington, DC
Registered · LDAActive

At a glance

Works on
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Background

Career
Washington, DC · current

The past 12 months

Clients
12
past 12 months
Filings
12
past 12 months
Agencies contacted
HOUSE OF REPRESENTATIVESSENATEU.S. Trade Representative (USTR)Commerce, Dept of (DOC)Environmental Protection Agency (EPA)Food & Drug Administration (FDA)Labor, Dept of (DOL)Treasury, Dept of

Specific issues

Issues related to H.R. 1 (One Big Beautiful Bill Act).
Taxation/Internal Revenue Code · 2026 Q1
Issues related to Department of Labor claims processing reforms.
Insurance · 2026 Q1
Issues related to trade and tariffs.
Trade (domestic/foreign) · 2026 Q1
General issues relating to Section 232 National Security Investigation of Polysilicon and its Derivates.
Trade (domestic/foreign) · 2026 Q1
Issues related to trade and tariff policy.
Trade (domestic/foreign) · 2026 Q1
Issues related to wearables and health technology.
Taxation/Internal Revenue Code · 2026 Q1

Clients

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2026 · 1 filing
$██,███ / qtrFree in beta
2026 · 1 filing
$██,███ / qtrFree in beta
2026 · 1 filing
$██,███ / qtrFree in beta
$██,███ / qtrFree in beta
2026 · 1 filing
$██,███ / qtrFree in beta
2026 · 1 filing
$██,███ / qtrFree in beta
$██,███ / qtrFree in beta
$██,███ / qtrFree in beta
$██,███ / qtrFree in beta
$██,███ / qtrFree in beta

Sources

This profile is built from the public record: filings in the U.S. Senate Lobbying Disclosure Act system. lda.senate.gov ↗

Recent filings12
2026 Q1
STARR INSURANCE HOLDINGS, INC.
Q1lda.gov →
2026 Q1
SOLONIAN RESOURCES, LLC
Q1lda.gov →
2026 Q1
PRIMEMAX MEDICAL INDUSTRIES, INC.
Q1lda.gov →
2026 Q1
GALAXY DIGITAL HOLDINGS, LP
Q1lda.gov →
2026 Q1
MICHELIN NORTH AMERICA, INC.
Q1lda.gov →
2026 Q1
SYENSQO USA LLC
Q1lda.gov →
2026 Q1
U.S. VENTURE, INC. (FORMERLY U.S. OIL)
Q1lda.gov →
2026 Q1
COALITION FOR REGULATED HFCS INC.
Q1lda.gov →
2026 Q1
NOVOCURE
Q1lda.gov →
2026 Q1
ITO EN (NORTH AMERICA) INC.
Q1lda.gov →
2026 Q1
OURARING INC.
Q1lda.gov →
2026 Q1
SUNIVA, INC.
Q1lda.gov →