All lobbying filings

Ridgeline Advocacy Group LLC

Ridgeline Advocacy Group LLC filed a Q3 report for Amber Semiconductor, Inc. on October 19, 2026, reporting $20,000 in lobbying income.

Lobbying for Amber Semiconductor, Inc. · AmberSemi is a leading developer of patented, innovative solid-state technologies.

As filed: RIDGELINE ADVOCACY GROUP LLC for AMBER SEMICONDUCTOR, INC.

All filings by Ridgeline Advocacy Group LLC · Everything Amber Semiconductor, Inc. has reported

Filing · LD-2 quarterly report Q3 report

Reporting period

3rd Quarter 2026

July 1 - Sep 30 · Posted Oct 19, 2026

Income

$20,000

What the client paid this registrant for the period.

Client based in

California

Official filing document

Lobbyists on this filing 1

BRYAN ZUMWALT

Previously held: Chief Counsel, Sen. Comm on Small Business and Entrepreneurship; Chief Counsel, Sen. Comm on Environment and Public Works; Counsel, Sen. David Vitter; Counsel, Rep. Bilbray; Clerk, Comm on Natural Resources

A "covered position" is a government job the lobbyist held in the 20 years before registering, which the law requires them to name. See the revolving door for former members of Congress across all filings.

Government bodies contacted 4

The chambers, agencies and offices the filer named. It does not say who inside them was contacted, or when. Each name opens every filing that named the same body.

Lobbying activity 1

Science/Technology

Issues related to semiconductor R&D and power density technologies in data centers

Source: federal Lobbying Disclosure Act filing, reproduced as filed. Bills are parsed from the activity descriptions.