Federal Lobbying & Government Affairs

When you need help in Washington, DC...Diamond Advocacy is your voice

Diamond Advocacy is your trusted advisor in our nation's capital. Diamond's founder Mike Barbera has been delivering client wins for over 20 years - everything from appropriated funds, policy victories, and regulatory relief.

Every client is different, but the recipe for success is the same: a good plan, supported by old-fashioned shoe-leather lobbying.

If you want a zealous advocate who will never get out-worked, we are the firm for you.

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Our Expertise

Our Expertise

At Diamond Advocacy, we pride ourselves on finding bi-partisan solutions to complex problems. Whether the goal is appropriated funding, an innovative policy provision, or solving an issue with the federal bureaucracy, we have more than 20 years of proven client success.

Defense

Defense

Defense is a mainstay of our business. We represent large contractors, suppliers, and smaller defense innovators.  We work the authorization and appropriations process — from the National Defense Authorization Act to annual defense spending bills.

Homeland Security

Homeland Security

Our deep relationships across the homeland security community allow us to advance client priorities on hot-button topics like border and maritime security, emergency management, and federal law enforcement.

Energy

Energy

We work with utilities, traditional energy producers, and renewable energy leaders to navigate an increasingly complex regulatory and legislative landscape  that includes multiple congressional committees and many regulatory agencies.

Resources

Resources

Our experience includes several clients in the resources and critical minerals fields.  These industries have both civilian and national defense impacts, and they must deal with complex and often overlapping jurisdictions and oversight.

Higher Education

Higher Education

We represent colleges and universities before Congress and federal agencies, securing research funding, assisting with federal grants, advancing institutional priorities, and navigating higher education policy.

Transportation

Transportation

Federal transportation priorities include aviation, rail, highways, mass transit and maritime. Each have their own set of stakeholders and congressional champions.  We have helped several clients navigate this process and notch funding and policy victories.

Why choose Diamond ADVOCACY?
35+

Years of WASHINGTON Experience

Decades of relationships built across administrations, Congresses, and agencies.

100%

Bipartisan Reach

We work both sides of the aisle — because winning requires access everywhere.

Proven

Legislative Wins

A twenty-year track record of turning client priorities into legislative victories.

Client Testimonials

What our clients say about Diamond Advocacy's founder Mike Barbera...

Mike has been our trusted advisor and lobbyist for several years, helping us successfully navigate some of the most challenging issues facing our industry. Whether preparing for high-profile congressional hearings or addressing complex NDAA matters, he has been a critical partner every step of the way. Mike is proactive, strategic, and understands our business inside and out. His extensive network and longstanding relationships on Capitol Hill and the broader Washington policy community are unmatched, and his credibility with key decision-makers has been invaluable. We trust his judgment completely and deeply value his friendship.

Current client, private sector partner of the Department of Defense

Mike has been our lobbyist for more than twenty years, and in that time we've dealt with just about every issue you can possibly imagine. He's a pleasure to work with - a real pro.

Higher Education Client

I have worked with Mike for over 15 years in several different capacities, and I've been amazed at his ability to get things done on the Hill. He almost single-handedly saved critical research programs when they were targeted for elimination, and he's helped secure hundreds of millions of dollars in funding for a new initiative that helped revolutionize our industry. Mike has great insight and judgement, and he works hard. What more can you ask for?

Longtime client, aviation industry

Ready to Win in Washington?

Let's talk about what Diamond Advocacy can do for your organization.

Diamond Advocacy

A modern federal lobbying firm delivering results in the U.S. House, Senate, and Executive Branch.

Your Voice. Our Access. Results.

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Diamond Advocacy is a registered lobbying firm. Lobbying activities are conducted in compliance with the Lobbying Disclosure Act of 1995 and all applicable federal regulations.