MUSTER ADVOCACY CAMPAIGNS SOFTWARE

Send messages to elected officials, measure your impact, and influence public policy.

Create advocacy campaigns that drive action around public policy and regulations with the voice of your advocates. Measure your impact with in-depth analytics and reporting. Turn passion into wins for your organization.

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Muster Grassroots Advocacy Product Page
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POWERFUL FEATURES TO EMPOWER YOUR MISSION

What can you expect from the easiest-to-use advocacy software?

Everything you need to amplify your voice — from city hall to the halls of Congress. All backed by our industry leading customer support. Discover why Muster is the go-to choice for organizations wanting to effectively advocate in public policy and regulatory battles. 

 

Local, State, & Federal Targeting

From city hall to the halls of Congress and everywhere in between—you get complete access to our comprehensive set of officials.

Embeddable Action Forms

Allow advocates to take action directly from your website with our embeddable action forms. These responsive forms are easy to use and can even be styled using CSS.

Message Approval

Verify and approve advocate messages for delivery. Ensure your messaging hits the mark and makes its intended impact on legislators.

Message Rotation

With our generative message creation, build more organic advocacy campaign

Message Mapping

Map different messages to specific elected officials to make your campaigns even more targeted.

Advocacy Report Builder

Measure success with in-depth analytics and reporting that tells the story of your efforts. Export analytics and message reports to share with team members, stakeholders, and decision makers.

Regulations.gov Comment Submission

You give us a docket and we'll get you up and going. Have your advocates easily submit comments to HHS, FTC, EPA, and more with Muster.

Petition Mode

Build petition campaigns to target legislators and custom targets to capture support and build momentum behind your cause.

ALL-INCLUSIVE TARGETING

Federal, State, and Local Legislator Advocacy. Included in every plan. 

Your campaigns shouldn’t be limited by what your plan covers. With Muster, every advocacy plan includes full access to our federal, state, local, and regulatory data. No premium tiers to unlock it and no add-ons to buy. Every official and agency, ready when you need them.

That means when a federal agency opens a comment period, you can mobilize supporters that day. When a vote comes up at city hall, you can put your members in front of their council representatives without waiting on a contract change or a budget approval. And as your advocacy program grows into new issues and new levels of government, your access is already there to meet it.

One subscription gives you complete reach.

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Federal Advocacy

Connect your supporters with the federal legislators who represent them. Muster helps you target members of the U.S. House and Senate and mobilize advocates around your policy priorities. With over 15 years of experience delivering advocate messages to all of Congress, we bring deliverability expertise to your federal campaigns.

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State Advocacy

From Alabama to Wyoming and every state in between, we've made state-level outreach easy. Connect with elected officials in all 50 states with every Muster advocacy plan. Muster has built the systems to deliver advocacy messages across email, web forms, and phone calls, ensuring your advocates are heard at the state house. 

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Local Advocacy

All politics is local. With our local data, you can target city councils, county councils, school boards, and more, by district. Connect supporters with the elected officials who represent them. We handle targeted message delivery so you can focus on mobilizing your community.

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Regulatory Advocacy

Mobilize your supporters when regulatory dockets open for public comment. Muster helps your organization drive comments on proposed rules during open comment periods, giving advocates a clear way to weigh in on the regulations that affect them.

REVIEWS AND TESTIMONIALS

The trusted solution advocacy professionals rely on to make an impact.

Muster is flexible and expandable to meet potential future needs. It allows us to mobilize our members to contact their elected officials with clear, consistent messaging and an uncomplicated and user-friendly experience for administrators and users.

VP of Public Policy, NYSHCP Laura E.

Muster is extremely easy to use and generates a great published product, rendering a 75% increase in the number of people who send a message after landing on the messaging page. That, combined with their extremely reasonable pricing leads us to recommend them to anyone looking for a fabulous grassroots provider.

Director of Communications & State Advocacy, Cigar Rights of America Cody C.

Muster is a great overall value. It provides us with everything we need in strategic grassroots advocacy software. Muster takes it to the next level by better informing our Congressional engagements, providing us analysis on which districts receive our correspondence. This allows us to tailor our messaging and make in-roads with members whom we may not have had prior relationships with.

INDUSTRY LIAISON Blaise L.
Muster Advocacy Campaign Software
EMBEDDABLE ADVOCACY FORMS

Single-step advocacy forms that are built to drive action.

With Muster, advocates get matched and send their message all in one step. That means fewer clicks between them and their elected officials and more advocacy engagement for your organization.

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⚡️ AI-POWERED MESSAGE ROTATION

Less Work. More Impact. Better Results.

With a single click, generate more unique messages for your Muster advocacy campaigns. Your generated messages will automatically rotate for advocates, giving your Muster campaigns more authenticity without all the extra work.

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GET WHAT WORKS FOR YOU.

Advocacy software has never been this easy.

Experience powerful grassroots advocacy without the burden of investing in unnecessary tools. Pair Muster's Advocacy Only plan with your existing CRM, email marketing platform, CMS, and more to streamline and enhance your advocacy program. 

Get access to our Zapier integration to pair Muster with popular apps like MailChimp, Virtuous, Bloomerang, ConstantContact, Hubspot, and 7000+ other apps.

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Advocacy Only

Full access to our grassroots solution to drive advocate action and measure results.

Pricing varies based on the # of unique advocates

  • check-mark-button Muster-Hosted Advocacy Action Centers
  • check-mark-button Embeddable Action Forms For Your Site
  • check-mark-button Local, State, Federal + Custom Targeting
  • check-mark-button Message Rotation + Message Mapping
  • check-mark-button Regulatory Comment Submissions
  • check-mark-button In-Depth Analytics & Reporting
  • check-mark-button Exportable Analytics & Reporting
  • check-mark-button Industry-Leading Support
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BREAK FREE FROM THE BUNDLE

Built for advocacy. Designed to work with your organization's tech stack.

We're not trying to replace your fundraising or CRM tools. Our mission is to make your nonprofit more effective by handling advocacy the way it should be. Intentionally, efficiently, and at scale. Not as an afterthought.

If advocacy is a core strategy, Muster is the better choice. 

RESOURCES

Grassroots Advocacy Resources

CALCULATOR

Advocacy Engagement Calculator

Find out how many advocates you can engage, how many messages you could send, and what your impact could be with Muster.

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ARTICLE

Best Advocacy Software in 2026: Top 10 Platforms

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CASE STUDY

10,000 Messages in 90 Days

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CHAT WITH US

See how Muster's advocacy campaigns can help you engage and influence in just 30 minutes.

Book a 30-minute call with a member of our team. We'll chat about your needs and show you the Muster advocacy platform in action.

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