Make Your Mission A Reality Through Grassroots Action.

Organize, engage, and measure your nonprofit's advocacy efforts with Muster. The #1 easiest-to-use advocacy and public affairs software on G2. See how Muster can help you drive influence public policy to create a better world.

Muster Advocacy Software For Nonprofits

Give Your Greatest Supporters A Voice In Public Policy

Empower your nonprofit organization with Muster, the ultimate platform that not only impacts public policy and provides insight into advocate engagement. Give your greatest supporters a voice and ensure their voices heard are considered by policymakers at every level of government. 

Communicate With Legislators

Create campaigns that allow your advocates to communicate directly with legislators. Influence public policy with the voice of your supporters.

In-depth Analytics

Gain valuable engagement insights and understand your action takers with comprehensive analytics that can be exported.

Thank and Donate

Prompt your advocates to donate to your nonprofit after they take action with a built-in donation button on your campaign thank you page.

Petitions Made Easy

Gather signatures and new supporters with petitions that allow you to educate your audience and easily capture their information.

Buy Only What You Need

Our flexible advocacy platform allows you to buy only what you need to succeed. Pair your current nonprofit's solutions with Muster to get what works for you.

Industry-leading Support

Get more than just software. With Muster you get a team that cares about your wins. Live in-app support, webinars, help articles, and more to support your advocacy efforts.


How Muster Works.

It's as simple as create a campaign and watch your supporters go to work. With our easy-to-use platform it's not only easy to build policy influencing campaigns, it's easy for your advocates to take action on them.

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Build Your Campaign

In less than 15 minutes you can build a captivating campaign that targets local, state, and/or federal elected officials and regulatory bodies. Create a highly engaging landing page branded for your organization and its policy issue.


Send It Out

Using our email and text messaging platform or your own, send out your campaign to your advocates and watch change happen! Embed your campaign on your website with easy to embed action forms. Built-in social sharing allows your campaign to be easily shared by your advocates.


Measure and Win

Get data and insights into your campaign and action takers. Find new advocates created from your campaign for retargeting in fundraising campaigns. 

Get the tools your nonprofit needs to win, backed by our unparalleled support.

Whether you're new to advocacy or a seasoned pro, our powerful, easy-to-use platform makes influencing public policy a click away. 

Muster is extremely easy to use, making it a great tool for novice users and seasoned organizers alike. It delivers everything it promises, and is backed up by excellent and responsive customer service and support.


Learn more about engaging your supporters in grassroots advocacy and impacting public policy.

Discover our most popular resources for nonprofit leaders seeking to enhance their knowledge of grassroots engagement and how they can impact public policy.

Harness the power of your supporters' voices to make a real impact on public policy.

Request a demo to discover how Muster can help your nonprofit grow and influence public policy with grassroots advocacy.