Make Your Nonprofit's 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 action.

Muster Advocacy Software For Nonprofits

Trusted By Nonprofits, Large and Small.

Whether you have one supporter or one million — our platform is built to not only help you grow but drive large-scale grassroots advocacy initiatives too. 


Start Engaging Your Community And Making It Better.

Action Centers

Create highly customized action centers where you can embed videos, have rotating messages, and more.

Local, State, and Federal Targeting

Whether you're a local org or a national one, we give you the ability to reach city hall or the halls of congress, and everywhere in between.

Built-In Donation Button

Drive donations from your advocacy campaigns and derive even more value from your efforts to power your advocacy with our built-in donation button.

Industry-Leading Support

Our team makes sure you get the most out of our product and that your advocates have the best possible experience with our platform.


Visualize Your Impact.

Know where your action takers are, map that data and use it to power your advocacy efforts. 


Start Creating Campaigns And Making A Change.