Modern Nonprofit Advocacy Software Built To Power Your Mission.
Muster helps nonprofits launch advocacy campaigns, mobilize members, and send real messages to legislators without the complexity, the steep learning curve, or the budget-breaking contracts of legacy tools.
Easy to use advocacy tools that help nonprofits make an impact in public policy.
Muster gives nonprofits everything they need to run high-impact advocacy campaigns without all of the complexity. Buy only what you need and get the level of support your nonprofit needs to be successful.
Buy Only What You Need
Avoid complex and expensive all-in-one solutions with Muster. Buy only what your nonprofit needs to drive engagement and impact.
Launch Campaigns Fast
Quickly drive action around the issues at the heart of your nonprofit with high impact advocacy campaigns.
Industry-Leading Support
Don't be left waiting for an answer. Chat in-app with a Muster team member, hands-on onboarding, training calls, and more.
Embed Campaigns
Don't want to use our landing pages? No problem. You can embed our advocacy and sign-up forms directly into your own website.
Easy To Use
Powerful advocacy tools don't need to be complicated, so we made them easy. Modern design and workflows make Muster the #1 rated easiest-to-use platform according to G2.
Local, State, & Federal Targeting
From your local city council to the halls of congress, we've got you covered. Wherever your issue lives, make sure your messages are delivered with confidence.
Drive grassroots action with the voice of your nonprofit's supporters.
Creating nonprofit grassroots campaigns that unite your advocates and drive them to action shouldn't be difficult. That's why we made Muster the easiest-to-use grassroots advocacy software out there.
Embeddable Action Forms
Advocate Form Auto-Fill
One Click Advocacy Actions
Advocate Message Customization
Message Rotation and Mapping
Custom Thank You Page Messaging
Exportable In-Depth Analytics and Reporting
Petition Campaigns

Hear From Nonprofit Leaders Why They Love Muster
I appreciate how straightforward it is to use Muster for my organization's e-advocacy campaigns. In addition, their help desk is *fantastic* - they always get right back to me with an on-target solution to whatever I'm looking for.
Muster has been a wonderful addition to our statewide grassroots advocacy efforts. We were able to easily implement the software within days of signing our contract. With a small staff, the ability to integrate quickly is not only a want, but a need. It has allowed for us to mobilize incredibly quickly when there is a need for advocates to reach out to their legislators.
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.
G2's #1 Rated Advocacy Software for Ease-of-Use, Support, and More.
Achieve your nonprofit's advocacy and public policy goals with confidence. Our high-impact advocacy software is backed by industry-leading support to ensure your grassroots campaigns always hit the mark. Muster is the easiest way for nonprofits, associations, and more to win.
Built for advocacy. Designed to work with your nonprofit 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.
See Muster's Nonprofit Advocacy Software In Action.
Book a 30-minute live demo tailored to your nonprofit’s advocacy needs.
On your demo call:
- A live walkthrough of how Muster works for nonprofits
- We’ll show you how orgs like yours run campaigns, drive action, and report impact
- You’ll get transparent pricing — no waiting for a proposal that takes a week

