01 · Mobilize
The numbers behind campaigns that win
Built to make your advocates' voices heard by policymakers.
Form letters get filtered. Petitions get counted and forgotten. ThunderShout is built around the one thing lawmakers can't ignore: a real constituent, in their district, telling their own story.
Every message is one of one.
AI drafts from each advocate's own words and story, so a lawmaker reads a constituent, not a campaign.
Verified, not assumed.
Every action is matched to a real constituent in the right district, timestamped, and auditable.
Seven channels, one send.
Email, calls, SMS, social, petitions, regulatory comments, and video — all from a single campaign page.
One platform. Two jobs.
Mobilize your supporters and grow your advocate base — in one login, with reporting built in.
We went from 400 form letters nobody read to 6,000 personal stories the committee staff actually quoted back to us.
Clean-energy company
Our members finally had a one-click way to speak up, and the dashboard told us exactly who in the Capitol heard them.
National trade association
Launching a statewide campaign used to take weeks. Now it takes an afternoon, and every action is verified.
Labor union
Personalized Grassroots Advocacy Software
Design, launch, and scale campaigns with messages unique to each advocate. From one-click actions to board-ready reporting, the platform adapts to your strategy so you engage supporters and move decision-makers.
Frequently Asked Questions
Do you have more questions?
Our team is here to help you explore how ThunderShout can support your goals.
What is grassroots advocacy software?
Technology that helps organizations mobilize supporters to contact elected officials: collecting advocate information, personalizing messages, and delivering them to the right offices while tracking every action.
How does advocacy software help organizations?
It turns latent support into measurable pressure: campaigns launch in hours, advocate data auto-fills forms to lift conversion, and analytics show exactly which offices were reached and how lawmakers responded.
Who uses ThunderShout?
Agencies, corporations, mission-driven organizations, membership organizations, business coalitions, government relations firms, and labor organizations — from targeted vote whips to year-round programs across all 50 states.
What makes ThunderShout different?
Every message is unique to its advocate, every action is verified to a real constituent, and all seven channels run from one campaign page — with reporting leadership can act on.
How much does ThunderShout cost?
Plans start at $500/month for up to 5,000 advocates, with Growth ($1,000) and Pro ($1,500) tiers for larger programs. Every plan includes all seven channels. See plans →