Case Study: Primaire Populaire mobilizes 430K supporters with NationBuilder

Primaire Populaire utilized their volunteer's momentum to mobilize supporters to action

Primaire Populaire, a French political campaign, needed to replace its volunteer management system with a more robust way to organize and mobilize supporters ahead of an election with only two months to go. Using NationBuilder’s community relationship database, the team sought a better infrastructure to engage its core volunteers, coordinate outreach, and support fundraising and advocacy.

NationBuilder implemented social capital tools, leaderboards, filters, and broadcasters to help Primaire Populaire track actions, surface top contributors, and distribute leadership across its supporter base. The result was significant growth: 5,000 active volunteers, 40,000 contributing donors, and 430,000 new supporters, showing how NationBuilder helped turn volunteer momentum into large-scale mobilization.