Bigtent Alternatives

Organization management tool to support membership, subscriptions, event planning, and outreach.

Free Group Website, Membership Database, Listserv Mailing List, Online Group Management Software : GroupSpaces

Membership and events for SMEs and nonprofits

Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.

Create your own free and unlimited private social networks.

Start doing more in less time with StarChapter's association management software and chapter association management software. We will help your chapter grow. Schedule a live demo today!

Membee is web-based membership management software.

Tendenci - The Open Source AMS is a cloud-based​ all-in-one management solutions for Non-profits and associations.

freemium

Agorakit is web-based, open source groupware for citizens.

ClearVantage is an association management software with tools and features needed to run association in one integrated solution.

DownToMeet is a platform to organize, find, and attend group events.

Galette is a membership management web application towards non profit organizations.