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Tendenci

Open source association management software for nonprofits and membership organisations

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  • Founded 1997
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About Tendenci

Tendenci is a US-made, open source system for running membership bodies and nonprofit organisations. A single platform covers members, events, donors, job listings and the organisation's website.

Services

  • Membership management: joining and renewal, membership categories and groups, a searchable directory and access levels.
  • Content management: staff can update pages, news, articles and photo galleries with no coding knowledge.
  • Community forums: online spaces for members to exchange questions and answers.
  • Reporting: covers memberships, events, invoicing and donors, printable or exportable.
  • Open database access: because the software is open source, users can query the underlying database directly for custom reports and edit site templates through a theme editor.

Customers and markets

Tendenci serves nonprofits and membership associations of varying sizes.

Key facts

  • Based in: United States
  • Licence: open source
  • Users: more than 1.4 million, as stated

Profile written by TrustList from the business's own published information, Sep 2026.

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