Organization seeks an address management system for members and non-members with integrated event management

We are looking for an address management system for members and non-members with integrated event management for our association.

The software should meet the following requirements:

• Address management for members (possibly with member profiles) and non-members
• Creation of special mailing lists (e.g., for various topics)
• Membership fee management
• Invoicing with sequential invoice numbers. No accounting functions in the sense of financial accounting are required.
• Membership fee invoices
• Event invoices
• Import of old data from existing software
• Event management (seminars, conferences, discussion groups)
• Interfaces to:
• Mail merges (letters and emails)
• MS Word and MS Excel
• Optional integration with our own website (login for members)
• Optional self-management of member accounts (address changes, etc.)
• Optional in-house training

We plan to have 4–5 software workstations.