Non-profit organization seeks association software

We are a non-profit association based in northern Germany and are looking for association software (NOT sports club software).

The software should meet the following requirements:

• Multi-client capability with comprehensive central address and member management
• Regular donations
• Donation and different contribution management
• Donation receipts
• Contribution invoicing
• Income and expenditure management
• P&L
• Balance sheet
• Asset management
• Cost centers
• Mailing from form letters
• Newsletters
• Access to database
• SEPA direct debit
• Configurable masks and tables
• Free additional fields
• Windows compatible
• Local or web-based

One to four software workstations are planned.