An overview of the company entity model is below -

Here's the data converted into a markdown table:
| Entity | Relationship | Description |
|---|---|---|
| Address | One to Many | One or more Addresses for the Company |
| One to Many | One or more Email Addresses for the Company | |
| Telephone | One to Many | One or more telephone numbers for the Company |
| Contacts | One to Many | One or more contacts at the company |
| Activities | One to Many | One or more tasks involving the company |
| Bookings | One to Many | One or more Bookings involving the company |
| Issues | One to Many | One or more maintenance issues involving the company |