Whether you are organizing an outdoor festival, or throwing a product launch at a convention centre, you are going to need equipment of some sort. Do your research and call equipment suppliers to discuss what your event is all about. Many large indoor facilities will have in-house equipment rentals making it much easier to coordinate so check with them first. Make sure you stick to your budget here as costs can balloon out of control if you are not careful.
Suppliers you should consider include:
1) Tenting
2) Tables, Chairs
3) Security
4) Fencing
5) Power (Generators and electrical)
6) Toilets
7) Decor/Pageantry
8) Alcohol
9) A/V Equipment
10) Signage
11) Walkie Talkies (Radios)
This list is meant as a guide to get you started. Once you have determined what your event is all about, there will most likely be other equipment you will need that is not included on the list above.