If you're organizing a conference, you'll need more than a simple assembly hall or space with a lot of chairs. The hall should be located in a building with an attractive façade and plenty of parking - participants in your conference will only be with you for a day or two, and making a good first impression is vital. You'll most likely need equipment for projecting video and sound (and you may need simultaneous interpreting capabilities). You may also need a separate space for registering participants and coffee breaks.
Standard equipment for holding a presentation includes a projector, a screen, and a microphone. These are provided at the venues, either for free or for an additional fee. See the Additional Services section. Conference halls and fitness areas could make good venues for an event of this kind.