Hi, just a first take at something fresh, hip, young, but yet professional and classy. Your line of work covers such a broad range of services and one "icon" or graphic could not sum it all up in one shot. So I've gone with an abstract spot light theme. You are usually trying to shine a spotlight, so to speak, on their event, or services, so this metaphor works in such a broad range it can be taken as many things. It also has 3 beams of light to reinforce the "3" in Project3.
Hope it might suit your business and brand you are trying to convey.
Thanks
W