I would agree with most of the contributors to this - Have you considered the meeting and conferences market. I assume with IT you are hiring PCs Screens , Projectors etc etc. There is opportunity to offer simple audio solutions, radio microphone and small Pa systems to your existing clients. With the availability of cost effective battery uplighting you could also offer lighting packages to suit . Just an idea I would however wait until the Covid19 virus goes away first. Please get in touch for price ideas.