Now, there are two ways to niche: you can niche vertically by industry or horizontally by skillset. And if you do one, you can do the other when you're ready.

For example, if you start with a vertical: if you've worked with several different industries, you know which you enjoyed most and which you enjoyed least. Whatever you enjoyed most makes up your niche. Now if these verticals are polar opposites (restaurants and government), but you don't want to choose among them, go horizontal by picking one set of services you enjoy and creating a profitable package suited to each vertical. Now you've created your own unique niche with a single specialty service for a handful of verticals you want to focus on exclusively.