I often use a mind mapping exercise. You start with a word that's central to your product or service and then branch out with words that spring to mind. You'll be surprised by how the associated words in your thought cloud will bring forth great imagery. Additionally, this exercise is great for logo design ideas.

Just be sure whatever you come up with is easy to spell and recall. Also, your name strategy should be 'future oriented'. If you should pivot will your name still work? Think ahead of how your product & services may evolve over time.