We have been searching for clients in the Reno, NV area, but without knowing where equipment is located what do you think is the best way of finding good clients or clients at all?
I would certainly contact the manufacturors of the equipment you repair, and ask them about any possible certification program : this may be formal or informal, but this approcah will provfe your professionalism to them.
Then, offer them to send you a couple of referrals for field service, to prove your competencies.