Beginning in 1990 I worked in retail computer sales serving businesses and government agencies in the Midlands of South Carolina. By 1995, I started my own tech support company.
Since then, I've supported creative service departments and companies in a variety of ways from network and user support to web-based data management applications.
My clients have ranged from home office owner-operators, Fortune 500 companies, and state and federal agencies.

Mac or PC? Anyone who says there is only one choice (PC or Mac) for all scenarios not the right choice for tech support.
Would you use a Porsche 911 to pull a trailer with a load of turnips just because you like Porsches?
I spend a lot of time in both platforms and they both do a great job - if you choose the right one for the task.
Knowing how to make both operating systems work together for your company is an advantage I can bring to your problem.