If you truly desire your company to go global, then it must be online all hours of the day. If speed is of the essence of your business, you can capitalize different time zones by delegating work according to individual time zones. When you have a business that is ready to serve customers 24 hours a day, 7 days a week, it won't take long for you to expand.
Establish an onboarding process. Be sure that every employee who collaborates virtually has the same onboarding experience. They should be given access to the same communication systems and handbooks that explain the company processes. Everyone should be given the same advice and tools for success as they’re brought on board. If possible, it can even be very valuable to have an initial onboarding done face-to-face in an office location.