This is a field where it is possible to get a job without a degree, but the degree opens many more doors. Once on the job, you can only keep it via excellent performance. So don't talk the talk unless you can walk the walk.
Most people get an Associates degree from an accredited college or university. Some business schools also offer acceptible diplomas (of their own), but before you go that route be sure to research the businesses where you live to make sure that they honor that business diploma. Some technicians hold bachelor's degrees (especially in electronics or computer science) and have ended up as technicians due to the economy. However, don't worry about competing against four-year degree holders (for jobs) because often employers consider them over-qualified.