During the past two decades free-lancing in the Pacific Northwest, I've done voice work for a large list of clients. Just to list a few, in no particular order: Microsoft, Boeing, Alaska Airlines, Amgen, Weyerhaeuser, R.E.I., Farmers Insurance, Safeco, the Seattle Times, and the State of Washington.
I have a BS in business, with an emphasis in marketing and economics. Then, during the 80's, I worked in radio, largely as a sportscaster. Go figure. I have also acted extensively on stage (including musicals!), as well as in commercials, TV, and a couple of feature films. Claim to fame: I got to do a scene with Robert DeNiro in "Men of Honor" in the late 90's, as well as an episode of "Northern Exposure" during its final season.
In more recent years I've had the opportunity to do a lot of medical-related work, including moderating a series of programs (live and recorded) for various biotech clients.
I just recently built a new home, and set aside a large closet space specifically for a studio. I had it soundproofed (as best I could), and then hired an engineer from Microsoft Studios to help me set it up. I use a Rode NT1-A mic, and record to Pro Tools 10, which I run on my Mac.