I have personally worked a technology started called 'Credant'. This company was bought by Dell just 1 year ago. Interesting enough, this is company had a variety of positions open.
-Administrative Assistant - Almost all business require someone to take of paperwork and dealing with receipts. [2% of company]
-Accounting and financial department - Again all businesses will require someone to handle the money. The CFO (Chief Financial Officer) was a very important person in the company. [10% of company]
-Quality Assurance/Test Team - This team was in charge of testing out software that developers wrote. Most of them DID NOT have computer programming background. Often enough, they were like normal users who wanted to test out our product. I believe there was almost a equal number of testers and software developer in our company. [25% of company]
-Software Developers - They are guys you hear about the most. They program the software for the company. [30% of company]
-Support Specialists - They handle customer support and satisfaction. We had a decent number of them. [25% of company]
-Sales staff - They sold our software. [14% of company]
Hope this info helps!