Internet and Software
- AppAssure Software (Reston)
- Applied Predictive Technologies (Arlington)
- Booksfree (Vienna)
- Capitol Advantage (Fairfax)
- Clarabridge (Reston)
- ComScore (Reston)
- Geeknet (Fairfax)
- ThinkGeek (Fairfax)
- I-agent (Fairfax)
- Motley Fool (Alexandria)
- Mythic Entertainment (Fairfax)
- ThinkFun (Alexandria)
- Wrong Planet (Fairfax)
Read more about this topic: List Of Companies Headquartered In Northern Virginia