Doofenshmirtz Evil Incorporated, also known as either Doofenshmirtz Evil Inc. or Doofenshmirtz Corporation, is a company that's owned by the namesake Big Bad Heinz Doofenshmirtz, which also serves as his evil hideout in the Phineas and Ferb TV show. Every different version of Doofenshmirtz has a building that greatly resembles Doofenshmirtz's building.
Doofenshmirtz Evil Incorporated is a tall purple building that's roughly 55.8 feet tall. A large area is spaced to the side, leaving a huge gap. The roof is capable of retracting. The logo, "Doofenshmirtz Evil Inc." is located near the roof as a font.
The D.E.I. building appears every episode.
The Doofenshmirtz Evil Inc. has:
- Abandoned Cleaner Factory
- Abandoned Theater
- House in the Suburbs
- Hide-out Islands
- Jet Skiff
- Flatbed Micro-bus
- Aluminum Siding
- Camping Van
In every episode of "Phineas and Ferb", the D.E.I. has its own jingle. Except for other episodes, Doofenshmirtz has various activities inside and outside of Danville.
His main jingle is: "Doofenshmirtz Evil Incorporated"
"The Slacks" band sing the evil jingle.