There are at least three active bands with this name:
1. Infestation - Brutal death metal - Vilnius, Lithuania - https://www.facebook.com/InfestationLT
2. Infestation - Brutal death metal - London, UK - http://www.myspace.com/infestationuk
3. Infestation - Martial/Industrial - Montréal, Canada - http://www.myspace.com/infestationquebec


Infestation (2) are a brutal death metal band from London UK. Formed in 1998 they recorded their first demo Curse of Creation.
In 1999 they signed a deal with Lunasound Recordings and released their debut album Mass Immolation in 2000 which was sold in every country in the world. A new EP called Bow to None is due for release in late 2009.
The current line up consists of Dave 'Kunt' Samuel on vocals, Kaz Hatchet on bass, Jamie Ilsley on guitar, Colin Bentham on drums and John Walsh on guitars
http://www.myspace.com/infestationuk

Infestation (3) is the martial industrial act of Louis Carrier.INFESTATION is the first Québec martial industrial attack on the perpetual cultural genocide of all cultures of Western civilisation. The project defines itself by the burning and rich orchestral textures, the fast and violent percussions which give rhythm and life to aggressive and combative vocal clamours. After a long gestation of four years, the first opus entitled Bastion Intouchable is now available on Rage In Eden records (formerly known as War Office Propaganda), one of the most famous labels for the industrial martial genre.
http://www.myspace.com/infestationquebec

There is also a Swedish death metal band, called Infestation, releasing only one 1990 demo: When Sanity Ends. They were together only through the months of February to September of that year, and decided to drop the project in place of their other project, At The Gates

Infestation is also a Swedish metal band involving Peter Tägtgren's son on drums.
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