Sega AM11 was a development division within Sega that was founded in June 1998 when some staff at Sega AM2 were reassigned. 

On May 11, 1999, Sega AM11 was renamed New Entertainment Research & Development.

Games by Sega AM11
1999
3D Arcade Beat 'Em Up Update. Spike assembles a team to save Diesel Town with two new stages and bonus stages plus new cutscenes.

1998
3D Arcade Beat 'Em Up. Spike assembles a team to save Diesel Town.