Multispectral Jammer - effective against any race but weaker than the race specific versions
Magnetometric Jammer(Aqua icon)-effective against Gallente
Ladar Jammer(Red Icon)-effective against Minmatar
Radar Jammer(Gold Icon)-effective against Amarr
Gravimetric Jammer(Blue Icon)-effective against Caldari

Damage Types:
Angel's=Explosive/Kinetic Minmatar=Explosive/Kinetic Thukker Tribe=Explosive/Kinetic
Blood Raider=Thermal/EM Ammatar=EM/Thermal Ammar navy=EM/Thermal
Sansha's=EM/Thermal Mordu's legion=EM/Thermal/Kinetic Mercenary Commander=EM/Thermal
Khanid Kingdom=EM/Thermal Mercenaries=Kinetic/Thermal Guristas=Kinetic/Thermal
Serpentis=Thermal/Kinetic Rogue Drones=Thermal/Kinetic/EM

Best Damage to NPCs
Guristas-Kinetic
Serpentis-Thermal
Mordus-Thermal & Kinetic
Blood-EM & Thermal
Sansha-Thermal
Angel-Explosive
Mercenary-Thermal
Drones-Smartbombs
Amarr-EM/Thermal