Shure Incorporated is an American audio products corporation, founded by Sidney N. Shure in Chicago, Illinois in 1925 as a supplier of radio parts kits. The company manufactures microphones, wireless microphone systems, phonograph cartridges, mixers, headphones, high-end earphones, personal monitor systems, and some other goods.

Here are full list of Sennheiser comparisons on this website :

Shure Vs Shure
Shure SM58 Vs SM57

Shure Vs Westone
Westone UM Pro 10 Vs Shure SE215
Westone UM Pro 20 Vs Shure SE425
Westone UM Pro 30 Vs Shure SE535
Westone W10 Vs Shure SE215
Westone W40 Vs Shure SE535
Westone W60 Vs Shure SE846

Shure Vs ...

Shure Vs Others
Bose IE2 Vs Shure SE215
Etymotic HF5 Vs Shure SE215
Shure SRH1840 Vs Sennheiser HD650
Shure SRH440 vs ATH-M50
Shure SRH840 Vs Audio-Technica ATH-M50
Shure SRH940 Vs Beyerdynamic DT 770