Prevent Hardcropping on Essential Grid

Hi, we're using an essential grid to create a company portfolio here:

http://bgcmembers.com/companies/

Here, we had to manually resize all the images into squares to get it so it wasn't hard cropping the wide/squat text logos.

Is there any way to prevent essential grid from hard-cropping so we can avoid this in the future?

Thanks!

Benji