#48 and #50, match well together and have a better contrast, the logo can be used in those two different forms shown. which is an advantage.
so you can utilize it, basically as shown in #50, that would be your pictorial symbolic icon logo, that will be branded and used for relating to your company and recognition and in #48, thats another way of using or utilizing it. also the symbol in #50 can be placed horziontally on the left of your name and will still look good and proffisional.
in both, only the first name " Berkel " is highlighted in purple while " Business Solutions " are in dark grey and to link that contrast in name, its shown in the logo itself, so only the first bar is purple, other two follow are dark grey.