The only problem is when a developer takes GPL code and tries to make a derivative program using that code and then make that derivative program closed source. That is the no-no. The copyright owners of the GPL'd code have expressly forbidden that ... the GPL code is meant for the freedom of the end users, not for them to get ripped off by some downstream proprietary developer sponging of the efforts of the original GPL code authors.
What you and your company is doing is nothing like that ... you are writing your own code and using LGPL libraries in a way that they were intended to be used. I am sure everyone would join me in wishing you every success (even if we ourselves would not be interested in using yor code or your company's proprietary product).