help sb do sth v help sb to do sth?



Is there a context when "help somebody TO do..." is considered grammatically
correct? I'm reading a company document written in good English, and they
say:
"...we are able to help our clients succeed by..."
and a few lines down:
"...we can help your company to succeed in..."
no so good English then, or is there any context where the above might be
correct?

marek


.