I'd be leery of any recommendation I got via an anonymous website. But right after I read your post I saw the article linked below, which references a monitoring company.
But you need to do due diligence.
Vibration monitoring is not usually done by a contractor, but by an engineering firm. There are several firms in South Florida that can do this. Try Mactec, Nodarse, or similar geotechnical/materials engineering firms in the area.