Do mold remediation (cleanup) companies need to be licensed, certified professionals?

No.

Federally Regulated protocols for mold inspections, mold testing, mold sampling, and mold remediation have not yet been established by the U.S. Environmental Protection Agency, OSHA or any other federal agency.

Do your due diligence when choosing a mold mitigation company and don’t be surprised if questionable-looking characters show up at your door.