How can a person tell if a marketing company is real or a fraud on the internet?

Try searching their name on the internet. I%26#039;ve looked up marketers on the internet, and have found several search results come up of peple who were writing about a particular marketer, and there fradulent ways.
How can a person tell if a marketing company is real or a fraud on the internet?
See their website and check whether they include their company address and correct phone numbers, then call and check it, so it will be very useful for you to know about the company.
How can a person tell if a marketing company is real or a fraud on the internet?
Write their name on google + the word scam, if you find websites or people writing it%26#039;s a scam then it probably is!