How to to know that these guys are best in marketing?

[erryliu]

If I want to hire an agency of marketing then how should I know that these guys are best in that work? and not scam people!.

[eoinfinnegan]

Could you explain what you mean by marketing before I attempt to answer this question.

[mariokluser]

You can do some research on them. With some common sense and researching skills you can weed out the bad ones.

[misscrystal]

As eoinfinnegan said, the word marketing can mean many different types of promotional activities, so you need to be specific about what kind of marketing you are talking about.

[vikramyadav2896]

you can easily to find them with the help of feedback rating as well as service