Here is a small marketing tip for you if you want to get quality leads:

Define your Audience: Who is your audience? What is their job title? Which region?

Lets take for example: I want to target HR manager to sell them my HR Platform:

Here are my plan:
Scrap First/Last Name/Company name from LInkedin.
Scrap HR Database (indeed.com, monster) for HR Emails.
Extract Profiles ID of all users who liked a HR Application.
Partner with an HR blog to install my Cookie Remarketing.
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What you do with all this data?
All the scrapping data which you collected, you will upload it to Adroll, Facebook, Twitter.....
This way, you target all your potential clients. Doing this way, your CPL will cost around 25$ and you will have 300% more revenue.

Old marketing technics don't work, marketing is evolving, so marketing strategies are evolving.

This is just a tip, you will have to research for your self or we can schedule a call and provide more guidance.