Before you even consider these scam artists, Google "Trailhead Marketing Complaints" and you'll be glad you didn't waste your money.
I spent nearly a thousand dollars for "online marketing" on Facebook ads. They posted a few graphics on my page - and I didn't get even one lead or even 1 call.
You can only cancel by calling in, but they don't answer their phone! They only called me back when I cancelled my credit card, but only after the deadline that allowed them to bill for another month.
I disputed with Visa, and apparently, their contract protects them from refunds - Don't waste your money on these unscrupulous con artists!
There is a reason there are no names of people on their website, or even an email address you can write them.