There are many companies providing the services to bring your site in the top most results in search engine like google but there remains many doubt in the mind of the people regarding payment and surety of getting place in the first page. So now people are looking for the companies providing Pay For Performance services.
no legitimate and established seo company will perform the service first and accept payment later. once the service is performed and client site is ranked high, service provider is then at the mercy of the client for payment. to eliminate the doubt, one should hire an established SEO company that has been in the business for a while and has some reputation/credibility. if you hire an seo company or individual that doesn't even have a website (or has a free hosted site on a subdomain) and charges $3/hour, then you know you should stay away from those people.
Ive never seen an SEO company offer Pay For Performance services. You have to pay before the service is provided.
They will never since most of them can't reach top 10 on many keywords your asking for as client. In most of the cases they take the easy keywords that even and average webmaster can't miss. (Don't get me wrong, there are also very good companies but in my experience there are more bad then good ones.)
...I have accepted payment based on delivering results if a potential client seems terribly nervous and the job is quick/low risk. I mean, in a partnership or joint venture you don't get paid immediately up front either. It's probably been luck that I haven't been screwed over by accepting payment sometimes after the work is done, but hopefully it's been karma since I haven't screwed over a client and delivered quality. Frankly, I would never, have never, and will never get SEO from someone who advertises their website on a public forum, and especially not from a site that has a "buy" button with their services. You must be brand new to the industry if you think its a smart idea to publicly list your money site. Know what's great about people that list their company on public forums? Free backlinks and backlink footprints. ^If you understand what I mean by this, you probably don't have your site listed on the forum. If you're in SEO, that means you're also a member of forums other than DP, and that means you must have heard horrible stories of people who have had their operations shut down by being tracked to their site. Getting tracked by your gmail account is also dangerous and growing increasingly more of a liability for SEO providers to send reports from or to gmail accounts. No one can guarantee first page and no one can guarantee top results. OP, people that specifically look for Pay For Performance services are not usually the most knowledgeable or scrupulous customers to begin with. If a customer asks for Pay For Performance, I'll walk away immediately because they're either not taking this investment seriously, or they really have no idea what SEO is.
Many online seo companies are not that much of effective which customer think so it creates doubt why should they purchase seo services from them. That's the reason why now people are dealing smartly with them. They ask for pay for performance service to boost their ranking. It is quite secure way to get desire ranking.
Ok, i know someone who receives payment on performance, let me know the url of your site or the keywords that you want to optimize.