Marketing- SEO

We are a new company planning to provide various services through 5 different websites. We need to get the sites developed. Each site is estimated to have 15 – 25 pages. Posted add for web development and got recommendations to get that developed in Worpress. I am getting the web content done and I am going to award the web development projects by 9th July 2012 and hoping to have 3 sites running by 22nd July 2012.
We are looking for experts who can do the right marketing either through SEO or by other means. It will be interesting to see increased traffic and Rankings in the search Page’s like Google for our web sites. The ultimate aim is to get customers.
Please get back to us with your proposals or recommendations.