How do you find a truely knowledgable SEO person to analyze are large site?

[CTSupp]

We are a large site, 5600 pages with local pages in almost every city across the US. We are struggling with page rank on some pages and I dont think its as simple as backlinks and its definitely not poor on-page SEO.

I think we might have some truly technical issues that is causing us to get penalized in SERP's.

Any agencies which analyze sites? This is NOT a job posting so please don't send me messages...I truly want to know how/where to find a solution to our problem.

Thanks

[Klarke]

I'd start by looking here:

http://www.seomoz.org/article/recommended#seo-consulting

[irvingw]

Ask a SEO who is currently working for a large enterprise

[EGOL]

5600 pages with local pages in almost every city across the US

If you find a smart person the first things that they will do are....

-- look at those 5600 pages to see if they are cookie cutter, duplicate content, or thin content

-- then they will check for adequate linkjuice to index 5600 pages, hold them in the index, make them competitive

You can check some of that yourself.