onlinesource - 8:07 pm on Sep 19, 2013 (gmt 0)
Any spammy links built by your SEO companies should be easy to spot. You can eyeball them or use a tool such as the Boykin boy's handy-dandy backlink checker tool for Penguin and disavow analysis [backlinks.webmasterworld.com]. It's not the be all and end all, but it's a pretty good place to start.
Of course, the above is based on the assumption you determine it is a Penguin problem.
Thanks. I just checked this out and ran a report. Not sure how to make sense of it. I see where it sees the contact the developer and have them work with you in submitting disavow links to Google. Has anybody else taken them up on this? Wasn't sure who you contacted? I went to their and it had a form to fill out with a minimum budget of $5K. Hope that isn't what they charge to report disavow links.