SEOmoz

SEOmoz develops SEO software, provides a robust link intelligence API, and hosts the web’s most vibrant SEO community. They’re based in Seattle, but they’re often found traveling the globe to participate in marketing events and meetups. They’re also incredibly fortunate to have the most helpful and cuddly robot in the Solar System. Oh, and by the way, they’re hiring a few good people.

Visit their website for info, pricing or job here: SEOMOZ

Also reed this info from Wikipedia.

Thank you, Andy Ols