Posted by Lindsay When I was an in-house SEO I hired outside SEO consultants. Now as the outside SEO consultant I often work with in-house SEOs. In the comments of my most recent post, an interesting question came up, "...why would a company who has an in-house SEO expert hire an external company?" Here are 8 excellent reasons why talented in-house SEOs often bring in outside help. 1. Specialized Expertise Not too long ago, SEO was a niche marketing specialization.