Recommend me a good SEO

For 12 years I managed my own SEO, quite successfully until recently.

I think I need a fresh perspective, a more objective look. Can you recommend me a solid SEO white-hat company with people that really know what they're doing? I'm not looking for content writers or low-authority links.

What I need is a great audit, research of the competition and a solid plan.

(don't advertise your own business, I'm looking for people who can genuinely recommend a service)