Professional onsite and offshite SEO

We are actively looking for a professional SEO company to work on our website, the tasks would include onsite and offsite SEO work on our website, which includes first a thorough analysis of our current onsite state, and from there we would like to resolve any SEO matters then proceed with offsite SEO which would includeSocial Media Marketing, high quality link building, Video marketing, image marketing, document marketing, and audio marketing. We will share more information once we select a candidate.