Digital Marketing Partner

I am looking for a UK based long term Digital Marketing Agency who is Google Certified and can undertake the following aspects via a fixed monthly retainer: 1. Developing a planner of relevant ideas across Blogs, SM and PR that will engage our target audience within our focus markets which is management consultancy. 2. Executing and distributing those outputs from the above planner. 3. Off-site and On-site organic SEO with the objective of achieving a sustained Google Page 1 presence. 4. Monthly Professional blogs x 8 reaching out to our target industry sectors and geographies 5. Press Release (Professionally written and distributed) capitalising on your global media licences and outreach to journos, media and key influencers 5. Social Media Management– Developing a relevant Facebook, Twitter and Linkedin community and regularly reaching out to them with content and calls to action. I would like to have your commercial proposals first prior to issuing a more detailed document with info and relevant questions. There are 3 questions embedded within this requirement.