Rebranding and build a website for IT services company

We are an IT services,where we provide the following

Software (Workforce Management System, HCM)
Managed Services
Data Science and Analysis
HR Consultation
IT Consultation
ERP Implementation governance
Digital transformation

We need to do rebrandingredesign for our corporate website including

Languages (English)
Company Logo
Website (including graphic design and all related)
Graphic design for the servicesproducts for the use inside the website
Creation and design of LinkedIn Account
Social media integration
Color scheme
Copywriting for all website contents (I can provide explanation and high level data)
Video with voice over (Two for every services) for use on social media (such as LinkedIn, Facebook, other)
Two Video with voice over for company as an overview for use on social media (such as LinkedIn, Facebook, other)
Marketing banners (3 for every service) for use on social media (such as LinkedIn, Facebook, other)
Responsive
SEO friendly and have ranking on first page on google searches
Stationary Design (Letterhead, powerpoint for every service with copywriting, etc)
ServiceProduct profile with copywriting to be use as download or send as attachment
Company Profile

The website needs to include a landing page which gives an overall view to all our services, and a page or more for every service to show details of the services. To include forms for submissions such as “Request a Demo” or “Contact Us”.

Need to provide sample of previous work in same domain