Business Introduction letter.

Hi,

I am in the process of writing a business introduction letter and was wondering if someone can help me critic my letter and take a look at it.
Here it is
Hi Mr. John,

I am XYZ, Account Manger at Company Name writing to you introducing Company Name in Los Angeles area. Getting the word out about your business is what we specialize in.
Welcome to Company Name, we specialize in helping businesses discover and implement new strategies for effective social media marketing.
Our broad experience in social media has been helping companies to extend their business to their right target audience. We achieve this by having a clear communication with their customers via social media.
At company name we realize that managing your social media is time consuming, costly and confusing at times and hence we would like to take some time to analyze what you do and create awareness amongst your community getting the right customers at your door step.
With all these advanced techniques, like Social Media Marketing andSearch Engine Optimization are you doing enough to market your business? Let Company Name be your trusted guide and partner in your growth, helping you find power to attract new customers and expose your expertise to the society.
Please contact me on my toll free number 855xxxxxxx for a free consultation.