How do I land large corporate lawn maintenance accounts being a smaller landscape company?

I own a small lawn and landscape company. I would like to get into commercial maintenance. I would like to know how I being a small company can start expanding my business and start bidding larger accounts for landscaping and lawncare as well as snow plowing and removal|||You'll have to start reading the newspaper for ads requesting bids. Also you might want to do the old fashioned pavement pounding by going to companies and setting up appts to hand out cards and quotes in case they are ready for a new company or unhappy with their old one.|||I co own a large Landscaping Company and we do anything that has to do with the landscape design and so on at one time we were really small and grew as you will heres my advice to you if you grow too fast that can do more harm then good but to get what you what you may have to under bid others until you get set up a lot of our clients we dont even bid we are just given them because we have a repetition also try to work with builders and that may help get your name out good luck i hope this has helped some