Security Canada regrets that it is not able to send out letters of invitation for potential visitors from overseas in order to help them secure visas. If your business is relevant to Security Canada you will be able to prove this at the embassy or consulate in your country by providing proof of your employment and the nature of your employer’s business.
Please do not contact Security Canada, regrettably all requests for letters of invitation will be denied due to corporate policy. More information on visa applications for entry into Canada can be found on the Government of Canada website: http://www.cic.gc.ca/english/visit
SECURITY CANADA OTTAWA