You also need to make sure that each courier company can meet the specific needs of your package. You will need to determine if refrigeration, dangerous goods, or special handling are required. You need to make sure that the courier you choose is qualified to carry your package. You can choose the best same day deliveries services via http://www.zendfast.com/
It is important that you do your research when choosing a courier company. Word of mouth is always best. Some companies may promise the lowest prices, but they don't always offer the best service. If your plan is worth a lot, it's best to choose a more expensive option with a higher guarantee.
One of the factors that will help you decide is how long they have been up and running. Companies that have been around for a long time have systems that work well, while new companies may not know the best routes and shipping methods.
Find out what kind of customer service the company offers. Is there a way to track your parcel once it gets out of your hands? Is there a way for you or the host company to contact the courier company if the package doesn't arrive?
Do you have online services? Can you arrange for online collection and track your package online? A website that allows you to calculate service offerings is a handy tool.