Most businesses use IT within the company. This may be laptops, desktops, servers and printers etc, all of which will require some maintaining.
If your business does not have an in house IT department then you may need to consider taking out a contract with an IT support company to assist you with any IT problems or requirements you may have. If you find that you only require the support of an IT professional occasionally then it is probably not worth employing someone, instead why not outsource to an IT and Networking Company.
You can often chose to have a monthly contract with them where you get a certain amount of support or time or you can pay as and when you need them. Agreeing to a support contract can often work out cheaper if you are needing to call them in more than once a month.
If you need new email addresses setting up, back-ups created or adding new members of staff to your networking system then the IT Company will be able to assist you leaving you free to do what you need to within the business.
Backups are vital and without adequate back-up systems in place, companies have been known to not recover from data loss.