Office365 Plans:
A. For Small Business:

Click here to get a FREE Trial for 10 user licenses Microsoft Office365 Plan P1.
B. For Enterprise :

Click here to get a FREE Trial for 25 user licenses Microsoft Office365 Plan E3.
* Small Business Plan ( Plan P ) Vs. Enterprise Plans ( Plan E)
In plan P , the maximum number of users available are 50. Once you touch 50, you do not have a choice of migrating to plan E1. In your case , the Company users are more than 100 . So if you decide to move these over next 1 year, you will face a roadblock.
As an admin , there is a single admin role in plan P. In Plan E , there are 4 admin roles meaning that once users increase, you can designate multiple users in your Company with multiple admin roles if you wish.
Only forum based support is available in Plan P while in plan E, you also have telephonic support.
Certain advanced email rules are not available in Plan P like
a) preventing some users from sending attachments outside
b) preventing some users from sending emails to outside users
c) ensuring that a copy of all incoming and outgoing emails to an archive account.
Having a mix of users like only Exchange @ USD 5 , Exchange Kiosk @ USD 2 , Plan E1 @ USD 10 , etc . The Plan P is fixed at USD 6 per user.
Plan P has a monthly cycle. So you can discontinue at the end of the month. Plan E has a annual commitment. So you can discontinue at the end of the 12 month period.
In Plan P , you get Blackberry Internet Services ( BIS) . In Plan E , you will get Blackberry Enterprise Services ( BES). For more details on BIS and BES , refer to http://techgyan.com/BES_Express.aspx
Useful Links:
To know more about how our Services can work for you, call us at 91- 022-24134530/39 . We suggest you submit your inquiry using the inquiry form which will appear once you click on Submit button.
