There are two way of getting an Insitucloud account:
1) Create a New Account at https://portal.insituware.com
If you are the first person in your company to use Insituware's products, you can create a new account at https://portal.insituware.com.
2) Get an Invite to your Company's Organization
If your company already has an organization setup, the organization owner can you an invite to your email. If they aren't familiar with this process, send them this article on managing organizations.