Reltio Connect

As a SaaS product, our tenants are accessible anywhere in the world provided they have right authentication.  

I would like to know if I can restrict it based on specific IP range ? So that Reltio can be accessible only within Organisational network and not from public network 

Yes, Reltio supports IP whitelisting. You can create a support ticket and share your ip range to be whitelisted. Your tenants will only be accessible from those IP range. Make sure you share the public IPs, internal private IPs will not be recognized.