TechTime Initiative Group, an Atlassian Partner has been providing a solution to do NTLM authentication (a.k.a auto-login or SSO in Windows environment) in Confluence and Jira for over 2 years. We have customers successfully using this solution in New Zealand, Switzerland, Finland, Germany and USA both in NTLMv1 and NTLMv2 environments.
The NTLM Authenticator is delivered as a jar file and instructions how to deploy it to Atlassian Jira and/or Confluence to work in conjunction with IOPlex Jespa to perform NLTM authentication in Windows environment.
The cost is one-off NZ$150 (plus fees for Jespa license payable to IOPlex).
If you need it, talk to us, the email address is at the top of this website.