Where can one purchase Cognos software?

Cognos software is now owned by IBM, so you would need to purchase it from them.

Here's how you can get Cognos software:

* IBM Website: Visit the official IBM website and search for "Cognos". You'll find information on their various offerings, including IBM Cognos Analytics, IBM Cognos TM1, and other related products.

* IBM Partner Network: IBM has a network of partners who can provide assistance with purchasing and implementing Cognos solutions. You can find a partner near you on the IBM website.

* IBM Sales Representatives: Contact IBM directly to discuss your specific needs and get a quote for Cognos software. You can find contact information on the IBM website.

Note: IBM has moved away from traditional licensing models and now offers Cognos software as a cloud-based subscription service. This allows you to access the latest features and updates without needing to manage your own infrastructure.

If you're considering Cognos, make sure to research the different options available and choose the solution that best meets your specific requirements.