Northwood Knives are made by Great Eastern Cutlery in Titusville, Pennsylvania. In the past they worked with Queen to make some knives or parts for the Northwoods knives.
My favorite two resources to find the best deals on Northwood Knives is either KnivesShipFree or ebay.
Northwood Knives website is https://www.knivesshipfree.com/northwoods-knives/