Willcro
My guess is that LT Engineering Software was renamed to Apastron, which used to be here, but has since moved. https://www.minnpost.com/ypn/2011/06/panel-discussion-mining-mega-mobile-opportunities-630-pm-wednesday-june-22/ mentions the founder of LT Engineering, which is the same name as the current listed founder of Apastron on linkedin https://www.linkedin.com/company/apastron-llc. Their website now lists a different address than this one (https://apastron.co/) and the address on their LinkedIn, which was here, is now occupied by Smart Labs.