Hire an intern to go locate all of the company assets, tag them (after verifying serial numbers and if they are part of another machine or more). Draw a company grid showing where each is located. Distribute copies of this throughout maintenance, purchasing and accounting with a copy to the insurance broker.
Fixed asset tags: Inventory all company assets and tag each item. Create plant grid layout in order to locate each item (i.e. Building A: aisle #1, machine location 3, aisle #4, machine location 11).