Free business asset appraisal and inventory liquidation in Philadelphia. At Markwell and Co. an inventory consultant will help your business liquidate excess business assets. From the moment you meet one of our inventory consultant team members, you will feel safe and secure with Markwell & Co. Markwell & Co. is so confident in our ability to plan a solution to maximize your business assets outcome and net return that we will send out one of our inventory consultants to meet with you, value your businesses assets, and give you feedback with your options that we will send them out absolutely free of charge.