Plexus Holdings plc a United Kingdom-based company. The Company markets a patented method of engineering for oil and gas field wellheads and connectors, named POS-GRIP which involves deforming one tubular member against another within the elastic range to effect gripping and sealing. The Company derives revenue from the sale of its POS-GRIP technology and associated products, the rental of wellheads utilizing the POS-GRIP technology. For the oil and gas market POS-GRIP has been developed to employ a method of elastically deflecting an outer wellhead body onto an inner casing hanger or tubing hanger, locking them in place to support tubular weight, and activate seals. The Company has interests in a private company which holds a 25% interest in a private United Kingdom engineering company, which is a manufacturer of specialist oil and gas equipment.