Abtus are an engineering company that were established in 1895. Today they have three distinct business interests railway engineering, military/marine engineering and marine electronics. Their historic associations and trading names include "ELECO" (ENGINEERING & LIGHTING EQUIPMENT COMPANY), "DAVIS ENGINEERING", "TERGOR ELECTRONICS", "ALAN HAIGH" & "WESTAIR DEFENCE" (MILITARY DIVISION). They are based in Haverhill.