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The only British firm to make the list , Micro Focus International is a constituent of the FTSE 250 index . As both a consultant and a software company , Micro Focus specialises in helping customers to achieve a digital transformation . It highlights four particular areas of speciality , namely DevOps , IT management , security and analytics , while customers include the likes of Fiserv , Accenture and BMW . Subsidiaries include the US-based Serena Software and Houston , Texas ’ s NetIQ . www . technologymagazine . com