Rosslyn Data Technologies, (LON: RDT) has reported a trading update for the year-ending April 2021. It shows despite Covid handicaps a 4% increase in revenue to £7.4m, although an EBITDA loss of £250k, compared to a small profit (£36k) as spending on sales and marketing is increased. This cloud-based big-data analytics platform is still looking for the most profitable users and usages. It provides analytical services by combining four key technologies: bulk data extraction; cleansing; enrichment; and visualisation, all through a single cloud platform enablin...