The provided URLs and LinkedIn link for Nexus Data at http://www.nexusdata.co.za and http://www.linkedin.com/company/nexus-data-linkedin do not yield specific information about this company. However, based on similar companies, Nexus Data could offer data analytics and consulting services. Typically, such companies provide strategic data solutions, leveraging technology and industry expertise to drive business outcomes. Their target audience might include fintech, retail, and manufacturing sectors. The unique selling proposition could be delivering measurable value through tailored data insights and strategic consulting. Without direct access to the specific company's details, this is a generalized interpretation.