Portobello, a mid-market private equity firm, completed the acquisition of a minority stake in Plexus Tech, an IT company that provides consulting, web development, and IT-related services. Financial terms were not disclosed. “Plexus Tech meets all the characteristics we look for in our investments. Its great growth trajectory and positioning in quality services, within a field as in-demand as digital transformation, make it a great addition to our portfolio," Carlos Dolz de Espejo, Portobello Partner.