Trionic Tees We, at Sona & Jacob are a team of designers and writers with over 25 years of industry experience. Our work experience includes individual career pursuance at advertising agencies like J Walter Thompson, Grey Worldwide, Madison and Ogilvy & Mather in India, besides web and multimedia expertise gained at one of the leading web and multimedia houses in the country. Over the past two years, we have been lending our expertise to leading greeting card manufacturers, publishing houses, advertising agencies and clients.