Here are the world's top earning media owners

Google’s dominance as the world’s largest media owner has increased, with the gap between it and its nearest competitor widening significantly over the past year.According to ZenithOptimedia’s new report Top Thirty Global Media Owners 2015, Google is now 136% bigger than the second-largest media owner (Disney), up from 115% a year earlier. It is also bigger than the second-largest and third-largest (Comcast) combined.The Top Thirty Global Media Owners report ranks the world’s largest media companies by media revenue, as estimated by ZenithOptimedia. The report was launched in 2007 and was last published by ZenithOptimedia in 2014. (ZenithOptimedia defines media revenue as all revenue deriving from businesses that support advertising, to determine which companies are most important for the marketing industry.*)While Google is the largest, the study has ranked Facebook as the fastest growing.Ranking of Top 30 Global Media Owners 2015RankMedia ownerRankMedia owner1Google16Asahi Shimbun Company2Walt Disney Company17Grupo Globo3Comcast18Yahoo!421st Century Fox19Fuji Media Holdings5CBS Corporation20CCTV6Bertelsmann21Microsoft7Viacom22Hearst Corporation8Time Warner23JC Decaux9News Corp24Yomiuri Shimbun Holdings10Facebook25Mediaset11Advance Publications26Axel Springer12iHeartMedia27ITV plc13Discovery28ProSiebenSat.114Baidu29NTV15Gannett30SanomaAccording to Zenith, Google has benefited from the rising sales of smartphones and tablets, making its central search function available to consumers on the move - especially useful for shoppers looking for price comparison - and allowed consumers to view content at times and places most convenient for them. This has created new opportunities to target them with display ads, another important component of Google’s business.But the main beneficiary of the transition to mobile has been Facebook, which is the fastest growing of our top 30 media owners. Facebook’s media revenues grew 63% over the past year. Facebook has actively embraced mobile technology in order to encourage its users to visit it regularly and frequently throughout the day, while designing its ads to blend seamlessly into the content feed. Facebook is the 10th-largest media owner in our ranking.The next-fastest growing company is Baidu – China’s equivalent of Google – which grew by 43% over the year. Baidu’s growth has been driven by the rapid development of China’s ad market, as well as improvements in search technology, and it is now the world’s 14th-largest media owner, ahead of digital rivals Yahoo! (18th) and Microsoft (21st).The third-fastest growing company is Grupo Globo, Brazil’s principal media owner, whose media revenues grew 15% year on year. Like Baidu, Globo has benefited from its presence in a fast-growing emerging ad market, but Brazil’s recent economic difficulties are likely to limit further growth in the short term.The only one other media owner in the top 30 that is based in an emerging market is CCTV: China’s national state television company. CCTV accounts for about a quarter of China’s television ad market - the third-largest in the world - and has more than tripled in size over the past decade. Chinese television is now facing stiff competition for ad budgets from online video and digital media in general, and CCTV too is likely to find it tough to increase its revenues from its core business.There are five purely digital media owners in the global top 30 – Google, Facebook, Baidu, Yahoo! and Microsoft. Between them they generated US$71billion in media revenue, which represents 68% of all global digital adspend, up from 67% in our previous report. Power in the digital advertising market is concentrated in the hands of a few large platforms, and is becoming even more concentrated, said the study.“The rapid growth of digital media and emerging ad markets has strengthened the position of media owners such as Google, Facebook, Baidu and Globo, at the expense of traditional media owners in developed markets,” said Jonathan Barnard, ZenithOptimedia’s head of forecasting.“The top digital media owners currently maintain a strong grip on the digital ad market, but they face the constant threat of displacement by disruptive innovators. While some emerging-market media owners face challenges in expanding their businesses in the short term, we expect to see more media owners from emerging markets enter the top 30 over the next few years," said Barnard.