The merger of Era and Ogilvy's Taipei offices will create the largest PR firm in Taiwan, with more than 100 people.
Era is a technology specialist PR firm and includes Hewlett-Packard and Dell among its clients. Ogilvy will hold a 70% stake in the newly enlarged agency.
Last month, Ogilvy PR took a 60% stake in the Chinese PR firm H-Line, to create the largest PR agency in China.
Matthew Anderson, president of Ogilvy PR Asia Pacific, said: "We are committed to strengthening specialist PR in Taiwan and linking Taiwan in constructive ways with other parts of China and the world."
He added: "We have built our network in Asia first by attracting top, locally rooted talent and second by fostering a culture that encourages collaboration and strong international links."
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