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| Kiersten Zweibaum |
Omnicom Public Relations Group shifts Kiersten Zweibaum to global chief growth and marketing officer. Most recently, she served as managing director, partner, global growth at Ketchum (part of OPRG), overseeing business development, including a number of cross-Omnicom agency new business and organic growth engagements. In her new post, Zweibaum will be responsible for expanding relationships between OPRG agencies and existing clients, identifying and securing new clients, and enhancing the brand externally to attract both talent and clients. She will report to OPRG chief executive officer Chris Foster. “Our agencies will benefit greatly from her diverse experience and dynamic leadership in pursuit of growth,” said Foster.
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| Jacqueline Woods |
Teradata brings on Jacqueline Woods as chief marketing officer, effective Dec. 6. Woods succeeds Martyn Etherington, who is stepping down from his position and will remain with Teradata through the end of December. Woods joins Teradata from NielsenIQ, where she served as global chief marketing and communications officer. She was previously chief marketing officer for IBM’s Partner Ecosystem, where she focused on building cloud, Data, AI and SaaS strategies. At Teradata, Woods will be responsible for overseeing the company’s strategic marketing planning and delivery, including brand and reputation management, digital and social properties, as well as leading customer generation, influencer marketing, public relations, communications and enriching customer experiences. “She is an accomplished and influential leader known for her creative excellence and collaboration across the value chain,” said Teradata president and CEO Steve McMillan.
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| Jonathan McCallum |
Experience marketing agency George P. Johnson promotes Jonathan McCallum to managing director of its London office. McCallum joined GPJ in 2016, previously serving as vice president and UK chief strategy officer. Before that, he was head of sport marketing at Ogilvy & Mather Group UK. In his new post, McCallum will report directly to CPJ chief executive officer Chris Meyer. “Bringing Jonny McCallum into the managing director role from strategy underpins the importance of being client-centric and evolving our thinking to best serve our clients,” said Meyer.




Jamie Dowd, who was most recently president of the health practice in the Americas at Weber Shandwick, comes on board at Allison Worldwide as global president, health + wellness, effective June 22.
Kieran Mahoney, who founded Mercury Public Affairs more than 27 years ago, has stepped down as CEO and assumed the executive chairman post.
FGS Global brings on Harry Florry as head of Singapore and Andrew Yeo as global policy partner Asia... ACORE CAPITAL, a commercial real estate debt investment manager, appoints Cynthia Holahan as CMO, a newly created role at the company... NVE Experience Agency, a global brand experience firm, hires Justin Biskin as SVP in its sports marketing practice. Biskin joins NVE from Nike.
Ipsos, a market research and polling company, appoints Marion Beyret as chief communications officer... TENEX.ai, an AI‑native, human‑led SOC (security operations center) appoints Richard Rogers as CMO... Arizona Athletics hires Carter Toole as chief communications officer and senior associate athletics director.
Andreessen Horowitz has named Anne Neuberger partner and head of global affairs at the venture capital giant.



