Aegis Group
Aegis Group's Overview
Aegis Group plc was a prominent British-based global media and digital marketing communications company. Headquartered in London, it operated in over 80 countries, providing services such as media planning and buying, digital creative and performance marketing, market research, and content creation. Its key operating brands included Carat, Vizeum, Isobar, iProspect, and Posterscope. In July 2012, Aegis Group agreed to be acquired by the Japanese advertising firm Dentsu Inc. for approximately £3.16 billion ($4.9 billion). The acquisition was completed in March 2013, leading to the formation of Dentsu Aegis Network, which has since been fully integrated and rebranded as Dentsu. Aegis Group's legacy continues within Dentsu's global operations, particularly in its media and digital capabilities.
Where is Aegis Group's Headquarters?
HQ Function
Served as the global corporate headquarters, overseeing strategic direction, financial management, and coordination of its worldwide network of media and digital marketing agencies.
Notable Features:
Located in Regent's Place, a modern, well-connected business and mixed-use development in central London, known for contemporary architecture and sustainability features.
Work Culture:
As a leading global media group, the HQ fostered a dynamic, innovative, and fast-paced environment, focused on client service, media strategy, and digital transformation. Collaboration across its diverse agency brands was key.
HQ Significance:
The London HQ was the nerve center for Aegis's global expansion and operations, cementing its position as a major player in the international advertising and marketing landscape before its integration into Dentsu.
Values Reflected in HQ: The modern, centrally located, and well-equipped headquarters reflected Aegis's values of innovation, global connectivity, and leadership in the evolving media landscape.
Location:
Before its acquisition by Dentsu in 2013, Aegis Group plc maintained a significant global presence, operating in over 80 countries across the Americas, EMEA (Europe, Middle East & Africa), and Asia-Pacific. This extensive network allowed Aegis to support multinational clients with consistent and locally relevant media planning and buying, digital marketing (including search, display, social, and mobile), content creation, market research, and out-of-home advertising. Functions supported globally included strategic media counsel, integrated communication planning, digital performance, creative services, and data analytics, all tailored to diverse international markets.
Street Address:
10 Triton Street, Regent's Place
City:
London
State/Province:
England
Country:
United Kingdom
Aegis Group's Global Presence
New York City, USA
Address: Various locations, typically in Midtown Manhattan (e.g., offices for Carat, Isobar). For instance, a historical address for Aegis Media Americas was 150 East 42nd Street, New York, NY 10017.
Spearheaded Aegis's presence and growth in the largest advertising market in the world, tailoring global strategies for American consumers and businesses.
Paris, France
Address: Multiple locations for its various agency brands within central Paris business districts.
Managed operations in France, one of Europe's largest economies, and contributed to the broader EMEA (Europe, Middle East, Africa) strategy and service delivery.
Shanghai, China
Address: Located in prominent business districts in Shanghai, housing various Aegis agency operations.
Drove growth and innovation in China and the wider APAC region, adapting Aegis's global offerings to local market needs and consumer behaviors.
Sydney, Australia
Address: Offices typically located in Sydney's central business district or media hubs.
Led Aegis's business in Australia and New Zealand, focusing on media investment management and digital transformation for clients in the region.
Buying Intent Signals for Aegis Group
Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.
Executive Team of Aegis Group
As of April 2025, Aegis Group' leadership includes:
Investors of Aegis Group
Aegis Group has been backed by several prominent investors over the years, including:
Executive New Hires/Exits in the Last 12 Months
As Aegis Group plc was acquired in 2013, specific 'last 12 months' executive news for the standalone Aegis entity is not applicable. Recent executive movements relate to Dentsu, its successor. For instance, Dentsu has seen leadership changes as it continues to integrate and streamline its global operations. Key Aegis leadership, like Jerry Buhlmann, transitioned to Dentsu Aegis Network post-acquisition.
Departures
New Appointments:
Technology (Tech Stack) used by Aegis Group
Discover the tools Aegis Group uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
Aegis Group Email Formats and Examples
Prior to its acquisition by Dentsu, Aegis Group plc and its subsidiary agencies (like Carat, Isobar) used standardized corporate email formats. Common patterns included [first].[last]@[companydomain].com or [first_initial][last]@[companydomain].com. The specific domain would vary (e.g., @aegisplc.com, @aegismedia.com, @carat.com). These formats are now historical for Aegis Group itself.
[first].[last]@aegisplc.com or [first_initial][last]@aegisplc.com (historical example for parent company)
Format
jane.doe@aegisplc.com (historical example)
Example
0 (Aegis Group plc domains are no longer active; current emails would use dentsu.com or subsidiary domains within Dentsu)%
Success rate
News and media
Reuters • July 12, 2012
Dentsu agrees $5 billion takeover of Aegis
Japan's Dentsu Inc agreed to buy British media buying firm Aegis Group Plc for 3.16 billion pounds ($4.9 billion) to dramatically reduce its reliance on a shrinking domestic market and become a global player in digital advertising....more
Campaign UK • March 26, 2013
Dentsu completes Aegis acquisition
Dentsu has completed its £3.16 billion acquisition of Aegis Group. The combined entity will be called Dentsu Aegis Network and will be headquartered in London, with Jerry Buhlmann, the former chief executive of Aegis, leading the new global group....more
The Guardian • February 21, 2012
Aegis buys US digital agency Roundarch
Aegis Group continued its expansion in the digital sector with the acquisition of Roundarch, a US-based digital agency specializing in design and implementation of large-scale digital experiences, which was integrated into its Isobar network....more
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