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Allen & Company LLC is a highly regarded, privately held American investment bank founded in 1922. The firm is known for its discreet advisory services, specializing in the media, entertainment, technology, and telecommunications industries. Allen & Company provides expert advice on mergers and acquisitions, corporate finance, and private wealth management. It is also famed for hosting the annual Sun Valley Conference, an exclusive, invitation-only gathering of global leaders and influencers from various sectors.
Serves as the central hub for Allen & Company's global investment banking operations, strategic decision-making, client advisory services, and houses its core executive leadership.
Situated in a prestigious building on Fifth Avenue, the headquarters offers a prime location. The offices are characterized by an understated elegance and a high degree of privacy, aligning with the firm's discreet operational style.
The work culture at Allen & Company's headquarters is demanding, intellectually stimulating, and client-focused. It emphasizes deep industry knowledge, analytical rigor, and the cultivation of long-term relationships, all within a traditionally private and results-oriented environment.
The New York headquarters is pivotal to Allen & Company's global operations and reputation, placing it at the epicenter of international finance and in close proximity to many of its key corporate clients.
While primarily operating from its New York headquarters, Allen & Company maintains a significant global reach through its London office and its extensive network of international clients and contacts. The firm advises on major cross-border transactions and its annual Sun Valley Conference further underscores its global influence by convening leaders from around the world.
711 Fifth Avenue
New York
NY
USA
Address: 12 St James's Square, London, SW1Y 4RB, UK
Provides investment banking advisory services, facilitates cross-border transactions, and maintains relationships with key European corporations, investors, and industry leaders.
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As of April 2025, Allen & Company' leadership includes:
Allen & Company has been backed by several prominent investors over the years, including:
Allen & Company is known for its operational discretion, and information regarding executive movements is not widely publicized. Based on publicly available information, there have been no prominent, widely reported new hires or departures at the senior executive level within the last 12 months.
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Allen & Company LLC primarily uses the allenxco.com domain for its email communications. A common email format pattern observed for the company is [first initial][last name]@[domain].
flast@allenxco.com
Format
jdoe@allenxco.com
Example
75%
Success rate
Reuters • April 3, 2023
Allen & Company acted as a key financial advisor to Endeavor Group Holdings in its significant transaction to merge its UFC mixed martial arts franchise with World Wrestling Entertainment (WWE). This merger resulted in the creation of a new publicly listed sports and entertainment giant, TKO Group Holdings....more
The Hollywood Reporter • July 14, 2023
The 2023 Allen & Company Sun Valley conference gathered top executives from media, finance, and technology. Key discussions revolved around the impact of artificial intelligence, potential media industry consolidation, and strategic directions for major corporations. The event continued its tradition as a crucial networking and agenda-setting forum for global business leaders....more
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