Siddhartha Singh Promoted to CEO & Managing Partner at Infectious Advertising

Nisha Singhania, Co-Founder and Managing Partner, who has also served as CEO, will focus on strategic initiatives and driving the agency’s next phase of growth

e4m by e4m Staff
Published: Apr 28, 2026 12:20 PM  | 1 min read
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Infectious Advertising names Siddhartha Singh CEO and Managing Partner
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  • Siddhartha Singh has been promoted from Chief Operating Officer to Chief Executive Officer and Managing Partner at Infectious Advertising.
  • Nisha Singhania, Co-Founder and Managing Partner, will now concentrate on long-term strategy and the agency's growth after previously serving as CEO.
  • Siddhartha has contributed significantly to the agency's operations, culture, and client relationships, and will focus on integrating strategy and creativity in his new role.
  • Both Nisha Singhania and Ramanuj Shastry expressed confidence in Siddhartha's understanding of the agency's vision and values, while he emphasized the agency's commitment to meaningful work and growth opportunities.

Infectious Advertising has promoted Siddhartha Singh from Chief Operating Officer to Chief Executive Officer and Managing Partner.

With this change, Nisha Singhania, Co-Founder and Managing Partner, who earlier also served as CEO, will now focus on long-term strategy and guiding the agency’s next phase of growth.

Siddhartha has been an important part of the agency’s journey, helping build strong operations and shaping a culture that balances strategic thinking with creative work. He has also played a key role in strengthening client relationships and supporting consistent growth.

In his new position, he will work closely with the founders to take the agency forward, with a focus on better integration of strategy and creativity, building long-term client partnerships, and investing in talent and culture.

Commenting on the promotion, Nisha Singhania and Ramanuj Shastry said that Siddhartha deeply understands the vision and values of the agency, and his elevation reflects the confidence he has earned over time.

Sharing his thoughts, Siddhartha said that the agency has always focused on creating meaningful work, and he is grateful for the trust placed in him. He added that he is excited to lead the company at a time when there are strong opportunities to make a bigger impact.

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Published On: Apr 28, 2026 12:20 PM 
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