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January 24, 2026
Milbank Advises General Atlantic as Lead Investor on USD 500 Million Series E Funding Round of Insider

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AI-made summary
- Milbank LLP advised General Atlantic as the lead investor in a USD 500 million Series E funding round for Insider, an AI-native omnichannel experience and customer engagement platform
- Insider plans to use the funds to enhance its marketing software, invest in research and development, expand its AI solutions, grow its workforce, increase its global presence, and pursue strategic M&A opportunities
- The Milbank team involved lawyers from multiple international offices and practice areas.
Milbank LLP advised General Atlantic as lead investor on a USD 500 million series E funding round of Insider. Insider is a leading AI-native omnichannel experience and customer engagement platform. Its software enables marketers and customer experience teams to create highly personalized omnichannel experiences and manage customer engagement from a single platform. Insider helps marketers to efficiently collect, analyze, and predictively use first-party data in real time. The company has more than 1,100 team members across 28 countries worldwide. Insider plans to further develop its marketing software offering and invest in research and development, focusing on expanding and evolving its AI solutions. The company also intends to scale its talent base and geographic footprint, leveraging General Atlanticâs global platform, and to use funds to explore strategic M&A opportunities. General Atlantic is a leading global growth equity firm providing capital and strategic support for growth companies. General Atlantic combines a collaborative global approach, sector-specific expertise, a long-term investment horizon and a deep understanding of growth drivers to partner with businesses and management teams to scale innovative businesses around the world. The international Milbank team advising General Atlantic comprehensively on the transaction was led by partner Sebastian Heim (Corporate/M&A, Munich) and included partners Alexander Rinne (Regulatory, Munich), Andrea Hamilton (Regulatory, London), Matthias Schell (Tax, Munich), Jacqueline Chan (Corporate/M&A, Singapore), Nathaniel Browand (IP, New York) and Bijan Ganji (Global Risk & National Security, Washington DC), special counsel Sebastian Reiner-Pechtl (Corporate/M&A, Munich) and John Garces (IP, New York) as well as associates Sandra Feil, Lea-Marie Weischede, Manuel Bogenreuther, Lucas Stumpf, Marc Wiesner (all Corporate/M&A, Munich), Marlies Zeck (Regulatory, Munich), Wei Sheng Lee (Corporate/M&A, Singapore), Brian Murff (Global Risk & National Security, Washington DC), Abigail King (Corporate/M&A, New York) and Jil Windau (Tax, Munich).
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