Bengaluru, August 05, 2025: Ostara Advisors, an investment banking firm focused on climate technology and sustainable solutions, has announced the appointment of Arjun Sondhi as Senior Vice President. In this role, Sondhi will lead strategic initiatives in deal origination and execution, strengthen valuation and research capabilities, and support clients in securing capital to scale their operations.
With over 15 years of experience in capital markets, corporate finance, and investment research, Sondhi is expected to bring a multidimensional perspective to Ostara’s work in climate-tech investing. His expertise spans valuation, quantitative research, portfolio management, corporate turnaround, treasury, and investor relations.
Sondhi will contribute to building valuation models and assessing risk, enabling a deeper understanding of emerging climate technologies and more effective funding strategies. “I’m thrilled to join Ostara Advisors at a moment when climate tech is gaining momentum. I will be working closely with Climate-tech founders to help them unlock strategic capital, build financial resilience, and translate transformative ideas into sustainable, large-scale impact,” said Sondhi.
Before joining Ostara, Sondhi began his career in quantitative equity research at Lehman Brothers, expanding sell-side coverage to the Russell 3000 index. He has also worked at Bloomberg, where he was part of the founding team that developed real-time valuation and credit models, and at Mando Corporation, where he led treasury operations and financial strategy during a key recovery phase.
Commenting on the appointment, Vasudha Madhavan, Founder & CEO of Ostara Advisors, said, “Arjun’s extensive experience across capital markets and corporate transformation is a timely addition as climate tech investing moves from early-stage bets to large-scale, strategic growth. His perspective will deepen our ability to shape effective capital strategies and guide founders through complex scaling journeys. At Ostara, we’re dedicated to helping pioneering climate solutions secure the right funding—and Arjun’s leadership will help us do this with even greater focus and impact.”
Founded in 2015, Ostara Advisors is known for facilitating strategic financial solutions in climate-tech sectors such as electric mobility and decarbonisation. The firm has supported Indian startups in raising over $125 million in climate capital and advised on several notable transactions, including India’s first electric two-wheeler M&A deal—Greaves Cotton’s acquisition of Ampere Vehicles in 2018.
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