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Justin Rosner is a Partner at Battery Ventures based in Boston, Massachusetts. Before joining the global technology-focused investment firm in 2014, he began his financial career working in investment banking at Morgan Stanley and earned an undergraduate economics degree from Dartmouth College. In his current role, he focuses on growth-stage and later-stage investments across the industrial technology, life-science tools, and application software sectors. He typically deploys check sizes ranging from $250,000 to $60 million to support scaling enterprises within a broader firm portfolio that includes over 450 companies. Throughout his eleven-year tenure at the firm, he has worked closely with specific portfolio investments such as Process Sensing Technologies and SPT Labtech. Following his promotion to Partner in July 2025, Rosner maintains his core focus on directing capital toward established industrial technology and infrastructure software businesses.
Justin Rosner is a distinguished Principal at Battery Ventures, a globally recognized technology investment firm renowned for its strategic insights and successful portfolio. As a key member of the investment team, Justin plays a pivotal role in sourcing, evaluating, and executing investments in high-growth technology companies. His expertise lies in identifying disruptive trends and promising startups that are poised to redefine their respective markets.
At Battery Ventures, Justin Rosner's investment focus areas are primarily centered on enterprise software, cloud infrastructure, and cybersecurity. He is deeply committed to understanding the evolving landscape of business technology, seeking out companies that offer innovative solutions to complex challenges faced by modern enterprises. Within enterprise software, he looks for platforms that enhance efficiency, streamline operations, and drive digital transformation. In cloud infrastructure, Justin targets technologies that underpin the future of computing, including advanced data management, serverless architectures, and developer tools. His interest in cybersecurity stems from the critical need for robust protection in an increasingly connected world, backing companies that provide cutting-edge defenses against cyber threats.
Justin's role extends beyond just capital allocation; he actively collaborates with portfolio company founders and management teams. He provides strategic guidance, leverages Battery Ventures' extensive network, and offers operational support to help these companies navigate growth, scale their operations, and achieve market leadership. His approach is characterized by a deep partnership, aiming to build enduring value alongside visionary entrepreneurs.
Prior to his tenure at Battery Ventures, Justin Rosner cultivated a strong background in technology and finance, equipping him with a comprehensive understanding of market dynamics and investment strategies. This foundation allows him to conduct thorough due diligence and identify companies with strong fundamentals and significant growth potential. While specific notable investments are part of Battery Ventures' broader portfolio success, Justin's contributions are integral to identifying the next generation of technology leaders within his specialized domains.
Justin Rosner's commitment to fostering innovation and supporting transformative technology companies makes him a valuable asset to Battery Ventures and the broader venture capital ecosystem. His dedication to working with founders who are building the future of enterprise technology underscores his impact in the industry.
Justin Rosner is a Principal at Battery Ventures, a leading global technology investment firm. He specializes in identifying and investing in innovative companies within the enterprise software, cloud infrastructure, and cybersecurity sectors.
Justin Rosner primarily invests in companies developing cutting-edge solutions in enterprise software, cloud infrastructure, and cybersecurity. He focuses on businesses from early to growth stages that demonstrate strong market potential and disruptive technology.
Justin Rosner works as a Principal at Battery Ventures. Battery Ventures is a global technology-focused investment firm with offices in various locations, including Boston, San Francisco, and New York.
