Karishma Rajaratnam

Director, Growth Marketing at Vidyard

Karishma Rajaratnam has extensive experience in growth marketing and product-led growth. Karishma currently works at Vidyard as the Director of Growth, where they are responsible for building and leading the autonomous Growth organization. Karishma previously held roles as the Director of Growth Marketing and Senior Manager of Growth Marketing at Vidyard. Karishma has also worked at other companies such as Techstars, ProductLed, ChartMogul, and Chargebee. In their roles at Chargebee, they were responsible for building and growing the Freemium business model and leading the self-serve startup market. Prior to that, they founded and managed their own freelance SEM/PPC consultancy called Strattr. Karishma has also worked as a research and content contributor at CogLode and as a behavioral science research consultant. Karishma has a background in research and holds experience from their time as a research associate at Harvard University. Overall, Karishma has a strong background in growth marketing, product-led growth, and behavioral science.

Karishma Rajaratnam completed their Master of Science (MSc) in Social Cognition from UCL in 2012-2013. Karishma also obtained additional certifications, including Bing Ads Certification from Yahoo-Bing Ad Network and Google AdWords Certification from Google in 2015. In 2013, they completed the course "BE101x: Behavioural Economics in Action" from eDX: University of TorontoX. In 2009, they completed a one-year course in Human Relations from Women's Christian College, Chennai.


Previous companies

Chargebee logo
Harvard University logo
ChartMogul logo


  • Director, Growth Marketing

    Current role