Annie Longsworth is a Partner at ERM Shelton where she leads the communication, brand, and marketing strategy for the value creation team. In her role, Annie works with ERM’s GP clients and their portfolio companies as they leverage sustainability to drive sales & brand preference, attract & retain talent, and optimally position throughout the hold period and in the run-up to exit. In addition, Annie delivers sustainability communication strategies to corporate clients looking for opportunities to leverage sustainability for leadership. A pioneer in sustainability communications, Annie has helped shape the value of integrating communications into corporate sustainability strategy over the past 20+ years. Prior to joining ERM Shelton in April 2024, she founded the award-winning Siren Agency after three years as CEO of Saatchi & Saatchi S. Earlier in her career, Annie spent nine years as President of Cohn & Wolfe, San Francisco, where she launched and led the global sustainability practice. She has contributed to sustainability strategies with clients across many sectors, including financial services, energy, hospitality, and B2B through reporting, campaign development, employee engagement, and earned media. Annie is a lifetime member of the Sustainable Brands Advisory Board and was recognized by SustainabilityX Magazine as a Global 50 Women in Sustainability in 2024.