We solve problems, communicate strategically, enhance reputations, create events, manage crises and build relationships that endure.
SDI is a woman-owned small business. We are a full-service international public affairs and strategic communications agency. Clients stay with us, return to us and recommend us because we earn their respect and trust.
Susan Davis Inducted into Hall of Fame
Susan Ann Davis, Chairman of SDI, was recently inducted into the Communications Hall of Fame of Ragan Communications’ Top Women in Communications Awards.
Susan is a pioneering woman business owner and internationally known for her expertise in strategic positioning, government relations, and crisis communications. She has personally represented more than a dozen countries on issues ranging from economic crisis to nation building and trade expansion. During the past four decades, she has grown SDI into a global public affairs and strategic communications powerhouse that provides counsel worldwide to heads of governments, NGOs, and industry.
Our Client Work
Who We Are

Susan A. Davis
Chairman

Judith H. Whittlesey
Executive Vice President

Tom E. Davis
Vice President

Sean O’Leary
Vice President
What We’re Saying
SDI Spotlight: Patty Templeton
Patty Templeton joined Susan Davis International (SDI) as an intern in May 2022. She is a senior at Temple University majoring in Sport and Recreation Management with a concentration in Event Leadership. Focusing on more of the event side of her studies, Patty enters...
Susan Davis International Launches 2023 Military Events Calendar
Susan Davis International (SDI) today announced the launch of its comprehensive, interactive calendar of military events and observances for 2023.
SDI Spotlight: Caitlin Heelen
Caitlin Heelen joined Susan Davis International (SDI) as an intern in June 2022. A senior at American University, she is majoring in Communications, Legal Institutions, Economics, and Government and minoring in Finance and French. She is the Vice President of...
Our NAICS Codes
NAICS Code | Category |
541613 | Marketing consulting services |
541810ODC | Other direct costs for marketing and public relations services |
541820 | Public relations services |
541910 | Marketing research and analysis |
561920 | Conference, meeting, event and trade show planning services |