ITI already represents Apple, Google, Microsoft, Oracle and other major technology companies.
Garfield argued that unlike the numerous other technology-focused lobbying groups in Washington, the ITI has a broad agenda and addresses international issues.
"We do our work on a global basis, which none of the other entities do," Garfield said.
Facebook has been an established force in Washington for several years, but Samsung so far only has a limited presence, despite being one of the world's largest companies. The South Korea-based device maker spent only $30,000 lobbying Washington policymakers in the most recent quarter, according to disclosure forms.