The Department of Homeland Security, specifically the Cybersecurity and Infrastructure Security Agency (CISA), is seeking to procure Brand Name Justification for SLACK Enterprise Grid Licenses. CISA requires the continued use of existing Slack Enterprise Grid Software licenses, necessitating an initial purchase of 3,000 licenses with options to increase by an additional 2,000 licenses, along with access to technical support and resources for a 12-month period. This procurement is critical for CISA's mission to protect the nation’s critical infrastructure from cyber threats and to enhance collaboration among government and private sector organizations. Interested vendors can contact Shireen Belanger at shireen.belanger@cisa.dhs.gov for further information, noting that this requirement was competed among small business vendors on DHS' First Source II contracts.