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U.S. Department of Homeland Security
What Does U.S. Department of Homeland Security Do?
The U.S. Department of Homeland Security (DHS) is a cabinet department of the U.S. federal government with the primary mission of securing the nation from the many threats it faces. This includes counterterrorism, border security, immigration enforcement, cybersecurity, disaster preparedness and response, and protection of national leaders. Established in response to the September 11 attacks, DHS consolidates 22 federal agencies, including FEMA, TSA, U.S. Coast Guard, U.S. Customs and Border Protection, U.S. Immigration and Customs Enforcement, and the U.S. Secret Service. It works to prevent terrorism, secure and manage U.S. borders, enforce and administer immigration laws, safeguard and secure cyberspace, and ensure resilience to disasters.
Where Is U.S. Department of Homeland Security's Headquarters?
HQ Function
Serves as the central command and consolidated headquarters for the Department's leadership and various component agencies, facilitating inter-agency coordination, policy development, and operational oversight for national security.
Notable Features:
The St. Elizabeths Campus is a historic site, formerly a psychiatric hospital, undergoing extensive renovation to become a state-of-the-art, secure campus. It features a mix of restored historic buildings and new, environmentally sustainable constructions, designed to consolidate DHS operations from dozens of locations across the National Capital Region.
Work Culture:
As a major federal agency, the work culture at DHS headquarters is mission-driven, emphasizing national security, public service, and inter-agency collaboration. Employees often work in a structured environment focused on policy, operations, and support functions critical to the department's diverse missions. There's a strong sense of purpose and dedication among the workforce.
HQ Significance:
The St. Elizabeths Campus is significant as it represents one of the largest federal construction projects, aiming to unify DHS leadership and improve operational efficiency, communication, and collaboration across its numerous components, thereby strengthening national security.
Values Reflected in HQ: The adaptive reuse of a historic landmark reflects a commitment to preservation and sustainability, while the consolidation effort embodies unity, efficiency, and enhanced collaboration – key values for a department tasked with protecting the homeland.
Location:
While primarily focused on domestic security, DHS has a significant global presence to protect U.S. interests and borders. This includes stationing personnel from components like CBP, ICE, and the Coast Guard in numerous countries to work with international partners on issues such as counterterrorism, customs enforcement, immigration, transportation security, and law enforcement cooperation. DHS also engages in capacity building, information sharing, and joint operations with foreign governments and international organizations to address transnational threats.
Street Address:
2707 Martin Luther King Jr Ave SE
City:
Washington
State/Province:
D.C.
Country:
United States
Where Else Does U.S. Department of Homeland Security Operate Around the World?
Washington, D.C., USA
Address: 500 C Street SW, Washington, D.C. 20472
National-level coordination and policy direction for emergency management across all U.S. states and territories.
Washington, D.C., USA
Address: 1300 Pennsylvania Ave NW, Washington, D.C. 20229
National oversight of border security operations, trade enforcement, and customs activities at all ports of entry and along U.S. borders.
Springfield, Virginia, USA
Address: 6595 Springfield Center Drive, Springfield, VA 22150
National-level policy, operations, and technology deployment for transportation security across the United States.
Washington, D.C., USA
Address: 2703 Martin Luther King Jr Ave SE, Washington, D.C. 20593
National and international command for all Coast Guard operations, including search and rescue, law enforcement, and defense readiness.
Buying Intent Signals for U.S. Department of Homeland Security
Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.
Who's Leading U.S. Department of Homeland Security? Meet the Executive Team
As of April 2025, U.S. Department of Homeland Security' leadership includes:
Who's Investing in U.S. Department of Homeland Security?
U.S. Department of Homeland Security has been backed by several prominent investors over the years, including:
What Leadership Changes Has U.S. Department of Homeland Security Seen Recently?
The U.S. Department of Homeland Security has seen key leadership transitions over the past year, particularly at the Deputy Secretary and component agency leadership levels, reflecting ongoing adjustments to strengthen its diverse mission areas.
Departures
New Appointments:
What Technology (Tech Stack) Is Used byU.S. Department of Homeland Security?
Discover the tools U.S. Department of Homeland Security uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
U.S. Department of Homeland Security Email Formats and Examples
The U.S. Department of Homeland Security, like many U.S. federal government agencies, primarily uses email formats that combine an employee's first name and last name with the agency's domain. Common structures include 'firstname.lastname@dhs.gov' or 'firstname.lastname@hq.dhs.gov'. Component agencies may have their own subdomains, such as 'firstname.lastname@cisa.dhs.gov' for CISA or 'firstname.lastname@fema.dhs.gov' for FEMA.
firstname.lastname@dhs.gov
Format
jane.doe@dhs.gov
Example
90%
Success rate
What's the Latest News About U.S. Department of Homeland Security?
dhs.gov • May 22, 2024
U.S. Department of Homeland Security FACT SHEET: DHS Cracks Down on Illicit Trade and Level the Playing Field for American Businesses
DHS announced robust new enforcement actions to combat illicit trade, specifically targeting the textile industry and customs violations. These efforts aim to protect American businesses from unfair competition and ensure compliance with trade laws, including the Uyghur Forced Labor Prevention Act....more
dhs.gov • May 21, 2024
U.S. Department of Homeland Security Secretary Mayorkas Delivers Keynote Address at BlueLEOs National Law Enforcement Appreciation Luncheon
Secretary Alejandro N. Mayorkas delivered a keynote address recognizing the dedication and sacrifice of law enforcement officers nationwide during the BlueLEOs National Law Enforcement Appreciation Luncheon, emphasizing DHS's commitment to supporting them....more
dhs.gov • May 16, 2024
U.S. Department of Homeland Security Announces Extension and Redesignation of Ethiopia for Temporary Protected Status
DHS announced the extension and redesignation of Ethiopia for Temporary Protected Status (TPS) for 18 months, allowing eligible Ethiopian nationals currently residing in the U.S. to apply or re-register for TPS....more
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