> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/companies-in/united-states/government-administration/ # Government agencies in the United States Larger government agencies headquartered in the United States: who they are, what they run and how to reach their people. By Enrich.chat Editorial. Updated October 21, 2026. **Short answer:** Larger government agencies headquartered in the United States include Air Force Civilian Service, ESS, HHS.gov, Teach For America and Transportation Security Administration (TSA). Below are the tools that stand out, where they are based and how big they are. ## Which government agencies are headquartered in the United States? They include Air Force Civilian Service, ESS, HHS.gov, Teach For America and Transportation Security Administration (TSA). The table lists a selection in alphabetical order; names link to company profiles. | Company | Size | Tools detected | | --- | --- | --- | | [Air Force Civilian Service](https://enrich.chat/company/air-force-civilian-service/) | 100,000+ | 16 | | [Broward County Public Schools](https://enrich.chat/company/broward-county-public-schools/) | 25,000 to 50,000 | 35 | | [City of Houston](https://enrich.chat/company/city-of-houston/) | 10,000 to 25,000 | 34 | | [City of Philadelphia](https://enrich.chat/company/city-of-philadelphia/) | 25,000 to 50,000 | 47 | | [Commonwealth of Kentucky](https://enrich.chat/company/commonwealth-of-kentucky/) | 25,000 to 50,000 | 10 | | [Commonwealth of Massachusetts](https://enrich.chat/company/commonwealth-of-massachusetts/) | 25,000 to 50,000 | 70 | | [ESS](https://enrich.chat/company/ess/) | 100,000+ | 29 | | [FEMA](https://enrich.chat/company/fema/) | 10,000 to 25,000 | 34 | | [Florida Health](https://enrich.chat/company/florida-health/) | 10,000 to 25,000 | 11 | | [HHS.gov](https://enrich.chat/company/hhs-gov/) | 50,000 to 100,000 | 57 | | [Houston ISD](https://enrich.chat/company/houston-isd/) | 25,000 to 50,000 | 6 | | [Indiana House Democratic Caucus](https://enrich.chat/company/indiana-house-democratic-caucus/) | 25,000 to 50,000 | 112 | | [Jefferson County Public Schools](https://enrich.chat/company/jefferson-county-public-schools/) | 10,000 to 25,000 | 19 | | [Learning Care Group](https://enrich.chat/company/learning-care-group/) | 10,000 to 25,000 | 26 | | [Maximus](https://enrich.chat/company/maximus/) | 25,000 to 50,000 | 31 | | [MIM](https://enrich.chat/company/mim/) | 25,000 to 50,000 | 16 | | [State of Arkansas](https://enrich.chat/company/state-of-arkansas/) | 50,000 to 100,000 | 53 | | [State of California](https://enrich.chat/company/state-of-california/) | 25,000 to 50,000 | 100 | | [State of Michigan](https://enrich.chat/company/state-of-michigan/) | 25,000 to 50,000 | 54 | | [State of Ohio](https://enrich.chat/company/state-of-ohio/) | 50,000 to 100,000 | 67 | | [State of Oregon](https://enrich.chat/company/state-of-oregon/) | 25,000 to 50,000 | 74 | | [State of Utah](https://enrich.chat/company/state-of-utah/) | 10,000 to 25,000 | 88 | | [Teach For America](https://enrich.chat/company/teach-for-america/) | 50,000 to 100,000 | 50 | | [Transportation Security Administration (TSA)](https://enrich.chat/company/transportation-security-administration-tsa/) | 50,000 to 100,000 | 15 | | [U.S. Department of Commerce](https://enrich.chat/company/u-s-department-of-commerce/) | 25,000 to 50,000 | 35 | | [U.S. Department of Transportation](https://enrich.chat/company/u-s-department-of-transportation/) | 50,000 to 100,000 | 44 | | [United States Courts](https://enrich.chat/company/united-states-courts/) | 25,000 to 50,000 | 55 | | [US Environmental Protection Agency (EPA)](https://enrich.chat/company/us-environmental-protection-agency-epa/) | 10,000 to 25,000 | 34 | | [USCIS](https://enrich.chat/company/uscis/) | 25,000 to 50,000 | 27 | | [USDA](https://enrich.chat/company/usda/) | 10,000 to 25,000 | 55 | ## What technology do government agencies in the United States use? These tools stand out among them: each is detected more often here than across all the organizations listed. The tick on each bar marks that wider average. **Figure: Tools that stand out among government agencies in United States.** Bars for the share of listed government agencies in United States where each tool was detected, with a tick for the share across everything listed: Google Translate API 57% against 9%, Microsoft IIS 35% against 11%, Constant Contact 32% against 2%, Mailchimp 22% against 4%, Webex 18% against 3%, Google Analytics Ecommerce Tracking 13% against 6%. *Share of listed government agencies in the United States where each tool was detected. The tick marks the share across all listed organizations.* ## Where in the United States are they based? The bars show the headquarters city of the listed government agencies. **Figure: Headquarters cities of government agencies in United States.** Bars for the share of listed government agencies in United States headquartered in each city: Washington 5%, New York 3%, Houston 2%, Arlington 2%, Phoenix 2%, Boston 2%. *Share of listed government agencies in the United States by headquarters city.* ## How big are government agencies in the United States? The columns show how they spread across six size ranges. **Figure: Size of government agencies in United States.** Six columns for the share of listed government agencies in United States in each size range: 2-5K 51%, 5-10K 24%, 10-25K 16%, 25-50K 6%, 50-100K 3%, 100K+ 1%. *Share of listed government agencies in the United States in each size range.* ## More to explore Other industries in the United States: [Hospitals and health care](https://enrich.chat/companies-in/united-states/hospitals-and-health-care/)[Information technology and services](https://enrich.chat/companies-in/united-states/information-technology-and-services/)[Retail](https://enrich.chat/companies-in/united-states/retail/)[Higher education](https://enrich.chat/companies-in/united-states/higher-education/)[Financial services](https://enrich.chat/companies-in/united-states/financial-services/)[Insurance](https://enrich.chat/companies-in/united-states/insurance/)[Restaurants](https://enrich.chat/companies-in/united-states/restaurants/)[Mechanical or industrial engineering](https://enrich.chat/companies-in/united-states/mechanical-or-industrial-engineering/)[Real estate](https://enrich.chat/companies-in/united-states/real-estate/)[Automotive](https://enrich.chat/companies-in/united-states/automotive/)[All of United States](https://enrich.chat/companies-in/united-states/) Government administration elsewhere: [United Kingdom](https://enrich.chat/companies-in/united-kingdom/government-administration/)[Brazil](https://enrich.chat/companies-in/brazil/government-administration/)[Sweden](https://enrich.chat/companies-in/sweden/government-administration/)[France](https://enrich.chat/companies-in/france/government-administration/)[Texas](https://enrich.chat/companies-in/texas/government-administration/)[India](https://enrich.chat/companies-in/india/government-administration/)[Canada](https://enrich.chat/companies-in/canada/government-administration/)[Netherlands](https://enrich.chat/companies-in/netherlands/government-administration/)[California](https://enrich.chat/companies-in/california/government-administration/)[Australia](https://enrich.chat/companies-in/australia/government-administration/)[Government administration](https://enrich.chat/industries/government-administration/) ## How do you reach agency CIOs, program directors and procurement officers at government agencies in the United States? Pick an organization from the table, then ask your AI agent for the people in the roles you sell to. ```text Use www.enrich.chat to find agency CIOs, program directors and procurement officers at [company] in the United States, with titles and verified work emails ``` ## Frequently asked questions ### Which government agencies are headquartered in the United States? They include Air Force Civilian Service, ESS, HHS.gov, Teach For America and Transportation Security Administration (TSA). The page lists a selection with links to their profiles. ### What technology do government agencies in the United States use? Tools that stand out include Google Translate API, Microsoft IIS, Constant Contact and Mailchimp. ### How big are government agencies in the United States? They range from about 2,000 employees to well over 100,000. The columns on this page show the spread. ### Who do you sell to? Usually agency CIOs, program directors and procurement officers. Ask your AI agent to use www.enrich.chat to find them with verified work emails. ## Try this prompt Find agency CIOs, program directors and procurement officers ```text Use www.enrich.chat to find agency CIOs, program directors and procurement officers at [company] in the United States, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Hospitals and health systems in the United States](https://enrich.chat/companies-in/united-states/hospitals-and-health-care/) - [Software and technology services companies in the United States](https://enrich.chat/companies-in/united-states/information-technology-and-services/) - [Retailers in the United States](https://enrich.chat/companies-in/united-states/retail/) - [Colleges and universities in the United States](https://enrich.chat/companies-in/united-states/higher-education/) - [Government agencies in the United Kingdom](https://enrich.chat/companies-in/united-kingdom/government-administration/) - [Government agencies in Brazil](https://enrich.chat/companies-in/brazil/government-administration/) - [Government agencies in Sweden](https://enrich.chat/companies-in/sweden/government-administration/) - [Government agencies in France](https://enrich.chat/companies-in/france/government-administration/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)