> 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/company/amentum/ # Amentum A defense and space organization with 25,000 to 50,000 employees. Where it sits among its peers, the technology it runs and how to reach its people. By Enrich.chat Editorial. Updated October 21, 2026. **Short answer:** Amentum (amentum.com) is a defense and space organization with 25,000 to 50,000 employees. Its public technology footprint includes Microsoft 365, HubSpot and WP Engine. ## How big is Amentum? Amentum has 25,000 to 50,000 employees. Among the defense and space contractors on this site it sits among the largest. Each dot in the figure is one of its peers, placed by size; the orange dot is Amentum. **Figure: Where Amentum sits among defense and space contractors.** A strip of dots, one for each of 60 peers in defense and space, spread from 2,000 to 2,000,000 employees on a log scale. Amentum is highlighted and falls in the 25,000 to 50,000 employees range among the largest. *Peers in defense and space placed by employee count on a log scale. Sizes are rounded ranges from public profiles.* Headcount on public company profiles is rounded and moves as a company hires, so use the range as a guide, not as a payroll figure. ## Where is Amentum headquartered? Amentum is headquartered in Chantilly, Virginia. [More defense and space contractors in Virginia](https://enrich.chat/companies-in/virginia/defense-and-space/)[Companies in Virginia](https://enrich.chat/companies-in/virginia/) ## What industry is Amentum in? Amentum works in [defense and space](https://enrich.chat/industries/defense-and-space/). This group covers contractors that build weapons systems, military technology, satellites and space vehicles. Similar organizations on this site: [L3Harris Technologies](https://enrich.chat/company/l3harris-technologies/), [Leidos](https://enrich.chat/company/leidos/), [Raytheon Intelligence & Space](https://enrich.chat/company/raytheon-intelligence-and-space/), [Leonardo](https://enrich.chat/company/leonardo/), [Rheinmetall](https://enrich.chat/company/rheinmetall/) and [Raytheon Missiles & Defense](https://enrich.chat/company/raytheon-missiles-and-defense/). ## What technology does Amentum use? We detect 6 tools on Amentum's public footprint across 5 categories, for example HubSpot for marketing automation and crm, WP Engine for cloud and hosting and Microsoft 365 for email and productivity. The figure counts the tools in each category; the groups below name them and link to the companies that use each one. **Figure: Tools detected at Amentum, by category.** A bar chart of how many tools were detected at Amentum in each category: Marketing automation and CRM 1, Cloud and hosting 1, Email and productivity 1, CDN and security 1. *Tools detected on the public footprint of Amentum, by category.* ### Marketing automation and CRM [HubSpot](https://enrich.chat/companies-using/hubspot/) ### Cloud and hosting [WP Engine](https://enrich.chat/companies-using/wp-engine/) ### Email and productivity [Microsoft 365](https://enrich.chat/companies-using/microsoft-365/) ### CDN and security [Mimecast](https://enrich.chat/companies-using/mimecast/) Tools change as companies adopt and drop them. Check a single company at any time with the free [tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/). ## How do I find the right people at Amentum? Start from the website, amentum.com. Enter it in the free email finder with a name, or ask your AI agent for the people in the roles you sell to, such as program managers, engineering directors and CISOs. ```text Use www.enrich.chat to find the program managers, engineering directors and CISOs at amentum.com, with titles and verified work emails ``` Not sure how addresses are written at Amentum? The free [email format finder](https://enrich.chat/tools/email-format-finder/) shows the pattern for amentum.com. ## Which other companies use the same tools? See who else runs the tools Amentum uses: [Microsoft 365](https://enrich.chat/companies-using/microsoft-365/)[HubSpot](https://enrich.chat/companies-using/hubspot/)[Mimecast](https://enrich.chat/companies-using/mimecast/)[WP Engine](https://enrich.chat/companies-using/wp-engine/) ## Frequently asked questions ### How many employees does Amentum have? Amentum is in the 25,000 to 50,000 employees range on its public company profile. Headcounts are rounded and change as companies hire, so treat the range as a guide. ### What industry is Amentum in? Amentum works in defense and space. This group covers contractors that build weapons systems, military technology, satellites and space vehicles. ### What technology does Amentum use? Tools detected on its public footprint include Microsoft 365, HubSpot and WP Engine, across 5 categories. A detected tool shows it was seen, not what Amentum pays for it. ### Where is Amentum headquartered? Amentum is headquartered in Chantilly, Virginia. ### What is the website of Amentum? Amentum's website is amentum.com. Staff email usually uses a domain like it, so check the pattern with the free email format finder before you write to anyone. ## Try this prompt Find people at Amentum ```text Use www.enrich.chat to find the program managers, engineering directors and CISOs at amentum.com, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [L3Harris Technologies](https://enrich.chat/company/l3harris-technologies/) - [Leidos](https://enrich.chat/company/leidos/) - [Raytheon Intelligence & Space](https://enrich.chat/company/raytheon-intelligence-and-space/) - [Leonardo](https://enrich.chat/company/leonardo/) - [Rheinmetall](https://enrich.chat/company/rheinmetall/) - [Raytheon Missiles & Defense](https://enrich.chat/company/raytheon-missiles-and-defense/) - [Babcock International Group](https://enrich.chat/company/babcock-international-group/) - [Saab](https://enrich.chat/company/saab/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)