Andreessen Horowitz backs 37 American Dynamism companies that build for defense and national security. 35 are mapped below by headquarters, along with 26 major sites outside headquarters. Click any company for funding, headcount, hiring and founders.
Click a row to show the company on the map. Click a column heading to sort.
a16z’s jobs board tags 68 companies as American Dynamism. We kept the 37 that sell to defense, intelligence, homeland security or the defense supply chain, and left out energy, logistics, education and housing.
Open role counts are from the a16z jobs board on November 5, 2026. The hiring mix sorts up to 25 current job titles per company into seven categories, so treat it as a sample.
Headcount and one year growth come from LinkedIn profile counts. Funding rounds come from Crunchbase. Founder work histories come from LinkedIn. All three were pulled through Crustdata, and some rounds were checked against The Arena’s own records. Undisclosed amounts are shown as undisclosed.
Pins sit on each company’s listed headquarters. Six companies list none, so we placed them where most of their team works and marked them estimated. Amca and Specter have no reliable location and appear in the table only.
A US metro outside headquarters counts as a major site when it holds at least 20 staff and 3% of the company, or has a listed office. Anduril’s Arsenal 1 factory in Ohio is added from its public announcement because it is too new to show in staff data. Sites abroad are listed in each company’s panel.
Hardware means physical products. Software means software only. Both means hardware where the company’s own autonomy or AI software is core to what it sells. The Arena assigned each company from its products.