Perimeter Acquisition Corp. I is a special-purpose acquisition company incorporated to identify and combine with an established business in the defense and national security sectors, including aerospace and defense, space, government services, next-generation manufacturing, dual-use technologies, and national infrastructure security. The company targets well-established businesses in the United States or allied nations with strong earnings, recurring revenues, attractive margins, and high barriers to entry that align with national security priorities and benefit from re-industrialization initiatives. The company aims to acquire majority or controlling interests in qualifying candidates using its available capital and access to debt and equity markets, leveraging its experienced management team's decades of expertise in defense, technology, and national security to identify, evaluate, and scale acquisition targets.