Market Size for Defense security company in 2026 [Example]

The total available market (TAM) for defense security can be approximated by encompassing global spending on defense, security, and military-related services. According to various industry reports, global defense spending has been estimated to exceed $2 trillion annually. Focusing on security services, which occupy a significant portion, we can conservatively estimate that defense and security-related services amount to around $500 billion annually. This includes private security, cybersecurity, surveillance, and monitoring services reaching a potential market size serving approximately 1 billion individuals worldwide involved in or benefiting from security services.

The serviceable addressable market (SAM) narrows down to the segment that your defense security company can realistically target based on your geographical focus and business model. If we assume your business provides local and regional security services, we can estimate that you could reasonably capture around 20% of the larger TAM, equating to $100 billion. This includes urban and commercial centers where security services are highly targeted. When considering the number of people involved in these businesses and industries relying on security solutions, we estimate approximately 200 million individuals within various sectors that would be your target customers.

The serviceable obtainable market (SOM) further focuses on the customers you can realistically convert in the first year of operations. Given that the target conversion for new businesses in the defense security space is typically modest, capturing about 1% of your SAM is a realistic goal. This translates to a potential annual revenue of around $1 billion. Your expected client base would involve about 2 million customers, including medium-sized businesses and other institutions looking for security services while trying to maintain conservative estimates of market penetration in your first year.