Raytheon, an RTX business, has delivered its 500th Evolved SeaSparrow Missile (ESSM) Block 2 to the U.S. Navy, marking a major milestone in one of NATO’s most enduring air defense programs.
The company says it is preparing to nearly double production by mid-2026 as global demand for advanced naval air defense capabilities continues to grow.
The ESSM Block 2 is a modernized surface-to-air missile designed to defend naval forces against a wide spectrum of aerial and surface threats. It features a dual-mode active and semi-active radar seeker, upgraded guidance systems, enhanced maneuverability, and improved overall performance compared to the Block 1 variant.
“ESSM plays a crucial role in helping to ensure both ship self-defense and local area defense for U.S. and allied navies around the globe,” said Barbara Borgonovi, president of Naval Power at Raytheon. “The continued delivery of this capability is a testament to the strong partnerships and shared commitment among our team, our customers, and our allied nations to equip our servicemen and women with the best defense solutions.”
According to the company, investments in infrastructure and material are already underway to support an accelerated production schedule. Raytheon expects to nearly double output by June 2026, reflecting both U.S. Navy requirements and growing interest from allied navies seeking to enhance their layered air defense networks.
The ESSM Block 2 provides a vital layer of protection for a range of naval vessels — including destroyers, frigates, and aircraft carriers — against threats such as cruise missiles, fast-attack craft, and advanced anti-ship weapons. The missile’s improved agility and radar-guided precision enable it to engage targets more effectively in complex operational environments.
The delivery of the 500th missile underscores the program’s maturity and sustained relevance in modern naval warfare. As potential adversaries field increasingly advanced anti-ship and aerial threats, systems like ESSM Block 2 are becoming a critical element of layered defense strategies designed to protect high-value surface assets and maintain maritime superiority.