ST. LOUIS, MO — Jacobs was selected to deliver design, engineering, and environmental services for Boeing’s multi-billion-dollar expansion at its St. Louis, Missouri, campus.

Designed to nearly double Boeing’s regional manufacturing footprint, the 1.1-million-square-foot expansion will support advanced assembly facilities and the associated post assembly operations center for future generations of advanced aircraft.

Site construction is underway and will be completed in multiple phases between 2026 and 2030.

"During the past two years, our ongoing collaboration with Boeing — from design concept through construction and accelerating National Environmental Policy Act approvals in eight months — reflects Jacobs’ commitment to supporting national security and defense operations by providing critical facilities and infrastructure," Executive Vice President Susannah Kerr said. "This achievement — including the required demolition of an old facility — demonstrates our experience navigating complex design and environmental challenges.” 

“The largest investments Boeing is making in defense is in St. Louis,” said Mark Webb, Vice President of Boeing St. Louis Site Readiness. “The new classified facilities will feature the greatest advancements in digital design and manufacturing the world has seen. Our St. Louis site will continue to grow in facilities and head count for the next several years.”