Log in


With massive names like Northrup Grummun and JPL calling the San Gabriel Valley home, it’s no surprise that many smaller aerospace companies also populate the region.

In addition, the San Gabriel Valley is home to many small, independent machine shops that service aerospace as well as other industries’ needs.

Dow Hydraulics

Dow Hydraulic Systems started out with a single honing machine in a garage and a vision for the future. After almost 50 years and 3 generations of Dow Family leaders, it operates in over 30, 000 sq. ft. in Pomona and La Verne, and employs over 150 people. Much of the success can be accredited to the second generation of Dow family members that have been able to take their father’s vision and turn it into a successful, reputable, and well known leader in the aerospace industry.

The Gill Corporation

Gill Corporation in El Monte  performs aerospace manufacturing, research and development. Their historical stability, integrity, the informal climate of the privately owned company, and long term growth make them a strong force in composites manufacturing primarily related to aerospace.

Northrop Grumman

Northrop Grumman in Azusa is a global aerospace and defense technology company. With over 85,000 employees and an annual revenue in excess of $30 billion, it is one of the world’s largest weapons manufacturers and military technology providers.

Vacco Industries

VACCO Industries in South El Monte is a leading designer and manufacturer of specialty valves, filters and advanced fluid control products—offering innovative engineered solutions to critical missions for defense, space, and commercial markets.

San Gabriel Valley Economic Partnership

248 E Foothill Blvd, Suite 100, Monrovia CA 91016

Phone: (626) 856-3400    Fax: (626) 856-5115


Office Hours: Monday–Thursday 9:00 a.m. to 5:30 p.m.,
Friday 9:00 a.m. to 1:00 p.m.

Powered by Wild Apricot Membership Software