Electro-Mechanical Assemblies

Box Builds

Quality Mil-Spec Box Builds

Our commitment to excellence is evident in all of our services, from mil spec box build design to final assembly. We are proud to offer our customers the highest quality products, delivered on time and on budget.
Our team is well-versed in the latest automationtechnologies, with decades of experience delivering complex pneumatic, electronic, and computerized integrations for companies around the world.

All the Bells and Whistles

We are certified to the highest industry standards for box build quality assurance, including ISO 9001 and AS9100. Our team is highly trained in the latest technologies and processes, including IPC-A-610, IPC-A-620, and IPC-J-STD-001. We also have experience in RoHS, UL, and CSA certifications.
While the certifications are crucial, our team also has the skills and experience needed to do the job right. Our team is knowledgeable in a variety of materials and processes, including sheet metal fabrication, machining, welding, assembly, and more. We use the latest technologies and software to ensure accuracy and efficiency in the box build process.


When it comes to box build assemblies, we know all the ins-and-outs and can build to the most complex specifications there are. Not only that, but we can help source materials and provide the parts and resources you need for every detail of your box build.

We can help with every part of your box build including:

  • Enclosures
  • Connectors
  • Cables
  • PCBs
  • Electrical components
  • Power supplies
  • Wiring and harnesses
  • Labels and markings

Mil-Spec Approved

At FSE, we have the experience and capabilities to provide military and defense box builds for the world’s harshest conditions. We are an approved supplier for the Department of Defense, and we have mil-spec certifications, including MIL-STD-461 and MIL-STD-810.
When it matters most, companies trust FSE to get the job done right, every time.

A Partner You Trust

The world’s largest companies keep coming back to FSE because we are so much more than a contract manufacturer. We Design for Manufacturability (DFM), simplifying, optimizing and refining your box build so that you always get the best solution at the lowest possible cost. We also practice lean manufacturing, minimizing waste and maximizing efficiency everywhere we can, ultimately saving you time and money.
Military person interacting with equipment

End to End Solutions

FSE is part of the CVG corporate portfolio, which gives us access to global resources that smaller companies just don’t have. At FSE, we can help our customers source raw materials, ideate, design, prototype, manufacture and deliver everything they need to get projects off the ground and running.

How We Can help

UL 508A, ISO 9001 And 14001 Certified
Quick Turn-Around Of Design And Product
On-Site Prototyping, Design, Engineering And Manufacturing
140,000 Square Foot Dedicated Facility
ESD And Humidity Controlled Manufacturing Floor
Vendor Management Inventory (VMI) Programs
Long-Term Raw Material And Finished Goods Storage
Customer Consignment Programs
100% Functionality And Quality Testing
Engineering And Technical Support

Have a Box Build Project?

We can help.

If you’re ready to get your box build project moving, send us your specifications. If you need help with the design and prototyping phase, we can help with that too. Just reach out to speak to one of our experts.

Let’s Get the Conversation Started

No matter where you are in the process, we can help you get over the finish line.