Home / Capabilities / Contract Assembly Services

Contract Assembly Services & Build to Print Manufacturing

Precision Assembly. Scalable Production. One Trusted Partner.

Located in Manchester, NH

Quality, Consistency, and On-time Delivery

Streamline Production with Expert Contract Assembly

At InSource Design & Manufacturing (InSource DMT), we provide full-service contract assembly solutions designed to streamline your production process and reduce operational complexity. Whether you need simple sub-assemblies or complete product builds, our team delivers consistent quality, tight tolerances, and on-time delivery—every time.

From prototype through full-scale production, we act as an extension of your team—handling the assembly so you can focus on growing your business.

Give us your existing blue print and we will manufacture your product to your specification. We will test your complete assembly and validate your product.  Outsourcing manufacturing to a build-to-print specialist allows you to focus on other business needs and doesn’t consume your resources.   Projects move faster and in many cases it is a more cost effective way to build your parts & products.  InSource specializes in Build-To-Print manufacturing in the following areas:

End-to-End Assembly Capabilities

High Quality Standards

We offer flexible assembly services tailored to your product and volume requirements:

  • Mechanical Assembly
    Precision assembly of machined components, fasteners, and hardware
  • Electro-Mechanical Assembly
    Integration of electrical components, wiring, and control systems
  • Sub-Assembly Services
    Build and supply ready-to-install subassemblies to streamline your production line
  • Full Product Assembly
    Turnkey assembly of complete products ready for shipment or distribution
  • Kitting & Packaging
    Custom kits, labeling, and packaging to meet your exact specifications

Why Choose InSource for Contract Assembly?

Single-Source Efficiency

Combine machining, fabrication, and assembly under one roof to reduce lead times, shipping costs, and vendor coordination.

Quality You Can Trust

Every assembly is built to spec with strict quality control processes, ensuring consistency and reliability across every unit.

Scalable Production

From low-volume builds to high-volume production runs, we scale with your needs—without compromising quality.

Experienced Team

Our skilled technicians and engineers understand complex assemblies and bring attention to detail at every step.

Supply Chain Support

We can source components, manage inventory, and ensure materials are available when you need them.

Medical Device Contract Manufacturing

Industries We Serve

We support a wide range of industries requiring precision assembly, including:

  • Industrial Equipment & Automation
  • Robotics & Drones
  • Medical Devices
  • Electronics & Instrumentation
  • Automotive & EV Components

Request a Quote

Upload your drawing or part file and provide any additional information to get started. We will contact your with any questions.

Request a Quote

We look forward to reviewing your request and typically respond within a day.  We may call with any questions.

"*" indicates required fields

This field is for validation purposes and should be left unchanged.
Name*
Drop files here or
Max. file size: 32 MB.
    Please provide any files to support this quote. CAD files will be helpful for us to provide an accurate quote and completion time.