Assembly & Sub-Assembly Services

MSI specializes in contract assembly and sub-assembly for manufacturers looking to streamline production and control costs.


Contract assembly and sub-assembly companies play a crucial role in the success of your manufacturing production. Our 6S processes drive us to continuously identify cost reduction opportunities, and deliver high-quality products quickly and collaboratively with just-in-time (JIT) inventory and ultra-efficient production. 

Our extensive expertise allows us to handle nearly any industrial or manufacturing sub-assembly service, including aerospace, marine, simple electronics, mechanical, and more.

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The Insider’s Guide to Assembly & Sub-Assembly For Manufacturers

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Reduce costs and increase speed to market by outsourcing to a trusted contract assembly & sub-assembly manufacturer.


MSI augments your workforce with skilled and experienced technicians, eliminating the need to attract, hire, and train new employees so you can save time and money, and scale with your production demand.


Outsourcing your assembly or sub-assembly project instantly increases your production footprint without needing a capital-intensive investment like building, buying, or leasing additional facility space.

Production On Demand Scheduling

When your customer’s demands change your production needs MSI’s flexible scheduling will allow you to dial up or dial down production volume quickly. MSI will build your product the way you want it and deliver your products quicker, from right here in the US.

Capitalize on Market Opportunities

Develop newer, faster, and better technologies with your trusted team of in-house technicians while delegating the complicated assembly of your products and technologies to MSI.

Process Expertise

Our company-wide commitment to Lean manufacturing, Kaizen, and 6S principles have improved our customer value year after year. Our dedication and focus on optimizing assembly processes enables our manufacturing operation to produce and deliver higher quality products in less time with less waste.

Fixed Per-Unit Pricing

Every manufacturer is challenged with controlling production labor costs. MSI's fixed per-unit pricing virtually eliminates this fluctuation, flattens costs, and saves you money.

Made in America

A multi-year recipient of the Vermont Business Growth Award, MSI is headquartered and fully operates in Morrisville, Vermont. We assemble and deliver your products quickly and efficiently from right here in the US. Your customers will notice and appreciate the difference.

Flexible End-to-End Manufacturing Services

Choosing to outsource your assembly and supply chain challenges to a trusted USA-based contract manufacturer provides you with the confidence of knowing that your products are shipped on time and with the quality your customers expect.

Consistent Quality Control

Our highly skilled team follows our work instructions and quality management system to meet your requirements. If MSI causes the defect, MSI credits you 100%.

Assemble. Package. Store. Deliver. 

For a flat-rate, we'll assemble, package, store and deliver high-quality products quickly and collaboratively to achieve your company's dynamic production goals. If MSI causes the defect, MSI credits you 100%.