MacDiarmid Precision Machining div. of Potentia Ma

MacDiarmid Machine (MacD) is a Global Supplier that provides precision state-of-the-art machining and assembly of components from prototype through production for critical applications in all types of metals and plastics. We service several markets, including but not limited to, Robotics (commercial and military), Defense, Automation, Transportation, Conveyance, Laser Systems, Alternative Energy, Oil & Gas, Medical, Biotech, Semiconductor and Pharmaceutical. MacDiarmid Machine is an ITAR registered company, producing RoHS and REACH compliant products under our ISO 9001 certified quality management system.


As a Potentia Manufacturing Company, MacDiarmid works collaboratively with other Potentia affiliates to provide our customers synergistic solutions employing state-of-the-art technologies and a wide range of services.

Marzilli Machine Co. Inc

DFF Corporation

In 1969, DFF began servicing our customers with low volume prototype components. Prototype orders led to production orders and eventually to fully-tested electro-mechanical assemblies.


Today, DFF has grown into a contract manufacturer specializing in medium to high volume production of precision machined components and electro-mechanical assembly products. In addition, DFF offers engineering design assistance such as (DFM), design for manufacturing, (DFA), design for assembly and GD&T enhancements.


At DFF we believe that responsiveness to our customer needs will continue to separate us from our competition.

Millennium Plastics

Louis C Morin Company Inc

Boston Centerless

Boston Centerless is an industry leader in supplying precision bar materials, material testing services, and grinding services, specializing in close tolerances. We provide solutions to our customers to enhance their manufacturing processes.


Our focus is to deliver outstanding value. We serve customers all over the world in a variety of industries. The end result is always a high-quality product.

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Suppliers located in (Massachusetts)

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