About MMG

Complete manufacturing solutions, fully aligned with your vision.

We’re more than a partner; we’re an extension of your business.

Our Mission:

To simplify our customers’ supply chains through comprehensive, vertically integrated manufacturing solutions that deliver precision, scalability, and trust.

Our Vision:

To be the most reliable and strategic manufacturing partner for OEMs and Tier One suppliers serving high-growth, high demand, and high-tech industries.

Committed to Growth and Investment

MMG has invested more than $70 million in automation, advanced machining, and custom equipment since 2019 alone. Investments are purposed toward supporting our clients’ evolving needs for capacity to support their growth and scalability for large-scale production. We meet the most complex demands across Aerospace & Defense, Medical Devices, Semiconductors, and Data Center markets.

Facilities

MMG operates 11 manufacturing plants strategically located across the Northeast. Each facility is tailored to specific manufacturing disciplines, from aluminum extrusions and high-precision CNC machining to complex weldments and integrated subassembly.

Industrial Division

Headquarters

23 National Avenue,
Georgetown, MA 01833

Fabrication & Assembly

Groveton

48 Mechanic Street,
Groveton, NH 03582

Fabrication & Assembly

St. Johnsbury

210 Pierce Road,
St. Johnsbury, VT 05819

Fabrication & Finishing / Powder Coating

Lyndonville South

911 Industrial Parkway,
Lyndonville, VT 05819

Assembly​

Lyndonville North

815 Industrial Parkway,
Lyndonville, VT 05819

Machining & Fabrication

Technology Division

Ipswich East

31 Locust St,
Ipswich, MA 01938

Machining & Assembly

Topsfield

249 Boston St,
Topsfield, MA 01983

Fabrication, Machining & Assembly

Whitefield

208 Rockland Rd,
Whitefield, ME 04341

Machining & Assembly

Extrusion Division

Franklin East

43 Industrial Park Drive,
Franklin, NH 03235

Custom Aluminum Extrusions

Franklin West

109 Industrial Park Drive,
Franklin, NH 03235

Aluminum Extrusion Machining & Fabrication

Map of New England