About MMG
Complete manufacturing solutions, fully aligned with your vision.
We’re more than a partner; we’re an extension of your business.
The Company:
Momentum Manufacturing Group (MMG) is one of the top 10 largest precision metal manufacturing companies in North America, supporting the world’s most demanding OEMs and Tier One manufacturers. With 11 integrated facilities spanning Vermont, New Hampshire, Massachusetts, and Maine, MMG brings together over 800,000 square feet of manufacturing space, 700+ skilled employees, and more than 40 years of industry experience.
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.
Revenue
$ in Millions
Leadership and Values
Led by a forward-thinking executive team committed to innovation, workforce development, and long-term customer partnerships, excellence is what drives our values—Trust, Reliability, and Scalability. These principles guide and inform every customer conversation as well as the investments we make in technology and people.
John Brocke
Chief Executive Officer

John Brocke
Chief Executive Officer
John joined Momentum Manufacturing Group in 2022 to lead the company’s expansion into the semiconductor, defense, medical, and aerospace markets. He was promoted to CEO in 2024, following his transition into the Chief Operating Officer role. He brings over 20 years of experience in various manufacturing leadership roles, including General Electric and United Technologies Corporation as the Global Supply Chain General Manager, as well as extensive merger and acquisition experience. Before joining MMG, John worked in the private equity space and led a turnaround as CEO, ultimately executing a transaction that rewarded all shareholders. He holds a bachelor’s degree in Mechanical Engineering from the Missouri University of Science and Technology.
Sven Doerge
Chief Financial Officer

Sven Doerge
Chief Financial Officer
Before joining Momentum Manufacturing Group in 2024, Sven served as CFO for multiple Private Equity-owned manufacturers like Hyperion Solutions (Elevator Components), Innovative Chemical Products (Coatings & Adhesives), and Goss International (Printing Presses). He has also held senior-level management positions in various countries and specializes in strategic planning, reorganization, and cost reduction management. He has a track record of consistent value-added and continuous improvement activities that resulted in favorable shareholder returns. Sven holds a master’s degree in business and accounting from the University of Goettingen (Germany).
Matthew Smith
Chief Commercial Officer

Matthew Smith
Chief Commercial Officer
Matt joined Momentum Manufacturing Group (formerly NSA Industries) in 1988. As a prior operator of CNC lathes and screw machines, metal fabrication production manager, and a member of the purchasing organization, he brings essential product knowledge and application expertise to the management team. Matt served as MMG’s Vice President of Sales and Marketing for over seven years before stepping into the role of Senior Vice President of the Northern operations for three years, followed by a term as President of the Industrial Group.
Andrew Curland
President, Engineered Extrusions

Andrew Curland
President, Engineered Extrusions
Andrew joined Momentum Manufacturing Group in 2019 after leading the sale of his company, Vitex Extrusions, to MMG. He had been with Vitex since 2002, holding sales and operational leadership roles. In 2007, he purchased Vitex in partnership with a private equity firm and became CEO/President. Previously, Andrew founded Stamford Metals Corporation in New York and has held sales and marketing leadership roles in the aluminum and steel industry. He holds a bachelor’s degree in finance from Mercy College.
Darci Ruggles
Director, Quality Systems

Darci Ruggles
Director, Quality Systems
Darci joined Momentum Manufacturing Group (formerly NSA Industries, LLC) in 2008. She has over 20 years of quality systems experience. Darci began her career in Quality at Lydall-Automotive Group, a 1st tier automotive supplier. She is a Lean Six Sigma Black Belt and has contributed to multiple projects within MMG’s Northern facilities. Promoted to Director of MMG Quality Systems in December 2020, Darci has focused on implementing best practices across all MMG facilities.
James E. Moroney
Chairman

James E. Moroney
Chairman
Jim stepped down as CEO in 2024, following nearly 14 years at the helm of Momentum Manufacturing Group. Jim began his career in public accounting at Coopers & Lybrand and has more than 40 years of experience as a CFO and COO at the public company level and in three entrepreneurial ventures. These businesses achieved exceptional success and profitability during his tenure. Jim holds a bachelor’s degree from the University of Pennsylvania’s Wharton School. He was also a United States Olympic rowing team member in 1972 and 1976.
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

