About Us

Jeremiah 29:11 11For I know the plans I have for you,” declares the LORD, “plans to prosper you and not to harm you, plans to give you hope and a future.

Macdac Engineering is an Authorized Mastercam Reseller

Macdac Engineering’s is the Authorized Mastercam Reseller for Connecticut, Massachusetts, Rhode Island, New Hampshire, Vermont, Maine and New York since 1991. Macdac Engineering staff is spread out throughout New England so we can better support our customer. Our main office is centralized in the center of New England for easy access to all our customers facilities in a few hours.

Our History:

Founded in 1991, MACDAC Engineering has consistently been among the top 10 Mastercam resellers in North America for both sales and growth. In 2002, several employees purchased MACDAC Engineering from the original owners and made many improvements to the company.

We believe in supporting our customer’s with quality training and support before and after each sale. Our company continues to thrive because each of our specialists is committed to the highest standards of service to our customer base. Our sales and support team has over 80 years of experience in the design and manufacturing market. With this knowledge, our customers can quickly reap the benefits of a Mastercam purchase.

MACDAC Engineering’s Today

Because of MACDAC Engineering’s growing customer needs we occupy a state-of the-art facility in Somers, CT. In addition to our current staff of over a dozen employees, MACDAC Engineering has working relationships with specialists in software development and computer programmers who are used as needed. This working relationship gives MACDAC Engineering the ability to serve you, our customer, more effectively and eliminates a middleman approach.

Every shop floor looks different and every machine has its challenges. Over the years, we have developed the hands-on experience required to integrate any mix of machines, new or legacy and synchronize your data into your ERP, MES, or Machine Learning systems. Let your team focus on their core missions rather than spending time becoming domain experts on CNC connectivity – we have you covered.

Our Staff

What describes the perfect workforce? Strong leadership, professional staff, and technical expertise; or how about critical thinking, team work, or the ultimate respect and gratitude we owe to our clients?  Here at Macdac Engineering, we believe all of the above are key factors in having a successful team, and that these are the brick and mortar that have built us into a leader in the CAD/CAM industry.

The Excellerant team has spent the last three decades networking machines across hundreds of manufacturing plants. As the first-to-market pioneers of wireless DNC, we have a proven history of leadership at the forefront of manufacturing technology.

Our Support team

Technical Support – the men behind the curtain!  They provide meaningful fixes to users of Mastercam if and when the need arises.  Our tech department houses trained professionals with extensive technical backgrounds, allowing them to bridge the gap between the knowledge and scientific aspects of the materials produced at Mastercam.

Ready for anything, they can also help determine when a custom solution needs to be created to address a unique situation and apply it efficiently and effectively.  This advice includes, but is not limited to, Mastercam products. Support technicians are knowledgeable about the full range of products available, and they are committed to giving the best possible service to our Mastercam users.

Our Sales Team

Here at Macdac Engineering, we’re proud to provide the highest quality of account management in the Northeast. Our sales team is comprised of highly trained, dedicated associates, each with  years of valued experience. Because we understand that product knowledge is imperative, we enlist our sales force in an extensive Sales and Product training program, and we continually challenge them to expand their capabilities in any way possible.

We strongly believe in developing close relationships with our customers, which is why so many of them have relied on Macdac Engineering for their CAD/CAM and DNC-OEE needs for years. Our sales territories have been carefully drawn with one thing in mind: creating, building and maintaining customer relationships.

Email: sales@macdac.com


Veteran Owned Business

MACDAC Engineering is a Veteran Owned Business. The three owners of MACDAC were proud to serve their country in the United States Armed Forces.

Alan Duprey – President

Alan Duprey was a 2nd Class Petty Officer in the U.S Navy from 1981 – 1985. He was Machine repairmen and was stationed on the USS Constellation CV-64 and the USS Sierra AD 18.

Brian Duprey – Vice President

Brian Duprey was a Sergeant and served in the U.S. Air Force from 1985-1988. He was part of the 819 Red Horse Squadron and was Structural Specialist.

John Carpenter – Executive Vice President

John Carpenter was a 3rd Class Petty Officer in the U.S. Navy 1985 – 1991. He served in various locations in Electronics.

Our Team


Alan Duprey – PresidentBrian Duprey – Vice President 
John Carpenter – Executive Vice President David Matuszek – Senior Applications Engineer
Jennie Duprey – ReceptionistKaitlin Lynch – Customer Success Specialist
Aric Duprey – Technical Support Team ManagerNick Nikolov – Technical Support Representative
Bruce Goulet – Mastercam TrainerRick Lees – Director of Technical Operations
Casey Marquis – Senior Software Architect MichealPaul Louiselle – Lead Service Technician
Josh Olmstead – Marketing DirectorSam Williams – DNC/OEE Systems Technician
Sue Pulver – Office ManagerTracy Smith – Financial Officer


Why Choose MACDAC Engineering?

Macdac Engineering is the Mastercam Authorized Dealer for New England. We are an industry leader for over 20 years, MACDAC Engineering prides itself on meeting the demanding needs of our customers by providing excellent products at affordable prices and the support necessary to make our customers not only succeed, but to excel with their purchase. We are also a Veteran Owned Small Business.

Combining the best software and programming techniques with practical shop floor experience, MACDAC Engineering continues to dominate our competition in the Cad/Cam arena. MACDAC Engineering has provided a solution for well over 1,000 customers to date.

Our Customers

MACDAC Engineering offers solutions for designers and NC programmers involved in milling, routing, turning, wire EDM, plasma cutting, lasers, and 3D design/solids and drafting. Our customers range from one-person job shops to Fortune 500 manufacturers. The same software that is utilized by large corporations is still affordable enough for the small job shops.

In Closing

We at MACDAC Engineering are committed to offering a complete turn-key solution for our customers. We would like to help you grow your company by sharpening your skills and by introducing new technologies as they arise. MACDAC Engineering’s goal is to both encourage and support our customers throughout their Cad/Cam experience.

We are your complete solution for your design and manufacturing needs.  We offer Catia for design, Mastercam for CNC programming and a variety or solutions for communications to meet all your DNC, OEE, IIOT needs.