N.J. Sullivan, Custom Metal Fabrication, Precision Machining, Powder Coating and electrical Utility products in the Washington DC Metro Area since 1958.
N.J. Sullivan Company Inc. is a privately owned company that was established in 1958. N.J.S began as a small sheet metal and machine shop producing custom parts for the Federal Government and private industries. In the early 70’s N.J.S. began to specialize in products for the electrical construction industry, manufacturing junction boxes, troughs, enclosures, cabinets and bus bars. While these items are part of N.J.’s proud history and are still produced today, they are just the tip of the iceberg.

N.J. Sullivan utilizes the latest technologies in Design, Engineering and Fabrication equipment. (Click Here for full equipment list)

Our experienced professional staff combined with our diverse equipment and capabilities allows us to meet all your custom metal fabrication needs in the most cost effective and expedited manner.

The N.J. Sullivan facility located in Dulles, VA consists of over 52,000 Sq Ft of Fabrication and office space.

We pride ourselves on always providing our customers with personalized service and high quality products.

Our Customers come from Small Shops, Fortune 500 Companies, Large Contractors, Electrical Utilities, Military, Aerospace, the Medical field and are as widely diverse as N.J. Sullivan’s capabilities.

Industries Served



The Principal 10 Best Companies

Principal 10 Best Companies

We are honored and privileged to be selected as one of The Principal ® 10 Best Companies for Employee Financial Security. Pictures from our Recognition Event: Our Employees Neil/Bud J. Sullivan II & Neil J. Sullivan Sr. Neil accepting the award from Paul Fromm (VP of Marketing-The Principal) Jim Sullivan, Neil ….read more…

Metal Fabrication – Powder Coating – Machining and Much, Much More