About Us

Today, Magnelab designs and manufactures high quality custom  and standard magnetic components in a fully equipped state-of-the-art manufacturing facility. We serve many industries such as medical, computer, and electrical management. We fulfill orders from a handful of custom parts, to large orders with many thousands of parts.

Magnelab is a current transformer manufacturer founded in 1968 by Carl Forsberg in Boulder, Colorado. Under the original name of Magnetek, Carl began manufacturing technology, such as simple antenna coils to complex military switching transformers from his home.

In 1995, Solomon Corporation, manufacturer of current transformers, enclosers and regulators for electrical utilities and industries, purchased Magnelab. That year, Magnelab moved into a new 16,000 square foot facility in Longmont, Colorado, approximately 35 miles north of Denver.

Magnelab is currently owned by Manutech, based in Miami, Florida. Manutech has been designing and manufacturing all types of magnetic components for more than 45 years and employs 350 people in its offshore facility.

Magnelab serves the monitoring industry with a standard line of precision current transformers. These include the flexible RopeCT® (Rogowski coil), split-core ‘opening type’ current transformers, ‘non-opening type’ toroidal current sensors, and precision potential transformers.

We offer the best of both worlds — quick turn-around of smaller quantities, as well as larger volume competitive pricing. Our offshore advantages include the lowest labor costs in the Western hemisphere, making our pricing competitive with suppliers anywhere!

Magnelab is an ISO 9001 certified company, maintaining our tradition of quality and continual process improvement.

We are a fully staffed current transformer manufacturer and engineering organization with the ability to build from print or by design. We look forward to building a strong business relationship with your company or organization.


Magnelab, Inc., 600 Weaver Park Road, Longmont, CO 80501 – p: 303-772-9100 – f: 303-772-9400 –