Curt Mangan is a boutique guitar string manufacturer based in Cortez, Colorado, founded in 2004 by Curt Mangan after a 17-year run as Director of Sales and Marketing at Ernie Ball. The small-batch operation produces over 400 premium single strings and hundreds of packaged sets for electric and acoustic guitar, electric and acoustic bass, classical guitar, mandolin, banjo, bajo sexto, pedal steel and other stringed instruments.

The company is built around its trademarked FusionMatched process, a proprietary recipe approach that pairs USA-drawn wire with custom machinery to control core-to-wrap ratios for each gauge. Catalog options span nickelwound, pure nickel, stainless steel, monel, phosphor bronze, 80/20 bronze and coated variants, with both round-core and hex-core constructions offered across the lineup.

Distributed through independent music retailers and a network of international dealers, Curt Mangan strings have been used by artists including Bryan Adams, Dolly Parton, Miranda Lambert, Matt Schofield, Relient K and G.E. Smith. The brand positions itself in the craft/boutique tier of the string market, emphasizing US manufacturing and per-batch quality testing.

Curt Mangan has 4 products cataloged on Equipboard, including Strings. Their gear is featured by 6 artists, with the strongest followings in Rock, Blues, and Metal. Notable users include Neal Casal, John McEntee, and Allen Hinds.