Arthur Crow (born 1928) was a maker of fine archtop jazz guitars based in rural Longmont, Colorado. He died in 1996.

Jim Cairnes was an English guitar maker, born around 1946 in Bournemouth, UK. Cairnes moved to Teeside as a child, and this is where he spent most of his life. Cairnes taught himself the electric guitar as a teenager and made his first one at the age of 16 in the early 1960s. By 1970 he had opened a guitar making factory with Brian Goodhall in Cumberland Road, Middlesbrough. Early on they launched the Colt Peacemaker (a revolver shaped guitar) in 1970 as a eye catching design to get publicity for their business, but Jim made many other great original guitar and bass designs including the Starguard and Stud electric guitars and the Stag bass. Cairnes also made his own pickups and supplied pickups to other UK guitar and bass makers. Jim Cairnes died in 2011 aged 65, he was still working on guitars until illness forced him to stop.

XXL guitars are made by Marc Lupien in a shop called “Les ateliers de la corde”  in Beauharnois, Québec. XXL was started in 2003 when Lupien resolved to make a Danelectro style electric guitar but from high quality materials. The result was a light guitar but with great sustain and tone. Lupien collaborated with his friend and fellow luthier Daniel Fiocco to produce small production runs of high quality guitars. Fiocco has since moved on to work for Godin as a guitar designer,

Source: XXL Guitars website (1 August 2022)

Form Factor Audio is a brand name of Lera Audio Group, used for bass amplifiers, cabinets, bass guitars and guitar stands. Production is based in California, USA.

Source: Form Factor Audio website (1 August 2022)

Gullett Guitar Co. was founded in 2015 by Chase A. Gullett. He first made an electric guitar in his high school wood-shop, but his first completed successful instrument was made in his mid twenties. Gullett  specializes in handmade electric guitars, which he builds in his small studio in central Ohio. Gullett has developed several unique guitar models over the years including the Superbird, Cobra, Daytona and Challenger. He also makes a more traditional T-model but with his own fresh take on the design.Each one as unique as the artists who play them. Featuring subtle design nods to icons and odd balls. Offering a fresh take on style paired with effortless playability allowing you to explore your own creative spaces.

Source: Gullett Guitar Co website (1 August 2022)

Josh Gravelin makes and repairs guitar & bass pickups. Gravelin is also a bass player and started out playing in punk bands in his native Minnesota before moving to Austin where he lived for 15 years and played with various bands including Cotton Mather, MAD6 and Midnite Auto Supply. On his return to Minnesota in 2010 Gravelin he started the Americana group The Wooden Nickels.

Source: Gravelin Pickups website (31 July 2022)

Vin Paul electric guitars are hand-made in New Jersey and New York.

Source: Vin Paul Guitars website (31 July 2022)

Magic Fluke was established in 1999 by Dale and Phyllis Webb in New Hartford Connecticut. Dale was encouraged by his brother-in-law Jim Beloff (a musician and publisher of music books and videos) to develop an affordable, USA-made ukulele. They introduced their prototypes and a handful of Jim’s books and CDs at the NAMM show in January of 1999. The Magic Fluke Company was born: orders started coming in and they had to quickly tool up and start producing instruments. The first concert Flukes started shipping in June of 1999 with three color options.  They have since added numerous variations, as well as  other instruments. Their product range includes: Soprano, Concert, Tenor, and Baritone Uke Banjos; a  5 string Banjo; solid body Electric Uke and Timber Bass; the Cricket travel Fiddle and Viola; and a 4 string Mandolin.

Thomas Tietzsch-Tyler is a custom electric guitar maker, based in Sheffield, UK. Since 2015 he has been based in a workshop in Sheffield's historic Portland Works where he makes electric guitars in limited runs, builds custom instruments and does repairs and restorations. He hand winds his own pickups and is careful to  work with suppliers who deliver FSC certified timber and are actively engaged in ensuring the sustainability of the exotic species used in Luthiery. He also uses old-stock wood in his builds, collected from sources like architectural salvage and retired woodworkers. Tietzsch-Tyler's background was as an art technician, and he has studied Automotive Design and Fine Art. He also has many years experience as a guitarist in various bands - all of this feeds into his guitar building approach.
Source: Tietzsch Guitars website (30 July 2022)