BC Rich has many electric guitars that are manufactured.  They include one and two neck, left handed, and basses.

Andy's Guitars is a specialist in Electric and left handed guitars.  They sell the finest boutique, vintage, & custom guitars, stringed instruments and amplifiers available anywhere.

Gaskell Guitars specializes in manufacturing left-handed electric guitars.  Gaskell Guitars was started in Australia by New Zealand-born left handed guitarist Kevin Gaskell, initially out of frustration over the BS and lack of availability of popular electric guitars in left hand!