I am pretty sure they are Bevolo, out of Louisiana.

Hi Medlap.

Hi there! We aren't sure of the manufacture in the picture
above but we do make several similar styles from American-mined copper. The Governor Lantern and Coach House on the Tudor Scroll bracket have the most
similarities to the fixtures you are interested in (but we do have hundreds of
options). Most of our most popular residential styles range from about $300
to $800 per lantern. Feel free to email
us plans or pictures of
your space and will be happy to make style and scale recommendations.