This list not necessarily a complete listing of all organizations, manufacturers or distributors nor does listing imply ACB endorsement.
American Thermoform
Braille paper is available In continuous sheets or as single sheets.
https://americanthermoform.com/product-category/braille-paper/
EnableMart
Braille paper is available in two standard sizes 8.5" x 11" or 11.5" x 11" (Finished Size) with 19 Holes or plain edges
www.enablemart.com/Braille-Paper_2
Independent Living Aids
Braille paper in packs of 100 sheets and plastic file cards in packs of 50 are available.
www.independentliving.com/products.asp?dept=7
Star Continuous Card Systems
Star’s Braille paper products come in two sizes, with and without 19 hole (GBC) punch. The 8 ½ x 11 paper is also available in 3 hole punch. All have perforated detachable tractor feed side panels for use in Braille printers / Braille embossers.
www.braillepaper.com/