Wm. S. Haynes, Co. Founded in 1888 in Boston, Massachusetts, William S. Haynes Co. is the oldest maker of flutes in America and highly regarded for creating some of the finest instruments, introducing innovations that have long since become industry standards. The company has earned an unparalleled reputation for having the highest artistic integrity and dedication to exceptional quality in manufacturing superbly crafted flutes, resulting in a brilliant sound that is beyond compare. Since 2010, the company has expanded to a state-of-the-art facility in Acton, Massachusetts.