Established by Stephen Bartlett Foster (1856-1932) and John Roy Foster (1863-1931), Foster Brothers opened in 1893 at 164 Boylston Street, Boston. By 1896, Foster Brothers had moved to 3 Park Square, just around the corner from its first location. Eventually, the business relocated to 4 Park Square, where it stayed for the remainder of its existence. The original Foster Brothers factory was housed in the old Parkman's Market building on Cambridge Street in Boston. In 1918, the Fosters built a new factory in Arlington, the suburb in which the brothers lived.
Foster Brothers was known for high quality frames that featured expert carving and gilding by fine craftsmen, consistent with the esthetic and philosophy of the Arts and Crafts movement of the time. Their frames that incorporated elements of early Dutch frames especially appealed to Boston School artists such as Edmund Tarbell and William MacGregor Paxton. Custom orders were welcomed from museums, galleries, collectors, and artists. In the 1890s, Foster Brothers operated a small gallery that featured watercolors and sketches by local artists; sporadic exhibitions continued throughout the 1930s. Early business cards and advertisements indicate that the company sold "wedding presents, etchings, engravings, water colors and picture frames." Among its best selling merchandise were mirrors in a wide variety of styles. As early as 1898, Foster Brothers began to copyright and publish reproductions of paintings, drawings, silhouettes, and miniatures. These were framed in sets and sold by Foster Brothers in its retail shop and by mail order; in addition, they were distributed through department stores, furniture stores, gift shops, and interior decorators.
John Roy Foster was in charge of promotion and merchandising, designing the retail line, and managing the company's wholesale and mail order businesses. Stephen Bartlett Foster managed the factory and oversaw all aspects of the manufacturing. Helen J. Foster, John's daughter, studied art at Smith College and by the late 1920s was a successful manager and saleswoman in the retail store. The Depression brought a sharp decline in sales. After the deaths of John and Stephen Foster, Helen and her husband, Shattuck Osborne, owned and managed Foster Brothers for another decade. Although the business closed in 1942, Foster Brothers frames continue to command high prices and are highly prized and sought after today.