List of Glassmaking Companies in USA:

Anchor Hocking
Bakewell Glass
Bakewell, Pears and Company
Ball Brothers Glass Manufacturing Company
Ball Corporation
Bellaire Goblet Company
Belmont Glass Company
Blenko Glass Company
Boston and Sandwich Glass Company
Brockway Glass Company
Bullseye Glass
Corelle Brands
Corning Glass Works
Corning Inc.
Dugan Glass Company
Duncan & Miller Glass Company
Early American molded glass
Fenton Art Glass Company
Fostoria Glass Company
Fostoria Shade and Lamp Company
General Glass Industries
Guardian Industries
Hartford City Glass Company
Hazel-Atlas Glass Company
Hemingray Glass Company
Hobbs, Brockunier and Company
Indiana Glass Company
J. H. Hobbs, Brockunier and Company
J.S. O’Connor American Rich Cut Glassware Factory
Johns Manville
Knox Glass Bottle Company
Kokomo Opalescent Glass Works
Lancaster Glass Company
Libbey Incorporated
Libbey-Owens-Ford
List of Glass Companies Led by Former Employees of Hobbs, Brockunier and Company
Louisville Glassworks
Mambourg Glass Company
Mosser Glass
New England Glassworks
New Martinsville Glass Company
Nickel Plate Glass Company
Novelty Glass Company
O-I Glass
Old Dominion Glass Company
Owens Corning
Owens-Illinois Glass Company
Pairpoint Glass
PPG Industries
The Root Glass Company
Seneca Glass Company
Sneath Glass Company
Steuben Glass Works
United States Glass Company
Uroboros Glass
Vetrazzo
View, Inc.
Warsaw Cut Glass Company
Westmoreland Glass Company
Wheaton Industries
Whitall Tatum Company
White Glass Company