O, HO, and N scale.
Contact Information
Address:Atlas Model Railroad Company, Inc.
378 Florence Avenue
Hillside, NJ 07205
Phone:
1-908-687-0880
Background
In their own words:"Atlas Model Railroad Company, Inc. has its roots in model railroad track and accessory making through invention, innovation and ingenuity. Atlas has a proud reputation as a family-owned business since 1949 and is well-known for quality and excellence in manufacturing track, locomotives, rolling stock and accessories in N, HO and O scales."
I believe it is also correct to add that Atlas offers more N scale locomotives that come with with DCC decoders already installed than any other manufacturer; an important point for people new to model railroading.