This subseries contains materials related to vendors that may have helped with managing printing, packaging, publishing, logistics/shipping. Materials in this subseries are arranged alphabetically by vendor name or product type with more generic materials arranged at the end of the subseries. Contents include correspondence, invoices, quotes, price lists, ads, fliers, agreements, reports, and ephemera.

Patch Products, a company with which Mayfair Games, Inc. contracted to produce many games, also operated as Product Sales International, Inc. (PSI); see related materials in box 196, folder 3. (As of 2016, the company name is PlayMonster.)

Note that some vendor reference materials including kits, samples, and catalogs have been transferred to the library for companies including: Bawden Printing, nc., C.W. Fifield Co., Inc., Chicago Press Corporation, China Sources, Clik!Case, Wordright Enterprises, Inc., Crown Roll Leaf, Inc., Dixon Ticonderoga Company, Don Scott Associates, Inc., ERTL Replicas, Folder Factory, Full Wisdom Enterprise Co., Ltd., Game Parts, Inc., Hampshire Specialty Products, Inc., Hinz Lithography Company, Holaxis Holography, Hoyle, LA Marketing, Inland, J.M.S. Graphics, Inc., KCS Industries, Inc., Keener Rubber Bands, Letterhead Press, Midwest Gold Stampers, Inc. (in Remax folder), Nederlandse Spellenfabriek B.V., Oriental Trading Company, Inc., Osborne Coinage, Regal Images, Stimpson, Summer Metal Products Mfg. Co., Ltd., Tank Shan, The Signery, Trade Winds, Triangle/Expercolor, Universal Elements, Universal Litho, Inc., Visual Horizons, Vultron Incorporated, Western Publishing Company, Inc., and Wicklander Printing.