- 21st Century Entertainment 21st Century Entertainment 1 model
- All American Amusements A.A. Amusements 1987–1988 2 models
- A & A Design Group A & A Design Group 2004 1 model
- American Amusement & Mfg. Co., Inc. AAMCO, Inc. 1 model
- Abbott Specialties Corp. Abbott Specialties Corp. 1947 1 model
- A.B.C. Coin Machine Company A.B.C. Coin Machine Company 1932–1933 2 models
- A.B.T. Manufacturing Company A.B.T. Manufacturing Company 1931–1936 39 models
- Ace Manufacturing Company Ace Manufacturing Company 1932 1 model
- Ace Novelty Company Ace Novelty Company 1932–1933 5 models
- Achille and Chalvignac Achille and Chalvignac 1985 1 model
- Acme Coin Machine Manufacturing Company Acme Coin Machine Manufacturing Company 1948 1 model
- Acorn Vending Company Acorn Vending Company 1932 1 model
- Alfred Druschky ADEBE 1935 3 models
- Ad-Lee Company Ad-Lee 1932 2 models
- The Ad-Lee Company, Incorporated Ad-Lee 1932–1936 8 models
- ADP Automaten GmbH ADP Automaten 1 model
- Advance Amusement Co. Advance Amusement Co. 1935 1 model
- Advance Automatic Machine and Device Company Advance Automatic Machine and Device Company 1 model
- Advance Automatic Machine Company Advance Automatic Machine Company 1932 2 models
- Advertising Craft Ltd. Advertising Craft Ltd. 1 model
- Advertising Posters Company Advertising Posters Company 6 models
- Agamco, Inc. Agamco, Inc. 2 models
- A. G. Sebring Corporation A. G. Sebring Corporation 1949 1 model
- Aisch & Melchers KG Aisch & Melchers KG 1964 4 models
- A. J. Stephens and Company A. J. Stephens and Company 1932 6 models
- Alben Alben 1957–1964 17 models
- Alco Alco 1 model
- All American Games Corporation All American Games Corporation 1936 2 models
- Allied Amusement Company Allied Amusement Company 1934–1935 6 models
- Allied Leisure Industries, Incorporated Allied Leisure 1972–1979 19 models
- Allswell Manufacturing Company Allswell Manufacturing Company 1932 1 model
- Alvin G. and Company Alvin G. 1991–1994 13 models
- A. M. Amusement Games A. M. Amusement Games 1933–1934 4 models
- American Amusement Company American Amusement Company 1932–1946 3 models
- American Engineering Co. American Engineering Co. 1932 1 model
- American Games Engineering Co. American Games Engineering Co. 1932 1 model
- American Girl American Girl 2019 1 model
- American Home Entertainment, a division of Azrak-Hamway International, Inc. American Home Entertainment 1993 2 models
- American Mill and Manufacturing Company American Mill and Manufacturing Company 1931 1 model
- American Pinball Inc. American Pinball 2017–present 7 models
- American Sales Corporation American Sales Corporation 1932–1933 2 models
- American Scale Manufacturing Company American Scale Manufacturing Company 1933 1 model
- AMI s.p.a. A.M.I. 1975–1977 10 models
- Amusematic Corporation Amusematic Corporation 1946–1948 3 models
- Amusement Corporation of America Amusement Corporation of America 1932 1 model
- Amusement Enterprises Mfg. Co. Amusement Enterprises Mfg. Co. 1946 1 model
- Amusement Industries, Inc. Amusement Industries, Inc. 1 model
- Amusement Machine Corporation, Ltd. Amusement Machine Corporation, Ltd. 1931 1 model
- Amusement Machine Corporation of America, Ltd. Amusement Machine Corporation of America, Ltd. 1929 1 model
- A & M Vending Machine Company A & M Vending Machine Company 1932 3 models