Company
Antic
Antic was the name of a home computer magazine devoted to the Atari 8-bit computer line (Atari 400/800 and compatibles). It took its name from the ANTIC chip, which produced the Atari line's graphics. [1]
Apple Inc.
Apple Inc. (NASDAQ: AAPL; formerly Apple Computer, Inc.) is an American multinational corporation that designs and markets consumer electronics, computer software, and personal computers - Macintosh line of computers, the iPod, the iPhone and the iPad. It's co-founder Steve Jobs worked at Atari briefly in 1974, working as an technician. It was said that Jobs had the other Apple co-founder Steve Wozniak created the Breakout circuit board for Atari [2]. The early Macintosh was direct competitor of Atari in the business sector. There are many commercial depicting this [3][4]. The Atari ST is also able to emulate an Macintosh faster and has a larger screen that the original Mac 128K by using a Spectre GCR
Branch Always
Branch Always Software was founded by Derek Mihocka. The company now develops virtual machines products for MS-DOS, Windows, Mac OS X, and Linux platforms - Gemulator, SoftMac, and Fusion PC - deliver extremely fast emulation of classic Apple Macintosh and Atari ST computers. During the Atari days, he developed TOS loaders and software speeder for the Atari ST.
Gadgets by Small
Brief write up of Gadgets by Small can be found here.