That we are aware of…

Apple
Steve Jobs and Steve Wozniak had withdrawn from Reed College and UC Berkeley respectively by 1975. Wozniak designed a video terminal that he could use to log on to the minicomputers at Call Computer. Alex Kamradt commissioned the design and sold a small number of them through his firm. Aside from their interest in up-to-date technology, the impetus for Jobs and Wozniak, also referred to collectively as “the two Steves”, seems to have had another source. In his essay From Satori to Silicon Valley (published 1986), cultural historian Theodore Roszak made the point that the Apple Computer emerged from within the West Coast counterculture and the need to produce print-outs, letter labels, and databases. Roszak offers a bit of background on the development of the two Steves’ prototype models.  – Wikipedia

Google
The Google first company was officially launched in 1998 by Larry Page and Sergey Brin to market Google Search, which has become the most used web-based search engine. Page and Brin, students at Stanford University in California, developed a search algorithm at first known as “BackRub” in 1996. The search engine soon proved successful and the expanding company moved several times, finally settling at Mountain View in 2003. This marked a phase of rapid growth, with the company making its initial public offering in 2004 and quickly becoming one of the world’s largest media companies. The company launched Google News in 2002, Gmail in 2004, Google Maps in 2005, Google Chrome in 2008, and the social network known as Google+ in 2011, in addition to many other products. In 2015, Google became the main subsidiary of the holding company Alphabet Inc. – Wikipedia

Amazon
In 1994, Jeff Bezos incorporated Amazon. In May 1997, the organization went public. The company began selling music and videos in 1998, at which time it began operations internationally by acquiring online sellers of books in United Kingdom and Germany. The following year, the organization also sold video games, consumer electronics, home-improvement items, software, games, and toys in addition to other items.  – Wikipedia

         Hat Tip:  @tooskinnymariah

Harley-Davidson
Harley-Davidson is the iconic American motorcycle manufacturer. Founded out of a small shed in 1903 by William S. Harley and brothers Arthur and Walter Davidson in Milwaukee, Wisconsin. The Motor Company produces traditional cruiser motorcycles utilizing air-cooled V-Twin engines. – MotoUSA

Disney
Disney was originally founded on October 16, 1923 by brothers Walt and Roy O. Disney as the Disney Brothers Cartoon Studio; it also operated under the names The Walt Disney Studio and Walt Disney Productions before officially changing its name to The Walt Disney Company in 1986. The company established itself as a leader in the American animation industry before diversifying into live-action film production, television, and theme parks.  – Wikipedia

Mattel
Harold “Matt” Matson and Elliot Handler founded Mattel in 1945. The company sold picture frames, and later dollhouse furniture. Matson sold his share to Handler due to poor health, and Handler’s wife Ruth took Matson’s role. In 1947, the company had its first hit toy, a ukulele called “Uke-A-Doodle”.

The company incorporated the next year in California. Mattel became the first year-round sponsor of the Mickey Mouse Club TV series in 1955. The Barbie doll debuted in 1959, becoming the company’s best-selling toy in history. In 1960, Mattel introduced Chatty Cathy, a talking doll revolutionizing the toy industry, which led to pull-string talking dolls and toys flooding the market throughout the 1960s and 1970s.  – Wikipedia