The Thiokol company started making chemicals and ended up making rocket fuels, solid fuel motors, and launch vehicles. They infamously were responsible for the O-rings on the space shuttle and were a prime contractor on the Ares.
They also made skilifts and snowcats, which was spun off in 1978 and sold to John Delorean and eventually closed down in 2000.
At one point they were owned by the Morton Salt company as well, hence the name Morton Thiokol.
Until fairly recently the Brunswick Bowling and Billiards Company made bowling equipment, billiards tables, and… many of the most significant recreational boating brands in America, including Bayliner, Boston Whaler and Sealiner. They also own Mercury Marine and Freedom Boat Club. In 2015 they sold off the sporting goods department to focus on the boating segment.
Although they’ve divested many of their lines of business, Bombardier was once known for making snowmobiles, rail equipment, and airplanes.
The logos for both Mercedes and Mitsubishi are stylized airplane propellors.
As is BMW’s.
This I knew, but not Mercedes. But IIRC, BMW (Bayerische Motorenwerke) started out in the aeronautic business, while Mercedes (Daimler Benz) roots are in cars, Carl Benz being one of the first inventors of a practicable and functional car in 1885, long before motorized flight. But I neither know when the logo was introduced nor what it represents.
BMW’s logo is from the flag of Bavaria, although in the 1920s they did use it in an advertisement campaign that had the spinning propeller.
From Mercedes’s own website - the three-pointed star represents land, sea, and air - environments the company believed they would one day dominate with Mercedes-Benz engines.
“Mitsubishi” also, when very very loosely translated, means “three gemstones” or “three diamonds,” depending on whom you ask. The three bars of its symbol do superficially resemble gemstones.
You are correct, and I forgot about that. They owned Ken-L Ration in the ‘80s and ‘90s. One of my bosses when I worked at Quaker had previously worked in the pet food division, and she helped to create the cat treat category.
It’s been said that Columbia University is a real estate developer with a sideline in education 
The same can be said of many ski resorts.
(But their sideline is skiing, not education)
Not necessarily. Montana State University owns a ski resort, for instance.
As far as I know, MSU doesn’t own a ski area. Bridger Bowl is a community-owned non-profit. Did you have another ski area in mind?
But there are several college owned ski areas: Dartmouth Skiway, Middlebury Snowbowl, and apparently Mt Zion in Michigan. But none of them have the major commercial real estate developments that go hand in hand with major resorts. Not all ski areas have real estate developments, but most ski resorts have a major interest in selling condos.
My information might be out of date, then. When I was there, there was at least some sort of corporate connection between the university and Bridger Bowl.
The first microwave oven (RadarRange) was sold by a subsidiary of Raytheon, another defense contractor.
In the 90’s, I met a guy that worked for Siemens which he described as “a bank with really expensive hobbies”.
Around the same time, I remember Ericson announced that they were selling off idle real estate – to the tune of $1B.
Similar to Mitsubishi, Subaru (formerly Fuji Heavy Industries) were originally part of the Nakajima aircraft company before Japan’s defeat in WWII. They make everything from helicopters to cars.
The tire industry actually influenced Bridgestone to enter the golf business. The founder was a huge golfer, and decided to experiment to see if tire rubber could improve the performance of golf balls.
Mitsubishi also built the torpedos used in the sneak attack at Pearl Harbor in WWII.
Tesla was making a large chunk of their profits from selling carbon credits, somewhere between 30% and 40% of overall profits at times. The US market is now gone, but there are still European markets.
It’s not far from making EVs, but it surprising how much money they made from them.