Earth-shatering vibrations

Me: I need a trumpet, a xylophone, full drum kit, an electric guitar, a full PA system and a grand piano for my jazz show

Yamaha: I got you

Me: I also need a motorcycle to get there and a set of golf clubs for Sunday

Yamaha: I gotchu there too

Hold up before you place the order! I need train carriages, a supercomputer, radiotherapy equipment, nuclear power plant, aircon, self propelled artillery and an escalator. Don't ask me why.

Samsung though: phones, tanks, healthcare equipment

Me: I need a flute for my orchestra performance
Yamaha: No problem, here's our 800W Series.
Me: You wouldn't happen to know where I can
get a heavy 600 cc sport bike with the stop speed of 260km would you?
Yamaha: You're not gonna believe this

This reminds me of around 2000, when I had a Daewoo television, and then my mind was blown one day when I saw a Daewoo car. Who makes televisions and cars? Daewoo apparently.

Mitsubishi has entered the chat.

Me: Hmm, about time I bought a phone

Siemens: I gotchu

Me: a laptop would be nice to apply for jobs

Siemens: Gotchu there too

Me: Just got a City Planner job, wonder who I can buy some trains from

Siemens: Gotchu again bro

Me: Nuclear power plant to power the trains?

Siemens: We don't sell those anymore, we've gotchu with steam and solar power plants though

Me: Just bought a house, need some kitchen appliances...

Siemens: Gotchu bro

Brother (the printer company), makes world-class sewing machines. Home use and heavy commercial.

Me: I need to get rid of the whole Uchiha clan

Hitachi:

The record player I grew up with is a freaking Mitsubishi

You can do similar with mitsubishi, yamaha, bugatti, samsung (especially samsung. They make a ton of things. Ships, phones, hospital equipment, clothing and you can even live at their hotel

https://en.m.wikipedia.org/wiki/Hotel_Shilla )

These weird combinations look fun but they're generally the result of having conglomerates, companies that have gobbled up a bunch of smaller, unrelated companies.

Conglomerates are tricky to pull off because managing a lot of disparate business lines. A CEO who knows all about how to market construction equipment is likely to miss that one of their other products became an iconic sex toy years ago. The big problem is that more focused companies can typically outmaneuver you in their area of focus.

Theoretically, there might be synergies that make your company more effective but normally, conglomeration is drag on the risk-adjusted rate of return on your company. It's much easier to pull off when your government has strong protectionist policies or if there are officials you can bribe to keep out the competition.

Why would a company do something that's generally bad for the company? It's generally good for the CEO. A CEO often has a very concentrated investment portfolio. Changes in the value of the company they're running can have a huge impact on their personal wealth. Conglomeration allows a single company to be a diversified asset. It does it in a way that's objectively worse for shareholders but better for the CEO.