Most people only know customer-to-customer (C2C) and business-to-customer (B2C) software and websites. Those are the famous and popular ones, but business-to-business (B2B) is also pretty big. How big?
Even something boring and local like DATEV has almost 3 million organizations as customers and โฌ1,44 billion in annual revenue.
FedEx has โฌ90 billion in annual revenue and everyone who uses it comes into contact with its software. There's a whole chain of software between the sender and receiver of the package, and it all has to work seamlessly.
Same with Walmart, Toyota, Dubai Airport, Glencore, Tesla, Edeka, Carrefour, Harvard and University of Texas, Continental, Allianz, Asklepios, etc.
That's the sort of software I help build. You've probably never heard of it, but when it doesn't work properly, you'll hear about it on the news.