Looking at the website [0], this is a joke right? Flashy marketing business speak sales site with charts, but what does the product look like?

[0] http://low-code.com

You're kidding, right ? that's a really low effort search :)

Anyway, i gave a link above, with good info, including names of leading companies. Here's one:

https://www.mendix.com/

Also , outsystems and bubble.is, oracle Apex