Is SEGA as successful as Nintendo for example?

I've noticed that Sega offer their games to other consoles because they no longer have proper consoles. My brother said Sega Produces No Consoles More Because the competitors would be too big.

Nintendo is more successful.

Sega is also successful.

Googling for 5 seconds…

https://de.wikipedia.org/.../wiki/Sega

https://de.wikipedia.org/...Erl%C3%B6s" class="text-primary">https://de.wikipedia.org/...Erl%C3%B6s approx. 66.4 billion https://de.wikipedia.org/...g/wiki/Yen" class="text-primary">https://de.wikipedia.org/...g/wiki/Yen (2012)

https://de.wikipedia.org/...i/Nintendo

https://de.wikipedia.org/wiki/Erl%C3%B6s 57420 billion https://de.wikipedia.org/wiki/Yen (4.35 billion euro) (2014)

Or how exactly do you mean that? It's all you need on Wikipedia, so what's the question?