[fredrikholm]

OP questioned Rackets use in industry, not CL.

AFAIK, the only (more known) uses of Racket is as a scripting language for Naughty Dogs PS3-era games, and it was made to make Arc (which runs HN).

[pjmlp]

I got it the other way around, oops.

[p_l]

Not even exactly the scripting language, more so that they used PLT Scheme (now Racket) for writing tooling, including compiler into various scheme variants they used as internal scripting in games.