Yep - third party code reviews for compliance or security purposes are not unheard of. The "we want to see how your algorithms made their decisions" justificat

Yep - third party code reviews for compliance or security purposes are not unheard of. The "we want to see how your algorithms made their decisions" justification is a little weird, since that is effectively your secret sauce and just math equations. Are they worried you're joining in illegally- or unethically-obtained data in making your recommendations? Large enterprise companies have brand reputations that they factor into vendor decisions, and they may not trust you as a startup just yet.