As already be said, maybe the Steak 'n Shake case could help, I look into the company and I don't think that LN is an option for them, the business seems to use the fiat rails as a moat.

With a LN wallet on both end (consumer/provider) the company will be obsolete.

AskSN

I work at a financial company - how can I convince them to onboard Lightning?

As already be said, maybe the Steak 'n Shake case could help, I look into the company and I don't think that LN is an option for them, the business seems to use the fiat rails as a moat.

Are they already using bitcoin?

With a LN wallet on both end (consumer/provider) the company will be obsolete.