I think he did awhile ago, but got it back, as Worthington Industries has been heavily used in a few Austen stories.
T'Challa is the King of Wakanda, and thus principal stock holder in many of their companies, and very, very rich. At one point he took over Stark Enterprises.
Nightthrasher owns a company that is a subsidary of Stark Enterprises.
Daniel Rand owns the Rand Corporation, but I think that was bought up by Oracle, which was in turn bought up by Stark.
Namor is also very rich, as the King of Atlantis.
Dr. Doom back when he was the monarch of Latveria.
In 4 reed richards and his family were sqaundered out of their cash by a crooked accountant.
That's MK continuity, in regular Marvel universe they're still rich. Also, in that storyline they weren't the only ones hit, Hammerhead was hit pretty bad, and Stark to a lesser degree.
From what I saw of him in JLU he talked like not such a rich guy...
JLU isn't exactly an in continuity bible of all things DC. Ollie's operation used to be very similar to Bruce's. An arrow cave, arrow mobile, sidekick, etc.