OK, let's be boring and simplistic.
I'd do a Replace All and replace ", Inc" with " ### Inc" ... that's comma space Inc with space hash hash hash space Inc. The reason for the spaces and the hashes is that it's unlikely that you'll have that combination in the live data.
Then you do your text to columns with your comma delimiter.
Finally, you can do a Replace All and replace " ### " with ", " ... that's space hash hash hash space with comma space ... and you should be back where you started with regards to the company name.
If this is a regular task, you could (macros) record the Replace Alls and the Text to Columns as you undertake them. See the code below.
There were 84", Inc"s in the sample provided (in column K)
Regards
You'd need to repeat the initial Replace All piece of code for any other variations like ", LLC"
So, repeat the block of code but change:
To:
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