Like the unique/identifiable circular icon, which can be used when we might want a standalone icon without all the text (e.g. I’ve seen such circular icons used in miniature as a bullet point symbol for marketing materials, pitches etc.). But I d prefer a less artistic, more linear “T” in the circle (more like T in “Touchstone”); this one could be mistaken for an “I” or “L”.
As to #3 Make “LLC” gray--maybe a little darker gray? Or another color? Maybe Add “L” in the box (in gray, and smaller size than “TG”?), since we tend to abbreviate name to TGL