I think you meant "General Fusion."General Atomics
I have heard LM is not a contender. Just what I have "heard," and since LM's efforts are darker than Tri-Alpha I am unsure it should be on a list anymore.
I think as the different dark horses make announcements money will start jumping; the worldwide rewards are truly Godzilla sized, a VC's Google dream. It is encouraging that the Slow-n-Dumb Stream News Media has finally started to catch on that the leviathan gubermant projects are not the end all last hope for mankind. I wonder what Elon will do once GF gets its full size prototype VC funds end of this year? That should put the wind up the skirts of the green solar market cronies.
Full scale project cash, by the way, is the true announcement that will catch my attention for any of these dark horses.