Your graphic shows the Senate Conservative Fund at about $316,000. How strange, as Trump keeps saying no one in the Senate likes Cruz...
There are possibly about five law firms in your list. They are probably hoping for a Constitutional Conservative like Cruz to win and support the Constitution and nominate valid people to SCOTUS, unlike the present POTUS.
Those are law AND LOBBYING firms. They could care less about having Constitutional Conservatives on the Court. Actually, that thought is just funny. They are a major part of the DC establishment, anxious to preserve the status quo in DC. You might want to check out their websites to see who their clients are.
The Senate Conservative Fund is Ken Cucinnelli, who was the VA AG twice, and lost the VA governor’s race to Terry McAuliffe. Cucinnelli has endorsed Cruz. He is not now, nor has he ever been, a U.S. Senator, or even a candidate for the U.S. Senate. The “Senate Conservative Fund” is a mechanism to raise money, it is NOT comprised of U.S. Senators. So far, the only U.S. Senators who’ve endorsed Cruz are Lee and possibly Graham.