The report came via Drew Ryun from Keep The Promise PAC.
"He is one of the top five courted GOP donors," Ryun told CNN. "For us to land him is a good shot in the arm for Ted, and it really sets the stage going into Iowa."
"I'm very, very happy," Cleveland told Illinois Review. "I brought Senator Cruz to meet Mr. Uihlein last year, and he was impressed by the senator's abilities and commitment to the conservative cause. It's clear that Senator Cruz has become the consensus candidate for conservatives."
Earlier this year, Uihlein and his wife gave $2.5 Million to Wisconsin Governor Scott Walker's presidential bid. Walker dropped out in September.
Uihlein, who owns the U-Line shipping and packaging company, also is financially involved in Illinois state politics. Last week, he gave $2.5 million to an independent expenditure committee run by radio talk show host and former gubernatorial candidate Dan Proft.