Two former CFMEU officials have been sentenced to jail after admitting corruption by accepting thousands of dollars in bribes.

Darren Greenfield, 60, and his son Michael, 40, accepted wads of cash, in some cases literally under the table, from a building company for preferential treatment from the union and access to contracts.

Judge Leonie Flannery called the breach of trust of both senior union officials "egregious" during a sentence at Sydney's Central District Court on Friday.

"The offenders used the influence of the union for their own personal benefit rather than for the benefit of its members," she said.

She accepted that the elder Greenfield who was the NSW branch secretary of the CFMEU did not seek the bribes, but rather they came to him and he accepted the payments in a momen

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