Also in 1626, the support group known as the Feoffees for Impropriations was set up, and Sibbes was a founding member. (It built on an informal grouping dating back to 1613). It was closely linked to St Antholin, Budge Row, for its seven years of existence: it was shut down in 1633. With others, he worked to fund and provide platforms for preachers. He was one of four ministers in the original feoffees, the other members being chosen as four lawyers and four laymen.