Several top U.K. firms are operating with high levels of debt and little to no cash on their balance sheet putting them in a perilous position for the months ahead, according to an analysis by accountancy firm Smith & Williamson.

The preliminary figures, which will form part of the auditor’s report with Legal Week on the state of the top 50 U.K. LLP accounts, show almost half had less than £10 million of cash on their balance sheet as of April 2019.