British Deputy Prime Minister Dominic Raab announced his resignation from Rishi Sunak's Conservative government on Friday morning.
Raab said he was quitting because he had promised to step down if the inquiry "made any finding of bullying whatsoever."
"I believe it is important to keep my word," he said.
However, Raab also took issue with the inquiry's findings.
"Whilst I feel duty bound to accept the outcome of the inquiry, it dismissed all but two of the claims leveled against me," he said. "I also believe that its two adverse findings are flawed and set a dangerous precedent for the conduct of good government."
Review pending since November allegations
Raab had requested the review in November following formal complaints from civil servants.
Raab had previously said he did not believe himself guilty of workplace bullying but that he would not apologize for what he called a "forthright" approach to his work.
Prime Minister Rishi Sunak's office on Thursday confirmed receipt of the inquiry's findings on Raab, and had said it was considering its next step. The opposition Labour Party had accused Sunak of dithering on the issue.
Raab criticizes as-yet-unpublished findings
Raab's resignation letter made clear he questioned the extent to which the report, which has not been made public, incriminated him.
He said both that government ministers "must be able to exercise direct oversight with respect to senior officials over critical negotiations conducted on behalf of the British people," and that they "must be able to give direct critical feedback on briefings and submissions to senior officials, in order to set the standards and drive the reform the public expect of us."
"In setting the threshhold for bullying so low, this inquiry has set a dangerous precedent," Raab said. "It will encourage spurious complaints against Ministers, and have a chilling effect on those driving change on behalf of your government — and ultimately the British people."
According to Raab's account of the probe against him, investigator Adam Tolley "concluded that I had not once, in four and a half years, sworn or shouted at anyone, let alone thrown anything or otherwise physically intimidated anyone, nor sought to belittle anyone."
Raab said he intended to continue supporting Prime Minister Sunak's government from the back benches.
Third misconduct Cabinet scalp in a matter of months
Raab becomes the third member of Sunak's Cabinet to go since November.
Another senior minister, Gavin Williamson, was forced to resign in November, also after bullying allegations.
And in January, the prime minister sacked Conservative Party chair Nadhim Zahawi after he was found to have broken the ministerial code by failing to disclose that he was facing a tax dispute worth millions.
Sunak himself faces an impropriety investigation, over whether he properly declared his wife's shareholding in a childcare company which stands to benefit from new government policy.
The 42-year-old of Punjabi descent, Britain's first non-white prime minister, is trying to right the Conservative ship after Boris Johnson's scandal-ridden departure, and Liz Truss' noteworthy but short-lived tenure in the few weeks thereafter.
Although the party has recovered some ground against Labour from its lowest point in the polls around October of last year, it is expected to fare poorly in local elections in two weeks' time.
The government is also grappling with a series of strikes, often in the public sector, over inflation and pay that have been causing disruption.
