Allies of former Prime Minister Boris Johnson, including Nadine Dorries, Sir Jacob Rees-Mogg and Priti Patel could face suspension from Parliament.
The Privileges Committee found the MPs 'took it upon themselves to undermine procedures of the House of Commons' by criticising the panel's long-running Partygate inquiry.
The committee said MPs should consider whether their actions could be considered a contempt of Parliament and what further action to take.
The Parliamentary committee cross-examined allegations of Mr Johnson lying to and misleading MPs over the Partygate scandal during the coronavirus pandemic.
The committee ultimately would trigger the resignation of Mr Johnson from Parliament, in protest at a recommendation that he should face a lengthy suspension for misleading the Commons through denials of lockdown-busting parties within Downing Street.
Read more: First Partygate video exposes Tories drinking, dancing and laughing at Covid rules
The PA News Agency reports that his allies frequently lambasted the Privileges Committee, dubbing it a 'witch hunt' and a 'kangaroo court', with Mr Johnson found to be complicit in the campaign against the panel investigating him and his actions. Now, in a special report, the committee named some of those involved, condemning their actions.
It said: "Those Members did not choose to engage through any proper process such as the submission of letters or evidence to our inquiry, but by attacking the members of the committee, in order to influence their judgment."
Their ultimate aims were to 'influence the outcome of the inquiry', 'impede the work of the committee by inducing members to resign from it' and 'discredit the committee's conclusions if those conclusions were not what they wanted'. It also cited how they wanted to 'discredit the Committee as a whole'.
Other MPs quoted in the report include Mark Jenkinson, Sir Michael Fabricant, Brendan Clarke-Smith and Dame Andrea Jenkyns.
The report, continued: "The committee is particularly concerned about attacks mounted by experienced colleagues, including a serving minister of the Crown, a former leader of the House and a former secretary of state for digital, culture, media and sport."
The report also went on to detail how 'pressure was applied particularly to Conservative members of the committee', adding: "This had the clear intention to drive those members off the committee and so to frustrate the intention of the House that the inquiry should be carried out, or to prevent the inquiry coming to a conclusion which the critics did not want."
'Sustained attempts to undermine and challenge the impartiality' of the committee's Labour chairwoman, Harriet Harman were also made, alleges the Privileges Committee. It added: "This unprecedented and co-ordinated pressure did not affect the conduct or outcome of our inquiry.
"However, it had significant personal impact on individual members and raised significant security concerns."
The committee said it will be for the House of Commons to consider “what further action, if any, to take” in respect of the MPs named in the report.
The report is provisionally scheduled to be considered by MPs on July 10.
