No10 has nominated five Tory MPs to Parliament's powerful Intelligence and Security Committee (ISC).
Former minister Chris Grayling is expected to be appointed as its chair.
The committee - which is due to publish a delayed report on alleged Russian interference in UK politics - hasn't met since the 2019 election.
Opposition parties have previously accused the government of trying to escape scrutiny by delaying the committee's formation.
MPs will vote next week to approve the government's appointments, which also include two Labour MPs and one SNP Member. A member of the House of Lords will also be nominated.
Our political correspondent Nick Eardley says the Conservative members put forward by Downing Street are Chris Grayling, John Hayes, Julian Lewis, Mark Pritchard, and Theresa Villiers.
The Labour MPs on the committee are set to be Kevan Jones and Dame Diana Johnson, and the SNP will have one representative - Stewart Hosie.
The Conservative majority will mean Tory MPs can pick the chair.
If MPs approve the list, questions could be asked about the committee's independence and ability to scrutinise government decisions.
The ISC oversees the UK's intelligence community, but it has not met for well over six months - the longest hiatus since it was established in 1994.
Eight months after it was completed, the report into alleged Russian interference in the UK remains unpublished.
The results of the inquiry were passed to Boris Johnson in October last year. The inquiry began in November 2017.
A government spokesman said Boris Johnson approved the report for publication in December 2019.
But it was up to the committee, whose previous members investigated and wrote the report, to publish it.
This process has been controversial and lengthy.
Opposition parties have regularly complained about how long it has taken to establish the committee.
They sent their nominations months ago and believe No 10 has been stalling.
Even some Conservatives have been frustrated about the delays and confusion about who will and won't be on it.
It's even been claimed some were threatened with removal from the Conservative list for disloyalty.
But now - seven months after the election - the committee should be confirmed early next week.
I hear from sources that former transport secretary Chris Grayling is the most likely chair, but some are very opposed to him getting the job.
This all means the Russia Report can be published soon. No 10 said this morning encouraged the committee to do so as soon as possible.
On Wednesday, MPs on the Petitions Committee called on the PM to take action after 100,000 people signed a petition on the issue.
The committee chairwoman Catherine McKinnell urged Mr Johnson to "expedite the establishment" of the Intelligence and Security Committee to enable the report's publication.
Liberal Democrat MP Wera Hobhouse said the delayed report must be published "before the summer recess" parliamentary break (22 July) so MPs can scrutinise it.
"A failure to do so would damage the UK's standing in the world and continue to raise further questions about the Conservative Party's deep connections to Russian oligarchs," she said.