Reform UK announced its two new Scottish recruits only hours after Mr Farage wrote to Tory county councillors in England urging them to jump ship.
A party spokesman said: “In less than 24 hours we have seen three councillors join Reform, both leaving the Tory party. The latest two today just go to show that the Tory brand is broken not just in England but across the United Kingdom.
“Scotland has been failed by Labour and the SNP for decades and the Scottish Tories have been utterly dismal in their opposition.
“This is just the start for Reform, we plan to campaign hard in the run-up to the Holyrood election in 2026 and win seats right across Scotland.”
Mr Findlater has represented the Troup ward for 12 years and joined the Tories in 2016. The former British Army veteran served eight operational tours of duty in Northern Ireland, Bosnia and Kosovo.
He took over as council leader shortly before the 2022 local authority elections but was ousted in May last year. When he quit the party earlier this month, he refused to be drawn on his reasons.
Party insiders said he was unhappy at the treatment of David Duguid, who was controversially replaced by Douglas Ross as the general election candidate for Aberdeenshire North and Moray East.
The Scottish Tory leader lost the seat to the SNP and Mr Duguid, the incumbent MP, has since insisted he would have won it from his hospital bed despite being seriously ill.
However, Mr Findlater did not respond to a query from the Telegraph about whether this had contributed to his switch to Reform.
‘Very weak’
Ms Carnie was elected as a Tory councillor in 2022 but she later resigned from the party and sat as an independent. She currently sits on the council’s education and children’s services committee.
A Scottish Conservative spokesman said: “We are focused on holding the failing SNP and Labour governments to account.”
The announcement came after Mr Findlay signed a letter from trade union Unite urging the UK Government to reverse its decision to end the winter fuel payment for millions of pensioners.
Urging Anas Sarwar to follow suit, he said the Scottish Labour leader risked looking “very weak” if he failed to stand up to do so.
SNP ministers have replicated the cut to the winter fuel payment in Scotland, arguing that a cut in their funding by the Treasury meant they had no choice.