During this period, three party leaders served as premier of British Columbia: Richard McBride (1903–1915), William John Bowser (1915–1916), and Simon Fraser Tolmie (1928–1933).

However, the party saw a resurgence under Rustad's leadership in the 2024 provincial election, winning the second-most seats in its best electoral performance in 72 years.

The Conservatives under McBride and his successor, William John Bowser, held power for 13 years until they were defeated by the Liberals in the 1916 election.

When Bowser died and the elections in Vancouver Centre and Victoria City were postponed, four Non-partisan and two Unionist candidates withdrew.

Members of the province's business community, who feared the growing strength of the democratic socialist CCF, urged the Liberals and Conservatives to form a wartime coalition government to ensure stability.

Maitland and Hart served throughout the remainder of World War II and continued their partnership past, running a joint ticket in the 1945 election and winning a majority government of 37 out of 48 seats.

Byron Johnson was appointed Premier a short time later, but the conflict strained relations between the two parties and leaders going forward, and caused internal divisions to open up within the Tories.

Bennett, who called for the Liberals and Tories to fuse into a single party; a second faction that supported the status-quo; and a third that wanted Anscomb to simply lead the PCs out of the coalition.

[6] In January 1952, the Liberals decided to dissolve the coalition, with Johnson summarily dismissing his PC ministers, including Anscomb, and continued forward as a minority government.

The assumption behind the change was that business-oriented voters would keep the democratic socialist party out of power through their secondary choices, regardless of the split between the former coalition partners.

However, the Social Credit League, led by Albertan Ernest George Hansell, won the most seats in the election, while the two former coalition partners fell far behind.

Bennett would take control of the Socreds, dropping the party's social credit monetary reform policy in favour of traditional and populist platforms.

However, the party was unable to gain traction during the collapse of the Socred government in the 1991 election and the subsequent re-alignment of BC politics.

The party ran only a handful of candidates between 1991 and 2005, as the pro-business voters of the province moved en masse to the BC Liberals.

[10] By the end of 2010, with former Newfoundland premier Brian Peckford acting as an advisor, the party had the support of 8% of voters according to opinion polls, had approximately 2,000 members—up from 300 in June of that year—and had constituency associations established in 45 of the province's 85 ridings.

[14] On March 26, 2012, Abbotsford South MLA John van Dongen announced that he was leaving the Liberals to join the Conservatives, providing the party with its first representative in the Legislative Assembly since 1986.

[16] van Dongen stated that he lacked confidence in Cummins' leadership and cited differences about the party's direction as reasons for leaving.

[19] However, stating that outstanding issues that led to his resignations were resolved, Brooks was re-elected as leader at a leadership convention held on September 17, 2016.

[22] In September 2017, following the party's annual general meeting, Scott Anderson, a Vernon city councillor, was appointed interim leader by a unanimous vote of the newly elected board.

Anderson oversaw the reformation of several defunct riding associations and an increase in membership, and took the party through the Kelowna West and Nanaimo by-elections.

In the June 2023 Vancouver-Mount Pleasant and Langford-Juan de Fuca by-elections, the Conservative candidates placed fourth and second, with 4.88% and 19.86% of the vote, respectively.

[45][46] The Conservatives ultimately won 44 of the 93 seats it contested, forming the official opposition and entering the Legislative Assembly for the first time since 1975.

[49] However, the Conservatives, especially in the 21st century, sought to offer a right-wing alternative, and with the breakdown of formerly successful centre-right coalitions have enjoyed renewed popularity.

[49][34][52] The party advocates for increased resource extraction with fewer environmental roadblocks, and calls to further develop the province's fossil fuel and lumber industries.

It seeks to eliminate the provincial carbon tax, roll back climate-friendly building codes, and consider nuclear power as an energy option.

[34][57] It also seeks to expand support for farmers by increasing local food processing capacity, and to bring in private auto insurance companies.

"[68] The party opposes BC's Sexual Orientation and Gender Identity (SOGI) education policies and safe injection sites for drug users.

[74][75][76] In the lead-up to the 2024 election, a leaked dossier of opposition research revealed support for conspiracy theories among several party candidates.

[77] The party dropped several candidates for spreading misinformation on vaccination and medical issues, including Stephen Malthouse, Jan Webb, and Rachael Weber.

[78][79][80] The party also dropped Damon Scrase for homophobic and racist comments, and Alexandra Wright after “careful consideration of various factors related to campaign performance and conduct”.