The nationwide poll surveyed 1,771 companies and 3,043 individuals, revealing widespread concern across both the private sector and the public, reports the Bangkok Post.
Among the public, 77% of respondents said corruption among political parties and politicians is one of the country’s most pressing issues, said Sauwanee Thairungroj, adviser to the University Council of the University of the Thai Chamber of Commerce.
The results come weeks before Thais head to the polls for a general election on Feb 8, where corruption has emerged as a central theme in campaign debates.
"Corruption undermines the country’s development and long-term competitiveness," said Poj Aramwattananont, chairman of the Thai Chamber of Commerce and head of the JSCCIB.
The survey also found 71% of businesses believe corruption is tied to transnational crime, posing risks to national security.
Respondents expressed frustration with three types of politicians: ‘grey ministers’, referring to those who rise to power despite questionable backgrounds; those who fail to keep promises; and politicians entangled in conflicts of interest.
In response, 66% of companies want the business sector to take the lead in tackling corruption, with 42% urging the JSCCIB and non-governmental organisations to spearhead reforms.
The committee said it will compile recommendations from both businesses and civic groups into policy proposals for the next government.
The initiative is part of the ‘Zero Corruption: JSCCIB and Allies Will Not Tolerate It’ campaign, aimed at restoring investor confidence and building a transparent, competitive economy.
Kriengkrai Thiennukul, chairman of the Federation of Thai Industries and a JSCCIB member, warned that corruption has become a "structural cost" weighing down businesses already struggling with sluggish growth.
"Thailand’s economy in 2026 is expected to expand by only 1.5-1.6%, the lowest in Southeast Asia," he said.
"Weak competitiveness could hit the export sector, a vital engine of the economy."