Kiambu has been rated as the second best county in the country in terms of ease of doing business.
According to World Bank's 2016 "Doing Business" report, Uasin Gishu County was rated as the best in terms of efficiency in issuance of licenses.
The Bretton Woods institution report revealed that it takes two days to process permits in the two counties, hence creates a suitable environment for start ups.
Kiambu Executive Committee Member in charge of Finance Mary Nguli, said the county has the right policies in place hence the exemplary performance.
"Lowering rates, fees and charges; responsiveness to investors needs; increased developments and improved service delivery are the main factors," she said.
Nguli said that Governor William Kabogo's administration has made the work easier by responding positively to investor needs and also by empowering youths through Biashara Fund.
Biashara Fund, launched in 2014, offers cheap loans to eligible youth groups seeking to start a business or that already operating a small enterprise in the county.
The County has also digitised county services which has sped up processing of requirements for investors to kick start businesses.
However, World Bank found that it is more difficult to obtain construction permits in Busia, Kiambu, Mombasa, Nairobi and Uasin Gishu.
"Building plan approval fees increased by more than 2.5 percentage points in Busia (Malaba), Kiambu (Thika) and Nairobi," the agency reports.