"The Chancellor should lay foundations allowing firms to navigate a more uncertain economic outlook, invest for the future and get all regions firing on all cylinders," the CBI wrote in a statement.
The lobbyist group, which bills itself as UK firms’ voice in talks with policymakers, said the government should stimulate confidence and investment as Britain prepares to initiate EU divorce process.
"With interest rates at rock bottom, now is the time for the UK to put serious effort into improving our creaking infrastructure. We would like to see £6 billion more spent each year on public investment," CBI chief Carolyn Fairbairn said.
Fairbairn also suggested enhancing research and development credits by 50 percent to embolden firms that research new products in the country to maintain its leading role on global business innovation.
The CBI stressed that, although the UK economy had showed resilience in the months following the June 23 referendum to quit the European Union, economic uncertainty continued to weigh on business confidence.