This biggest growth in the number of jobs was in accounting and finance, with a 15% jump, according to research from recruitment consultancy Robert Walters.
Tax vacancies grew 14%, available supply chain and procurement jobs increased 13% and legal jobs jumped 12%.
The across the board rise is despite the ongoing uncertainty for businesses around Brexit.
“Supply chain and procurement professionals have been highly sought after as employers explore how they can access new markets and establish efficient supply chain processes following Britain’s departure from the EU,’ said Chris Hickey, CEO of Robert Walters UK, Middle East and Africa.
“High calibre tax specialists have also been in high demand.
“For many businesses, developing and implementing transparent tax strategies is a high priority, particularly in light of the Panama Papers incident earlier this year,” Hickey added.
In August, professional services firms saw growth of 8% compared to the previous quarter.