... the highest of the past decade.
A net balance (11.8%) of the companies surveyed reported an increase in their marketing budgets during the quarter, almost twice the 6.1% figure of the previous quarter, and almost equalling the levels seen in Q3 2014.
Overall growth for the 2014/15 budget year was the best recorded since 2004/05, with 21.8% of companies indicating that budgets had risen over the twelve-month period.
The highest upwards revisions to marketing budgets in Q1 2015 were made to online media, notching a net balance of plus 8.4%.
Events budgets were also revised higher, recording a net balance of 5.7%, as were direct marketing (5.5%) and main media advertising (2.9%).
Notes Paul Smith, senior economist at Markit Economics and author of the report: "While many commentators await to see what form Britain's post-election economic landscape takes, marketing executives seem to be shrugging off any uncertainty."
The report, commissioned by the Institute of Practitioners in Advertising is based on original data drawn from a panel of around 300 UK marketing professionals.
Read the original unabridged Institute of Practioners in Advertising report.