UK tech companies have indicated a loss of momentum in the final quarter of 2018, with business activity expanding at its slowest pace since Q4 2015, according to KPMG UK Tech Monitor Index, a new survey by KPMG.

The survey showed that the tech sector experienced a difficult end to 2018, as business activity growth eased to its weakest for three years and new work remained subdued. Global trade frictions and Brexit-related uncertainty were widely reported to have acted as a headwind to client spending.

However, while political uncertainty and global trade frictions have dented client confidence, buoyant staff hiring and capital spending plans are still in place for 2019, according to the survey.

Nevertheless, tech companies also signalled the sharpest fall in backlogs of work for seven years, suggesting a lack of new work to replace completed projects at the end of 2018.

Some tech companies have responded to subdued business investment across the wider economy by putting the brakes on staff hiring at the end of last year. While employment numbers continued to rise overall in Q4, the rate of growth continued to soften from a survey-record high seen at the start of 2018.

Looking ahead to 2019, there are positive signs in the latest report. While tech firms report that projections for demand growth have softened, they remain highly upbeat about their capital expenditure plans.

A strong record of R&D spending continues to drive confidence regarding new product launches, according to survey respondents. Some suggest that a competitive boost from the weak pound will help achieve new export sales.

Tech businesses appear set to remain a strong engine of job creation. Almost half of the survey panel expect to boost workforce numbers, while less than one-in-ten forecast a fall.

Tech sector employment plans are far stronger than that reported by the UK private sector as a whole, which are now the lowest since Q1 2013.

Bernard Brown, vice chair at KPMG UK, said: “Our survey reveals that political uncertainty has dented client confidence contributing to a slowdown in growth at the end of last year. But, buoyant staff hiring and capital expenditure plans are still in place for 2019.

“This confidence is reflected in the statistic that almost 50% of UK tech firms intend to add jobs over the next year, whilst many traditional manufacturers are considering moving jobs offshore.

“This demonstrates the strength and resilience of the UK tech sector in the new digital economy.”