The capital’s specialist trusts have seen significant increases in their private income over the past year.

Annual accounts and full-year finance reports show four London specialists earned £181m from private patient income in 2016-17, up from £160.3m the previous year.

The highest earner was Royal Marsden Foundation Trust, a cancer specialist, which saw its private patient income go from £83m in 2015-16 to £92.3m in 2016-17.

Great Ormond Street Hospital for Children FT saw the biggest overall increase year on year, going from £47.9m to £55.1m.

Moorfields Eye Hospital FT and the Royal National Orthopaedic Hospital Trust also saw increases.

Moorfields’ private income went from £23m to £26.8m, and RNOH saw an increase of £400,000 to £6.8m.

Figures for the 2016-17 performance of the Royal Brompton and Harefield FT are not yet available.

Royal Marsden has long enjoyed a significant private income, driven in large part by international private patients, and has the largest proportion of its income come through non-NHS patients of any English hospital trust. Private patient income is nearly a third of its total.

GOSH’s proportion of private work is closer to one seventh but both hospitals enjoy the support of significant charitable arms.

RNOH runs a small unit in London’s Harley Street district – heart of the UK’s private medical industry – as does Royal Brompton.

Royal Brompton and Moorfields are also both involved in hospital developments in the Middle East.

The major Shelford Group trusts in London – University College London Hospitals FT, Imperical College Healthcare Trust, King’s Colege Hospital FT and Guy’s and St Thomas’ FT – also have significant private patient income.

The annual accounts for 2016-17 are not due to be published until the end of July.