Risk advisory Marsh has recorded first-quarter revenue of $US7.6 billion ($10.6 billion), up 8% on a year earlier.

However, operating income fell 12% to $US1.8 billion – including a $US425 million ($594 million) charge related to Greensill litigation – and net income dropped to $US1.1 billion ($1.5 billion) from $US1.3 billion ($1.8 billion).

Revenue from the risk and insurance services unit grew 6% to $US5.1 billion ($7.1 billion).

Marsh Risk contributed $US3.7 billion ($5.1 billion) and reinsurance broker Guy Carpenter chipped in $US1.2 billion ($1.67 billion).

“We had a solid start to the year, and I am pleased with our execution in a dynamic and challenging environment,” president and CEO John Doyle said.