Insurance broker Marsh reported revenues of $2.6bn in the first half of 2011, up 11% on the $2.4bn it made in the first half of 2010.

Two percentage points of the 11% growth was attributed to currency impact, and 5 points to acquisitions, leaving organic growth of 4%.

In the second quarter alone, Marsh revenues grew 12% to $1.4bn from $1.2bn. Organic growth in the quarter was 5%.

The risk and insurance services division of Marsh & McLennan Companies (MMC), which comprises Marsh and reinsurance broker Guy Carpenter, made an operating profit of $739m in the first half of 2011, up 22% on the $605m it made in the same period last year.

The division's second quarter profit increased 38% to $356m (Q2 2010: $258m).

"We are very pleased with our performance in the first half of 2011. Our excellent second quarter performance successfully built on our strong first quarter results," MMC chief executive Brian Duperreault said in a statement.

MMC as a whole, which also includes the consulting operations of Mercer and Oliver Wyman, made a net profit of $607m for the first half of 2011, compared with a profit of $484m in the first half of 2010.