Premium increases of up to 300% have forced risk managers to network harder, according to Association of Insurance and Risk Managers (Airmic) chairman Philip Thomas.
Thomas said the association had been inundated with inquiries since the 11 September attacks.
Difficulties in placing business had forced risk managers to network more, he added.
"The true value of present-day networking doesn't lie in the act of communication, but in the way the exchange of information is used to spread fresh risk management knowledge."
Thomas said visits to the Airmic website had doubled and attendance at meetings was noticeably higher.
Airmic has also created a Special Interest Groups (SIGs) division. Thomas said aviation and travel SIGs had held several meetings to cope with the level of inquiries.
He said membership has greatly increased since last year, with 75% of the companies in the FT100 now members.
