Which organization provides statistics and other valuable services for insurance companies?

The Association of British Insurers (ABI) is the correct answer because it plays a pivotal role in representing and serving the interests of the insurance industry in the UK. The ABI provides extensive statistical data that helps insurance companies understand market trends, assess risk, and develop their strategies accordingly. Additionally, the organization offers research and analysis on various aspects of the insurance market, which are invaluable for decision-making within member companies.

While the British Insurance Brokers' Association focuses primarily on supporting insurance brokers and promoting their interests, it does not serve the broader statistical and analytical needs of the entire insurance industry. The Chartered Insurance Institute is an educational body that offers professional qualifications and training for individuals within the insurance sector, rather than providing industry-wide statistics and services. The Treasury, as a government department, is involved in fiscal policy and economic regulation but does not specifically cater to the statistical needs of insurance companies.

Thus, the ABI’s comprehensive support and specialized statistics make it the key organization for this purpose.