InsurPac is the Political Action Committee of the Independent Insurance Agents & Brokers of America (IIABA). It represents the unified political voice of IIABA's 22,000-member agencies and 300,000 agents and brokers nationwide. It is one of the largest property-casualty insurance industry PACs in the country, and is one of the primary reasons the Big "I" is routinely rated among the most successful lobbying groups in Washington, DC. InsurPac raises funds for contributions to candidates for national office on behalf of independent agents. Contributions to InsurPac are voluntary and payment must be by personal check, credit card, or non-incorporated agency check.