Lawrence Koresko draws on more than two decades of financial and insurance brokerage experience to lead INSMAX Insurance Brokerage, located in the Philadelphia suburb of Collegeville. His responsibilities for the firm range from broker and client education to business development and employee growth. Under his supervision, the firm aids insurance carriers with services such as product distribution and application processing. Lawrence Koresko’s duties also involve working with a diverse range of insurance agencies, accountants, financial advisors, attorneys, and captive and independent insurance agents.

Furthermore, Larry Koresko’s career in insurance brokerage involves speaking at numerous continuing education seminars for Certified Public Accountants, Certified Financial Planners, and insurance brokers. He belongs to such insurance and finance organizations as the Association for Advanced Life Underwriting and the National Association of Independent Life Brokerage Agencies. In addition, Larry Koresko supports the National Association of Independent Life Brokerage Agencies.

A resident of Philadelphia, Lawrence Koresko maintains an interest in motorcycling, golfing, and swimming in his spare time. He also reading a variety of material, such as Thoughts on the Business of Life from Forbes and Frank Worsley’s Shackleton's Boat Journey.