Since 1945

We've been helping policyholders navigate the complex world of property and business interruption claims, values, and exposures.


Over 10 billion resolved in property & time element claims

Who We Help

In the days following the end of World War II, brother’s Louis and Al Ritter established a consulting practice in Chicago to assist policyholders in the management and quantification of commercial property and business interruption claims. The firm grew throughout the next two decades, becoming one of the largest regional practices quickly and effectively helping policyholders and attorneys…

Business Interruption Valuation

Insurance Claim Management & Quantification

Insurance Litigation Support

Asset Intel Modeling (AIM)

Contact Quantum Global Advisors

445 North LaSalle Drive Chicago, IL