SSI, founded in Boston in 1966, evolved into a full-service real estate advisor company and merged with JLL in 2006. SSI continues its principal investment arm legacy on behalf of JLL senior management, leveraging JLL’s global reach and platform, while maintaining its independence in investment decision making.
As a division of JLL, one of the largest Global Real Estate Advisors, Spaulding & Slye benefits from unique access to extensive information and off-market investment opportunities to create value and generate superior returns.

Our team is truly integrated, working together across service lines to understand your business, bring substantial savings, and build the kind of trust you can depend on, year after year.
About JLL
As a member of the Fortune 500, JLL is a global professional services and investment management firm specializing in real estate. JLL’s vision is to reimagine the world of real estate, creating rewarding opportunities and amazing spaces where people can achieve their ambitions.
In doing so, we will build a better tomorrow for our clients, our people and our communities. The company’s expert teams provide integrated services to clients seeking increased value by owning, occupying, developing or investing in real estate. More than 93,000 employees serve clients in 80 countries from 300 corporate offices.