Marsh is a global leader in insurance broking and risk management solutions, with over 35,000 colleagues operating in more than 130 countries. Marsh is a business of Marsh & McLennan Companies, the leading global professional services firm in the areas of risk, strategy and people. With an annual revenue approaching US$17 billion and 76,000 colleagues worldwide, MMC helps clients navigate an increasingly dynamic and complex environment through four market-leading businesses.

Marsh uses a team approach to address its clients’ risk management and insurance needs. Each client relationship is coordinated by a client executive, who draws from its many industry specialties and risk specialties to assemble the resources to analyse, measure, and help manage multiple risks.

The main purpose of this project is to create a new tool for the company: The Real Estate Tool, that will replace three existing applications: the French Patrimoine application, the Marsh UK MPS (Marsh Property System) application and the JLT UK iRealEstate application. Some of these applications are too old (built around 20 years ago) based on outdated technologies, such as Oracle Forms that are not maintained by the provider anymore.

The real estate department needed a reliable tool in order to address their work/tasks properly. This new client facing application is key to address the real estate regional market in the context of RFPs.



DCSL GuideSmiths implemented a solution that includes a microservices architecture in NodeJS relaying on RabbitMQ messages communication.

The system also communicates with the Marsh Eurosys application through a Spazio file transfer tool to obtain business data from other applications that are actually within Marsh’s business processes. In future, those applications will be replaced by MRE.



The new system replaces several obsolete legacy applications, and has improved efficiency for the Marsh Real Estate department.

Marsh now have a client facing tool to manage their real estate movement during the year and the implementation of Marsh Real Estate also allows for incremental growth of Real Estate Revenues and clients retention through an improvement in user experience.