GRCA has its registered office at 51 rue Blanche, in the 9th arrondissement of Paris.
The address is no accident. The firm is located at the heart of the district that has concentrated, since the nineteenth century, the head offices of the insurance companies, the institutions of the profession and, without interruption, the authority responsible for their supervision.


At the heart of the insurance district
From rue Blanche, most of the Paris insurance market is within walking distance:
- the Autorité de contrôle prudentiel et de résolution (ACPR), the French prudential supervisor, on place de Budapest behind Saint-Lazare station, about ten minutes away;
- the two historic addresses of insurance supervision, 54 rue de Châteaudun and 61 rue Taitbout, less than ten minutes away;
- France Assureurs, the French insurance federation, on boulevard Haussmann, a quarter of an hour away;
- the head offices of Covéa, on rue Saint-Lazare, Generali France, on rue Pillet-Will, and Malakoff Humanis, on rue Laffitte;
- Saint-Lazare station and its transport hub, ten minutes away.
This proximity reflects the very nature of the firm. Born of experience in prudential supervision, GRCA works every day with insurance companies, mutual insurers and provident institutions, within the framework set by the Authority. Setting up a few hundred metres from its counterparts was the most natural choice.
The 9th arrondissement, historic insurance district
The Paris business district took shape in the nineteenth century across the 9th arrondissement and its neighbours: the Stock Exchange, housed in the Palais Brongniart from 1826, the Chaussée-d'Antin, which became the bankers' quarter under the Restoration and the July Monarchy, and then the whole area laid out by Haussmann around the Opéra and Saint-Lazare station, where the great deposit banks built their head offices.
Insurance companies followed the same pattern. Initially based near the stock exchange, they gradually moved towards the Chaussée-d’Antin, where they built their head offices from the Second Empire through to the 1930s. This concentration gave insurance a lasting place in the history of the 9th arrondissement.
The creation of La Défense in 1958, followed by the towers built by insurers in the 1970s, moved part of the industry's senior management westwards. The district did not lose its vocation: the professional federation, France Assureurs, has its offices on boulevard Haussmann, and several leading groups have kept or taken up an address in the 9th arrondissement.
Insurance supervision has never left the district
The supervisory authority has changed its name and status several times. It has never left the 9th arrondissement:
- at 54 rue de Châteaudun, the building housed the Insurance Directorate of the Ministry of Finance and then, under the Act of 31 December 1989, the Commission de contrôle des assurances (CCA); the Financial Security Act of 1 August 2003 turned it into the Commission de contrôle des assurances, des mutuelles et des institutions de prévoyance (CCAMIP), renamed the Autorité de contrôle des assurances et des mutuelles (ACAM) in 2005;
- at 61 rue Taitbout, where the ACAM moved in 2007, its merger with the Banking Commission gave rise in January 2010 to the Autorité de contrôle prudentiel (ACP), backed by the Banque de France, which became the Autorité de contrôle prudentiel et de résolution (ACPR) in 2013;
- on place de Budapest, behind Saint-Lazare station, the ACPR is now based about ten minutes' walk from rue Blanche.
From rue de Châteaudun to place de Budapest, supervision has moved a few hundred metres in a century. GRCA has set up within that same perimeter.