Financière Dioclès

Financière Dioclès

Financière Dioclès opened in Paris in 2011 under founder Romarin Billong, an ESCP alumnus who moved from professional football into private banking. The firm was built to serve a limited number of affluent families and high-earning professionals seeking independent, coordinated wealth management. Billong’s own background, combined with relationships in the French wealth management network — including co-founder Pierre-Yves Lagarde of Imani Family Office — gave the firm its initial anchor. The firm advises across liquid portfolios, real estate, and private markets. Its investment strategy spans direct co-investments and SPVs, fund-of-funds commitments, and secondary/ special-situation positions. Geographically, the mandate covers Europe and North America. The advisory model is deliberately modular — clients can engage the team for wealth planning only, or for integrated asset management across multiple asset classes — and the firm acts as a central coordinator of external legal, tax, and banking specialists. Financière Dioclès operates from 45 avenue George V in the 8th arrondissement of Paris and has been recognized repeatedly by Décideurs Magazine in its rankings of independent multi-family offices (2014–2021). The practice remains lean; a recent career posting identifies Iliès Berdal as a wealth management advisor on the team. The firm maintains real estate exposure through vehicles such as SCI JEMA, a residential holding in Cholet, Maine-et-Loire. What distinguishes the practice is its supplementary asset base — the firm’s holdings extend beyond traditional financial instruments into curated alternative stores of value, including a mechanical watch collection and a wine collection. This orientation toward tangible, passion-linked assets, paired with a deliberately small client roster, creates a family-office culture closer to private-wealth concierge than to institutional asset management.