Delphi Wealth Partners

Delphi Wealth Partners

Mark Bissell launched Delphi Wealth Partners in 2018 after a career that included roles at Bank of America and Wells Fargo, where he advised families on credit, liquidity, and alternative investments. The firm was purpose-built as a multi-family office serving a small number of ultra-high-net-worth families, with a deliberate bias toward direct sourcing over fund-of-funds aggregation. Unlike large wealth managers that layer platform fees onto underlying manager fees, Delphi's model relies on a lean team negotiating co-investment and direct-deal access alongside its client base. The firm allocates across private credit, direct real estate, hedge fund strategies, and private equity, with a secondary focus on healthcare services. Known geographic concentration is in the United States, though the firm has indicated opportunistic appetite for select developed-market deals. Delphi's private credit activity includes bridge lending and asset-backed structures, often alongside other single-family offices that share origination networks. In real estate, the firm pursues multifamily and industrial properties, typically in joint ventures with established regional operators. Delphi operates from a headquarters in Wilmington, Delaware, and has not publicly disclosed total assets under advisement or aggregate deployment figures. The absence of publicly listed assets under management is consistent with a firm that deliberately structures itself outside the traditional reporting requirements of a registered investment advisor marketing to a broad retail or institutional base. Adjacent vehicles — such as a philanthropic foundation or a dedicated operating company — have not been confirmed through public record. As of 2025, the firm continues to operate without a public-facing LinkedIn company page, relying instead on direct intermediary relationships and private co-investor networks for deal flow. Delphi's structural differentiator is its rejection of the large-RIA playbook. Rather than building a book of hundreds of client households, Bissell has kept the client count deliberately small to preserve negotiating leverage on direct deals. This architecture means the firm's economics are tied to per-deal performance and long-term retainer relationships, not to recurring fees on a swelling base of assets, aligning incentives closer to a traditional European-style family office than a US wealth management aggregator.