James Day

James Day is the founder and Managing Director of Peritus Investment Consultancy, an independent, privately owned firm he established in 2003 to provide impartial investment guidance to private clients, family offices and trustees. The business has no external shareholders, a structure Day emphasizes as central to its independence and freedom from product-selling conflicts. Peritus's work covers investment profiling, strategic and tactical asset allocation, extensive manager research and selection, and ongoing consolidated performance monitoring, fee analysis and risk assessment.

Day brings roughly 30 years of financial-services experience to the firm. Before founding Peritus, he held roles at Ernst & Young Trust Company, ABN AMRO (Private Banking), and Morgan Stanley Quilter / Quilter Cheviot. He is reported to have been educated at Sherborne School. Today he is based in Zürich, from which Peritus serves a Swiss and UK client base.

Day is the public face of the firm's approach, which draws explicitly on the endowment-investing philosophy associated with institutions such as the Yale endowment — long time horizons, disciplined governance, deep due diligence and transparent, low-conflict fee models. He has represented Peritus in industry commentary, including JTC Private Office's "Asking the Experts" series (2021), where he discussed building lasting client relationships and delivering professional service.

Under his leadership Peritus was named Investment Consultancy Firm of the Year at the WealthBriefing Swiss Awards, an accolade Day collected in person; the firm has been recognized in this category in both the 2024 and 2026 award cycles.

• Advisory, not principal investing: Peritus does not deploy its own capital into startups; it advises clients on how their wealth is managed and by whom. Any "investment stage / seed" framing from the stub data is not supported by the firm's public positioning.
• Independence first: privately owned with no external shareholders, so recommendations are not tied to in-house products or commissions.
• Manager research & selection: rigorous due diligence to profile, select and monitor global investment managers on clients' behalf.
• Endowment-style, long-term horizon: the firm cites the "Yale model" as a framework — long-term capital stewardship, strong governance and disciplined decision-making.
• Transparency: emphasis on transparent reporting, attribution analysis, fee scrutiny/negotiation and clear risk assessment.
• Client-centric mandate: stated mission to "improve the experience our clients have with the management of their wealth," serving private clients, family offices, charities (specialized pricing), trustees, lawyers and accountants.

No public record of venture, angel or seed-stage portfolio companies could be verified for James Day or Peritus. Peritus operates as an investment consultancy that selects and monitors third-party fund managers for wealth clients, so it does not publish a startup portfolio in the way an angel investor or VC would. Presenting any named "deals" here would be fabrication; none are claimed.