Slayton Lewis

Slayton Lewis

Founded by Bill Campbell in 2000, Slayton Lewis emerged from a deliberate rejection of the traditional advisory playbook. Campbell, a University of Chicago MBA and CFP, structured the firm to serve a tightly limited client roster, trading scale for depth of relationship and customized strategy design. The firm operates from a primary Chicago base with an additional office in Salt Lake City. The firm's deployment centers on financial planning, tax strategy, and portfolio management for high-net-worth individuals, families, and closely held business owners. Slayton Lewis does not publicly disclose asset-class allocations or portfolio company names, framing its work as holistic wealth management rather than product distribution. The advisory model integrates cash-flow analysis, after-tax income optimization, and business succession planning, all executed by a compact, specialist team that shares every client relationship. Slayton Lewis maintains a deliberately lean team of specialists — Campbell describes the group as 'highly trained professionals, each with their own specialization' — operating without the client-segregation structure common in larger RIAs. No recent operational event, such as a fund close, acquisition, or C-suite change, has been publicly documented in the last 24 months. Salt Lake City and Chicago serve as the firm's two geographic hubs, reflecting a low-profile regional footprint. The structural differentiator is Campbell's explicit reversal of the industry's dominant economic model. Rather than pursue AUM growth through advisor silos and scale, Slayton Lewis treats every client as a firm-wide relationship, with no account segmentation by advisor. This architecture is designed to sustain the boutique's founding commitment to a small-client-count practice, a posture that positions it as a durable advisory practice rather than a firm built for institutional acquisition.