WilliamsMarston Announces 2026 Promotions

Dec 18, 2025

WilliamsMarston LLC (“WM”) is pleased to announce the recent promotion of thirty four team members across our Accounting, Tax, Valuation, Technology and Corporate teams.

Managing Director

  • Alessandro Di Conza | Tax – New York
  • Corey Kelly | Tax – New York
  • Jake Fells | Technology – Colorado
  • David Grande | Technology – Minneapolis
  • Clifton Mcmillon | Technology – Kansas
  • Jennifer Switzer | Technology – Texas
  • Russ Kowal | Transaction Advisory – New York

Director

Manager

Corporate