Areas of Expertise

  • Borrower & Lender Advisory
  • Capital Markets
  • Cash Flow Projections
  • Due Diligence
  • Financial Advisor
  • M&A
  • Principal Investments/Financings
  • Turnarounds/Restructurings
  • Valuation


  • Agriculture
  • Business Services
  • Energy
  • Healthcare
  • Logistics/Wholesale
  • Real Estate
  • Restaurant

Prominent Matters

  • Principal Investor and Financial Advisor to Consumer Financial Services, LLC
  • Principal Investor and Financial Advisor to Richmond Cold Storage, LLC
  • Investment Banker to Tubular Products Company
  • Investment Banker to Radica Games Limited
  • Financial Advisor to Curae Health, a not-for-profit hospital system, headquartered in Knoxville with hospitals located in Mississippi and Alabama


  • MBA University of Texas
  • BBA University of Georgia


  • 4 Years with Firm
  • 20 Years of Relevant Experience

William McCaleb joined GlassRatner (now doing business as B. Riley Advisory Services) in 2017 and has more than 20 years of experience in financial advisory roles including restructuring, capital raising, mergers and acquisition, cash management, transaction due diligence and operational consulting. William has experience in a wide variety of industries including agribusiness, business services, energy, healthcare, and manufacturing. His clients have ranged from multi-billion, publicly-held companies to privately-held, entrepreneur businesses. William is a detailed thinker and sophisticated in all areas of financial modeling and valuation.

Prior to joining the firm, William was a principal at Atlanta Equity Investors, a lower-middle market private equity firm, where he was responsible for evaluating new investments and monitoring current investments including consistent interaction with senior management team members. Before joining Atlanta Equity, William was a member of Navigant Capital Advisors, where he served as a key advisor to numerous companies in their capital raise, mergers and acquisition, and restructuring needs. Prior to Navigant William was an Associate in the Global Natural Resources Group of Lehman Brothers Inc. in New York and had a stint as a commercial banker at SunTrust in Atlanta.

William holds an MBA in Finance from the University of Texas as well as a BBA with Honors from the University of Georgia.

B. Riley Advisory Services works with lenders, law firms, private equity sponsors and companies of all types. Our Advisory Services are a unique mix of Valuation and Appraisal Services including asset-based lending (ABL) Valuations; Restructuring and Turnaround Management; Forensic Accounting and Litigation Support; Operations Management; Compliance, Risk & Resilience Services; and Transaction Support Services including Due Diligence and Quality of Earnings Reviews. B. Riley Advisory Services is the trade name for GlassRatner Advisory & Capital Group, LLC, Great American Group Advisory & Valuation Services, LLC, Great American Group Machinery & Equipment, LLC, and Great American Group Intellectual Property, LLC.