Our principals

The founding executives of 25Madison each have 30+ years of hands-on startup and business experience across a broad base of industries, including the kind of mid-market and very large businesses we seek to develop. Our team and their experience includes:

Matthew Fremont-Smith


  • Partner - Goldman Sachs
  • COO - Goldman Sachs Bank USA
  • COO - Goldman Sachs Asia Pacific
  • Head of Worldwide Strategy Group, Goldman Sachs

Gary Ginsberg


  • EVP, Corporate Marketing and Communications - Time Warner
  • EVP, Global Marketing and Corporate Affairs - News Corp
  • Managing Director - Clark & Weinstock, strategic consulting firm
  • Founding Editor and Counsel of George Magazine
  • Assistant Counsel to President Clinton

Michael Lynton


  • Chair - Snap Inc
  • Chair and CEO - Sony Entertainment
  • CEO - AOL Europe
  • CEO - Penguin Group

Kirk Posmantur


  • Founder/CEO - Axcess Worldwide, brand strategy and marketing firm
  • Angel investor and co-founder in numerous businesses including Fiji water, Tequila Avion, Ring
  • EVP - Cendant Corporation
  • SVP - Hospitality Franchise System

Steven Price


  • Founder and Executive Chair - Townsquare Media
  • Senior Managing Director - Centerbridge Partners
  • Deputy Assistant Secretary of Defense (Space and Communications)
  • Founder and CEO - PriCellular Corporation

Lance West

Senior Advisor

  • Chairman & CEO Centerbridge Europe
  • Senior Managing Director, Centerbridge Partners LP
  • Partner, Goldman Sachs & Co
  • Member of Technical Staff, Bell Laboratories

Dylan West

  • MBA Summer Associate, Apollo Global Management
  • Associate, Finance and Acquisitions, LeFrak Organization
  • Analyst, Asset Management, Charles H. Greenthal Co.
  • MBA, Columbia Business School; BA, Duke University

David Shteyman

  • Associate, Goldman, Sachs & Co., Consumer, Retail and Healthcare Group, Investment Banking
  • Analyst, Barclays, Real Estate, Investment Banking
  • Analyst, Raymond James, Financial Institutions, Investment Banking
  • BBA, University of Georgia


Nathaniel Rosen
Associate Director, Business Development

  • Associate, Blackstone Real Estate Debt Strategies
  • Analyst, Blackstone Real Estate Debt Strategies
  • MBA candidate, Harvard Business School; BA, Cornell 

Grant Silow
Associate Director, Business Development

  • Corporate Development, LinkedIn
  • Enterprise Sales/BD, Radius
  • Growth Equity Investor, Summit Partners
  • Growth Equity Investor, Camden Partners

Alyssa Goldberg
Strategic Advisor

  • VP, Human Resources, Townsquare
  • 20+ years of HR in a variety of entertainment and media companies (Viacom, WWE and Townsquare)
  • Broad HR generalist with expertise in Employee Relations, Performance Management and Employee Engagement

Michael Josephs
Strategic Advisor

  • EVP, M&A | Business Development, Townsquare
  • Managing Director, MESA Securities, a media and entertainment boutique investment bank
  • Director, Credit Suisse, Media and Entertainment Investment Banking group
  • VP, Merrill Lynch, Media and Entertainment Investment Banking group

Sun Sachs
Strategic Advisor

  • SVP, Product, Design and Engineering , Townsquare Media
  • 20+ years in interactive media, digital advertising, product management and design
  • Currently managing cross-discipline team of 40 engineers, designers and product managers
  • Prior roles at Townsquare, AOL, and various digital agencies