our philosophy

ISE Baseball’s client-centric culture means our players are always our top priority. Having represented numerous Hall of Famers, Most Valuable Players and MLB All-Stars, we know the formula to help our clients maximize their potential during their playing careers and beyond.

At ISE Baseball, we leverage our strong industry relationships to help achieve contractual success for our clients from the MLB Draft through the end of their playing careers. We have more than 35 years combined experience and have negotiated over $1 billion in contracts in the last five years alone.

Our unmatched support off the field includes marketing and endorsement opportunities, public relations and social media strategy, community outreach support and foundation management, and a VIP concierge service.

With several former players as agents, the team at ISE Baseball understands exactly what it takes to be successful in Major League Baseball both on and away from the diamond.

services & support

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Draft Preparation

Contract Negotiations

Contract Negotiations

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Arbitration Preparation

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Marketing and Endorsement Opportunities

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Public Relations and Social Media Strategy

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Community Outreach and Foundation Support

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Post Career Management

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Concierge Services

Our Team

ISE Mark Pieper

Mark Pieper
CEO, Baseball

ISE Fernando Cuza

Fernando Cuza
President, Baseball

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Aaron Etchison
Player Representative

ISE Aileen Villarreal

Aileen Villarreal
Public Relations

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Antonia Acuna
Marketing

ISE Arturo Perez

Arturo Perez
Player Representative

ISE Carlos Dominguez

Carlos Dominguez
Player Representative

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Creighton Dorfman
Marketing

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Fausto Severino
Player Representative

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Gabriella Thomas
Client Relations

ISE Jason Spector

Jason Spector
Marketing

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Jeff Gelalich
Player Representative

ISE Jeff Tiedeman

Jeff Tiedeman
Baseball Operations

ISE Worldwide Joh Courtright

John Courtright
Player Representative

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John Pedrotty
Player Representative

ISE Josh Ramon

Josh Ramon
Player Representative

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Kent Yamamoto
Marketing / Japan

ISE Laina Parker

Laina Parker
Client Relations

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Maeve Donaghey
Client Relations

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Mariana Guzman
Client Relations

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Matt Lynch
Baseball Operations

ISE Matthew McConnell

Matthew McConnell
Player Representative

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Max Tracey
NIL Marketing

ISE Michael Hollimon

Michael Hollimon
Player Representative

ISE Mike Milchin

Mike Milchin
Player Representative

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Steve Fine
Senior Counsel

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Tiffany Spencer
Client Relations