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ESX, Inc.'s customer service is incredible - when we need something, we don't need it a month from now - we need it now. And we get it. Improvements are made immediately; they are open to new ideas, move quickly, and have unbelievable response time.

Jean Maddalon
CFO
American Business Media

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ESX, Inc. took the time to understand what our needs were. The final thing that sold me were the glowing client references. They were just spectacular!

Melinda Eggenberger
Vice President
Lex Mundi

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ESX, Inc. is always there for me 100% of the time. I know they can think out of the box - they are good at that!

Suzanne Gschwind
Rice University

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ESX, Inc., with its renowned expertise in serving education and non-profit communities, offered HACU the software and support to better, and most cost-efficiently serve our fast-growing community of members and partners.

John Moder
Senior Vice President and COO
Hispanic Association of Colleges and Universities

Contact ESX Inc. ESX, Inc. seemed to understand our business better than I did. When we were talking about the system design they were able to connect all the dots. They just get it.

Jean Maddalon
CFO
American Business Media

Contact ESX Inc. The do-it-yourself function of the Website Management System definitely has made it easier to make immediate changes to our website, that would have taken several days to be completed by a webmaster.

Rachael Negron
Executive Secretary
The International Air Cargo Association

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The greatest asset of Association Catalyst is the promise of customization and flexibility. ESX promised the resources, both human and intellectually, that made our decision an easy one. And, they delivered on their promise.

Richard Ducharme
Membership Administrator
North Carolina Dental Society

Executive Team

Mark Galvan, President
Mark has 15 years of experience in operations management for technology companies. He brings with him a proven understanding of technology and business processes that result in top-quality software products and services for ESX, Inc. and our clients. Mark has managed and developed operations working with hardware and software teams in both the aerospace and medical industries. He has solid experience in carrying projects through their life cycle, from concept to release. In addition, Mark has a wide-range of experience in developing Windows based software for web, desktop and server applications. Mark has a Bachelor of Science and a Master's degree from Texas A&M University in Biomedical Engineering.

Sebastian Stavar, Chief Technology Officer
Sebastian is responsible for technology implementation, operations and maintenance. Sebastian was the founder of WorldByNET.com, a Houston-based company that developed a network of 13 destination sites for expatriates. At WorldByNET Sebastian was responsible for all Research and Development of the technology infrastructure. Prior to WorldByNET.com, Sebastian was a project manager for developing infrastructure and installing switches for Romtelecom in Romania. He has a BA in Electronics and Telecommunications from the University of Bucharest.

Aaron Bennington, Vice President Product Design
Aaron has more than 10 years of experience as a creative design professional. He is responsible for corporate creative, the creative aspects of product development and client creative services. Aaron has extensive knowledge and experience with the following technologies: Macromedia Flash, DreamWeaver, Adobe Illustrator, Adobe Photoshop, ASP and JavaScript.

Steven Spar, Co-founder
Steven has more than 20 years of experience in the growth and management of technology companies. He last served as Vice President of Software Development and Engineering for Physix, Inc., a leading provider of physician workflow software. Prior to that, Steve was a co-founder, Director and Executive Vice President of Optex Biomedical, Inc., a venture capital-backed, publicly traded technology company developing sophisticated software-driven medical instrumentation and associated invasive chemical sensors. Steven holds a Bachelor of Science degree in Engineering from Northwestern University and a Master of Science from Texas A&M University. He is a Registered Professional Engineer and a Microsoft Certified Professional (MCP).

Les Schlain, Co-founder
Les has more than 20 years of experience in technology company leadership and management. Previously, Les was president of Data-Trak, Inc., a software company specializing in industrial software applications. In addition, Les was a co-founder and vice president of operations for Optex Biomedical, Inc., a venture capital-backed technology company that specializes in the development of a fiber optic chemical sensor for blood gas analysis. Les holds a Master of Science degree in Biomedical Engineering from Texas A&M University.

Mark Conroy, Co-founder
Mark brings to the table 18 years of experience in software engineering design and implementation. He has a complete and thorough understanding of Windows programming including: C++, Win API, MFC and COM, Embedded systems, micro-controllers and Windows CE. Mark developed his career by successfully navigating a program of self-directed training on advanced programming technologies and techniques. He applies this knowledge in the advancement of the most complex aspects of ESX, Inc. development projects. Mark has also evolved the programming skills of other team members by sharing his skills and mentoring junior programmers.