The OneCall Global Team

Our Executives


Céline Greffard, Founder and CEO

Céline Greffard is an industry visionary who has led multiple successful startups and for over three decades, has been delivering exceptional business value to clients through innovative technologies. Prior to co-founding OneCall Global, Greffard held executive positions at Business Evolution (acquired by Kana), McAfee (merged and became Network Associates), WebCollage, and Network Solutions (acquired by Memco). In addition to being named one of the Top 25 Leading Women Entrepreneurs of New Jersey, Greffard was noted as one of America’s Women Business Leaders in Forbes magazine.

Our Advisors

David T. Gulian, Executive Board

David Gulian has led dozens of technology companies to successful double-digit growth. Prior to joining Futura Mobility, Gulian was CEO and co-founder of InfoLogix, a provider of enterprise mobility solutions for the healthcare and commercial industries that he led to a successful IPO and eventual acquisition by Stanley Black & Decker.

Lenny Liebmann, Executive Board

Lenny Liebmann is founder of Morgan Armstrong, a leading technology solutions consultancy and research firm. He has been a thought leader and active business strategist in every major technology shift over the past four decades—from the beginning of the PC revolution and open networks to cloud, mobility, and continuous software delivery.