
About Us
We are a collective of proven people leaders and operators that believe deeply in building values-driven and coach-centric cultures.
Aubergine Partners was founded by Siobhan O’Leary in 2013. With over 25 years of international experience as a Human Resource Executive, Siobhan has held senior-level positions with renowned organizations such as Hyatt Hotels, Four Seasons Hotels & Resorts, The Carlyle Hotel, Rosewood Hotels and Resorts Corporate, and Convene. Convene received significant recognition during her tenure, being awarded the Top Company Culture Award by Smart CEO Magazine in 2017, ranking #11 on Fortune Magazine’s Great Places to Work, being named one of Forbes’ most promising companies, and earning the Best Workplace title from Inc. Magazine.
Aubergine Partners’ proprietary leadership program was named in the top 5 globally by the International Coaching Federation (ICF). In 2023, Aubergine Partners was recognized as a Top Human Resource Service Provider.
Our Aubergine Ensemble
Our curated team of business leaders are experts in their fields with multiple coaching certifications. Grounded in continuous learning, we work with senior leaders and organizations across industries to address real challenges and deliver measurable results. Each member brings unique expertise, contributing to our dynamic synergy. Our team fosters laughter and joy in every client interaction. Get to know the talented individuals who drive our success!

Michelle Szmjada-Villatoro, CPC
Operations & Business Development

Sandi Mitchell, CPC
Certified EOS Implementer

Mary Mattson-Quagliana, CPC
Internal & External Brand Validation

Melissa O’Hara
Organizational Development, Certified Positive Intelligence & Life Design Coach

Rebecca Gordon Sewell
People Operations & Leadership Coach

Brian Schwartz
Coach & Facilitator

Marcia Kelly, CPC, SHRM, SCP
People Operations, Learning and Development

Marcie Lieberman, CPC
Business Operations and Brand Validation

Ruth Cusack
Total Rewards Strategist

Marilyn Draper
Executive Team Performance

What Our Clients Say
