Holly Baxter, Principal
HBA Art Advisory
HBA Art Advisory is an independent art advisory practice focused on the formation and stewardship of contemporary art collections
Operating across the primary and secondary markets, the firm works closely with leading galleries, artists, estates, and institutions worldwide. The practice is defined by rigorous judgment, intellectual depth, and a disciplined approach to acquisition and long-term collection development.
Advising a select international clientele, HBA supports the formation of focused collections through careful stewardship, institutional engagement, and sustained market perspective — positioning collections for lasting cultural relevance.
Independent of market cycles, the firm emphasizes connoisseurship, scholarship, and long-horizon thinking in the placement of works of enduring significance.
Holly Baxter, Founder & Principal
Holly Baxter is the Founder and Principal of HBA Art Advisory and serves as Executive Director of Art in Protest, the Human Rights Foundation’s international initiative supporting artists whose work advances freedom of expression.
For more than two decades, Baxter has advised private collectors on the development of enduring collections shaped by curatorial rigor, market intelligence, and longstanding relationships throughout the international art community.
She is an Executive Member of the Association of Professional Art Advisors (APAA) and has held leadership and advisory roles across numerous arts organizations, including the Board of Directors of Gray Area Foundation for the Arts, SF Camerawork, SFMOMA’s SECA Committee, the National Advisory Board of Artadia, and the Curators Council of LA><ART.
Earlier in her career, Baxter conceived and led RH Contemporary Art, a division of RH (NYSE: RH), establishing a corporate platform that included a pioneering digital initiative, a 28,000-square-foot New York gallery, and an international residency program supporting emerging and established artists.
Her advisory practice is grounded in connoisseurship, intellectual engagement, and a commitment to the enduring cultural significance of art.
Marina Goulart, Associate
Marina Goulart, Advisory Associate
Marina Goulart is an Advisory Associate at HBA Art Advisory, contributing to research, planning, and execution of complex advisory projects across the primary and secondary markets.
With an academic foundation in marketing and communications from ESPM in São Paulo and advanced studies in Design Strategy at the California College of the Arts, she brings a multidisciplinary perspective to the firm’s work with private collectors.
Prior to joining HBA Art Advisory, Marina collaborated with leading Brazilian galleries on international art fair strategy and curated bespoke art travel programs for collectors, deepening her engagement with the global art ecosystem. She previously served on the partnerships, VIP relations, and communications teams at SP–Arte, the São Paulo International Art Fair.
Having lived and worked in Brazil, Italy, the United Kingdom, and the United States, Marina brings a global outlook and cultural fluency to the firm’s advisory work.
Isabella Tunioli, Associate
Isabella Tunioli, Advisory Associate, Collections
Isabella Tunioli is responsible for collections management and documentation for HBA Art Advisory’s clients, overseeing the organization, cataloguing, and long-term stewardship of important private collections.
She holds a BA in Art History with a minor in Fine Arts from the University of San Francisco and brings institutional experience from the Collections Information department at the Los Angeles County Museum of Art (LACMA), where she developed a rigorous approach to documentation and collection systems.
Her work reflects a strong commitment to professional standards, ensuring that collections under the firm’s advisement are maintained with the precision, structure, and care associated with museum practice. Based in Los Angeles, Isabella contributes thoughtful oversight to the responsible management of complex collections.