Advisory
Refine your collection
Gallery Sonder Advisory provides personalized guidance for collectors, interior designers, and clients seeking to thoughtfully integrate contemporary art into their spaces and lives. Through expertise in curatorial strategy, collection development, market insight, and artist placement, we provide tailored support across every stage of the collecting process.
Grounded in close relationships with artists, collectors, and trusted institutions, we help clients navigate the evolving art market with clarity and confidence. Our philosophy centers not only on acquisition, but on living with art—how a work can shape atmosphere, reflect identity, and create lasting connection over time. With discretion, transparency, highly collaborative approach, we help clients acquire works with both confidence and intention.












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BOOKINGEXPERTISE
CURATORIAL EXPERTISE
Gallery Sonder Advisory works closely with collectors, designers, hospitality partners, and cultural spaces to thoughtfully integrate contemporary art into environments that feel distinctive, immersive, and deeply considered.
REACH
Global Reach
With over 20 years of experience in the international art market, our approach blends high-level market intelligence, bespoke transactional services, research-driven advisory, and strategic project execution. Through thoughtful acquisitions and long-term collection management, we help clients tell their story through their collection.

Vision
Founder's Vision
Joshua MacDonald established Gallery Sonder Advisory to create a more thoughtful approach to acquiring contemporary art—helping clients build lasting connections with works that shape both their spaces and everyday lives.