CAR Peace Rover at Islamic Cultural Center of Northern California, producing a mobile art exhibtion and community workshop event.

CAR Peace Rover at Islamic Cultural Center of Northern California, producing a mobile art exhibtion and community workshop event.

Contact us at hello[at]

or at (415) 425-1647


To strengthen community and empower participation in the arts as a channel for healthy, active and informed citizenship.


Community engagement, access and equity.


Art is a form of community building, and nonviolent civil action. It builds networks of shared understanding, compassion, belief and appreciation. Active community engagement leads to stronger, more informed and connected communities.

Collective Action Studio achieves its mission by:

  1. Creating art that is social, challenging and personal.

  2. Curating and creating exhibitions, events, and public programs for museums, cultural centers, art galleries, community foundations, and more.

  3. Designing tools, objects, and situations in which a passive audience becomes an active co-creator of content and

    We believe our art:

    1. Inspires participation

    2. Bridges communities across age, cultural and identity differences

    3. Enables access to the arts and empower voices to be heard

    4. Strengthens resilient communities

Collective Action Studio (CAS) is a community art organization. We produce artwork, curate exhibitions, and develop artistic and educational projects. Our goal is to develop access, equity, and learning opportunities for the community, to advance social justice, and to bolster communities through the arts. 

CAS was founded by Justin Hoover and Chris Treggiari, and currently includes Fernanda D'agostino, and Sergio De La Torre as collaborators.


Justin Charles Hoover (胡智騰)

Justin develops curatorial platforms and artistic opportunities for community engagement. His work looks at issues of cultural disjuncture, language, and migration through the lens of visual art, social practice and performance. His heritage is Chinese-Russian-American and he seeks to engage communities to develop collaborative, creative and educational projects. He has held positions as the Curator of the Chinese-American Museum of Los Angeles, Creative Director of Fort Mason Center, Curator and Gallery Director of SOMArts, Curator of Exhibitions at the Santa Cruz Museum of Art and History, and with the Sculpture Quadrennial Riga, Latvia. Hoover holds bachelor degrees in Peace Studies and French Literature from Colgate University, an MFA in New Genres from the San Francisco Art Institute and an MPA in International Management from the Middlebury Institute of International Studies, at Monterey. 


Chris Treggiari

Chris's artistic practice investigates how art enters the public realm and connects wide ranges of people and neighborhoods in a variety of communities. He highlights diverse community identities, shared histories, and personal stories through participatory, mobile platforms that encourage exploration from the viewer. Often these platforms entail creative methods that aim to turn the passive viewer into an active art-maker who can participate in sharing a personal voice in a community dialogue. Treggiari has extensive experience with art and community engagement and currently teaches at the California College for the Arts in the department of Art and Public Life. He also is an acting commissioner for the Oakland Arts Commission. 


Fernanda D'Agostino

Fernanda is a renowned artist with 23 permanent public art installations in airports, museums, and public sites around the world. In her capacity with CAS, D’Agostino functions in a consultant role, facilitating the translation of Hoover’s project designs into permanent materials, coordinating with a structural engineers, fabricators, and architects. D’Agostino is further assisting CAS with her knowledge of public art processes, gained through her extensive experience as a leader in public art trainings for the Regional Arts and Culture Council in Portland. With two of her projects recognized by the Public Art Network’s “Year in Review”, D’Agostino’s partnership as the CAS Consultant of Public Art Process is highly valuable. In addition to being a pioneer in new-media and interactive media installation art, D’Agostino has expertise in Design Team Integration, Fabrication and Budgeting, working from scale models, working with structural engineers, and translating ideas from ephemeral materials to archival materials.


Sergio De La Torre

Sergio is a visual artist, curator and educator based in San Francisco, CA and Tijuana, Mexico. De La Torre has worked with and documented the manifold ways by which citizens reinvent themselves in the city they inhabit. These works often invoke collaborations with the subjects and invites both intimate and critical reflections on topics related to housing, immigration and labor. 

These works have appeared in the 10th International Istanbul Biennial, Turkey; the Bienal Barro de America, Museo de Bellas Artes Caracas, Venezuela; in the Cleveland Performance Art Festival, Cleveland, Ohio; the Atelier Frankfurt, Germany; the Centro Cultural Tijuana; the Yerba Buena Center for the Arts in San Francisco; the TRIBECA Film Festival, New York and el Festival Internacional de Cine de Morelia. De La Torre is an Associate Professor in the Art and Architecture Department at the University of San Francisco. 


CAS has exhibited, curated and developed programs for venues including:

  • The Venice Architecture Biennale, US Pavilion (Design Action for the Common Good), Venice, Italy

  • Sculpture Quadrenniale Riga (SQR), Riga, Latvia

  • Chinese American Museum, Los Angeles, CA

  • Portland Institute of Contemporary Art, Time based Arts Festival,

  • San Francisco Museum of Modern Art, San Francisco, CA

  • Torrance Art Museum, Torrence, CA

  • The Getty Museum, Los Angeles, CA

  • Berkeley Art Museum, Berkeley, CA

  • Yerba Buena Center for the Arts, San Francisco, CA

  • San Jose Museum of Art, San Jose, CA

  • The Oakland Museum of California, Oakland, CA

  • ZERO1 Biennial, San Jose, CA

  • and more...

CAS has have received grants from the Department of State's Bureau of Cultural and Education Affairs, WESTAF, National Endowment for the Arts, California Arts Council, San Francisco Foundation, the San Francisco Arts Commission; the Creative Work Fund; the Arts Commission of San Jose; Creative Capital, the Rockefeller Foundation and more.