Sierra Bretz

I help organizations breathe easier—and dream bigger.

From growing a small volunteer center into a regional hub, to stepping in as interim CEO for nonprofits in crisis, to advising eco-startups in France, my work has always been about one thing: turning vision into impact.

I’ve led projects on both local and global scales—securing millions for community programs, strengthening arts, literacy, and healthcare organizations, and championing causes from plastic-free innovation to making sure no one dies alone. Along the way, I’ve partnered with teams from the Red Cross to grassroots leaders in Haiti.

My style? Warm, grounded, and collaborative. I energize teams, build structures that last, and never shy away from bold leaps—whether it’s protecting the planet, feeding families, or making sure voices on the margins are heard.

Personally, I’m happiest when I’m giving back—whether through volunteering, mentoring, or simply lending a hand where it’s needed. My heart is with people experiencing poverty, and I’m endlessly passionate about preserving our environment. I love hiking, biking, yoga, cooking, and growing orchids (and other green beauties). The arts are a big part of my life too—along with reading, writing, and a good game of chess. Truth is, I love a little bit of everything…especially when it brings me closer to people, nature, or creativity.