We are a small but mighty collection of thinkers, doers, and strategists.

Founder, operator, and former startup CEO, Christine is our leader and brings two decades of experience building mission-driven organizations from the ground up. From launching a bridal marketplace to advising venture-backed founders and real estate leaders, she specializes in turning vision into execution—and building the teams and trust needed to make it last.

At The Callahan Collective, we don’t just bring expertise—we bring a trusted network. We’re known for connecting the dots quickly and bringing in the right people at the right time, whether that’s sourcing capital, solving operational challenges, or recruiting top-tier talent. Our strength lies in knowing when to go deep and when to bring in specialized support. If we don’t have the answer, we know someone who does—and we make sure they’re in the room when you need them most.

“I believe in operational clarity, courageous leadership, and putting people at the center of scale.”

- Christine Callahan, CEO