To make better brands for a better planet.
Callosum guides purpose-driven outdoor brands through critical strategic thinking, disruptive brand story creation, and brand marketing which result in measurable cultivated relationships.
Launched in Chicago in 2005 as a graphic design firm, we added services and revamped into a branding consultancy in 2007. Heading west in 2010, a 2nd office was added in Vail, CO. In 2015, our niche narrowed to outdoor recreation and mountain lifestyle. It’s a story of evolution to the outdoors.
Our go-to network enables our clients to accomplish goals quickly and efficiently utilizing services Callosum has screened and trusts resulting in high-level cohesiveness and like-mindedness to accelerate client results. We are committed to the Quadruple Bottom Line - profit, people, planet, purpose.
Our Values
Adventure
In the outdoors, we try and fail daily. We’re pro-risk-takers. We’re comfortable being uncomfortable. We’ll go first every time!
Empathy
We see you. We feel you. We intentionally hold space for your success, guiding you step by step.
Depth
We are deep-thinking strategists. Our insatiable curiosity and drive awaken the magic within to create transformational results.
Partnership
We’re designed to be in relation. Extending a hand comes naturally to collaborate with purpose, integrity, and gratitude.
Our Services
Callosum understands where a brand may want to go. As a Growth stage business, you have a foundation and business is now taking off. You are ready to scale. See suggested services.
Callosum understands where a brand may want to go. And, as a CEO or Founder, we also recognize that you may be ready for more. See suggested services.
We all have elements of ourselves which, when combined, make us irreplaceable. These offerings are Clare Hefferren's Special Sauce services which fall outside of the traditional branding umbrella, yet we wouldn't want you to miss out! See suggested services.
Portfolio
Our clients are the experts. Callosum is the guide. See a sampling of our work beyond the ‘war room’ where we birth brands that make a difference.
Want to talk? Let's do it!
Giving
Callosum is committed to our planet and future generations. We give and ask our purpose-driven clients to as well. We've chosen nonprofits that align with Callosum's purpose to Make Better Brands for a Better Planet and our company brand values of depth, adventure, empathy, and partnership. We honor your work and thank you for making nature more accessible!
From 2020-2022, Callosum was a 1% for the Planet member. In 2023, we chose to direct our membership fees directly to non-profits.
On Colorado Gives Day, Callosum invests 50% of our annual 1% donation in our Eagle County community backyard.⠀Most recently, our partners include:

What does Callosum mean?
Corpus Callosum [n. pl. corpa cal•lo•sa] is the arched bridge of nervous tissue that connects the two cerebral hemispheres, allowing communication between the right and left sides of the brain.
Callosum understands where a brand may want to go. At the Early-Stage of the brand life cycle, you’ve started to get sales. See suggested services.