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Gradient Leadership Team, supporting transportation compliance services

About Us

We are Gradient

Transportation moves the world, and compliance keeps it safe. That’s where we come in.

CleanFleet and Glostone have joined forces to become Gradient: your trusted leader in transportation compliance. Together, we bring greater expertise, deeper partnerships, and simpler solutions — all from one team of heroes ready to safeguard your future.

Our Mission is
[ Safeguard ]

Safer transportation makes a safer world.

On the road, on your team, and around the nation, Gradient is making transportation safer. We are stewards of knowledge and leaders of industry, upholding our economy and protecting our communities through lasting, trusted partnerships.

Our Values

Never Settle

There’s always a way to improve on today, and something amazing we can achieve tomorrow. When we constantly further our knowledge and understanding of what’s new, next, or better, everyone is wiser — and safer, too.

Share Responisibility

The only way to keep everyone safe is if everyone does their part. We maintain high standards of communication and accountability, and look for the same from our teams, partners, and collaborators.

Rise Together

We’re all about the big picture, and we know that nobody can do this alone. Working as a team, a network, and a community, we support the safety and success of our staff and clients alike.
Gradient team member walking with client holding paperwork, showing approach to transportation compliance

Our Approach

Compliance is complex, but it doesn’t have to be overwhelming. It begins with human behavior, which means it requires human solutions. Our team of experts works with you to navigate complex regulations, prevent risks, and create strategies that adapt as your business and the industry evolve.


We make compliance work for you — so you can focus on moving your business forward.

Learn about the Gradient Way
Dave and Shirley Grey, leaders of Gradient transportation compliance when it was CleanFleet & Glostone

Our History

Family-owned and operated since 1996, Gradient’s story began with a simple idea: transportation runs better — and safer — with compliance at the core. Glostone Trucking Solutions started with a focus on truck licensing, registration, and fuel tax compliance, while CleanFleet managed random drug and alcohol testing programs for FMCSA-regulated trucking and bus companies.


Led by Dave and Shirley Gray since 2001, Glostone grew from a small team of four to a trusted partner in transportation compliance. They brought in a second generation of leadership when their son Brian and his wife Heather joined the business — who helped expand the company’s reach even further by acquiring CleanFleet in 2011. When Dave retired in 2019, ownership passed to Brian and Heather, who set their sights on a new vision: to become national leaders in transportation compliance.


Now, with a bold new name, Gradient brings both companies together under one brand. With our powers combined, we’ve created a stronger, unified partner to help even more businesses and operators navigate compliance, scale with regulatory demands, and achieve a safer world.


We’re still the team you trust: a group of critical thinkers and problem-solvers who treat your business like our own. With every challenge we tackle together, we prove that safeguarding isn’t just what we do — it’s who we are.

CleanFleet and Glostone are now Gradient

We’ve joined forces to deliver even greater compliance solutions. By uniting our strengths and resources, we can provide an elevated level of partnership — all with the same trusted team safeguarding your future.
Learn about our history