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Loyalty. Integrity. Respect.

This is Southwest Truck Driver Training

Southwest Truck Driver Training is a second-generation, family-owned CDL school with campuses in Phoenix and Tucson, Arizona. The school has been operating since 1999 and has helped thousands of Arizonans start careers in commercial trucking.

What sets Southwest apart is not a slogan. It’s the way the school operates. Students are treated as people, not numbers. Instructors are chosen for their character as much as their credentials. The programs are built around what students actually need to succeed on the road and in their careers.

A School Founded by a Truck Driver

In 1999, Gary P. Williams started Southwest Truck Driver Training with a handful of family members and friends and a clear purpose: to give people real training and respect. Gary was a professional truck driver who knew the industry from the inside, and he believed a CDL school should operate the same way a good employer does. Show up. Do the work right. Treat people the way they deserve to be treated.

Gary is no longer with us, but his sons carry that standard forward. Under new leadership, Southwest has grown to two Arizona campuses while holding on to the same values the school was founded on. The faces have changed, but the mission hasn’t.

The People Behind the School

Southwest Truck Driver Training is what it is because of the people who work here. The staff across both campuses share a commitment to doing right by every student who walks through the door.

Sean Williams headshot

Sean Williams

President / CEO

Travis Williams headshot

Travis Williams

Director of Veteran Affairs

Sean Williams and Travis Williams standing together

Cactus icon

Meet Phil

Phil is the cactus. He shows up on campus, on the backs of shirts, and throughout Southwest Truck Driver Training’s branding. Though he’s always been part of our logo, Phil transformed in 2012, the year Gary P. Williams passed away, as a way to keep the founder’s spirit present at the school he built.

The name is a nod to Gary’s middle name. The idea is simple: Phil has your back. Phil has you covered. For a school built on loyalty, it is a fitting symbol. Phil is not just a logo. He is a reminder of where the school came from and what it still stands for.

EST. 1999

Timeline of Southwest Truck Driver Training

Graphic of SWTDT historical timeline

Southwest Truck Driver School student philosophy

The Philosophy Behind Our Training

Here at Southwest Truck Driver Training, we post our philosophy around both campuses. While it boils down to loyalty, integrity, and respect, we take it further with how our school operates every day.

Our student is…


The most important person on the campus.

Not a cold enrollment statistic, but a flesh and blood human being with thoughts and emotions like our own.

Not someone to be tolerated so that we can do our thing.

You are our thing.

Not dependent on us.


Rather, we are dependent on you.

Without you, there would be no need for us.

When employees are asked what makes Southwest Truck Driver Training different, the answer is always the same: “the people and the environment.”

That answer says everything.

What Students Get at Southwest

Instructors who know their students

Southwest’s instructors bring real industry experience into every classroom and onto every range. They’ve driven the roads, worked the routes, and know what the job actually demands. That knowledge shapes how they teach — and how they show up for every student they work with. At Southwest, students are not a number on a roster. They are the reason the school exists.

Training on Equipment that Reflects the Real Job

Most CDL schools train students on aging equipment. Southwest Truck Driver Training does not. The fleet is updated regularly, and every truck is custom-modified for training. Both automatic and manual transmission trucks are available because the industry uses both. Students also train on buses and straight trucks for Class B CDL programs. If someone spots an SWTDT vehicle on Arizona’s roads, they know it.

State-Approved Testing on Campus

SWTDT offers state-approved CDL testing services on-site. Students do not have to schedule a separate trip to a testing facility. When they are ready to test, they test where they trained. That familiarity matters when it counts most.

Instructor showing wheel rim to students

SWTDT instructor smiling and holding up a peace sign, standing in training yard

Instructors Chosen for the Right Reasons

Every instructor at Southwest Truck Driver Training has a professional driving record worth following. That is the starting point, not the finish line.

We also seek out something harder to measure: the ability to lead. Instructors here are expected to bring patience, honesty, and genuine investment in every student they work with. They push students because they know what the job demands. They support students because they know how hard the work is.

Many of our instructors are military veterans. For students with a military background, that shared experience matters.

Instructors are not just evaluated at hiring. They are expected to keep learning throughout their careers because the trucking industry keeps changing, and a good instructor keeps up with it.

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