Mark S. Colaw


A native of San Antonio, Mark has a passion for the automotive industry. He started working for the shop's namesakes, Hastings and Ida Seymour, as one of three people who knew how to run the new diagnostic machines. Mark eventually purchased Seymour's Garage in 1985, and opened the current location in 1988.


Mark is highly involved in his community; as a longtime leader of volunteers with the San Antonio Rodeo and recently was inducted into the S.A.L.E Hall of Fame. Mark lends his experience, strength, and knowledge to the organization that helps so many youths in the community. He started at the age of 13, volunteering for various organizations, and since then his vision recently brought a team of automotive industry professionals together to create a community event called CarFest. As recently as 2017, CarFest donated more than $100,000 to local trade schools to assist youth in pursuing a career in the automotive world. Mark also serves as a board member at Hidden Springs Youth Ranch, where he donates the land that the youth ranch uses and resources to maintain the facilities.


At Seymour's Garage, we are committed to providing quality service using high-tech diagnostic methods and doing the job right the first time. For nearly 50 years, Seymour's Garage has been an innovator and implemented many cutting edge procedures and processes to cut costs and keep your vehicle running great.


Service Writer 

Matthew joined the family business eight years ago. Growing up around the shop, he is excited to see the growth and be able to assist customers. Matthew is a native San Antonian married to Anni, and together they have three children. 

In addition to his work at Seymour's, Matthew operates Twelve-Twelve Auto Sales. The next time you are in the market or looking for a specific vehicle, call Matthew. 



 When Joseph was still in high school, he brought his truck into Seymour’s Garage for repair. He had always worked on his own truck and really enjoyed it; he loved working with his hands and his head at the same time, and knew then that a desk job was not for him. A while later, he brought his truck into Seymour’s Garage again to have the rear end diagnosed. Mark, owner of Seymour’s, test drove Joseph’s truck that day. Joseph took this opportunity, and time with Mark, to ask some questions about entering the automotive world. Mark told him to “define your direction,” and “go to school, get some experience and come back to see me." Joseph left that day feeling determined. He finished high school, completed his college program, and went to work for a local shop. After getting married, buying a house, and a couple years of working at an automotive shop, he decided it was time to head back to Seymour’s Garage. With resume in hand and no appointment, Mark agreed to meet with the young man in the lobby. Joseph asked Mark if he remembered him and after recounting the story from a few years prior, Mark did! Mark was impressed with Joseph’s drive, determination and skill set and hired him to be part of the Seymour’s family where he has been since!



Silvester started working on cars with his dad in his teenage years. He obtained a certificate at Coastal Bend College in the automotive program and has been working professionally in repair shops for the last fifteen years; at Seymour's for the last five. He is a native from San Antonio and Silvester and his family still call it home!


Intern Technician

Richard is on his way to complete his studies at STVT as a Diesel Mechanic! His passion for automotive drove him back to San Antonio from California so he could get his education here. When Richard is not turning wrenches at Seymour's, you can find him hiking, fishing or anything outdoors with his friends.



Bill is approaching his 14th year at Seymour's Garage. As a porter, he offers rides to pickup or drop off customers that are having work done on their vehicle. He also helps out around the shop with various tasks.


Community Outreach

Angie has been with Seymour's for over three years. Her background in broadcasting and event marketing helps Seymour's stay on top of the latest community events. Angie works alongside of non-profits like the Community of Automotive Professionals and CarFest to help promote the automotive industry to the community and youth.


Community Outreach

Larell has been a part of the Seymour's Community Outreach for nearly two years. A Texas State grad, she uses her marketing experience to help our customers and showcase what Seymour's has to offer, as well as the various non-profits we serve.


Community Outreach

Daniella is our video and social media guru! She manages many projects at once and helps get the word out socially about Seymour's and the various community events that we are involved in like CarFest.


Front Office

The first person you will meet when you drop your vehicle off for service or when you call is Melissa. She will greet you with a smile, get your paperwork done, and get you in touch with one of our qualified service advisers.


Parts Assistant

Ryan has been with Seymour's Garage for three years. He assists customers, vendors and the guys in the shop. When he's not at Seymour's making everyones life a little easier, he can be found on the golf course. We hear he has a pretty good swing!



Tommy has been a fixture at Seymour's since 1993. For nearly 25 years, he has been taking care of San Antonio drivers. He's a hands-on mechanic with an extensive knowledge of a vast array of automobiles. When Tommy is not working on cars, you can bet he's probably at a NASCAR race, rooting for his favorite team! Talk about a guy that loves cars! 



Brady is currently with Seymour's Garage as first year tech. Born and raised in Odessa,Texas until five year's ago where he moved to Jourdanton, Texas with his wife and two kids. Brady enjoys going hunting in his free time. He is currently in school at STVT. He is under their 1-year program with only 11 weeks left to finish!



Jason has been a technician with Seymour's Garage for five years and has over 10 years experience in keeping your vehicle safely on the road. Even when he's not working on cars, his brain is working overdrive as both a tech guru and staying late doing research with owner Mark Colaw. 



Daniel has been a technician for over seven years. Growing up in San Antonio fixing cars with his dad, Daniel cultivated his passion for cars and went on to study automotive at STVT. He also enjoys spending time with his family and you may even find them hitting a bowling alley! 



Hunter is a San Antonio native and currently pursuing an Engineering Degree from UTSA. He is a great addition to the staff at Seymour's and is always ready to help wherever he is needed!