About MTG Shops
MTG Shops — Mobile Transportation Group Inc — operates 21 fixed service bays and 17 mobile service trucks across Colorado, Wyoming, and Texas. We are a heavy-duty truck, trailer, diesel, and tire repair company serving commercial truck drivers, fleets, and trucking companies with 24/7 mobile roadside service and full-service shop repair.
Built from a single service truck into a multi-state network
MTG Shops was co-founded by Aaron Shumake and Genevieve Grinolds. Aaron — raised in the Denver Metro area — came to the diesel industry from construction and project management, building a deep respect for the trades and the critical industries that keep America moving. Genevieve grew up in the trucking trade, working every seat from parts runner to trailer mechanic to service-truck operator.
Together they founded MTG Truck Shops with one mission: revolutionize 24/7 mobile truck and trailer repair. What began as a single mobile service truck has grown into a multi-state operation spanning three fixed shops and a fleet of 17 mobile service trucks — with a fourth-state expansion already on the horizon.
MTG is a privately held company. Aaron serves as President / CEO and Genevieve as Vice President / Administration, leading finance, HR, and 24/7 dispatch. The company is anchored by a leadership team with decades of combined diesel, towing, fleet, and operations experience.
Three fixed shops, mobile coverage across three states
MTG Shops operates three full-service repair facilities and a fleet of mobile service trucks covering 14 service areas across Colorado, Wyoming, and Texas. Fixed shops handle bay-level heavy repair; mobile units handle roadside, yard, and jobsite calls.
Harlingen Shop
Brush Shop
Green River Shop
Mobile repair is where we win — and where we're growing fastest
Our 17-truck mobile fleet is the largest revenue driver and the highest-growth area of the business. Every parked truck earns nothing — so MTG brings the shop to the truck: roadside, fleet yard, distribution center, or jobsite, 24/7/365. That model scales without the capital drag of new bays and is why mobile is the core of our expansion strategy across Colorado, Wyoming, and Texas.
Mobile service areas
Shop-level capability, deployed roadside
Our 17 mobile service trucks and 21 fixed service bays are equipped with brand-specific diagnostics, air and brake tools, tire equipment, and aftertreatment service tools — so most roadside and shop calls are handled by one crew with one invoice.
Where the freight is moving
MTG Shops covers Colorado, Wyoming, and Texas along the interstate freight corridors that connect the Mountain West to the Midwest and the Southwest. Mobile units are deployed to cover roadside breakdowns, fleet yards, distribution centers, and truck stops across all three states — 24/7/365.
I-25 Front Range (Denver, Colorado Springs, Pueblo, Fort Collins), I-70 (Denver to the Eastern Plains and Watkins), and I-76 (Brush, Fort Morgan, Sterling). Brush shop anchors the eastern corridor.
I-80 through Rock Springs, Green River, and the high-plains grades. I-25 through Cheyenne and southern Wyoming. Green River shop anchors the I-80 corridor with shop and mobile service.
Harlingen and the Rio Grande Valley (I-2, I-69, US 77), North Texas (McKinney, Plano, Frisco, US 75), the DFW metroplex (I-20, I-30, I-35), and West Texas (San Angelo, US 67/87).
Who we keep rolling
MTG Shops serves commercial truck drivers, fleet operators, trucking companies, and owner-operators across multiple freight-dependent industries. From a single roadside breakdown to scheduled multi-truck fleet maintenance, our crews handle the full scope.
Long-haul trucking
OTR carriers running I-70, I-76, I-80, I-25, US 75, and I-2/I-69 corridors.
Distribution & logistics
Distribution centers, rail ramps, and last-mile delivery fleets across CO, WY, and TX.
Oilfield & energy
Permian Basin oilfield haulers, West Texas vacuum and frac fleets, and Wyoming energy corridor traffic.
Cold chain & reefer
Produce and refrigerated freight in the Rio Grande Valley and cross-border routes.
Construction & vocational
Dump, lowboy, and vocational equipment — heavy-haul and jobsite truck repair.
Cross-border freight
US–Mexico border crossings at Brownsville, McAllen, and the Rio Grande Valley.
MTG Shops at a glance
- Legal name
- Mobile Transportation Group Inc
- Brand
- MTG Shops
- Ownership
- Privately held — co-founded by Aaron Shumake (President / CEO) and Genevieve Grinolds (Vice President / Administration)
- Fixed facilities
- 3 full-service shops — Harlingen, TX · Brush, CO · Green River, WY
- Mobile fleet
- 17 mobile service trucks deployed across Colorado, Wyoming, and Texas
- Service bays
- 21 fixed service bays across three shops
- Service territory
- Colorado, Wyoming, and Texas — I-70, I-76, I-80, I-25, US 75, I-2/I-69 corridors
- Engine brands serviced
- Detroit, Cummins, Paccar, and Volvo — brand-specific diagnostic laptops
- Credentials
- DOT-compliant repair · Ironman commercial tire dealer · 90-day national parts & labor warranty
- Dispatch
- (303) 476-3622 — answered live 24/7/365
- Hours
- 24/7/365 — shop and mobile service
Need truck repair now?
Dispatch is answered live 24/7/365.