ESCO is a turnkey contractor that specializes in earthmoving and underground utilities. We pride ourselves on our ability to complete complex and challenging projects that other contractors may turn away. Focused on providing the best solution for a project, we work side-by-side with project owners to create the best product at the best value.

Clients benefit from having one point of contact, one schedule to manage, and the confidence that their project is going to be completed on time and within budget.

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At ESCO, we believe that quality work is the only means to a long lasting reputation. Since 1944, our company has operated based on these core values:

  • Be ethical in all aspects of business
  • Work as a team and succeed as a team
  • Build open and honest relationships with communication
  • Hold yourself to the highest standards
  • Create a safe, open, and fun working environment
Our History


Pat Clark

President  |  pclark@escomailbox.com

Pat Clark is the third-generation owner and President of ESCO. With over 40 years of construction experience, Pat is very well-versed in field strategy and heavy equipment. He is highly involved in equipment department and maintaining vendor relationships.

Eric Clark

Vice President  |  eclark@escomailbox.com

Eric Clark is the fourth-generation owner and Vice President of ESCO. He manages the overall performance and direction of the business. In addition, he pursues new business opportunities and maintains the valuable relationships with our strategic partners.  

Gabe Wallace

General Manager  |  gwallace@escomailbox.com

Gabe Wallace oversees the estimating, project management, and business departments at ESCO. With his extensive background in large scale projects, Gabe has implemented a great deal of new management and cost control tactics.

Steve Jones

Controller  |  sjones@escomailbox.com

Steve is the company’s Controller, coming to ESCO with over 20 years of senior corporate financial experience.  His focus is on maintaining a balance between establishing strong financial controls, and keeping a lean operation with minimal waste.

Tim Persch

Operations Manager  |  tim@escomailbox.com

Tim serves as Operations Manager for ESCO. With over 35 years of heavy civil and utility experience, his priorities are safety, quality of work, and keeping all ESCO projects on schedule.

Dave Marshall

Division Manager  |  dmarshall@escomailbox.com

Dave oversees all ESCO Mountain Contracting projects. This division operates locally in Evergreen with a focus on roads, excavation, septic systems, land clearing, and water and sewer lines.