Executive Team

“The Management Team at MHES combines a personal touch and hands on management, always pushing for results and never accepting the status quo”

John-Mark Matkin, P.E.

| CEO/President |
Education:
Texas A&M University, College Station, TX
Bachelor of Science, Civil Engineering – 1996

John-Mark’s project management experience includes municipal utility projects, residential, and commercial projects as well as flood studies and flood plain reclamation projects.

Ken Kolacny, P.E.

| Vice President |
Education:
University of Texas, Austin, TX
Bachelor of Science, Civil Engineering – 1995

Ken’s diverse management experience includes municipal utility projects, sanitary sewer lift stations, water treatment plants, master planned residential communities and commercial projects, as well as, flood studies and flood plain reclamation projects.

| kkolacny@matkinhoover.com |

Garrett Keller, P.E.

| COO/Vice President |
Education:
Texas A&M University, College Station, TX
Bachelor of Science, Civil Engineering

Garrett supports the MHES federal design and construction team with a high level of detail and focus to ensure project efficiency and to provide clients with superior products and services. Garrett facilitates federal and municipal infrastructure design, commercial and residential planning, and has performed such tasks as federal construction management and other related work.

| gkeller@matkinhoover.com |

Joshua Valenta, P.E.

| Vice President |
Education:
Texas A&M University, College Station, TX
Bachelor of Science, Civil Engineering

Josh’s roles within the organization include a diverse range of management tasks and project supervision to include residential, commercial, and government work. Josh facilitates projects from a master plan and entitlement phase through to construction administration, supporting the project with thorough communication and value engineering at every step along the way.

| jvalenta@matkinhoover.com |