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Team Leaders

Great Team Leaders are Teammates First

We approach every project with a true collaborative mentality. Only by adopting a “We, Not I” mindset can we strengthen right partnerships — within our organization and outside of it — to exceed client objectives and strengthen our relationships in the commercial construction industry.

These seasoned leaders are responsible for building and maintaining strong client relationships and for growing capable, reliable teams that improve processes, speed delivery and support all facets of your commercial construction project.

  • Justin Kelton

    Justin Kelton

    Job Title
    President, Southwest Region
    Located in
    Vermont Technical College
    Bachelor of Science Civil and Environmental

    As President Southwest Region, Justin Kelton has leadership responsibility for all commercial markets within the Southwest, including Arizona, Nevada, New Mexico and Colorado. His career with McCarthy began as a laborer on a hospital construction project. After several years in the trades and a stint in the United States Marine Corps, Justin became a project engineer in 2001 with McCarthy in the Southwest. He was quickly made a project director, and within a few years his professional construction career advanced him to vice president, senior vice president and executive vice president prior to him moving into his current role.

    Over the years, Justin’s leadership has been instrumental in developing and expanding the region’s education services, including the launch of Job Order Contracting. In addition, his leadership has been essential to growing McCarthy's national solar, healthcare, municipal and commercial market sectors. He enjoys nurturing trusted relationships with clients and community leaders, while fostering an environment where engaged teams excel. He is currently serving the community as a board member of the American Heart Association’s Greater Phoenix Chapter and the Support Sky Harbor Coalition and is a member of the Arizona Builder’s Alliance American Society of Civil Engineers and WESTMARC.

  • Tim Barr

    Tim Barr

    Job Title
    Director, Business Development
    Located in
    University of Colorado
    Bachelor of Science, Business Administration

    A Colorado native and 20-year veteran of the architecture and construction industries, Tim serves as director of business development for McCarthy’s Denver office. With a focus on education, aviation, high-tech and commercial projects and a specialty in the integration of design and construction, he has assisted in delivering more than $600 million in built products during his career. Tim was awarded the 2016 SMPS Colorado “Business Developer of the Year” and was honored by San Diego Metropolitan Magazine in 2007 as part of its annual “40 under 40” honor roll.

  • Justin Peterson

    Justin Peterson

    Job Title
    Vice President, Operations
    Located in
    Willamette University
    Bachelor of Arts Economics and Mathematics

    Justin Peterson oversees company operations for McCarthy in Colorado. With two decades of industry experience, he has spent the past 14 years helping to deliver more than $875 million in construction solutions for clients across Colorado’s Front Range and Western Slope. Justin’s deep understanding of the Colorado construction marketplace and commitment to developing and maintaining strong relationships with area trade partners have helped him deliver exceptional results for clients in the region.

    Justin began his career with McCarthy in the field as a project engineer, moving up to assistant project superintendent, superintendent, project manager and project director before assuming his current role. His range of experience includes healthcare, solar, commercial office, education and more, with clients including Children’s Hospital Colorado, Denver Health, Sisters of Charity Leavenworth, Silicon Ranch and Kaiser Permanente. He holds a Healthcare Construction Certificate from the American Society for Healthcare Engineering and McCarthy’s ICC Class A General Contractors licenses. An avid outdoorsman, Justin is also active with Larimer County Boys & Girls Club, Ft Collins Vipers Lacrosse, and NFL Play 60 Flag Football.