Calhoun W. Cox, Jr., Founder

Cal Cox grew up in Seneca, South Carolina and received his Bachelor of Science from Clemson University in 1964.

He served in the Army Corps of Engineers/Special Forces for seven years and is a veteran of the Vietnam War.

Cal worked in the construction industry for 36 years and founded Calcon Constructors in 1981 in Denver, Colorado.

Throughout the years, Cal served as the President of the Associated General Contractors of Colorado, as well as on numerous boards and committees. 

James P. Bosshart, Co-Founder and CEO

Jim graduated with distinction from Iowa State University with a Bachelor of Science in Construction Engineering.

Jim co-founded Calcon Constructors in 1981 and currently serves as Chief Executive Officer. He is involved in all business aspects, including marketing, estimating, project management and office management.

Jim is very involved in the industry; he has served on many committees, including a position as Executive Committee Board of Directors for the Associated General Contractors of Colorado.

Joseph S. Gallion, Jr., President

Joe, who received his education from Colorado State University, has been with Calcon since 1982, and currently serves as the company’s President.

Joe is responsible for all business aspects, including: marketing, estimating, project management and field management.

He remains very active in the construction industry, and has held positions as the Chairman of Colorado Neurological Institute, Chairman of the Board for Southwest Family YMCA and as the past President of the Construction Industry Training Council.

Presently, Joe sits on the board of AGC Colorado and is a member of the National Western Stock Show.

When not in the office, Joe enjoys golfing, skiing, cycling and traveling.

Jim Kohler, Vice President

Jim Kohler, whose experience encompasses both architecture and construction, joined the Calcon Team in 1994.

He graduated from Virginia Tech with a Bachelor of Architecture and a Master’s of Science in Construction Management.

He is a Vice President and a stockholder, and also serves as a Senior Project Manager and Estimator.

Jim handles pre-construction, estimating and project management for Calcon’s projects, seeing them through construction, closeout and warranty

He has been involved with some of Calcon’s more notable projects and is an active member of the Association of General Contractors.

When not in the office, Jim loves ski racing, dirt biking and cycling.

Brian Mortimore, Vice President

Brian has been with Calcon since 1999 and is currently a Vice President of the company. He is a proud CSU alumnus and graduated with a Bachelor’s degree in Construction Management.

With over 20 years of experience in Project Management, Brian is a vital asset to Calcon’s customers and vendors.

Brian has completed many notable projects for Calcon in the retail, technical, healthcare and mixed-use categories.

He is LEED AP certified and a Certified Healthcare Constructor.

In his free time, Brian enjoys golf, the outdoors and spending family time with his wife and twin girls.

Jeff Johnson, Vice President

Jeff joined Calcon in 2007 and is currently a Vice President of the company.

He has a Bachelor’s degree in Construction Management from CSU and brings 19 years of Project Management experience to the table.

Jeff has completed many of Calcon’s most notable builds in the healthcare industry, including: specialty medical facilities, medical office buildings and hospitals.

Jeff is a LEED Green Associate, Certified Healthcare Constructor and a member of CAHED and ASHE.

When not at work, Jeff enjoys time with his wife and two girls.

Jim Van Zant, Vice President

Jim joined the Calcon family in 1986 and has been in involved in many of our most notable builds.

Jim graduated from Colorado State University with a Bachelor of Science degree in Industrial Construction Management.

He is currently a Vice President and also serves as a Senior Project Manager. He handles pre-construction, estimating and project management for Calcon’s projects, seeing them through construction, closeout and warranty

Jim presently serves as Treasurer and on the Board of Directors for the Construction Industry Training Council (CITC), which offers apprenticeship programs for the construction trades.  He is also a member of the American Society for Healthcare Engineering and has received their Healthcare Contractor’s Certificate.  He has served as an instructor for a project management class offered by Associated General Contractors.

When not in the office, Jim enjoys the outdoors, his family and his ever growing motorcycle collection.

Home

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Four points at
steamboat springs

Located at an elevation of 10,000 feet in Steamboat
Springs, this 14,000 SF lodge was constructed in a
period of 203 days.

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The Daniel L. Ritchie Wellness and
Sports Center at University of Denver

This Ace Award winning project, totaling 450,000 SF, consisted of building the
Burns Ice Arena, Hamilton Gymnasium, Magness Arena, William Bell Tower,
Marion Gottesfeld Room, El Pomar Natatorium, and the Gates Field House.

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Sky Ridge Medical Campus

Totaling 590,110 SF, this build included medical office buildings,
multiple specialty medical facilities and even a 1,000 vehicle
parking structure.

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2300 Welton

Located in Denver, CO, this transit oriented multi-family
apartment complex totals 258,197 SF and includes 2 stories of
underground parking.

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Fortune 100 Data Center

Located in Colorado Springs, CO, this 290,900 SF project consisted
of a new dater center building, a remodel of an existing server room,
a power distribution unit and a well.

LEARN MORE
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In my 31 years of experience as a construction manager, I have found very few general contractors that are in the same league as Calcon… I recommend them without any reservation.”

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Four points at
steamboat springs

Located at an elevation of 10,000 feet in Steamboat
Springs, this 14,000 SF lodge was constructed in a
period of 203 days.

LEARN MORE
default gravatar

In my 31 years of experience as a construction manager, I have found very few general contractors that are in the same league as Calcon… I recommend them without any reservation.”

<< Prev
Next >>

Calcon Constructors is proud to be part of Colorado’s construction community. From day one, Calcon has consistently applied integrity, innovation, and insight throughout its business practices, enabling the company to thrive. This is due, in no small part, to the solid business principles of our founders; our extensive knowledge, passion and commitment to giving back to our communities has allowed us to perpetuate and enhance the Rocky Mountain lifestyle, environment and beauty of our home state.

We Build:
On our relationships with people, With Colorado communities at heart, Strong teams. Strong teams build wonderful projects, A balanced focus on value and safety, With the future in mind, On our relationships with people, With Colorado communities at heart, Strong Teams. Strong teams build wonderful projects, A balanced focus on value and safety, With the future in mind,

Construction isn’t for amateurs. There’s a multitude of companies to choose from, so how do you select the one that will ensure that your project receives the highest standards of planning, execution, attention to detail and service?

With countless construction professionals vying for the same clients and projects, many deliver the same mundane messages—“We build better buildings,” “We build quality,” or “Building the future.” So, you might wonder, “How are any of these companies different from one another?” More importantly, you might ask, “How will I know that this construction company will go the extra mile to complete my project and give it the kind of attention it requires?”

Enter Calcon Constructors. At Calcon, we don’t just deliver a message—we operate by it. We’ve been in the construction business for over a quarter-century and, in that time, we’ve developed and fine-tuned a sophisticated strategy that harnesses everything a construction company should embody and practice—an established reputation, a passion for the communities built within, pride in performance, leadership through innovation and providing exceptional quality without sacrificing safety.

WHY CALCON

From the initial discussion of planning your projects to assembling the highest quality team, across every aspect of the project, our talented professionals drive cost-effective solutions on your behalf.

ABOUT US

We do what we say and more. In constantly striving to go above and beyond for our clients, we serve their needs by providing innovative solutions, tailored services, and a premier experience.

OUR PROJECTS

We have helped hundreds of clients design and execute project solutions all across the Front Range. With experience spanning a variety of industries, learn how we can support you.

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