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 Chairman

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 Chairman. 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., CEO

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

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.

Brian Mortimore, President

Brian has been with Calcon since 1999 and is currently a 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.

Jim Sexton, CFO and Vice President


Jim Sexton has dedicated his career to construction-related accounting and finance since relocating to Colorado in 1999. Joining the Calcon Team in 2013, he brings extensive expertise as a Certified Public Accountant (CPA) and Certified Construction Industry Financial Professional (CCIFP). Jim earned his Bachelor of Science in Accounting from Northern Illinois University.

Currently serving as CFO, Vice President, and Stockholder, he oversees all facets of accounting, financial reporting, information technology (IT), and human resources (HR).

Outside the office, Jim finds solace in golfing and exploring the great outdoors of Colorado.

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.

BOULDER JEWISH COMMUNITY CENTER

BOULDER JEWISH COMMUNITY CENTER

Boulder, Colorado

When it came time to construct the Boulder JCC, a two-story educational community heritage center, we were on a mission to create something beautiful, functional and unique. This construction included a wing for daycare and education, a gymnasium and fitness center, a full commercial kitchen, a community hall with a stage, a library, administrative offices and a large outdoor gathering area, complete with a fireplace.

We chose to include high-quality finishes, so this would be a building visitors were happy to be in; the community hall contains six suspended, maple “clouds,” engineered to a dimension of 10’x48’0,” and a stage with event lighting and state-of-the-art audio/visual setup.
The entry of the main lobby has a sandstone wall that stands 36’0” tall by 80’0” long with 21 openings, porcelain floor tile, a gas fireplace and cedar ceilings with a 40 foot-long sloped skylight.

“At each step in the process, we were beyond impressed with Calcon’s integrity, diligence, friendliness, and heart. Calcon made this construction project a positive experience for our entire community.” -Scott Peppet, Boulder JCC

Total: 52,444 SF
Owner: Boulder Jewish Community Center
Architect: RB+B Architects
Awards: LEED Certified, Commercial-Institutional Projects Crystal Award, Commercial Space Judges’ Merit Crystal Award

Back to Community Projects

Let’s build a better Colorado together.

Contact the Colorado construction experts at Calcon today to turn your construction dream into a reality.

Contact Us

2270 W. Bates Ave.
Englewood, CO 80110
303.762.1554

WE BUILD
CONFIDENCE | TRUST | FOR COLORADO’S COMMUNITIES | SMART SOLUTIONS | INNOVATION | PREMIUM QUALITY | WITH THE FUTURE IN MIND | EXCELLENCE | BECAUSE WE LOVE TO

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