Leadership Team


Jack Lackey – Owner

Growing up in the ABS Colorado business, Jack Lackey learned a lot from his father, including the idea that treating his employees like family was the best way to get the most from them in return.  Jack says “my employees are #1, my clients are #2.” While that seems a crazy statement, he feels strongly that taking care of his team ensures they will take care of his ABS Colorado clients. It has proven true–after taking over the reins of the company, he has grown it exponentially in number and size of projects, as well as adding many skilled and valued employees. Jack participates in many outside volunteer activities, including the Workforce Development Committee for the Association of General Contractors, which seeks to develop the next generation of construction industry workers.

Jack’s perfect weekend would be spending time in Summit County skiing, hiking, biking and fishing with his family.


Nathan Fletemeyer – CEO

Nathan strives to “make his client look good to their client” and has been in the construction industry since he was a teenager. He loves working with his hands and he enjoys the teamwork at ABS Colorado. He studied Construction Management at CSU and did an internship at a General Contractor before coming to ABS Colorado in 2004.

Nathan enjoys nature photography, and if he won the lottery, the first thing he would buy is a beach property for his parents.

Sydeny Amos

Coming Soon – Controller

Diane Marx – HR Manager

Diane brings an extensive background in Human Resources, Payroll, Accounting, Office Management, Project Management, Information Technology, and Retail Sales & Management to Associated Building Specialties. Over the course of her career, Diane has been a key contributor to the growth and success of organizations in both the non-profit and for-profit sectors, providing extensive leadership and operational expertise focused on a variety of Human Resource and other related activities.

Diane holds a certification in HR Management from DePaul University as well as certification as a SHRM Senior Certified Professional. After being a life-long Chicagoan, Diane relocated to Colorado in 2009 and quickly became immersed in cheering on the Denver Broncos, hiking, camping, snow skiing, biking, triathlons and home brewing craft beer.

Brian Milner

Brian Milner – Director of Operations

Brian brings over 20 years of construction industry experience along the Colorado Front Range including commercial HVAC, commercial general contracting, as well as Director of Estimating and Project Management in the oil and gas industry. He holds a Bachelor of Science in Business Administration (Finance) from Kansas State University and an MBA from the University of Wyoming. Brian enjoys spending his free time with family and friends and is an avid outdoorsman.


Dan Lackey

Dan Lackey – Founder (Retired)

Coming Soon!