Mark Holtmann

Mark Holtmann: Email & Phone Number

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Project Director at W.E. O'Neil Construction|Littleton, Colorado, United States

Position:

Project Director at W.E. O'Neil Construction

Location:

Littleton, Colorado, United States

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Last updated: 2026-07-03
Updated: 2026-07-03

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Work Experience 19 years

Project Director at W.E. O'Neil Construction

Jan 2025 - Current

Senior Project Superintendent at W.E. O'Neil Construction

Sep 2022 - Dec 2024

Project Superintendent at W.E. O'Neil Construction

Sep 2014 - Sep 2022

Superintendent at Glacier Construction Co., Inc.

Jan 2012 - Sep 2014

Project Engineer at Glacier Construction Co., Inc.

Jan 2007 - Jan 2012

Mark Holtmann started working in 2007, then the employee has changed 1 company and 4 jobs. On average, Mark Holtmann works for one company for 3 years 11 months.

Their professional focus is Asta Powerproject, Autodesk Build, and Concrete across 3 core areas.

Mark holds Procore Certified: Project Manager (Core Tools), Fall Protection, and Scaffold Qualified Person certifications.

Education

Bachelor's degree at Colorado State University

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