United States Leadership Training Expert
You don't have to take my word for it; you can try it out yourself. Let's have a quick chat and see if you qualify for a complimentary (free) Leadership Skills Workshop. You'll experience what it's like to participate in one of our classes and learn to use those tools to overcome biggest challenges facing your leaders today. Just use the contact form below.
And, if you're still reading, here's a bit about me. I've spent over 20 years invested in learning and development, with most of my career working with a variety of companies, both small and large, to help them develop more advanced leadership practices. In order to attain a deeper understanding of the similarities and differences between them, I personally visited the offices of numerous managers and employees. I have direct experience assisting business owners and company leaders who were interested in maintaining and growing their businesses. I am passionate about my work and enjoy helping clients implement best practices that will ultimately lead to their success.
Crestcom International, LLC, has been doing all of this for much longer producing amazing results. I am the authorized business owner of Crestcom Nebraska and proudly facilitate their materials to have the greatest impact (and measurable ROI) for participants. With interactive learning courses offered in 22 languages and in over 60 countries, Crestcom has been providing business leaders with the support, training, and tools they need for over 35 years. In fact, Crestcom currently offers one of the most successful and widely used training programs among Fortune Magazine’s Top 100 Companies.
The Crestcom L.E.A.D.R. model helps key decision makers, business owners, and managers to become better leaders by implementing three elements of effective behavioral change: measured development, an implementation plan, and accountability. Their unique approach to training includes live facilitation, instructional videos with subject matter experts, and facilitated interactive exercises. Most importantly, every training module ends with an action plan to ensure each participant takes the information and incorporates it back into their company. Since my personal mantra in this area has always been Training, Implementation, and Accountability, I knew Crestcom was the perfect fit.
When people change the way they lead, they soon begin to see increased productivity and accelerated growth.
Please reach out, I'd like to see if we can help you, too.
James Mackiewicz, Authorized Crestcom Business Owner in Nebraska.
Featured Webinar
Understand Generational Differences to Build Connected Teams
Featured Ebook

A Leader’s Guide to Navigating the Five-Generation Workplace
Take the Crestcom Leadership Health Assessment
Crestcom’s Leadership Health Assessment consists of 30 targeted questions designed to help companies identify growth areas within their teams based on Crestcom’s 10 Core Leadership Competencies.
Featured Resources
How to Attract the Right Talent with Walt Brown
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How to Make Decisions in Uncertain Times with Scott Marshall
Uncertain times are a certainty in leadership. Whether it's economic volatility, organizational shifts, or global instability, leaders consistently encounter a high degree of uncertainty. Today, business leaders must navigate unpredictable complexities while...
Move Beyond Busyness with Peggy Sullivan
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Crestcom International Named a 2025 Top 20 Leadership Training Company by Training Industry
Training Industry Announces Selections for the 2025 Top Training Companies™ Greenwood Village, CO — March 13, 2025 — Crestcom International has been named a 2025 Top 20 Leadership Training Company™ by Training Industry, the leading authority in corporate learning and...