About Us

The Spark4 team - as you might expect from a Denver team building, leadership development, and corporate events company - is a dynamic collective of facilitators, outdoor enthusiasts, producers, and logistics experts with decades of experience working with executives, corporate teams, and non-profits. Don't let these smiles fool you, we are serious about bringing meaningful programs to life for our clients!

Our team is home-based in Denver and the mountain communities of Colorado where experiential learning and adventure programming go hand in hand with corporate meetings and events.

Our clients host their Leadership Development events in Colorado and beyond:

Aspen | Beaver Creek | Boulder | Breckenridge | Colorado Springs | Denver | Keystone | Vail

Chicago | Park City | Salt Lake City | San Francisco | Scottsdale | Seattle | Sun Valley |Tucson | D.C.

Spark4 Leaders

Cat Alletto

Founder, Facilitator & Producer at Spark4


Cat began her career in the outdoor industry in 1998 as a trip leader and trainer for Backroads Active Travel Company taking people on adventurous vacations in unique destinations. She shifted gears and brought her passion to the corporate space in 2006 as a founding member and lead facilitator at CBST Adventures. At Spark4 she connects with executives and leaders that want to build an energized culture of success across their organization. She works tirelessly behind the scenes leading her team to design and execute custom events and team development programs that achieve that goal. Spark4 seamlessly integrates active learning experiences and destination-driven retreats and also produces customized virtual events and video experiences with sister company, digiZuk.com.

Elizabeth "Ebeth" Miller

Director of Business Development


Elizabeth Miller oversees growth of new markets and partnerships for Spark4 as our Director of Business Development. She has been a valuable part of the Spark4 team since its inception, and moves into a leadership role with the company after many years as a team building facilitator. In addition to her work with Spark4, Elizabeth most recently led the sales efforts as the Director of Sales for the travel company Ski White Diamond from 2015 - 2019. Her strong operations and event management background and extensive knowledge of resort partnerships makes her an excellent addition to Spark4's management team. Outside of work, Elizabeth spends her time exploring the mountains on bikes and skis from her homebase in Breckenridge, Colorado and sharing her high alpine passions with her 7 year old son Jarle.

Byron Swezy

Head of Operations & Production


Byron has logged 25+ years in corporate team building events and video production. He was a sound engineer and technical designer dating (way) back to his high school days. In the 90s he moved to Colorado where he founded an outdoor adventure and leadership training company. Since then he's been simultaneously honing his skills as an event producer, artistic director, and videographer. Working with Spark4 means he gets to be at the top of his game in all of these areas of expertise! He is also the Co-founder and Owner of digiZuk and DragonFruit Video.

Natalie Raborn

Project Manager


When you work with Spark4 you may see Natalie or you may not. If you do see her, you will know it, she is 6ft tall and although she's lived in the USA for a long time, she still has that Aussie twang (and sense of humor). If you don't see her, don't fear - she's always hard at work behind the scenes with an eye on the details, thinking 2, 3, and 4 steps ahead to deliver the best possible experience and impact for your group. When not on project for Spark4 she runs her own health & fitness coaching business (HighRoadCoaching.com) and is also that person you'll see out on a mountain bike, winning world championships or pedaling crazy singletrack. Natalie holds a B.S. in Business from the University of Denver an MBA from Illinois State University, and if things get real, we got you covered, she's a certified mediator.

Jamie Shapiro

Founder and CEO of Connected EC


Jamie Shapiro is a leading authority on connecting wellness with executive leadership and performance. Having experienced burnout in the corporate world, she understands the incredible pressure we face in our lives and the difficulty in staying connected to professional and personal goals in demanding environments. She left the corporate world with a mission to make changes for people and organizations. Jamie’s vision is to bring a new form of holistic coaching to people in the business world. She helps people to develop a keen awareness of how both their health and mindset have an effect on their capacity to reliably tap into their capabilities. Jamie brings executive coaching and wellness together, creating a new approach to leadership, health and outstanding personal, professional and organizational performance.

Kendall Colman

CEO, Founder of Total Coaching Systems


Kendall is a highly respected national provider of executive coaching, elite business presentation coaching, and media preparedness training. Over the last 17 years, C-level executives, public officials, best-selling authors, and business people from almost every industry have benefited from Colman Coaching’s personalized, dynamic, and rigorous communications and leadership training. Kendall combines her real-world coaching experiences in manufacturing, healthcare, biotechnology, energy, financial services, and banking to help integrate and learn from the challenges of executive leadership. She facilitates executive engagement through innovative, scalable solutions that help leaders coach, challenge, and retain top talent.

Tracy Martino

Founder, CEO of Executive Return


Tracy is a Neuroleadership consultant focusing on how to create trust, engagement, and communication with the tools of Conversational Intelligence, HeartMath and NeuroScience. She is the Author of the Best-Selling book, “Cracking The Code To Success” with Brian Tracy and her work has appeared in Forbes, Huffington Post, Positively Positive, The Master Shift, and Elephant Journal. Tracy has had a long history in the corporate world starting 2 decades ago in medical device sales but her passion for leadership and corporate learning took the front seat inspiring her to start a coaching and training business in 2015. He clientele spans over many different industries including healthcare, retail and technology. Her memberships include The National Association of Experts, Writers, and Speakers, The Neuroleadership Institute and National Association of Professional Women.

Jake Quigley

Founder, InspiredShifts Training and Coaching


Jake’s interest in organizational development and team dynamics has grown through participation as an ice hockey player and coach, careers in the non-profit and outdoor industries, and passion for wilderness pursuits and outdoor sports. Through his own experiences, Jake has seen teams perform at their best; whether it’s winning a championship, achieving a mission, or summiting a peak. His true interests lie in the areas of experiential learning, group facilitation, and personal coaching. Jake completed his Masters’ in Organizational Studies at The University of Denver. He currently leads experiential facilitation at Outward Bound Professional and Dartmouth College, and owns a personal & professional coaching business. Cat and Jake's paths first crossed back in 2010 when they were developing corporate community service programming. When not working, you can find Jake skiing, biking, or hiking in the backcountry with his wife Jeanie.