2026 Speakers

Alan Barnhart came to Christ in high school at a Young Life camp in Colorado.

He has an amazing wife, Katherine, and six children (37, 35, 33, 30, 28, and 25), three daughters-in-law, two sons-in-law and eleven grandkids.

Alan has a boring resume—he worked for the same company since he was 10 years old and has recently stepped down as the CEO after 39 years in that position. He now serves as Chairman. Barnhart Craneand Rigging Company is a Heavy Lifting and Heavy Transport company based in Memphis, TN with offices in 60 cities across the US and Western Canada. By God’s grace, the company has grown an average of 18% per year for 39 years. Barnhart provides services to heavy industry and construction, focusing on power plants (wind, nuclear, and fossil fuel) and the petrochemical industry.

Alan’s fear of affluence caused him to cap his lifestyle. In 2008 Alan and Katherine, along with his brother Eric, transferred the stock of the company to a Christian trust. Since then, 5 other companies with a similar ownership structure have joined together to form the Kingdom Companies Group (KCG). The company profits for each company are invested in strategic missions through a collective they call the GROVE Group. KCG team members and spouses (about 60) work in six teams to develop Kingdom investment portfolios in hard areas of the world that inform the decision-making process of the GROVE Board. Over 60 team members have traveled internationally in that effort.

Alan seeks to affect other companies through involvement in the Kingdom Companies Group and C12. He is a trustee KGC Voting Trust and serves on the KCG Counsel. He is active in a local C12 group and serves on their board of directors. Alan attends a small neighborhood church and is an active backpacker.

Dr. Aubrey Stewart is a public policy data scientist, leadership practitioner, and community builder dedicated to advancing purpose-driven leadership across government, academia, and society. He earned his PhD in Public Policy and Administration at Florida International University as a Fulbright Scholar, where his research focuses on governance, public safety, and development in the Global South. Dr. Stewart has served in senior research and policy roles within Jamaica’s Ministry of National Security and has collaborated with international organizations including the Inter-American Development Bank (IDB), the European Union (EU), and United Nations agencies on community-building initiatives across Jamaica and the wider Caribbean.

From humble beginnings, Dr. Stewart has used his God-given talents to contribute to the design and evaluation of national public safety and development initiatives aimed at expanding opportunity and improving outcomes for vulnerable communities. His work bridges rigorous data analysis with real-world impact, helping leaders make evidence-based decisions that strengthen institutions and transform communities.Beyond academia and public service, Dr. Stewart is the Founder and Chairman of Serve It Forward Jamaica, a growing volunteer movement focused on community mobilization and service. Through medical missions and outreach initiatives across Jamaica, the organization has served more than 1,000 patients since inception in 2025, by providing free medical care, medication, and access to educational resources, while mobilizing professionals and partners to support vulnerable communities with compassion and innovation.

Dr. Stewart’s leadership and service have earned national and international recognition, including honors from the Obama Administration, Her Majesty Queen Elizabeth II, and the Government of Jamaica for youth leadership and public service. Rooted in faith, service, and responsibility, he challenges leaders to align purpose with action and impact withcalling.

Steve Miller is a founder and president of Millwood, Inc., a leading provider of new, used and reconditioned pallets, industrial packaging equipment, systems and consumables and erosion control products and services.

In 1985 at the age of 19, Steve opened Millwood in Holmes County, Ohio, in the same location where his father’s business was destroyed by a fire. In 1996, Steve and his business partner Chip Trebilcock joined, forming Millwood, Inc.

Today, Millwood has over 2,000 team members in 40 facilities throughout the contiguous United States. Millwood’s mission is that all who come in contact with Millwood would clearly see the love of Christ in all that we do. As partners, Steve and Chip have made it their mission to provide every team member the opportunity for personal, professional and spiritual growth.

To accomplish this mission, Millwood has a staff of over 35 chaplains to come alongside team members as they navigate life’s challenges. The Chaplains also organize individual growth events, including marriage retreats and team development getaways. Millwood also provides summer camp opportunities for all team members’ children. Additionally, team members are invited to attend annual mission trips, both domestic and abroad.

As a volunteer and board member forJohn Maxwell’s EQUIP organization, Steve has traveled the world training leaders in Biblical leadership principles. Because of his efforts to develop leaders internationally, Steve received an Honorary Doctorate in Leadership Studies from the Ohio Christian University. He also serves on various boards that help fulfill the mission of faith in the marketplace.

Steve and his wife, Julie, live in Canton, OH with their three sons.

Whitney Putnam is a builder of people, teams, and movements.

As the VP of Marketing & Communications for the Global Leadership Network (GLN), Whitney rebuilt and restructured the organization’s marketing department from the ground up by cultivating a high-performing, deeply healthy team culture that fuels one of the most influential leadership movements in the world. The Global Leadership Summit now reaches more than 350,000 leaders annually across 100+ countries, and Whitney leads the strategy, messaging, and creative direction that supports that global impact.

But Whitney’s true passion isn’t just building brands; it’sbuilding healthy teams.

She believes no leader should feel alone. Her leadership philosophy is relational at its core: healthy teams create lasting impact, and men and women working together—leveraging their unique strengths—unlock maximum Kingdom influence. Whitney is known for developing both men and women to collaborate with clarity, trust, and courage. She builds with people, not around them.

In addition to leading teams, Whitney is a sought-after speaker and facilitator who creates environments where honest conversation can happen. Whether on stage, in boardrooms, or in small-group settings, she helps leaders move from isolation to alignment and from vision to execution. Her approach blends strategic clarity with emotional intelligence, empowering leaders to grow personally while building collectively.

Whitney also serves as the host of the Global Leadership Network Podcast, where she engages world-class leadership voices and helps translate their insights into practical application for everyday leaders.

At her core, Whitney is driven by a deep conviction: leadership is relational, impact is built together, and healthy culture is never accidental, it’s intentional. She and her husband are raising three daughters and are passionate about modeling courageous, collaborative leadership at home and in the world.

John Olinger spent a decade as a Brand and Digital Marketing leader for Nike and Jordan Brand, including three years captaining Global Marketing for Kobe Bryant. He reached a career inflection point after the unexpected passing of his father and left Nike in 2022 to become a consultant, author, and speaker. His first book, Worthy Wins, came out in 2025 to help individuals and organizations win in the places that matter most. John was recently tapped to become the President of Unitus, a Christian footwear and apparel brand, started by NBA player Jonathan Isaac. John is married to his amazing wife, Erin, and they are raising 3 energetic boys in Florida.

Heather Wilson is the co-founder and CEO of GiveSendGo, the world’s leading freedom-focused crowdfunding platform built on faith, generosity, and hope. Through GiveSendGo, Heather has helped lead one of the most recognized crowdfunding movements in the world while navigating high-profile challenges, rapid growth, and moments that tested courage, conviction, and leadership.

As a business leader, speaker, author, wife, and mom of six, Heather is passionate about helping Christians see business not just as a career, but as a ministry and calling. She believes the marketplace is one of the greatest mission fields of our time and encourages leaders to build with integrity, boldness, generosity, and dependence on God.