About L555

Our customized training program designed to support Catalytic Leaders in achieving their God given dreams.

Faith & Values


L555 Founder and President, Mark Orr will often share the story of a 10-ton truck stuck in a pothole on a muddy road. Like many of the problems we attempt to address as leaders, one or two people try to push and shove the truck out of the hole for a long time, without so much as a wiggle. They soon give up and walk away, “let somebody else give it a go, I’ve done my part,” they say. Individuals and organizations run out of funding or time and walk away, leaving big systemic problems largely unsolved after many years. What does it take to get the truck out of the hole? What does it take to see breakthrough? It takes a leader that will find at least five other pushers to position themselves at different parts of the truck, motivate and re-energize the first two pushers to get back on the job—and then push, altogether, with sustained force, until the truck finally moves. It takes the kind of leader that will look at the big picture, affirm the value of each player, and inspire collaborative and sustained action.

L555 began in 2011 as a pilot project to provide leadership training to passionate young change-makers in Uganda. The model that encouraged servant-leadership, as opposed to the autocratic tendencies that often infiltrate even the Church was widely welcomed by both university students and experienced national leaders alike. In 2016, L555 transitioned from a promising pilot—that continues on to serve in Uganda—to a global movement that supports emerging catalytic leaders, primarily through our LeadingNext incubator. 


We value diversity. Our leaders come from a diverse selection of occupational backgrounds, countries, and ages. We all are committed to following Jesus and mirroring His light in the world. 

Mark Orr

Founder & President
Mark was raised as a missionary kid in Brazil. He has committed his life to helping emerging leaders be more effective, and ultimately the Church more able to carry out her Mission in the world. He has previously served in global refugee mission work. Mark and his family are Canadians, but have lived in the UK, Greece, and Uganda over the last 10 years.

David Stoesz

Chief of Staff & Director of Pastoral Care
Dave is a Canadian with an extensive background of serving in addiction recovery, Biblical Counseling and Spiritual Direction for individuals of all ages and backgrounds. Dave has also previously served with the Canadian Bible Society. Dave both manages staff, as well as provides pastoral care, accountability, attention to prayer, and a listening ear to the team, volunteers and leaders world-wide.

Winnie Namayanja

Chief Catalyst Assembli & LeadingNext Coordinator
Winnie is Ugandan. She has a passion for connecting front-line mission workers with the knowledge, skills and tools that they need to strengthen their impact. She holds an MSc in International Development from the London School of Economics. Winnie oversees the development of our Assembli platform, and helps manage the LeadingNext process—to help all leaders get the most out of the 3-year journey.

Mary Karooma-Brooker

Board Member
Mary is British-Ugandan, and one of 7 members of our Board of Directors. Mary is passionate about the training and equipping of emerging catalytic leaders. Mary is also a land-scape architect in the UK with a vision for re-designed public spaces in urban areas that reflect God’s love for family and goal for community living.

Carl Cripps

Chief Storyteller
Carl has sailed and served many years on the mission field in Asia, and with indigenous people groups. He is deeply people-oriented and maintains a very positive team atmosphere. Carl attentively teases out the team and leader stories, edits and presents these to our community of friends and partners. He lives in Canada with his wife Lenny, and their three children.
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