Meet Greggory
Built for High-Stakes Environments
Greggory Markham, Managing Partner of Markham Operating Group, is an operator at heart. A U.S. Naval Academy graduate, former nuclear submarine officer, and MBA, he learned early how to lead people, solve complex problems, and deliver when the stakes are high. Since leaving the Navy, Greggory has led billion-dollar enterprise transformations, large-scale operations, and growing companies working to reach their next level.
What Greggory enjoys most is helping people and organizations succeed. He is known for digging into complex problems, following the data, asking the questions others may overlook, and turning ideas into practical action. Having led teams ranging from a handful of people to organizations of more than 1,800, his approach remains simple: understand the landscape, take care of the people, and deliver results.
Operational Excellence, Learned Under the Ocean.
Greggory learned to lead where failure was not an option. He planned and executed complex operations aboard a $3 billion national asset, leading overseas deployments, multi-force exercises, and special operations where disciplined execution, risk management, and accountability were expected every day. He developed a first-of-its-kind work control system adopted across thousands of personnel and personally reviewed the most critical maintenance activities to ensure flawless execution.
Crisis Leadership & Visibility
Selected for strategic coalition operations, Greggory led international teams through high-visibility missions, unexpected executive transitions, and rapidly changing operational environments without disrupting active programs. He transformed fragmented operational data into real-time situational awareness across thousands of personnel and hundreds of millions of dollars in assets, enabling leaders to make faster, better-informed decisions.
Proven Enterprise Impact
Those experiences shaped the leadership philosophy Greggory brings to every client engagement today. Since leaving the Navy, he has applied the same principles to help organizations improve operations, lead digital transformation, scale leadership teams, accelerate growth, and prepare businesses for their next stage of success.
Core Philosophy
Whether serving founder-led companies, private equity-backed organizations, or enterprise businesses, his focus remains the same: bring clarity to complexity, build scalable operating systems, and turn strategy into measurable results. The principles forged under the ocean don't retire. They scale—from the control room of a nuclear submarine to the executive team of a growing business.
Hands-On Execution That Creates Sustainable Value
Greggory believes strategy has little value unless it can be executed. His passion lies in helping organizations move beyond ideas and build the structure, leadership, and operating discipline required to achieve lasting results.
Systemic Problem Solving
Working alongside founders, executive teams, and private equity partners, Greggory quickly brings clarity to complex challenges, aligns leadership around the right priorities, and creates accountability that drives measurable progress. Rather than treating symptoms, he focuses on the systems behind the business—how people, processes, technology, financial performance, and culture work together to support sustainable growth.
Embedded Partnership
Known for his practical, hands-on approach, Greggory isn't a consultant who delivers a report and walks away. He partners with leadership teams to solve problems, make difficult decisions, and implement meaningful change. Whether scaling a growing company, leading a transformation, improving operations, or stepping into an interim executive role, his objective is always the same: build stronger organizations that continue to perform long after the engagement ends.
