Built in the Field. Sharpened at the World’s Top Firms.
Dwayne C. Barnwell’s career began not in a boardroom, but in the engine room. As a Gas Turbine Electrical Engineer in the United States Navy, he spent nearly a decade learning what it means to operate complex, high-stakes propulsion systems under pressure — where precision engineering, disciplined execution, and zero margin for error are not aspirational values but operational requirements. That discipline shaped everything that followed.
U.S. Navy — Gas Turbine Systems
Global Energy & Industrials
Operational Excellence
Top Global Strategy Firm
Enterprise Transformation
PMP | Six Sigma
From the Field to the Boardroom
After the Navy, Dwayne spent nearly two decades building deep operational expertise across the global oil and gas sector — working offshore and onshore on complex international projects, launching multi-million dollar product lines, managing global sales and business development, and negotiating large-scale international contracts. This wasn’t advisory work. This was operating at scale, in the field, with real accountability for results.
He then stepped into an executive role as EVP of Operational Excellence at a global energy services company, where he led a full transformation of the operations function — driving over $3 million in deployment and operational cost reduction and establishing the performance infrastructure needed to sustain those gains. It was here that Dwayne learned, firsthand, what operational excellence actually looks like when it’s built to last.
"The best strategy in the world dies in the conference room if the people implementing it don’t trust it, understand it, or have the tools to execute it. That’s the problem we solve."
Dwayne C. Barnwell — Founder & Managing Principal
Forged at the World’s Top Consulting Firms
Dwayne then made the transition that few operators ever complete: he joined the world’s most prestigious global strategy firm — the organization widely regarded as the gold standard for analytical rigor, intellectual discipline, and transformative client impact. Working within the Global Energy Practice, he advised multinational operators on strategy, operational performance, organizational design, and talent development, building the kind of structured thinking that turns complex problems into executable solutions.
He subsequently joined a leading enterprise transformation consultancy recognized for its ability to embed deeply within client organizations and deliver change that endures. There, as a Manager, Dwayne led engagements spanning change management, governance, risk and compliance analysis, sustainability and 2050 goal achievement, and AI prototyping for industrial applications. Success was never measured by the weight of the deliverable — it was measured by whether the organization actually changed.
The Credential Behind the Conviction
Dwayne holds a Master of Science in Finance and a Master of Science in Project Management — degrees that are not academic credentials alone, but frameworks that directly inform how Barnwell Advisory thinks about value creation, capital allocation, and disciplined program delivery. Combined with his PMP certification and Six Sigma training, these fundamentals are woven into how we approach every engagement — not as theory, but as operating practice.
Why Barnwell Advisory Exists
Dwayne founded The Barnwell Advisory Group because he recognized a persistent gap in the market: organizations that need elite strategic thinking and hands-on execution capability — and a partner who treats their outcomes as the only measure of success. Every engagement begins with a clear definition of the value at stake and ends only when that value has been captured.
The principal who sells the engagement manages the team that delivers it. As the firm grows and welcomes analysts who will develop into the next generation of senior practitioners, that standard of accountability travels with every engagement — from scoping through close.
