The data center industry is at an inflection point. AI is rewriting the compute requirements of every major enterprise, cloud provider, and infrastructure operator. The demand is clear. The supply is not.
Existing facilities weren’t designed for GPU-dense, high-power AI workloads. New greenfield development takes years and carries enormous risk. Markets with available power are competitive and move fast.
TAG was founded to bridge that gap—by converting strategically located existing assets into purpose-built, AI-ready infrastructure at a pace the market demands.
Our development model is built on three reinforcing principles:
Tim Caulfield is a results-oriented global business executive with more than 20 years of experience in enterprise-class data center services, cloud infrastructure, and managed services. He has led organizations through complex periods of growth and transformation—growing revenue, retaining talent, and expanding technical capabilities while ensuring operational excellence for customers ranging from startups to Fortune 500 enterprises.
Tim has held senior leadership roles at industry leaders including Savvis, Cable & Wireless, and Exodus, where he managed hosting businesses with revenues as large as $470M and played a key role in globalizing enterprise-level web hosting as a sophisticated IT solutions category. He also founded and led Capto Consulting, a management consulting firm specializing in IT outsourcing and technology transformation, where he served as the firm’s chief expert on the hosting and data center market.
Tim holds an MBA from the University of Oregon and a BA from Clark University. In 2012, he was named Most Admired CEO (Small, Privately Owned Companies) by the San Diego Business Journal.
Ken Lee brings over 25 years of expertise in finance, capital allocation, corporate development, and strategic advisory across the data center, telecom, and infrastructure sectors. His experience spans both the financial and operational sides of the industry—giving him a rare ability to evaluate infrastructure opportunities from a capital efficiency, market timing, and execution standpoint simultaneously.
Ken has held senior roles at Evoque Data Center Solutions, where he served as CFO and later EVP of Corporate Development, overseeing financial strategy and M&A activity for a global colocation platform. He has also held leadership roles at Quadranet and Sandstone Energy Finance, and holds an advanced degree from Columbia University.
At TAG, Ken leads financial strategy, capital structure, and corporate development—ensuring each development opportunity is evaluated with the same rigor applied to the infrastructure itself.
Bill Leedecke brings over 30 years of expertise in data center engineering, infrastructure design, and operational leadership. His career spans some of the most demanding mission-critical environments in the industry, giving him a deep understanding of what it takes to build and operate infrastructure that performs reliably under high-density, continuous load.
Bill served as EVP of Operations at Evoque Data Center Solutions, where he oversaw global data center infrastructure across a large international portfolio. Prior to Evoque, he spent 25 years at The Vanguard Group managing mission-critical infrastructure and global data center operations for one of the world’s largest investment management firms.
At TAG, Bill leads engineering standards, infrastructure design, and operational frameworks—ensuring every facility is built to perform from day one and scale as demand grows.
John Diamond is a seasoned data center engineer and developer with decades of experience spanning design, construction, and operations. His background is grounded in the highest-reliability environments in industry—beginning with a decade in commercial nuclear power plant operations, which established his foundation in managing high-availability, mission-critical technology infrastructure.
John has led engineering and design teams at Evoque Data Center Solutions, where he served as VP of Engineering and led the transformation of 31 international data centers acquired from AT&T. He also served as General Manager at Netrality, and has consulted on design, construction, and operational analysis for organizations including Adobe, eBay, Google, and Equinix. His earlier career included management of high-profile enterprise technology centers at Salomon Smith Barney / Citigroup.
At TAG, John leads site conversion design and construction—translating existing assets into purpose-built, AI-ready facilities with the engineering discipline his background demands.
Margie Sims brings over 20 years of leadership experience in technology sales, revenue operations, channel strategy, and client success within the data center industry. She has a proven track record of building high-performing go-to-market organizations, driving revenue growth, and delivering the kind of client experience that turns first deployments into long-term partnerships.
Margie has held key leadership roles at Evoque Data Center Solutions, Dizzion, and ViaWest, where she drove operational excellence, revenue growth, and client satisfaction across complex digital infrastructure environments.
At TAG, Margie leads client success, sales strategy, and revenue operations—ensuring that every customer relationship is built on accountability, responsiveness, and a deep understanding of their infrastructure roadmap.
