Experienced. Independent. Results-Driven.

IT Sourcing Experts (ITSE) provides independent advisory services specializing in IT sourcing, procurement, outsourcing, and complex technology contract negotiations.

Founded in 2022, ITSE is led by Greg Callahan, a seasoned IT and management consulting professional with more than 38 years of industry experience, 18 years in management consulting, and involvement in over 60 IT outsourcing deals.

ITSE helps organizations optimize technology investments, develop effective sourcing strategies, negotiate market-competitive agreements, and strengthen supplier performance and accountability.

From initial sourcing strategy through contract execution and ongoing governance, ITSE provides practical expertise and disciplined execution focused on delivering measurable financial and operational value.