Competitive delivery order federal contracts represent a substantial segment of federal procurement, with total obligations exceeding $249 billion across more than 2.6 million awards. The average award size of approximately $95,000 indicates a high volume of moderately sized transactions rather than a market dominated by a few large contracts. Historical trends show that competitive delivery orders have grown significantly since the late 1970s, with notable peaks in the early 1980s, suggesting evolving reliance on this contracting mechanism over time. Agency concentration is evident, with the Federal Acquisition Service and the Department of Veterans Affairs accounting for a large share of obligations and awards, reflecting their prominent roles in managing and distributing competitive delivery orders. Vendor concentration is less pronounced but still notable, with a handful of large contractors such as Science Applications International Corporation and AmerisourceBergen Drug Corporation receiving multi-billion-dollar obligations, indicating preferred vendor relationships within this competitive framework. For analysts, this data underscores the importance of monitoring both agency procurement strategies and vendor performance within competitive delivery orders to understand federal spending patterns. Contractors can interpret these findings as indicative of a competitive yet accessible market segment characterized by numerous awards of moderate size. Procurement researchers should consider the temporal growth and agency-specific concentration when evaluating the efficiency and competitiveness of delivery order contracting. Overall, competitive delivery orders constitute a critical, sustained channel for federal acquisitions with distinct patterns of scale and concentration that inform market dynamics and strategic decision-making.