AECOM TECHNICAL SERVICES, INC.

Three detectors fired for AECOM TECHNICAL SERVICES, INC. Benford's Law analysis of leading digits in award amounts showed a statistically significant deviation from expected frequency distribution, with digit 1 appearing less often than predicted and digits 2 and 3 appearing more frequently. Modification growth on a single parent contract vastly exceeded peer norms in the engineering services sector. An Isolation Forest multivariate analysis flagged the entity as a statistical outlier based on its combined profile of contract characteristics, award volume, and modification patterns.

The modification growth detector identified contract N6247019D8022 with a growth ratio of 9,187, compared to a sector average of 26, yielding a z-score of 43.7 standard deviations above peer behavior. Benford's test produced a KS statistic of 0.060 with p-value 0.016 across 669 transactions. The isolation score of 0.846 reflects an entity with $1.98 billion lifetime obligations, 669 awards concentrated with a single agency, 13 NAICS codes, and a 68 percent modification frequency.

These statistical signals warrant scrutiny but do not constitute proof of fraud. Large, established contractors like AECOM often exhibit atypical profiles due to scale and complexity. The single-agency concentration and high modification frequency may reflect legitimate DoD relationships rather than misconduct. Benford deviations can arise from genuine business practices in contract pricing. The extreme modification growth ratio is the most concrete anomaly and merits investigation into whether scope changes were properly documented and competed.