Phronesis LLC

Phronesis LLC, a small business based in Tucson, Arizona, delivers advanced machine learning and artificial intelligence research and development services to the Department of Defense as a prime contractor on DARPA programs and as a subcontractor supporting Army R&D efforts. The firm is structured as a for-profit limited liability company and competes under total small business set-asides and full-and-open designations.

Phronesis's recent federal footprint is sparse but focused on defense R&D. The vendor holds two prime awards from DARPA totaling approximately $996 thousand in combined potential value: a $249,701 Small Business Innovation Research Phase I purchase order awarded August 14, 2025, for language models applied to veteran suicide prevention (completion by May 13, 2026), and a $995,702 Other Transaction Agreement awarded October 29, 2021, for spectral temporal graph neural network development with deep reinforcement learning hyperparameter optimization (completed December 31, 2023). The firm also subcontracts on Army R&D work, including subject-matter expertise support on a January 9, 2024 sub-award for "TEMPLATED HIERARCHICAL ESTIMATION FOR GENERALIZED UNDERSTANDING OF INFLUENCE STRATEGY AND EXECUTION (THE GUISE)." The combined potential value across all three awards is approximately $1.2 million, with dollars obligated reaching $1.3 million across the portfolio.

Customer concentration is divided evenly between DARPA (two prime awards) and the Department of the Army Materiel Command Research Development and Engineering Command (one prime award). Activity is episodic: one award in 2021, one in 2024, and one in 2025. No parent contract vehicles, IDIQs, or GWACs appear in the source. The firm's work centers on applied and basic research in machine learning, graph neural networks, and AI applications to defense and veteran health challenges.