This paper proposes a modified procurement portfolio model for managing sustainability risk and develops a set of propositions for procurement strategies to enhance sustainable public procurement (SPP). The model follows the design principles of (Krajlic’s, 1983) portfolio model and introduces segmentation thinking from PPMs into the sustainable public procurement practice. The approach supports organizations in identifying procurement categories that represent the highest sustainability risk exposure, and where interventions will yield the highest relative sustainability impact. It can also be used by governments, or sub-national entities, to align with national sustainable development priorities, and develop more robust SPP action plans in line with SDG 12.7 requirements. The model is presented in a two-step approach, firstly developing a segmentation model reflecting category-specific sustainability risk profiles, and secondly development of segment-based procurement strategies and formulation of guidance for management decisions. The approach informs organizational sustainable procurement strategies and develops a framework for aligning sustainability integration across the procurement portfolio with corporate sustainability targets and strategies. The model aims at accelerating sustainable public procurement implementation and better position public procurement policy makers and practitioners to strategically guide organizational and national efforts towards SDG 12.7