Prosum is a technology services company that emphasizes a people-first approach, providing managed services, staffing solutions, and Microsoft technology expertise. The company focuses on building strong relationships, tailoring solutions to clients' unique needs, and delivering significant improvements in service and satisfaction, as exemplified by successful partnerships with organizations like the California Endowment and Riot Games. Prosum's consultative and flexible approach allows for better integration of technology into clients' operations, driving efficiency and cost savings.