This B2B SaaS company org chart briefly summarizes different workers' roles and responsibilities. The best organizational structure for your SaaS company is determined by the size of the company (defined in terms of full-time employees, not revenue) and the stage of the startup, growth, or expansion phase you are in. As shown in this B2B SaaS company org chart, SaaS company structures change significantly as the company rises from a small team of 5-10 people to an organization with 25-50 and more than 100 full-time employees. Because they lack the necessary financing, SaaS startup founders will be involved in all aspects of the company at this early stage.