Market Size and market share analysis is critical in assessing early-stage startups’ viability and potential success. This methodology involves evaluating the total addressable market (TAM), the portion of the market a startup could potentially capture, and the market share it aims to achieve within that segment. Understanding the market size is crucial as it provides a foundation for revenue projections and helps gauge the overall opportunity a startup can tap into. Market Share, on the other hand, highlights a startup’s competitive position within its targeted market. Analysing these factors is paramount for investors and entrepreneurs alike as it aids in validating the business concept, identifying growth opportunities, and assessing the venture’s scalability. An accurate estimation of Market Size and Market Share becomes indispensable for making informed strategic decisions, particularly in industries where market dynamics evolve rapidly, such as technology and consumer goods. This methodology allows stakeholders to tailor their business strategies, allocate resources efficiently, and navigate the complexities of a competitive landscape, ensuring that the startup is well-positioned for sustainable growth.