Please note that the UK Tier 1 Entrepsuenr Visa route has been closed in April 2019. The requirements and process for the current UK Tier 1 Investor Visa are different and mostly based on financial requirements. Showing that you already started a business in your Home Country will definitely help with your application considering the other factors. Always seek professional legal advice when dealing with your application to avoid any future refusals or complex situations.
If you were planning to apply for a Tier 1 Entrepreneur visa (initial application) then, unfortunately, this immigration category was closed last year. However, you might be eligible for innovator, start-up, global talent or sole representative of overseas business visas.