In today's world, despite the rapid growth of startups and new businesses, the competition in the market has become very fierce. To survive and grow in this market, startups must seek to attract new customers and retain existing customers with innovative and creative approaches in entrepreneurial marketing. In this regard, entrepreneurial marketing is very important for startups as one of the important approaches in marketing. Therefore, the aim of the research is to develop an entrepreneurial marketing model in start-up companies. In terms of practical purpose and in terms of exploratory nature, it was analyzed with a mixed (qualitative-quantitative) approach. In order to identify the components of the model, qualitative method and in-depth interviews were used. Qualitative section, 15 experts, including top academic professors of marketing management and experts in this field, who were selected in a targeted way. And the data theory method of the Strauss-Corbin Systematic Foundation and with the analysis of the qualitative part, the category analysis method was used with MaxQuda software. In order to fit the designed model, structural equation modeling approach was used by PLS software. The quantitative statistical population included 384 people from all managers, experts and employees in the marketing and sales industry, who were selected in a non-probable way. The data collection tool was a questionnaire based on qualitative findings, whose validity and reliability were confirmed. The qualitative part showed 10 main categories including: customer orientation, policy making, training, entrepreneurial marketing, organization strategy, mental image, advertising, management factors, competitive advantage and entrepreneurial limitations and 20 sub categories were identified. Quantitative part also revealed that there is a significant relationship between entrepreneurial marketing and factors, and the designed model has an acceptable fit. The entrepreneurial marketing model helps startups to market in the best possible way and achieve success by using innovative and creative approaches.