Objectives:
The aim is to determine the extent to which food companies use marketing modelling in the context of sustainability.

Material and methods:
The study utilized CATI telephone interviews and CAWI online interviews. An electronic survey questionnaire, developed in a web application, was used. The questionnaire contained a set of structured questions regarding the subject of the study and personal characteristics. A Likert scale proved helpful in obtaining responses.

Results:
The formula proposed by Hellwig and Namysłak was used for statistical testing. Development indices were proposed to assess the degree of modeling: Q1, Q2, Q3, and Q12. Analysis of the research results shows that marketing modeling of sustainable development takes on diverse values. Based on the values ​​of individual indices, a global Y index was calculated. For the companies included in the study, the Yglo index was 0.46, which allows us to conclude that it is far from the ideal of 1.0. The results of the research and analyses indicate that the research hypotheses were confirmed.

Conclusions:
The lack of satisfactory results in the pursuit of effective modeling of marketing activities of food companies towards sustainable development stems from the costs associated with transforming conventional marketing into sustainable marketing. For most food companies, the primary goal is to generate sales profits and increase market share. Therefore, reconciling the triad of environmental, social, and financial goals becomes a difficult, if not impossible, task for most companies. The topic presented in this article does not fully address the existing problem nor does it fill the theoretical and cognitive gap. Therefore, there is a need to further deepen knowledge on this important and timely topic, both theoretically and scientifically.