El presente artículo de investigación examina la influencia de la familia en la rentabilidad de las empresas familiares, a través de la presencia en la propiedad y la participación en la gestión de los miembros de la misma. Para ello, se utilizan los datos de 462 empresas familiares manufactureras españolas no cotizadas en el 2008. Los resultados sugieren que a partir de una mayor concentración de la propiedad y la participación activa de los miembros de la familia en la gestión se favorece la rentabilidad de la empresa.The following research article examines the influence of family in business profitability through their presence in the property and their participation in management. Using the data of 462 low-valued Spanish manufacturing family companies in 2008, results suggest that based on a higher concentration of ownership and active participation of family members in management, is related to improvement in company’s profitability.The following research article examines the influence of family in business profitability through their presence in the property and their participation in management. Using the data of 462 low-valued Spanish manufacturing family companies in 2008, results suggest that based on a higher concentration of ownership and active participation of family members in management, is related to improvement in company’s profitability