According to relevant laws in our country , private firms refer to those profit economic organizations based on hiring labors which are invested or taken hold by natural persons , mainly including the sole ownership , partnership and company 根据我国有关法律的规定,私营企业是指由自然人投资设立或由自然人控股,以雇佣劳动为基础的营利性经济组织,主要包括独资、合伙和公司制企业三种类型。