China-Places.com a répertorié environ 14 entreprises dans Tongjiang. Certains des mieux notés entreprises dans Tongjiang sont- Heilongjiang Qindeli Farm Commerce et industrie Business Ziliao, Tongjiang Materials Trade General Company, Tongjiang Industry Economic And Trade Company, Tongjiang Community Jinpai Homemaking Property Service Limited Company, Tongjiang Yinmin Real Estate Broker Limited Company, Tongjiang CITIC Real Estate Appraisal Limited Company, Heilongjiang Les centres commerciaux de l'Oriental Plaza Commercial Building Company Limited, Heilongjiang River Tobacco Company Département de marketing de Tongjiang, Heilongjiang Qindeli Farm Commerce et industrie Business Ziliao & Heilongjiang River Tobacco Company Service marketing de Tongjiang.