WorkVenture gives you an inside look at what it's like to work at Grant Collection And Outsourcing Service Co., Ltd., office & team photos, reviews and more. This is the Grant Collection And Outsourcing Service Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at Grant Collection And Outsourcing Service Co., Ltd..Apply to I StepApply to Bangkok MeterialApply to OtisApply to Aleph