Step 1: Register as an Amazon seller. This will give you access to Amazon's marketplace, which is essential for third-party logistics companies. Step 2: Create a listing for your third-party logistics services on Amazon. Be sure to include all of the relevant information that potential customers will need to know, such as your pricing and delivery options. Step 3: Start promoting your third-party logistics services on Amazon. You can do this by creating ads or using Amazon's Influencer Program. Step 4: Once you start getting customers, it's important to deliver on your promises. Make sure that you're providing the best possible service so that you can retain customers and grow your business.