Best Block Chain Development Company x 2

Hi, I am looking for a blockchain company that is reputable and has a good portfolio. You must ensure that you have successfully built up a great number of blockchain projects if not don't bother to talk to me. I am trying to save your time. 1. I am trying to build an application that is multi-vendor using blockchain - private network running on hyper ledger fabric. - Native Mobile Application (In wallet Coin purchase) 2. Think of it as how Amazon is doing it. Similar. Quote: I am NOT SPAMMING before you bid. 1. You must have a good UI/UX team - You have to let me know what is the prototyping stage. Like using XD to do all the flow on the design portion before proceeding on to the mobile development. Let me know how much it will cost. 1. 1. PSD/AI – UX/UI Designing of all website front end screens and backend application screens 2. PHP Backend Development Designing all of the backend modules which the frontend can be operated using a “Content Management System” 3. E-Shopping Module System We will need to do an authorization and pay where customers are able to make payment. Payment shall be sent over to the Company’s account 4. Multi-Store Vendors System Creation of a multi-vendor platform where vendors are able to create and upload products and description of products as well as price for customers to see 5. Order Management System All of the orders which are created upon purchase shall be push over to backend of the vendors order system where they are able to speak to the customers via a note and status of the product can be changed. 6. Premium, Confidence icon, Background check, and Background Verification dynamic System We will need to pre-create a system where every store which signs up with us are able to easily allow us to verify their background. Add badges for their confidence icons, add premium stores 7. Advertisement banners Pre created an advertisement backend which allows us to upload advertisement banners quicker for store owners who wishes to feature their brand 8. Review System We will be creating a reviewing base system where only successful purchase and only upon customer acknowledging the receiving of the order, will the reviewing system be active through smart contract deployment. 9. Milestone management It should have a milestone management system which works exactly the same as freelancer. Only upon receiving of last payment will the reviewing system kicks in. 10. BlockChain Private Network We will be creating a private block chain network which may run on hyper ledger multi fabric to control the security and timestamp of every transaction that are being made as well as all of the verifications being done