Services · Mobile app development · Online marketplace apps
Codeeo handles marketplace app development in Dammam for retailers, distributors and industrial suppliers who want many vendors selling through one platform. We build the vendor onboarding, the commission rules, the split payouts, the dispute handling and the ratings that make a marketplace trustworthy. The Dammam, Khobar and Dhahran metro mixes household shoppers with factories, contractors and service companies, so the platform has to handle a spare part order from a workshop as easily as a weekend purchase from a family.
A marketplace is a different product from a single shop app. You are not only selling. You are policing quality, holding the rules between two sides and paying other businesses on time, and every one of those duties needs software behind it.
200+ companies servedFrom a first store to an ADX listed developer
What the platform includes
Most marketplace failures in a city like Dammam are not design failures. They come from vendors who were never checked, payouts that arrive late, or a buyer with a wrong valve and no way to complain. The Eastern Province also has a heavier share of business buyers than most Saudi cities, because the Second Industrial City, the oil and gas service sector and the port at King Abdulaziz Port in Dammam all create steady demand for parts, tools and consumables. So the feature set below leans toward verified sellers, quotations and clear money flows. We sequence these in discovery: some belong in the first release, others follow once real vendors are trading and you can see where they struggle. Each one is built into the buyer app, the vendor portal and your admin dashboard together, so the three views never disagree about an order. That shared foundation is what separates multi-vendor marketplace app development in Dammam from adding a seller page to an existing shop: the rules for both sides live in one system and can be changed by your team.
Sellers apply inside the vendor portal, upload their commercial registration, VAT certificate and bank details, and wait for your approval. Where you subscribe to the Ministry of Commerce data service Wathq, the registration can be checked automatically. Your team sees a queue of pending vendors with missing items flagged.
Only verified Eastern Province businesses go live on the platform.
Industrial buyers rarely want a fixed price for a bulk order of fittings or safety equipment. They post a request, several vendors respond with prices and delivery dates, and the buyer accepts one quote, which becomes an order with the agreed terms locked in.
B2B demand from contractors and plants is captured instead of lost to phone calls.
Heavy equipment, electronics and household goods carry very different margins, so a single commission rate rarely works. We build rate tables by category, vendor tier and promotion, with start and end dates, so your finance team changes rules without a developer.
Your margin is calculated the same way on every order.
Buyer payments by mada, Apple Pay or card go to a SAMA licensed payment provider that supports split settlement. Your commission is separated at source and each vendor share is released on the schedule you set, such as after delivery confirmation or a return window.
Vendors are paid on time and you never hold their money by hand.
Each listing can carry data sheets, compliance certificates and compatible part numbers, searchable by buyers. Moderators can require certain documents before a product in a regulated category is published.
Technical buyers find the exact item and fewer orders come back.
When a delivered part does not match the listing, the buyer opens a case with photos, the vendor responds within a set time, and your team decides if they cannot agree. Refunds and partial refunds flow back through the same payout system.
Arguments are settled on the record, not on WhatsApp.
Ratings are only accepted from completed orders and are split into accuracy, packaging and delivery time. Vendors can reply once. Your admin view shows which sellers slip, so you can coach or suspend them before buyers leave.
Good Dammam sellers rise and weak ones are visible early.
Small parcels use courier zones covering Dammam, Khobar, Dhahran and Qatif. Bulky goods such as generators or pallets of tiles are flagged for vendor arranged freight with a booking window, so the checkout never promises a motorbike for a pallet.
Delivery promises match what can physically be moved.
A plant or contractor rarely has one buyer. We let a company account hold several users, with a requester who builds the basket, an approver who signs it off and a finance contact who receives the invoice. Spending limits per user and purchase order numbers on every order keep the platform acceptable to procurement teams in Jubail and Dhahran as well as Dammam.
Corporate buyers can order without breaking their own purchasing rules.
The Eastern Province workforce includes many English speaking engineers and buyers alongside Arabic speaking families and shop owners. Every screen, notification and vendor email exists in both languages, with right to left layouts designed rather than mirrored at the end.
Both sides of the market can use the platform without help.
Who this is for
The platform looks different depending on who is selling and who is buying. As online marketplace app developers in Dammam, we see four starting points more than any other, and each one changes what goes into the first release. Below is how we would approach each, so you can see which is closest to your situation before the first call.
You already sell pumps, fasteners or PPE to plants around the Second Industrial City and you want to add other suppliers to fill gaps in your range. The first version focuses on quotation requests, company buyer accounts with several users, purchase order references and credit terms for approved customers. Consumer features can wait. This is the classic case for B2B marketplace app development in Dammam, where the buyer is a procurement officer and not a shopper.
Start with the buyers you already serve, then invite vendors.
You run shops in Khobar and Dammam and want neighbouring independent stores to sell beside you, so customers get a wider choice in one app. Here the priority is a clean catalogue, fair commission rules, reserve and collect from the nearest branch, and a dispute process that protects your brand when another vendor makes a mistake.
You have an idea for a niche market, perhaps used equipment, marine supplies for the Gulf coast or local food producers, and you need a first version that proves vendors will join and buyers will return. We cut the scope to onboarding, listing, checkout, payouts and ratings, and leave advanced promotions and analytics for the second release. We also help you write the vendor terms that the app enforces, because a founder who has not decided the return window cannot ask developers to build it.
Proof with real vendors beats a long feature list.
Many Dammam traders already broker deals between suppliers and buyers by phone and WhatsApp, then reconcile commissions in a spreadsheet. A marketplace app formalises what you already do: the same vendors, the same buyers, but with orders, commissions and payouts recorded by the system instead of by memory. Your existing relationships move across first, which gives the platform real trades on day one instead of an empty shop window.
How we work together
Most Eastern Province clients start with a fixed scope first version, then keep the platform improving on a monthly retainer once vendors are trading. Larger groups sometimes take a dedicated team. Our team of 80+ works from Dubai, Riyadh and Karachi; for Dammam projects, discovery sessions and design reviews run by video call, with shared boards so your operations and finance people can comment between sessions. A fixed scope suits a first release because the vendor rules, payment flow and categories are agreed in writing. A retainer then covers the steady work every live marketplace needs: new categories, commission changes, vendor portal improvements and fixes found in dispute data. A dedicated team suits a group running several marketplaces or a fast growing platform.
A defined build with a deadline
We agree what the product has to do, write it down with a price and a date, and build exactly that. Changes are priced before they are made, not discovered on the invoice.
A product that keeps evolving
Named engineers who work your hours, join your standups and stay on the codebase. You direct the backlog; we own the quality of what ships.
Something live that needs looking after
A monthly block of hours for improvements, fixes and the small requests that otherwise wait months. Unused hours carry for a quarter.
Technology
We choose the stack around your vendor volume, the payment provider you select and the systems your finance team already uses, so the people who run the marketplace after launch can maintain it.
01Mobile
02Data and cloud
03Marketing and tracking
It depends mainly on the payment flow and the number of vendor types.
A platform with one kind of vendor, fixed commission and standard checkout moves much faster than one with quotations, credit terms, freight bookings and several vendor tiers. In discovery we list every rule the marketplace needs, decide which belong in the first release, and then write the dates into the scope. The slowest part is often outside the code: opening the payment provider account and agreeing split settlement terms, so we start that early.
Schedule a free consultation and get a written recommendation, with costs, before you commit to anything.
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