Services · Website development · Marketplace websites
Codeeo offers marketplace website development USA founders and operators use to launch a two-sided platform and roll it out across several states. We build the public web platform: category and city landing pages, seller and provider profiles, onboarding and verification flows, inquiry and request forms, trust and reporting tools, and a CMS your team runs. Each part is designed with the federal rules that apply to any American marketplace in mind, and with room to add state-specific requirements as you expand into new markets.
We work with US clients remotely. Discovery, design reviews, sprint demos and acceptance testing all run over video call, with a staging site open throughout. Code, content, data and accounts are registered to your company from the start. Your staff are trained to run approvals, content and moderation themselves.
200+ companies across the US and the UAEFrom a first store to a listed developer
What the platform includes
A national marketplace rarely launches nationally. It wins one metro area, proves the model, then repeats the playbook in the next city and the next state. The website has to support that pattern without a rebuild each time. That means a page structure that can add cities and categories from the CMS, templates that only publish when supply exists, and compliance features that can be switched on per state. It also means meeting the federal obligations that apply the moment third parties list on your site, from seller disclosures under the INFORM Consumers Act to the FTC's rules on reviews. The capabilities below focus on discovery, trust, onboarding and lead capture. Payments, payouts and tax collection can be built on the same platform as a separate phase. We order them by what your first market needs most.
A page model where staff add a metro area or category from the CMS and the site generates landing pages, internal links, breadcrumbs and structured data. Pages stay unindexed until a minimum number of live listings exists, so expansion never creates thin content at scale.
New markets go live without a development sprint.
For product marketplaces, high-volume third-party sellers must be verified, and some must show their name and contact details on listing pages. We build the data fields, the listing page disclosure and the clear way for buyers to report suspicious activity that the Act requires.
Federal seller transparency built into templates.
A recruitment section and a staged application that collects business details, service areas, documents and state license numbers where a trade requires them. Staff review each application against a checklist in the admin area before a profile goes live.
Consistent supply quality in every state.
The FTC rule on consumer reviews and testimonials bans fake reviews and suppressing negative ones. Reviews are collected only from completed transactions, moderation follows published criteria, and incentives are disclosed where any are offered.
Ratings that hold up under scrutiny.
User listings bring photos and descriptions you did not create. We build a notice and takedown process with a contact route for your designated DMCA agent, a counter-notice path and records of each action, so infringing content is handled consistently.
A documented process for third-party content.
California, Texas, Virginia, Colorado and a growing list of other states have their own consumer privacy laws. A single request center, Global Privacy Control support, consent logs and a privacy notice structured by state cover the common rights without separate builds.
One privacy system that scales with your footprint.
Spanish is widely spoken across the country, and in some metros it is the language that decides whether a provider signs up. We build es-US pages with their own URLs and hreflang, and research Spanish keywords separately.
A second language that ranks on its own.
Request updates and marketing are separated, with CAN-SPAM unsubscribe handling for email and express consent captured before SMS marketing under the TCPA. Consent records are stored against each contact.
Notifications that do not create legal exposure.
WCAG 2.2 AA patterns for search, filters, forms and maps reduce ADA risk, and server-rendered templates keep Core Web Vitals healthy on pages that may number in the thousands once you cover many cities.
Fast, usable pages at national scale.
Marketplaces for tutoring, camps or youth sports can attract users under 13. Where that is possible, we build age screening, parent-led accounts and data minimization so the site can meet COPPA, whose amended rule tightened consent for sharing children's data with third parties. Where children are not an audience, the site is designed and labeled to say so.
Youth categories handled carefully from the start.
Who this is for
National marketplaces share federal rules but differ a lot in how they grow. These are the four situations we meet most often, and the first release looks different in each. We will also say plainly when a simpler directory or an existing platform would serve you better for now. In every case the test of the first release is the same: can buyers in the launch market find enough good choice to come back?
The first city is where the model is proven, so the site starts narrow but is structured for expansion: city and category templates, state-aware compliance settings and an onboarding flow that can take documents from different states. When you open the second metro, it is a content and supply task, not a rebuild. Analytics are segmented by metro from day one, so you can compare cities on supply, demand and conversion before choosing the next one.
Build for the second city from the first.
Once outside sellers list goods, the INFORM Consumers Act, review rules and copyright complaints all apply. We build seller verification records, disclosure fields on listing pages, reporting tools and takedown workflows, alongside catalog search and category pages that rank for product terms. Sales tax collection is a payments matter, but because marketplace facilitator laws followed the Wayfair decision in most states, we plan seller and order data so a tax engine can be added cleanly later.
Contractors, therapists, tutors and other professionals are licensed state by state, and requirements change at the border. The website stores license numbers by state, records verification dates, and only shows a provider in states where they are approved to work. Profiles can carry multiple state licenses, each with its own expiry date and verification record.
Licensing rules differ by state; your team sets them.
Many US marketplaces begin as a listings directory with good rankings. Moving to profiles, requests and reviews means new page types and data, and a migration that keeps existing URLs and traffic. We map every redirect before launch and monitor Search Console afterwards. Old directory listings can be converted into claimable profiles, which is often the fastest way to recruit supply.
How we work together
Most clients begin with a fixed scope build for the first market, then move to a monthly retainer that handles new cities, categories and features. Platforms with a heavy roadmap often take a dedicated team. When you compare any marketplace web development company USA operators shortlist, look at how they document decisions and who owns the accounts; with us, documentation is part of every release and ownership is yours from day one. Expansion work is usually planned one metro at a time: we agree the supply target, the local content and any state requirements for that market, deliver them, and review the results with you before committing to the next city.
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 commonly build on Next.js or Laravel with a headless CMS, Postgres and a hosted search index, deployed to your own AWS, Azure or Google Cloud account. The choice depends on catalog size, traffic expectations and the developers who will maintain the platform. Infrastructure is defined as code, so a second region or environment can be created quickly when traffic grows.
01Web
02Commerce
03Data and cloud
04Marketing and tracking
The public platform, onboarding, search, trust tools, compliance features and a CMS.
A first release usually covers category and city landing pages, seller or provider profiles, an application and verification flow, buyer requests or inquiries, reviews, reporting and takedown tools, privacy tooling, analytics with consent, CRM routing and an admin area. Payments, payouts and tax collection follow as a separate phase if your model needs them. We set the list in discovery from your launch market and categories. Each item is priced and scheduled in the written scope.
Schedule a free consultation and get a written recommendation, with costs, before you commit to anything.
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