Boards and aggregators
Horizontal sites like Craigslist covered every category at once, and every participant could be both seller and buyer. Revenue came from ads, paid listings and listing promotion.
A marketplace is a site where independent sellers trade. The site itself sells nothing. It brings sellers and buyers together in one catalog, and that is what it earns on.
In this guide
01Six steps to launch a marketplace 02From scratch, rent, or a ready-made platform 03What it costs 04Choosing a platform 0512 monetization models 06Questions and answersFrom idea to scale. Order matters: each step builds on the one before, and a skipped step usually comes back later and costs more.
Find a niche where supply and demand struggle to find each other, and check that both sides are ready to come to your site. A narrow niche works better than a wide one at the start.
Decide how the site will earn: commission, paid listings, subscription, ads. You can change the model as you go, but you need a starting hypothesis from day one.
Launch the first version and fill the catalog: an empty marketplace convinces neither sellers nor buyers. This is where the build-or-buy question gets decided.
Bring both sides of the market. SEO and landing pages work, so do ads, and the first sellers usually have to be invited one by one.
Watch real deals and whether users come back, rather than sign-ups. Until the value is proven, don't spend on scale.
When the numbers confirm the model, scale what already works, or raise investment on a proven model.
You can have the first version built from scratch, rent it from a SaaS builder, or install a ready-made platform on your own server. A ready-made platform is a marketplace core proven on real projects. Renting starts fast, but it is paid monthly and the code stays with the vendor.
Every Tamaranga platform ships with your AI team on board (IDA). They prepare the edits, the copy and the add-ons, and leave you only the yes or no.
IDA gives your AI team your setup from day one: what you sell, your add-ons, how you make money, your live data. No ramp-up, no re-explaining. The advice fits your project, not a generic template.
Need an add-on, a theme change, a new landing page, or fresh category copy? Your AI team prepares it and shows you before anything goes live.
Schedule a Monday-morning briefing right from your own terminal — IDA reads the counts, velocities and trends in your live data and flags what's worth a look. Runs on your own AI account. Nothing routed through us.
IDA keeps a history of every code and file change they make. You can review any change, undo it, or roll back to a previous version at any time.
Custom development is quoted individually and measured in months. With a ready-made platform the price is known before you start: pick your vertical and see the price for your project.
Four verticals on one proven core, a fifth on the way. Choose by your project's niche, not by price: the core is the same, only the industry it is built around changes.
A marketplace rarely lives on one model: usually there are several, and the mix changes as it grows. On Tamaranga platforms the models can be combined and reconfigured on a running project.
A fee to publish a listing or a product, often by category: in real estate listings are paid, for kids' goods they are free. Works well with limits, where everything beyond the free quota is paid. Etsy earns this way, for example.
Recurring fees for listing, extended limits or access to site features. Works when the user needs the site all the time. Several plans let you charge companies of different sizes different prices.
Paid promotion inside the site: bumping and pinning in the list, visual badges, premium blocks on the home page. Works even on small traffic if there are enough listings, and serves as an extra model on every type of marketplace.
Basic features are free, advanced ones are paid. The model makes it easy to attract users and lets them pay after they have seen the value. Premium features have to be genuinely useful, not artificial limits.
A percentage of every deal on the site. Almost every marketplace aims for this model. It works when the buyer comes back often and is not tied to one seller, and the site takes on the hard parts around the deal: guarantees, delivery, returns.
The seller or service provider pays for contact with each potential customer. Works where supply exceeds demand and providers compete for every customer. Popular on real estate marketplaces and in B2B.
The buyer or the contractor pays for the other side's contact details. Used where the deal is hard to control: services, real estate, businesses for sale. Works best when demand exceeds supply and contacts get bought several times.
A fixed fee for a target action through the platform, such as booking a table or a salon appointment. The forerunner of the transaction model, popular with aggregators of offline services where the order value cannot be known in advance.
Extra services around the deal: insurance, delivery, a car or apartment inspection, legal support. Works best on marketplaces that close the deal themselves.
Banners and ad networks are most often the main model for classifieds and aggregators, and extra income for everyone else. Easy to launch, works best on high traffic or a narrow specialty, and is the hardest to control and scale.
Income from partner links: users click through and buy on other sites, and the seller pays the site for the buyer it brought. Suits niche aggregators that know how to attract targeted traffic. On Tamaranga platforms the referral program is available as an add-on.
The site buys the goods and sells them itself, controlling the price and the margin. Selling your own goods and services on your own marketplace is a great extra model, and even Amazon does it.
New types of marketplace do not replace the old ones, they layer on top. Understanding this evolution helps you choose the model for your project.
Horizontal sites like Craigslist covered every category at once, and every participant could be both seller and buyer. Revenue came from ads, paid listings and listing promotion.
Sites began to pick one niche and go deeper into it. The audience became clearer to advertisers, so vertical projects sell ads better than everything-for-everyone projects.
Payment moved onto the site itself, and that is the key difference between a marketplace and a classifieds board. The business model is tied to a percentage of transactions and seller subscriptions.
Uber-style sites take on dispute resolution, after-sales service and insurance. The consumer relies on the site's service standard instead of choosing a specific provider.
The site takes on all the worry about delivery and quality and looks like an ordinary company to the consumer. There is no standard business model here: some sites buy the goods outright and sell them themselves.
B2B service marketplaces with a SaaS component bring the players of one industry together around a complex service: a wedding, building a house. Remember that even Amazon started as an online bookstore.
A platform where the core of an online marketplace is already built and proven on real projects: catalog, seller accounts, payments, moderation. You install it, configure it for your niche and fill it. That usually takes weeks, not months of development.
To test an idea and run standard models, a ready-made platform is the better deal. It is faster and cheaper, and every integration updates together with the platform. Building from scratch makes sense when the business model fundamentally does not fit what ready-made platforms and their add-ons can do.
It depends on the path and the platform. Custom development is quoted individually and usually measured in months. With a ready-made Tamaranga platform the price is known before you start: the license is paid once, there is no cut of your sales, and the amount depends on the vertical and the tier. For example, the Marketplace platform in the Silver tier is $4,200, Classifieds is cheaper, and Black is built to order. Pick your vertical in the Cost section above, see the platform pages or the full pricing.
A standard launch on a Tamaranga platform takes about 2–3 weeks, including setup. Projects with a large amount of custom work take 6–10 weeks. Building from scratch is usually measured in months.
No. The platform ships ready to launch, and your AI team (IDA) works inside the admin on the everyday tasks you would otherwise hire out: design tweaks, category copy, SEO, configuration, small custom fields. For larger custom work our support team helps with the architecture so changes stay compatible with platform updates. Decisions that need judgment stay with you. Your AI team runs on an engine you connect: Claude Code, Codex, Grok, Kimi, or OpenCode with any OpenRouter model.
Yes. Monetization models on Tamaranga platforms combine and reconfigure while the project is running. You can start with paid listings and ads, then add subscriptions, promotion or a transaction commission later.
Yes. Before buying you get a free 14-day trial on our servers. You get access to the admin and the storefront and can test the platform on your own scenarios.
Pick a vertical, see the platform in action, and test your idea on a free 14-day trial.