We design and build platforms that many businesses run under their own name, with their data kept apart and every update shipped to all of them at once.
Start a conversationWhy it matters
Copying a product for each new customer is faster once. After that, every fix, security update and feature has to be done in every copy. One multi-tenant codebase reverses that: the next customer is close to free to add.
Tell us about your platformEvery record belongs to a tenant, and access is checked where the data lives.
Logo, colours, domain and email per tenant, rendered by the same code.
Fixes and features reach every tenant at the same time.
From one customer to many
How SellYourBoat.io became one codebase that a network of brands runs under their own names.
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SellYourBoat.io began as branded listing software for a single brokerage. A second broker asked for the same thing, then a network of regional brands did. That's the point where a bespoke project has to become a product or become a maintenance burden. We led the move to one multi-tenant platform.
A tenant model.
One codebase.
A master dashboard sets up each tenant with isolated data plus its own logo, colours, domain, publishing connection and email settings. Brand colours are stored per tenant as CSS custom properties, so the same code renders entirely distinct experiences, and tenants never bleed into each other.
Isolation you can test.
A platform admin.
Every brokerage that joins SellYourBoat.io adds its published inventory to a public marketplace automatically, with no separate upload. More tenants means more listings for buyers, which becomes the reason the next brokerage joins. If your tenants' data might one day be combined, the structure has to allow for it from day one.
Cross-tenant value, by design.
A platform that compounds.
The decision that shapes everything
It's the first architecture call on any multi-tenant platform, and the hardest to change later. We make it with you, based on your tenants, not on habit.
Every table carries a tenant ID and every query is scoped to it. Access is enforced in the database itself, not only in the app, so a mistake in one screen can't expose another tenant's data. It's the cheapest to run and the simplest to update.
Every tenant gets its own database. Isolation is strongest, and exporting or deleting one tenant's data is simple. It costs more to run, and every structural change has to roll out across every database.
Most tenants share; the few who need it get their own database, behind the same codebase. It's a common next step once a platform starts winning larger customers with stricter requirements.
Proof, not a pitch
A Wall & Fifth-owned platform: white-label listing software for brokerages, with a public marketplace on top that aggregates every tenant's inventory.
Read the case studyFrom our portfolio
Our own products and client work where one system serves many people, teams or brands.
Explore our work
White-label listing software for brokerages, with a marketplace that every tenant feeds.
An agency website, and a custom CRM built on Meibo, our reusable CRM platform.
A composable creator platform: one block system behind every creator's page.
How we build it
The tenant model, the brand system and the admin are designed before the first screen, because they're the parts that are expensive to change later.
Who your tenants are, what each controls, and what must never cross between them.
The settings each tenant can change, and the design that holds together under all of them.
One production codebase on Next.js, React, TypeScript and PostgreSQL, with isolation tested.
A platform admin to set up, support and grow tenants without a project each time.
Engagement
A defined price for a defined build, agreed before work starts.
See how we priceFrom£30,000
A focused product with the tenant model, branding and isolation designed in, ready for its first customers.
Quoted
Tenant set-up, billing and plans, platform admin, integrations and any cross-tenant features, scoped to your model.
From£8,000/month
Ongoing senior involvement once it's live: new tenant features, performance and the roadmap.
You own your data and the custom deliverables agreed in your contract. Reusable components and third-party software retain their licences. The proposal specifies any retained IP, licensing, hosting and exit terms before work starts.
A little more clarity
What to know before building a white-label platform.
Start a conversationWhite-label SaaS is software one company builds and other businesses run under their own brand: their logo, colours, domain and email. Each of those businesses is a tenant. They share one codebase and one platform, but each sees what looks like its own product, and none can see another's data.
Multi-tenant describes the architecture: one application serving many customers with their data kept separate. White-label describes the presentation: each customer gets the product under its own brand. Most white-label platforms are multi-tenant underneath, but a multi-tenant product doesn't have to be white-label.
When a second customer asks for the same thing. Running separate copies for each client means every fix and feature is done several times, and costs grow with every client. Moving to one multi-tenant codebase makes the next customer close to free to add. That was the turning point for SellYourBoat.io.
Every record belongs to a tenant, and access is enforced in the data layer, not just hidden in the interface. We choose between a shared database with tenant-scoped records and separate databases per tenant based on your isolation, compliance and scale requirements, and test that one tenant can never read another's data.
New product builds start from £30,000. Multi-tenant platforms are quoted individually according to the tenant features, branding depth, billing, integrations and administration required. We agree the fixed price, scope and delivery schedule before work starts.
Yes. SellYourBoat.io is a Wall & Fifth-owned platform: white-label listing software that brokerages run under their own brand and domain, with a public marketplace that aggregates every tenant's published inventory. It carries over 12,000 listings from more than 100 vetted brokers across 18 countries. BNOC's custom CRM also runs on Meibo, our own reusable CRM platform.
Make the next move
Tell us who your tenants are and what each needs to control. We'll scope the tenant model, price it and build a platform that gets cheaper to run with every customer.
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