Custom client and partner portal development

Client portal software from ANTLR Tech is a secure login where your customers, suppliers or subcontractors can see their own status, documents and invoices — instead of emailing someone on your team to go and look. It is built for your operation rather than configured from a product, so the screens follow the way your team already works. Typically 15–300 staff, where someone spends half a day a week answering "where is it?" and "can you resend that?" by hand.

It depends on scope, integrations and how many locations you run — so we don't publish a number that would be wrong for most people. What we do commit to is the shape: a short paid discovery, then a fixed price for a defined first release that you approve before any production code is written. No open-ended billing, and no surprise at the end.

A first working release lands in 6–12 weeks from kickoff. We run two-week cycles with a demo at the end of each, so your team is using part of the system while the rest is still being built — rather than waiting for a single reveal at the end.

Companies whose customers and suppliers ask the same questions daily. Typically 15–300 staff, where someone spends half a day a week answering "where is it?" and "can you resend that?" by hand. If an off-the-shelf product already fits without workarounds, we will say so — custom software only pays when the process is specific enough that rented tools fight you.

No, and the ones who prefer to phone should keep phoning. The portal is there to absorb the routine questions — where is it, can you resend that, is this approved — which is where the hours actually go. The exceptions still reach a person.

Each organisation sees only its own records, and that boundary is enforced on the server rather than by hiding links in the interface. Access is role-based, every view is logged, and you can review who reached what at any point.

No. The portal usually sits on top of the systems you already run, reading and writing through integrations rather than keeping a second copy of the data. That keeps one source of truth and means the portal can go live without a migration first.

Yes. Partner roles get their own view of the same system — their jobs, their documents, their invoices — kept separate from what customers see. Suppliers and subcontractors log in as themselves rather than sharing an account, so the audit trail stays meaningful.

You do. The repository, the hosting accounts and the data are yours from day one, documented at handover so another team could pick the work up. There is no seat licence and no fee that exists only to keep you with us.

No. Most clients arrive with a problem rather than a spec. Deciding what to build first — and what to leave alone — is the work of the discovery stage, and you keep the process map that comes out of it either way.