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Jefferis Software Solutions
New — meet Relay, our flagship product ↓

Custom Software

Off-the-shelf tools only get you so far.

When your workflow has outgrown spreadsheets and duct-taped SaaS tools, bespoke software is the answer. We build internal tools, dashboards, and automations that slot into how you actually work.

Flagship product

Meet Relay. The back office that runs itself.

Most of what we build is bespoke, for one business at a time. Relay is the product it all feeds into — it reads every email and WhatsApp as it lands, works out the job, drafts the paperwork, chases the money, and ticks the work off when the reply comes back.

relay.In private preview
Relay — Inbox
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Sarah Mitchell ↗

email · [email protected] · 07700 900982

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Quote attached — £95 all in, includes the flue check. Any Tuesday works for me. Finn
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Rebuilt from the app's actual components — the real interface, acting out a real morning

Chases the money

Watches every invoice and drafts the nudge in your voice at 5, 7 and 30 days overdue. You just press send.

Texts become jobs

A WhatsApp from an unknown number becomes a client, a job and a diary slot — booked back in minutes.

Closes its own loop

Reply from your normal email and Relay matches it to the open step and ticks it off. No app to feed.

What we build

Tools that solve real problems.

We don't build software for the sake of it. Every project starts with a real problem and ends with a tool you'll actually use.

Dashboards & Reporting

Turn your raw data into something you can actually act on. Custom dashboards that surface the numbers that matter.

CRM & API Integrations

Connect your tools. Sync data between your CRM, website, and third-party platforms automatically.

Workflow Automation

Eliminate repetitive manual tasks. We map your process and build software that handles it for you.

Document Generation

Branded PDF reports, quotes, contracts — generated automatically from your data and sent where they need to go.

Booking & Client Portals

Custom booking systems, client-facing portals, and self-service tools built around how you actually work.

AI & Smart Tooling

Practical AI integrations that save real hours. Not hype — tools that solve specific problems in your workflow.

Built with

ReactNext.js.NETNode.jsPostgreSQLTypeScriptStripeREST APIsTailwind CSSVercel

How it works

Simple process. No surprises.

Step 01

Discovery call

We talk through your problem, your workflow, and what good looks like. No jargon.

Step 02

Scoped proposal

You get a fixed-price proposal with a clear scope. No surprises mid-build.

Step 03

Build & review

We build in stages and check in regularly. You see progress early and often.

Step 04

Handover & support

Full handover with documentation. Ongoing support available if you need it.

Got a process that needs fixing?

Let's talk about it.

Tell us what's broken. We'll tell you honestly whether software can help, what it would take to build it, and give you a fixed-price proposal. No obligation.