Koseti - Web Design, Data Analytics and Digital Marketing Agency UK
Custom Laravel Development

Laravel Developer UK — Bespoke Web Applications & SaaS

Bespoke Laravel web applications for UK businesses

Overview

Koseti is a UK Laravel development agency building bespoke web applications, SaaS platforms, and custom internal tools for businesses that have outgrown off-the-shelf software. We work with a fixed scope and a fixed price, and you own everything we build.

Bespoke web applications

We build custom web applications from the ground up in Laravel, scoped to your exact requirements rather than adapted from a template. Whether you need a customer portal, an internal operations tool, or a platform with complex business logic, the architecture is designed around what your business actually does, not what a generic SaaS product can be configured to do.

SaaS platform development

We design and build subscription-based SaaS products on Laravel, covering multi-tenancy, subscription billing via Stripe, role-based access control, and the admin tooling to manage the platform as it grows. Voco, an AI receptionist platform for UK businesses, is a recent example built end to end by Koseti on Laravel, ElevenLabs, and Twilio.

API development and third-party integrations

We build RESTful APIs and connect Laravel applications to the external services your business depends on: payment gateways, CRMs, accounting software, logistics providers, and custom data feeds. We also build internal APIs that allow your existing systems to communicate without manual data entry in between.

Bespoke CRM and internal tools

Many businesses are running operations on spreadsheets and email threads because the commercial CRM products available do not fit their workflow precisely enough. We build bespoke CRM systems and internal business tools in Laravel that match the way your team actually works, with a Filament admin panel that non-technical staff can use without training.

Koseti builds bespoke Laravel web applications for UK businesses. We handle everything from initial scoping through to deployment and ongoing support, working to a fixed price rather than an hourly rate. If you need a custom web application, a SaaS platform, or an internal business tool that off-the-shelf software cannot cover, we can scope it in a free call and give you a written estimate within 48 hours.

A UK Laravel agency you deal with directly

We are a small UK team that takes on a limited number of Laravel projects at a time, so the people who scope your application are the same people who build it. You deal directly with the developers writing the code, which keeps decisions quick and avoids the account-management layers that push up costs at larger agencies. Every project is quoted as a fixed price against a written scope, so you know the figure before any code is written.

Built to measure, owned by you

We recently built Voco, an AI receptionist platform for UK businesses, taking it from an empty repository to a live product on Laravel, ElevenLabs, and Twilio. Whatever we build for you is yours in the same way: the full source code lands in your own private Git repository, with no licence fees and no lock-in.

Web applications, marketing sites, and the reporting in between

Not every business needs a custom application. If what you actually need is a marketing site that loads quickly and ranks well, our web design services cover that without the cost of bespoke development. And because measurement matters, every application we deliver includes data analytics and reporting, whether that means GA4 event tracking, a custom dashboard inside the app, or scheduled Looker Studio reports for your team.

Our Process

How we deliver exceptional results for your project

1

Requirements Gathering

We work closely with you to understand your business needs and document detailed requirements.

2

Technical Planning

Our architects design the system architecture, database schema, and technology stack.

3

Development Sprints

We build your application in iterative sprints, delivering working features regularly.

4

Quality Assurance

Thorough testing makes sure your application is stable and bug-free before launch.

5

Deployment

We set up hosting infrastructure and deploy your application securely.

6

Support & Maintenance

Ongoing support to keep your application running smoothly and up-to-date.

Why Choose Us

The benefits of working with Koseti

Perfect Fit

Software built exactly to your business requirements

Scalability

Applications designed to grow with your business

Ownership

You own the code and have full control

Integration

Connects with your existing tools and systems

Competitive Edge

Custom tools that give you an advantage

Long-term Value

Investment that continues to deliver returns

Frequently Asked Questions

Common questions about our custom laravel development services

Laravel development projects at Koseti are scoped and priced on a fixed-fee basis. A straightforward web application or internal tool typically ranges from £3,500 to £8,000. A SaaS platform with multi-tenancy, billing integration, and an admin dashboard typically ranges from £8,000 to £20,000 depending on the feature set. We provide a written estimate within 48 hours of an initial scoping call at no charge.

A focused internal tool or straightforward customer-facing application typically takes 8 to 12 weeks from sign-off to deployment. A full SaaS product with billing, multi-tenancy, and a polished frontend takes between 14 and 24 weeks depending on scope. We build in two-week sprints and deliver working features at the end of each one, so you are never waiting months to see something.

Yes, completely. You receive the full source code via a private Git repository, and there are no licensing fees or ongoing payments to us for the right to use what we built. If you decide to take development in-house or work with another agency after the project, you are free to do so. We can also provide handover documentation and a recorded walkthrough of the codebase on request.

Laravel is our framework of choice for bespoke UK web application development because it is mature, well-documented, actively maintained, and has a large talent pool of developers who can work with it. It is not the right choice for every project: a simple brochure site belongs on WordPress and a very lightweight API might be better served by something lighter. But for applications with real business logic, complex data relationships, and a requirement to grow over time, Laravel gives us the best foundation to build something that will still be maintainable in five years. If you are weighing the two for a specific project, we have written a guide on when to use Laravel versus WordPress.

Yes. We regularly take over Laravel codebases that a previous developer or agency has left in an incomplete or poorly structured state. Before committing to continued development, we carry out a paid code review that covers security, architecture, test coverage, and technical debt. The review report tells you honestly what you have inherited and what it will realistically cost to bring it to a production-ready standard. There are no surprises after that.

Technologies We Use

Industry-leading tools and platforms we work with

Laravel Laravel
PHP PHP
Filament Filament
Tailwind CSS Tailwind CSS
Bootstrap Bootstrap
React React
Vue.js Vue.js
JavaScript JavaScript
HTML HTML
CSS CSS
MySQL MySQL
PostgreSQL PostgreSQL
Redis Redis
Docker Docker
AWS AWS
GitHub GitHub

Related reading

Guides to help you get more from your custom laravel development

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