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Digital product studio

Ideas into products

We design and build modern apps, platforms and AI-powered software for companies, creators and everyday users.

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companyos.uk

Active build

CT600 Direct

Journey

Discover Design Build Improve

Product telemetry — last 6 releases

What we build

Apps

Polished web and mobile applications designed around real user needs.

Software development →

Platforms

Secure portals, dashboards and digital services built for complex workflows.

Software development →

AI products

Practical AI assistants, intelligent features and automated experiences built into useful products.

AI and automation →

Internal systems

Custom tools that replace repetitive work, disconnected software and difficult manual processes.

AI and automation →

Consumer software

Focused digital products designed to solve everyday problems simply and beautifully.

UI and UX design →

Integrations

Connected systems, APIs and workflows that help products work together reliably.

Software development →

Featured product

In development

CT600 Direct

A guided platform for preparing and managing UK company accounts and Corporation Tax filings.

Guided filing journey
Company dashboard
Filing history
Document records
Deadline tracking
Secure submission workflow

Explore CT600 Direct

CT600 Direct

Dashboard Filing journey Documents History Deadlines

Northgate Studio Ltd

Period ending 31 March 2026

Draft

Corporation Tax

£18,420

Due

1 Jan 2027

Steps

6 / 9

Filing journey

Company details confirmed

Accounts imported

Review and submit securely

From idea to working product

Discover

We understand the problem, audience, goals and constraints.

Design

We shape the product experience, interface and visual system.

Build

We develop, test and prepare the software for real use.

Improve

We refine the product using feedback, data and changing needs.

Built across the full product journey

See all services →

Product strategy UX and interface design Design systems Web development Mobile-friendly applications Backend systems APIs and integrations AI features Automation Testing Performance Accessibility Launch support Ongoing improvement

Have an idea worth building?

Tell us what you want to create, improve or simplify.

Start a project hello@companyos.uk