Connect your UK company
Securely connect your Companies House profile and import directors, shareholders, PSCs, filings, and existing deadlines in minutes.
UK startup compliance platform · Companies House automation
Spreadsheets and sticky notes won’t keep your UK company compliant. Never miss a deadline or get fined again.
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Trusted by early-stage UK founders, directors, and investors.
Most UK founders juggle Companies House filings, statutory registers, and accounts deadlines in spreadsheets, email threads, and shared folders. CompanyAIO centralises your UK company compliance into one operating system: filings, deadlines, PSC updates, director changes, cap table records, and documents – all kept in sync with Companies House.
Securely connect your Companies House profile and import directors, shareholders, PSCs, filings, and existing deadlines in minutes.
CompanyAIO turns Companies House data into live tasks: accounts filing, confirmation statements, PSC changes, and director appointments.
Your statutory registers, share records, and compliance documents stay organised, exportable, and ready for due diligence or funding rounds.
Automatic Companies House sync for your UK limited company
Digital statutory registers (members, directors, PSC, charges)
Cap table & ownership records aligned with Companies House
Secure compliance document vault with expiring signed URLs
Director approvals & internal workflows for key filings
Accounts filing & confirmation statement deadline tracking
Role-based access for co-founders, directors & advisors
Start on the free plan while you set up your UK startup compliance. Upgrade when you’re ready to automate filings, registers, and internal approvals.
For early-stage UK founders setting up their first limited company.
£0 / mo
For startups automating Companies House filings, approvals, and registers.
£29 / mo
All plans include secure storage and basic UK Companies House compliance tracking.
Join the waitlist for the UK’s compliance operating system for startups. Get product updates, launch news, and early access.
A UK startup compliance OS (operating system) is a central hub that keeps your limited company compliant with Companies House and other statutory requirements. Unlike accounting tools, which focus on invoices and bookkeeping, a compliance OS manages the legal backbone of your startup – directors, shareholders, PSC records, statutory registers, and key filing deadlines.
CompanyAIO is built specifically for UK limited companies. It connects to Companies House, automatically creates compliance tasks, tracks due dates, and keeps your statutory records and documents in one place for founders, directors, and advisors.
Companies House is a public registry, not a workflow or reminder system. It does not warn you early about deadlines, manageconfirmation statements, track internal approvals, or keep your statutory registers investor-ready. CompanyAIO turns static Companies House data into actionable tasks and reminders.
With CompanyAIO, founders see upcoming accounts filing deadlines, confirmation statements, and PSC updates in one calendar-like view. You can log documents, approvals, and changes so that when investors or lawyers ask for records, they are ready in a few clicks.
Missing Companies House deadlines can lead to late filing penalties, increased risk of strike-off, and friction during fundraising or due diligence. Many founders only realise there is a problem when an investor points out missing filings or inconsistent registers.
CompanyAIO helps reduce that risk by centralising your UK compliance obligations, reminding you of key dates, and keeping your legal records and documentation organised and exportable. This makes it easier to raise capital, pass due diligence, and prove good governance.
CompanyAIO is for UK startup founders, operators, and directors who want to spend less time worrying about Companies House compliance and more time building. It’s especially useful if you're:
Does CompanyAIO replace my accountant? No. CompanyAIO complements your accountant by managing Companies House filings, deadlines, and statutory records while your accountant focuses on accounts and tax.
Is my data secure? Yes. Documents are stored with expiring signed URLs and access controls for different team members and advisors.
Do I need to understand UK company law? No. CompanyAIO is designed so founders don’t have to understand every rule – the system helps surface what matters and when.
Can I invite my accountant or lawyer? Yes. You can invite collaborators and give them the right level of access to your company records and compliance dashboard.