Modern Cap Table
Management Software
Modern-era cap table management tool for forward-thinking startups and scaleups to view, track, manage equity in a matter of few clicks.

Cap Table Management
Built For UK founders
A single source of truth for ownership, dilution and fundraising decisions. Track ownership, plan future rounds and maintain investor-ready records without relying on spreadsheets.
Track founders, investors and employees across every share class with a complete ownership history.
Model future rounds, option pools and dilution scenarios before making fundraising decisions.
Generate reports, ownership records and key documents whenever investors or advisors need them.
Understand ownership today
Plan ownership tomorrow
Know exactly who owns what today and understand how future fundraising, employee equity and investment events will shape your cap table.

See shareholders, share classes, issued shares and ownership changes in one real-time cap table.
Track founders, investors, employees and advisors in a single source of truth.
Get a clear eligibility signal almost instantly — no long forms or waiting.
Get a clear eligibility signal almost instantly — no long forms or waiting.
Get a clear eligibility signal almost instantly — no long forms or waiting.
Get a clear eligibility signal almost instantly — no long forms or waiting.
Model funding rounds, employee equity and dilution before making decisions.
Simulate future investment rounds and compare ownership outcomes.
Get a clear eligibility signal almost instantly — no long forms or waiting.
Get a clear eligibility signal almost instantly — no long forms or waiting.
Get a clear eligibility signal almost instantly — no long forms or waiting.
Get a clear eligibility signal almost instantly — no long forms or waiting.

EMI option tracking
From HMRC Advance Assurance to closing your round, Undo handles the paperwork. Draft SEIS and EIS applications with our AI co-pilot, keep your cap table clean as you raise, and run an EMI scheme without a lawyer on retainer.
Option grants
From HMRC Advance Assurance to closing your round, Undo handles the paperwork. Draft SEIS and EIS applications with our AI co-pilot, keep your cap table clean as you raise, and run an EMI scheme without a lawyer on retainer.
Vesting schedules
See your portfolio with the same precision as your fund. When founders manage their cap table on Undo, you get clean, real-time data on every round, grant, and dilution event. Whether you write angel cheques or run a fund, the numbers reconcile.
Exercise management
See your portfolio with the same precision as your fund. When founders manage their cap table on Undo, you get clean, real-time data on every round, grant, and dilution event. Whether you write angel cheques or run a fund, the numbers reconcile.




Always investor-ready
Always accurate
The four things investors, lawyers and HMRC actually scrutinise — built to be defensible from day one.

Your cap table is just
the beginning
Manage ownership, employee equity, fundraising and investor reporting from a single source of truth.
Built for fundraising,
not just record keeping
Most cap tables stop at ownership. Undo helps you close rounds, stay compliant and keep investors informed.






Better, more efficient with granule control.
We leverage multi-LLM to process your company docs and compare application details against HMRC benchmark to ensure you application is sucessfull. This further passes to our internal team to manually verify the information to ensure no errors.
Flexible and transparent
Pricing model
Whether you’re a startup, global enterprise, or somewhere in between, Undo is designed to save you time and money.
The faster growing
startups use Undo
Enterprise-level Security
Built for modern startups. Manage your cap table, run your funding round, and handle SEIS and EIS in one streamlined platform.
All data stored in UK/EU data centres. Full audit trail. Right to deletion honoured.
Data controller registration confirmed. We never share your AA content with third parties.
All data is encrypted at rest with AES-256 and in transit with TLS 1.3, the same encryption standards used by banks and government systems.
Your cap table is just
the beginning
Manage ownership, employee equity, fundraising and investor reporting from a single source of truth.
Your questions answered
What is SEIS/EIS Advance Assurance and why do I need it?
Advance Assurance is a confirmation from HMRC that your company is likely to qualify for SEIS or EIS tax reliefs when it raises investment. It gives investors confidence that their tax benefits will be approved, making fundraising easier and faster.
How long does it take to get SEIS/EIS Advance Assurance from HMRC?
HMRC usually takes 4–6 weeks to review and respond to applications, though the timeline can vary depending on their workload and the complexity of your submission. At Undo Capital, we typically process applications within 2–5 working days.
What documents do I need to apply for SEIS/EIS Advance Assurance?
To apply for SEIS/EIS Advance Assurance, you’ll typically need the following documents:
• A completed HMRC application form
• Your business plan and financial forecasts
• A copy of your company’s memorandum and articles of association
• Details of your trading activitiesInformation about potential investors (if available)
What are the eligibility criteria for SEIS and EIS?
Key criteria include:
• Your company must have a UK permanent establishment
• You must be carrying out a qualifying tradeYou must meet the asset and employee limits (e.g. gross assets under £350k for SEIS, under £15m for EIS)
• You must raise funds within the scheme’s fundraising limits (£250k under SEIS, £12m under EIS, or £20m for knowledge-intensive companies)
• Money raised must be used for growth and development within a set timeframe
Do I need a lead investor to apply for Advance Assurance?
No, it is preferable that companies show interest from at least one potential investor. This doesn’t have to be a signed commitment — a simple letter or email from an investor can often be enough.
Latest articles on startup equity
Get every new hire up to speed with an AI copilot trained on your playbook and best practices to help them win from day one.
Get every new hire up to speed with an AI copilot trained on your playbook and best practices to help them win from day one.
Get every new hire up to speed with an AI copilot trained on your playbook and best practices to help them win from day one.
Get every new hire up to speed with an AI copilot trained on your playbook and best practices to help them win from day one.
Get every new hire up to speed with an AI copilot trained on your playbook and best practices to help them win from day one.
Get every new hire up to speed with an AI copilot trained on your playbook and best practices to help them win from day one.
Get every new hire up to speed with an AI copilot trained on your playbook and best practices to help them win from day one.
Get every new hire up to speed with an AI copilot trained on your playbook and best practices to help them win from day one.
Get every new hire up to speed with an AI copilot trained on your playbook and best practices to help them win from day one.
Get every new hire up to speed with an AI copilot trained on your playbook and best practices to help them win from day one.





