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🇬🇧 Built for the United Kingdom startups

Modern Startup Software to Raise, Manage Equity.

Modern-era cap table management tool for forward-thinking companies to view, track, manage equity in a matter of few clicks.

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Our clients are baked by top investors

Tools built to grow
For forward-thinking startups

S(EIS) AA & Compliance — Apply in minutes with AI copilot and investor-ready docs.
Cap Table Management — Visualise ownership, model dilution, and share access.
Data Room — securely share your documents, updates, and financials with investors.
Funding Rounds — raise capital, and close deals all from a single platform.
Everything Your Fundraising Needs — At your fingerprints
Say goodbye to fragmented tools and long checklists. Undo Capital gives you complete access to every feature inside the Vault with one simple plan.
S(EIS) Advance Assurance
SEIS/EIS Compliance
Funding Rounds
Instant Investment
Founder Agreements
Shareholders Agreement
Cap Table Management
EMI Option Schemes
S(EIS) Advance Assurance
SEIS/EIS Compliance
Funding Rounds
Instant Investment
Founder Agreements
Shareholders Agreement
Cap Table Management
EMI Option Schemes
Option Pool Setup
EMI Valuation
Essential Startup Contracts
Investment Agreements
Data Room
Convertible Loan Notes (CLN)
Advance Subscription Agreements (ASA)
Option Pool Setup
EMI Valuation
Essential Startup Contracts
Investment Agreements
Data Room
Convertible Loan Notes (CLN)
Advance Subscription Agreements (ASA)
Due Diligence Preparation
Secondary Share Sales
Board & Shareholder Management
Investor Relations & Reporting
Liquidity Planning
Articles of Association
Due Diligence Preparation
Secondary Share Sales
Board & Shareholder Management
Investor Relations & Reporting
Liquidity Planning
Articles of Association
Playbook

How to structure and manage your first funding round

Focus on growing your business, and we'll help you secure your advance assurance approval quickly.

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HMRC and Companies House Compliaint.

Our workflows mirror official HMRC processes and Companies House record structures ensuring every submission, share issue, and update is accurate, audit-ready, and regulation-safe. Compliance you can trust, automation you can rely on.

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Founder Feedback — Without the Noise
Authentic stories from teams who use Undo Capital to keep their fundraising and compliance on track.

Valeriia Volkova, Chief Product Officer at Undo Capital

"You've been using excel spreadsheets and legacy software because you had no choice. We have built Undo Capital so now you do."
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Security
Enterprise-level
Security
GDPR compliant
Role-based access control
Secure data handling
GDPR
ICO
GDPR

Resources & Guides

Switching from other software?

Undo Capital handles everything — SEIS/EIS, investor agreements, share issue, and filings — in one simple, automated platform.

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Disclaimer: Our services are designed to assist startups and businesses with company formation, legal agreements, and funding-related documentation. We do not provide investment advice, financial advice, or tax advice, nor are we regulated by the Financial Conduct Authority (FCA). Participating in startups and early-stage enterprises carries inherent risks, including limited liquidity, absence of dividends, potential loss of investment, and dilution. Any decisions regarding investments should be made independently by the investor as part of a well-diversified portfolio.