Live · Companies House
No account · No stored data · 100% public sources

Know what's happening
to your UK investments.

CompanyBeacon monitors your SEIS and EIS portfolio against Companies House public records and live press coverage — plain-English alerts the moment something goes wrong.

2010
The bit most investors miss
We look all the way back to 2010 — finding unclaimed SEIS/EIS relief on companies that already failed years ago.
Most investors have £2,000–£15,000 unclaimed. HMRC won't tell you. The window closes quietly.
73.5%
max SEIS recovery
4 yrs
to amend a return
15 yrs
of records searched
Find my unclaimed relief →
See a live demo → How it works
City of London Business documents Professional investor
New Alert
Northgate Cleantech Ltd
⚠ Strike-off proposal filed
Records back to 2010 · 15 years of data
Powered entirely by public data
Companies House API
UK Gazette Notices
Live Press Coverage
Public Insolvency Register
SEIS/EIS Filing Data
Historical records back to 2010
2010
Most SEIS & EIS investors don't know this
CompanyBeacon searches all the way back to
2010
Finding unclaimed SEIS/EIS loss relief on companies that already failed years ago
15 yrs
of Companies House records
£2k–£15k
typical unclaimed per portfolio
73.5%
max recovery on failed SEIS
Find my unclaimed relief — it's free →
No account · No data stored · Consult a tax adviser before claiming

You may be sitting on
thousands of pounds
you never claimed.

If you invested in UK startups between 2010 and today, there's a strong chance at least one of those companies has quietly dissolved, been struck off, or entered liquidation — without you ever being told.

HMRC allows you to claim SEIS/EIS loss relief on failed investments — recovering up to 73.5p in every pound lost. But HMRC won't tell you. The company won't tell you. The window closes quietly. Most investors never claim.

Find out what I can reclaim →
Free to check · no account · no data stored · always consult a tax adviser
What investors typically recover
£10,000 SEIS investment · failed company
You thought it was all gone.
Dissolved
50% upfront SEIS relief already claimed +£5,000
Loss relief on net loss (45% rate) +£2,250
Worst case out of pocket
on a £10,000 investment that went to zero
£2,750
£25,000 EIS investment · struck off 2021
No certificate arrived. You forgot about it.
Unclaimed
30% upfront EIS relief already claimed +£7,500
Loss relief on net loss — still claimable +£7,875
Still claimable via amended return
window open until Jan 2026 tax year closes
£7,875
2010
records start here
2010–2015
Early SEIS/EIS era
many now dissolved
2016–2020
Peak angel investing
failures surfacing now
2021–2024
Post-COVID failures
windows still open
Today
Daily monitoring
live alerts
2026
monitored today
How the historical audit works

Upload once. We do the rest.

A list of every company you ever backed — even ones from ten years ago. We cross-reference 15 years of public Companies House records and show you exactly what you're owed.

📋
Upload your list
Any companies you invested in — name or number, any year
🏛
We search back to 2010
Live Companies House lookup — dissolved, struck off, liquidated
🧮
Relief calculated
SEIS and EIS loss relief amounts shown per company
⏱
Windows flagged
Open, closing soon, or closed — so you know what to act on first
💰
Take to your adviser
Export your full recovery report and hand it to a tax professional
The average investor with 10+ companies has at least one failed company they've never checked.

That's potentially £2,000–£15,000 sitting unclaimed in old HMRC records. CompanyBeacon finds it in seconds from public data. You don't need to remember which companies — just upload what you have.

£2k–£15k
typical unclaimed relief per portfolio
🔒
Privacy first — by design
CompanyBeacon stores absolutely nothing about you or your portfolio

Your company list exists only in your browser session. We make API calls to Companies House and search the web on your behalf — but we never persist, sell, or share your portfolio data. There is no account, no login, and no database. When you close the tab, everything is gone. We are a window into public information, not a holder of your private data.

How it works

From company list to clear picture
in under 10 seconds

Four steps. All public data. No signup required.

01
📋
You upload your list

A CSV of company names or numbers — date invested, amount, SEIS/EIS certificate status. It never leaves your browser.

02
🏛
We query Companies House

Live calls to the free public Companies House API. Company status, filing history, insolvency records, Gazette notices — all real-time.

03
📰
We scan the press

Real-time web search for press releases, funding announcements, and news about each company. Sentiment scored automatically.

04
🔔
Plain-English alerts

Risk scored green, amber, or red. Instant flags for strike-off proposals, overdue accounts, liquidation, and dissolution notices.

What we monitor

Every public signal that matters

All sourced from the same registers any member of the public can access — we automate the watching and translate the legal jargon.

Financial documents and analysis
7
Alert types monitored
Strike-off proposals
GAZ1 Gazette notices filed before a company is removed from the register. You get the alert — not a letter from a liquidator months later.
Overdue accounts
Confirmation statements or annual accounts not filed by the legal deadline. A reliable early warning of trouble.
Insolvency & administration
Administrator appointed, creditors' voluntary liquidation, compulsory winding-up orders — all publicly filed at Companies House.
Final Gazette: dissolution
Confirmation that a company has officially ceased to exist. We flag this and remind investors of potential SEIS/EIS loss relief.
Dormant company flags
No filing activity for 12+ months. A warning sign that often precedes formal strike-off action.
Press & funding coverage
Live web search for press releases, funding rounds, and media coverage — with investor names, amounts, and sentiment scoring.
SEIS/EIS loss relief triggers
When inactive companies held qualifying SEIS/EIS shares, we flag the tax relief window so investors don't miss it.
The question most investors never ask

Did any of your past investments
fail without you knowing?

Companies House holds public records going back to 2010. If you invested in a company between 2010 and now, we can check whether it was dissolved, struck off, or liquidated — and calculate exactly what SEIS or EIS loss relief you were entitled to claim.

Many investors have thousands of pounds sitting unclaimed from companies that quietly disappeared years ago. You have up to four years to amend a self-assessment return — some of those windows may still be open.

Upload a list of every company you ever invested in — even ones from years ago
We check each one against Companies House records back to 2010
For each failed company, we calculate the loss relief you were entitled to
We flag which relief windows are still open and which have closed
Your portfolio · historical scan
✓
2014
Aphelion Energy — £15,000 SEIS
Struck off Nov 2021 · 50% upfront claimed
Loss relief unclaimed +£3,375
⚠
2017
Helix Materials — £30,000 EIS
Dissolved Feb 2024 · 30% upfront claimed
Window still open — act now +£9,450
✕
2019
Northgate Cleantech — £8,000 SEIS
Struck off Apr 2022 · relief unclaimed
Carry-back window closed £1,800 missed
Total still claimable £12,825
across 2 of 3 companies audited
The dashboard

Your whole portfolio, at a glance

Risk-scored. Filterable. Exportable to CSV. Drill into any company for full filing history, shareholder data, and live press results.

5
Active
4
At Risk
£93k
Invested
Luminary Labs — Final Gazette: dissolved
Stonehaven — CS overdue 8 months
Helix Materials — Liquidation commenced
Risk dashboard
All your companies risk-scored in one view. Red flags surface instantly — no digging through filings yourself.
Data analysis on screen
Sortable portfolio table
Filter by risk, status, SEIS/EIS, date range. Sort by any column. Export to CSV in one click.
VB
Verdant Biotech UK Ltd
6 articles found
COVERAGE SUMMARY
Active biotech with two EIS funding rounds reported in TechCrunch and UKTN…
💰 £2.4m SERIES A
Investors: Mercia Ventures · via TechCrunch
Live press & funding search
Per-company web search for press releases, funding announcements, and news — with sentiment scoring and investor names extracted.
Why it matters

SEIS/EIS investors hear nothing
until it's too late

Companies House tells you what is officially filed. CompanyBeacon watches for you — translating public records into plain English before the company disappears.

"I invested in twelve early-stage companies. Three were dissolved before I even knew they were in trouble. I found out when the certificate arrived for loss relief."

JW
Angel investor
SEIS portfolio, 12 companies

"The strike-off notice is filed at Companies House. It's public. You just have to know to look. Most investors don't — and by the time they do, there's nothing left."

EIS
EIS fund manager
Portfolio of 40+ investees

"The gap is the timing. You could claim loss relief, you could act — but the window is short. Knowing when the Gazette notice goes up is the difference."

TA
Tax adviser
SEIS/EIS specialist
💡 You're not buying monitoring. You're recovering money you're already owed.

Priced on value recovered,
not features unlocked.

A single historical audit can recover £5,000–£30,000 in unclaimed SEIS/EIS loss relief. Ongoing monitoring prevents you missing the next window. The maths is simple.

73.5%
max recovery on a failed SEIS investment
4 yrs
window to amend a self-assessment return
£0
data stored — everything runs live from public records
Starter
£49/mo

New angels with a small portfolio. Catch failures before the window closes.

  • Up to 15 companies monitored
  • Weekly risk digest email
  • Strike-off & dissolution alerts
  • Loss relief calculator per company
  • Historical audit — last 3 years
  • SEIS/EIS certificate tracker
  • CSV export
If we find one unclaimed £5k relief: you've paid 8 years of this plan
Most popular
Investor
£149/mo

Active angels and syndicates. Daily alerts and full tax recovery tools.

  • Up to 75 companies monitored
  • Daily alerts — email + dashboard
  • Full risk signal suite
  • Insolvency & administration flags
  • Loss relief calculator — auto-triggered
  • Historical audit — full 10-year lookback
  • Live press & funding search
  • Multi-investor pivot view
  • Portfolio + tax summary export
Full 10-year audit + daily monitoring included
Pro
£399/mo

EIS fund advisers, tax professionals, and large syndicates.

  • Up to 300 companies monitored
  • Real-time alerts
  • Advanced filing pattern analysis
  • Bulk client portfolio management
  • Per-client tax recovery reports
  • Gazette notice monitoring
  • White-label investor portal
  • Priority support
Per-client reports for advisers & accountants
Scale
£799/mo

Wealth managers, family offices, and large EIS fund portfolios.

  • Up to 1,000 companies
  • Real-time alerts + webhooks
  • API access
  • Branded PDF tax recovery reports
  • Custom alert thresholds
  • Dedicated account manager
  • SLA uptime guarantee
  • HMRC self-assessment export format
Family offices & wealth managers
One-time purchase
Historical Audit — Single Report

Not ready to subscribe? Run a one-time audit on your past SEIS/EIS investments. We cross-reference Companies House records back to 2010, calculate every unclaimed loss relief opportunity, and show you what windows are still open. One report, no ongoing commitment.

£199
one-time · no subscription
Try before you commit. Monitor up to 5 companies free — no card required. The moment one shows a strike-off notice or dissolution, you'll see exactly what relief is claimable before you decide to upgrade.
The honest maths

If you invested £20,000 in a failed SEIS company and never claimed loss relief, you left up to £9,000 unclaimed. At £149/month, CompanyBeacon pays for itself in under 2 months if it finds one missed claim — and most investors with portfolios of 10+ companies have several. The monitoring is almost free by comparison.

All plans: cancel anytime · no long-term contract
Annual billing available — 2 months free
Historical audit included on Investor plan and above
Institutional & Family Office
Unlimited portfolio. Custom tax reporting. API access.

For EIS funds, wealth management firms, and family offices with 1,000+ investee companies. Custom pricing, dedicated integrations, bespoke tax recovery reports, and white-label investor portals.

£6,000–£18,000/year
Unlimited companies · API · custom SLA · branded reports
SEIS & EIS Tax Recovery

When a company fails, you can
still recover significant tax.

Most investors don't know what they can claim — or miss the window entirely. CompanyBeacon calculates it automatically and flags every relief opportunity the moment a company's status changes.

SEIS
Loss Relief on failed SEIS investments
Up to 73.5%

If your SEIS company fails, you already claimed 50% income tax relief. On the net loss, you can claim a further loss relief at your marginal rate (45% additional rate). Combined, you can recover up to 73.5% of your original investment.

£20,000 invested → worst case loss: £5,300
EIS
Loss Relief on failed EIS investments
Up to 61.5%

EIS gives 30% upfront income tax relief. If the company fails, claim loss relief on the net loss at your marginal rate (45%). Combined recovery of up to 61.5% of your original investment.

£50,000 invested → worst case loss: £19,250
SEIS & EIS
Capital Gains Tax exemption & deferral
0% CGT

Gains on SEIS/EIS shares held 3+ years are completely free of Capital Gains Tax. EIS also lets you defer existing capital gains by reinvesting them — recovering CGT paid in previous years.

Must be claimed — HMRC will not do it for you
Loss Relief Calculator

See exactly what
you can recover

Enter your investment details below. CompanyBeacon calculates your maximum claimable loss relief the moment a company shows a dissolution, strike-off, or insolvency signal.

  • Calculates net loss after upfront relief already received
  • Shows claimable loss relief at your tax band
  • Flags CGT deferral and exemption opportunities
  • Automatic alerts when your investee's status changes

This is an illustrative calculator only. Always consult a qualified tax adviser before making claims. HMRC rules change — especially around carry-back provisions and claim windows.

Loss Relief Calculator
Maximum claimable relief
£18,700
Combined upfront + loss relief · additional rate taxpayer
Amount invested£20,000
Upfront income tax relief (50%)+ £10,000
Net loss after relief£10,000
Loss relief at 45%+ £4,500
Worst case out of pocket£5,500
Indicative only. Carry-back provisions may increase relief further.
Consult a qualified SEIS/EIS tax adviser before claiming.
Historical Portfolio Audit

Invested in the past?
You may still be owed money back.

SEIS/EIS loss relief can often be claimed in the same tax year a company fails, or carried back to the previous year. Many investors have unclaimed relief sitting in old portfolios — CompanyBeacon finds it.

Example: 10-year portfolio audit
📋
April 2016
Invested £15,000 in Aphelion Energy Systems
SEIS round. Certificate received. 50% relief claimed in 2016/17 tax return.
Upfront relief already claimed+£7,500
⚠️
August 2021
Company struck off — no activity for 18 months
Aphelion Energy Systems Ltd struck off the register. Final gazette notice filed. Zero proceeds.
💰
2021/22 tax year
Loss relief claimable — window open
Net loss of £7,500 (after SEIS relief). Loss relief claimable at marginal rate.
Further loss relief available+£3,375
❌
Today — unclaimed
Investor never knew the company had failed
No alert received. No claim made. Carry-back window to 2020/21 now closed.
Missed relief — still claimable via amended return£3,375
🔍
Run a historical audit on your past investments

Upload a list of companies you invested in — including older ones. CompanyBeacon cross-references Companies House records going back to 2010 to find companies that have already failed, calculates what you could have claimed, and tells you whether any relief windows are still open.

4 yrs
Average window to amend a self-assessment return
73.5%
Max recovery rate on a failed SEIS investment
2010
Companies House digital records go back to
Free
Historical audit included on all paid plans

No data is stored. Results shown live in your browser.
Always verify claims with a qualified SEIS/EIS tax adviser.

Daily digest

Companies that went bust.
Stories worth knowing.

Every day we highlight recently dissolved, struck-off, or liquidated UK companies — with context on what happened, what they raised, who backed them, and what investors could have claimed.

Scanning Companies House for today's stories…

Blog posts are generated by AI using publicly available Companies House data and press coverage.
They are informational only and do not constitute financial or legal advice. Always see full terms.

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