Agentic software for angel investors.
Run a full due diligence report in minutes: Companies House, the FCA, sanctions, the courts, real traffic data. Then monitor what happens to your investments: filings, press and digital presence, interpreted the day they land.
Which sectors are valued most, where the risk lies, which sectors raise the most follow-on rounds, and what the mark-ups really are.
Nine findings, every number verified back to source documents. Free to read.
Read the report →Bought separately: £150+ a month.
With Tero: £7 a month.
European angel market, Dealroom data · tripled over the decade
Visits to the company's website, month by month (Google searches, Semrush) · +35% in three months
Your first report is free.
First report freeAgriBot closes a $40m Series B: a better-funded rival now sells into the same growers.
Named in TechCrunch's vertical-farming roundup. Sentiment positive; no action needed.
EU tightens pesticide rules: a tailwind for robotic weeding. Two rivals repositioned within days.
New allotment implies ~£12.3m post-money, 2.1× the 2024 round. Your 4.2% is now ~3.6%.
+35% in three months · visits to the company's website, checked fortnightly
“AgriBot just raised $40m: how do you defend your top ten accounts?” · “After the new round, what is your fully diluted position?”
Tero keeps screening the register, the press and each company's digital presence, informs you the day something lands, and turns it into a summary of questions to bring to the companies you invested in.
Check any UK company in seconds.
Status, directors with disqualification screening, who holds the equity, filing health, and the last filed round with its implied valuation — parsed from the actual SH01.
What is EIS actually worth?
Every relief side by side with the same investment unsheltered — income tax, capital gains on your other assets, even inheritance tax — every number broken down, every rule sourced.
The Class of 2023: what the register says about Britain's first AI-era startup generation.
Tero read the complete Companies House record of all 894,494 companies incorporated in 2023. Nine findings, every number verified back to source documents: the real venture universe, which sectors get marked up, and the two dials that decide the odds.
When the checker raises questions, the report answers them.
The checker reads the registers. The full Tero report goes where registers cannot: the pitch deck, the market, the competition, the founders' track records and the digital footprint, nine research modules cross-checked against 12+ official sources with an adversarial pass before anything is stated.
Real traction in a documented niche; the sticking point is a valuation running ahead of the filed record.
One tool that combines all the sources.
Proper startup due diligence means checking a dozen registers and databases, one by one. Most angels check two, or none. We enable UK angels with a single gateway: Tero holds the connections (official APIs, licensed data subscriptions, live web research) so one login replaces the dozen tabs.
Tero never takes a founder's claims at face value. Every company is verified directly against the official Companies House register, then cross-checked with the FCA register, sanctions lists, court records and the live web.
One investor, a dozen tabs, logins and PDFs. An evening per deal, so most checks never happen.
One connection. Tero maintains the pipes: official APIs, licensed data subscriptions and live web research. Every report lists each check it ran, including the clean ones.
- Companies House official API: live company status, officers, PSC register and full filing history
- Disqualified-directors register
- OFSI, OFAC & UN sanctions lists, screened live
- The Gazette: insolvency, bankruptcy & winding-up notices
- Court judgments via Find Case Law (The National Archives)
- Adverse-media sweep for litigation & regulatory mentions
- FCA Financial Services Register: firms & individuals
- Real monthly website-traffic estimates, charted (SEMrush)
- Apple App Store ratings & review counts
- Live hiring boards & open-role counts
- GitHub developer activity
- Trustpilot, G2, Reddit & app-store reviews
- SH01 allotment filings, parsed: real raise sizes & price per share
- Live web research with every claim cited
- Funding databases & press, cross-checked
- Comparable-market sizing where none exists yet
- Business-plan assumptions, pressure-tested
- SEIS/EIS scheme signals: advance-assurance claims tested
Every UK share issue must be filed at Companies House on form SH01, with the actual price paid per share and the full share count. It's buried in PDFs almost nobody reads. Tero reads them: real raise sizes, implied valuations, staged rounds and dilution, all computed from the filed record and set against whatever the founder's deck claims. When a portfolio company files a new allotment, you get the alert.
Checks run via official APIs and public registers. Where a source can't be reached, the report says so. Honesty about what wasn't verified is part of the product.
Structured due diligence, run by AI agents.
Give Tero a name, a URL or a deck. It extracts every claim into an evidence ledger, checks it against the official Companies House record and the other registers, researches nine modules in parallel, then a second, sceptical agent attacks the judgment calls and forces an evidence-backed revision before anything reaches you. When the report lands, ask Tero any follow-up question in chat, and export the whole memo as a PDF for your co-investors. Open any module below.
Every module graded green · amber · red, with the evidence one click away and a risk register of what could go wrong.
Market size, funding comparisons, real monthly traffic. All drawn from sourced numbers, never invented.
One-click PDF export with every chart and check, built to be sent to co-investors. Then ask the analyst follow-ups in chat.
After you invest, Tero keeps watch.
Angel positions go quiet for years, until the one week they don't. Tero watches the registers, the filings and the news for every company you hold, and interrupts you only for the things that matter.
Tero watches news for every company you hold and tells you what each story means for your position. One honest line, not a clippings folder.
The moment a portfolio company files a new share allotment (SH01), you get the alert with the implied valuation. Often before the press release, sometimes instead of one.
Director resignations, charges over assets, insolvency and strike-off activity, pulled from Companies House filings rather than rumours.
Every Monday: portfolio performance, an AI-written read on the week, and the news behind it. In your inbox before your coffee.
Certificates chased, claim deadlines watched, clawback dates on record, and your true net downside per position, computed.
A portfolio analyst in the sidebar, grounded in your holdings and their news, extended by live search. It can even launch a diligence run from chat.
2,150 new ordinary shares at £3.12 implies £6.8m post-money. Your 1.9% becomes 1.7%.
Validates the enterprise channel your thesis rested on; watch fulfilment costs in the next accounts.
A senior finance hire at seed stage usually precedes a raise or an audit. Worth a founder call.
Your data, guarded like your portfolio.
Your data is stored and processed in London, isolated per account at the database layer, and encrypted in transit and at rest. Export everything as JSON, or erase your account with one click. It takes effect immediately, no email required. Every processing purpose has a named lawful basis in our privacy policy.
TRCPL Ltd (trading as Tero) is registered with the UK Information Commissioner's Office as a data controller. We never sell your data, run no advertising trackers, and your portfolio's contents are invisible even to our own admin tooling, which sees usage counts, not what you hold.
Why not just ask ChatGPT?
Fair question. Tero is built on the same frontier AI models that power ChatGPT, Claude and Perplexity. The difference is everything wired around them: live connections to the official registers, licensed data a chat window cannot reach, and a verification discipline no single prompt can replicate. A chat assistant gives you a well-written summary of what the internet says. Tero checks what the internet says against what was actually filed.
| What a proper check needs | General AI chat | Tero |
|---|---|---|
| Live official registers at run time: Companies House, FCA, OFSI sanctions, The Gazette, court records | —Recalls training data; cannot query the registers | ✓Queries the official APIs the moment you run the report |
| The real filed round: SH01 allotment PDFs parsed into raise size and implied valuation | —Cannot open or parse register filings | ✓Reads the filing nobody reads, and compares it to the deck |
| Licensed market data: traffic history, search keywords, competitors' ads, domain authority | —No access to paid data sources | ✓SEMrush-grade search intelligence in every report |
| Verification, not narration: every claim cross-checked, then challenged by an adversarial review pass | —One answer, one pass, tuned to be agreeable | ✓Claims verified against independent sources; a sceptic agent attacks the draft before you see it |
| The same rigour every time: nine structured modules, calibrated verdicts, an exportable memo | —A different wall of text each time you ask | ✓Comparable reports, verdict discipline, PDF for your co-investors |
| A memory: filings, allotments and news watched after you invest | —The answer is frozen the moment it is written | ✓Monitoring that alerts you when the register changes |
Judge it on the output, not the argument: read a full example report, then ask your favourite chatbot for the same depth on any UK startup.
