Aventro vs Harmonic for due diligence
For diligence on a company already in front of you, pick Aventro: it checks the deck’s claims against the official register with the match tied to the company, reads the deal against your fund’s versioned mandate and records the decision with its reasons. Harmonic is a startup database built to find companies early, and its pages describe research reports drawn from its own data and the web, with no checks against official registers listed.
By Dor Tagger, co-founder & CTO · Updated . Sources are listed at the end.
Side by side
“Aventro only” marks what Harmonic’s own pages do not list. Harmonic’s column is cited and dated below.
| Question | Aventro | Harmonic |
|---|---|---|
| Claims checked against official registersAventro only | AventroEach claim is checked against the official record it should appear in: company registers in Israel, the UK, the US, Norway and Finland, GLEIF, SEC EDGAR and patent offices, 35 published sources in all. A match counts only when something like a registered number ties it to the company; a name match is reported as a lead.1,2 | HarmonicAgentic research reports drawn from Harmonic’s own data and the web. Checks against official registers are not listed.3 |
| Contradictions across deck, documents and callsAventro only | AventroEvery document is read as it arrives. When the deck, the accounts and a call disagree on a figure, each reading is shown side by side with a question you can send the company, and a figure said on a call is compared too.4 | HarmonicNot listed on the pages cited.3,5 |
| Returns on your chequeAventro only | AventroYour ownership, diluted round by round to exit, across five scenarios from failure to a home run, computed with no model call and with every base rate cited beside the number it produced.6 | HarmonicNot listed on the pages cited.3,5 |
| The decision and its reasonsAventro only | AventroEach partner records a position before seeing anyone else’s. A person records the decision with their reasons, freezing what it was made on, and Memory keeps it and checks the condition you set for looking again.7,8 | HarmonicYou can track opportunities and collaborate. Recorded decisions and their reasons are not listed.3 |
| The company answers on the same recordAventro only | AventroGaps go to the company as requests it answers in its own workspace, on the same record. Aventro reads each answer against what was asked, and a company never accepts its own answer.4 | HarmonicNot listed on the pages cited.3,5 |
| Your mandate on every dealAventro goes further | AventroFund Fit reads every deal against your Fund DNA, criterion by criterion, met or missed. Exclusions are gates rather than deductions, and every score names the Fund DNA version it was judged on.9,10 | HarmonicGranular filters on its data, and Scouts that run on a schedule. Scoring a deal against your mandate, criterion by criterion, is not listed.3 |
| After the decisionAventro goes further | AventroAfter the decision, the record is compared every day with what the decision was made on (the figure then, the figure now), the public registers are checked again, and serious changes send a notice.11 | HarmonicScouts for portfolio momentum and leadership changes. Comparing each company with what the decision was made on is not listed.3 |
| What it is | AventroThe AI due diligence and deal flow workspace a venture fund makes its investment decisions in.12 | HarmonicIn its own words, “the startup discovery engine” and “the source of truth for startups”.3 |
| Pricing | AventroOne annual contract for the whole team, quoted on seats and deal volume after a free demo on one live deal of yours.13,14 | HarmonicNot published. Each plan (Console access, API access, Bulk data) has a “Get pricing” button.5 |
Also only in Aventro
The smaller things a fund uses every day. None of them is listed on Harmonic’s pages cited3,5.
Calls turned into follow-ups
Add a call recording or transcript and it is read for who said what and when. A promise to send something becomes a request with its date, a figure said aloud is compared with the deck and the accounts, and tone is read from the words only, never voices or faces.15,16,4
The fund’s own deal inbox
Forward a deck to your fund’s address and it lands as one opportunity, screened against your Fund DNA on arrival if you choose. The same deck sent twice attaches to the same company.17
Forty decks, one ranked table
Drop up to forty decks and get them back ranked by Fund Fit, screened from the deck and the public registers before any founder knows you are looking.18
Actions drawn as cards in the chat
Ask Aventro AI to request a document, invite the company, move a stage, fill a field or record your position, and it draws a card you edit and press. Nothing happens until you do.19,20
Files dropped in the chat get filed
Drop a document into the conversation and Aventro AI proposes where it belongs on the record, and what it changes field by field, for you to accept.19,20
Positions before the vote
Each partner records a position before seeing anyone else’s. The count is visible to everyone; the content is not, until you have answered.7
What-If on the score
Model a hire, a raise or a resolved flag and the affected modules recompute with your weights, labelled as a projection.21
Health and fintech checks built in
A health company is checked against the FDA’s device records, EUDAMED and the trial registries for the route it states. A fintech is asked about its licences, its partner bank and credit losses.1,4
Assumptions you can watch
Each assumption a decision rested on shows whether it still holds, with what would prove it wrong.11,20
A reason to look again
Write the condition when you reject a deal. Memory checks a figure, an event or a date against what your fund holds now, and shows a judgment to you.8
Reports shared your way
Share a report by link with a password, an expiry date and the sections you choose, or invite named people. The PDF is rendered from the same page.22
Fund economics stay with the fund
The fund’s copy carries its fund size, its cheque and the exit that returns the fund. The company’s copy, and any shared copy, is built without them.22
One Work queue
Contradictions to settle, gaps to fill and requests waiting on the company, in one queue.4
The company’s whole team on one record
More than one person from the company can work on the record and answer your requests.23
When to pick Aventro
The longer list is the diligence. The shorter one is honest.
Pick Aventro when
- A claim has to hold up at your investment committee, so it needs the official register record and the identifier that ties it to the company, not a web page or a matching name.1,24
- You want your mandate applied to every deal the same way, criterion by criterion, with exclusions as gates and the Fund DNA version named on the score.9,10
- Your data room holds a deck, management accounts and call transcripts that should agree, and you want to know the moment they don’t, with the question for the company already drafted.4
- You want each partner’s position recorded before anyone sees the others’, and the decision kept with its reasons on a record your fund can return to.7,8
- You want gaps sent to the company and answered on the same record, with each answer read against what was asked, not chased by email.4
- You want the returns on your own cheque done by code, with every base rate cited beside the number, not estimated by a model.6
- You want to see it on a company you already know before any quote: bring one live deal to a free demo and see which claims get flagged that your team had not reached yet.14
When Harmonic is enough
- Your job is finding companies early, from hiring, funding and product signals, before they reach you.3
Questions
We use Harmonic for sourcing. Where does Aventro fit?
Once the company reaches you. Harmonic finds and follows companies; Aventro checks what the one in front of you claims against the official record, reads it against your mandate and keeps the decision with its reasons. A deck forwarded to your fund’s inbound address can be screened as it arrives.
Can Aventro screen a batch of decks?
Yes. Drop up to forty decks at a time, as PDF or PowerPoint. Each one is screened against your Fund DNA from the deck and the public registers, and the batch comes back as one ranked table.
Does Aventro make the investment decision?
No. Aventro screens, checks and drafts. A person on your team records the decision, with their own reasons, and Aventro does not give investment advice.
Bring one live deal
Free, on one of your own deals. See it on a company you already know, before any quote.
- A live deal screened against your own Fund DNA
- Which claims we flagged that your team had not reached yet
- How claims get checked against official registers and public filings
- Your own IC memo template, filled from the deal
- What pricing looks like for your seats and deal volume
Sources
What this page says about Harmonic comes from their own public pages, each read on the date listed (the latest 20 October 2026). “Not listed” means the pages cited do not list it on that date. If one has changed, write to hello@aventro.ai and we will correct this page.
- 1Aventro, Docs: Verification. aventro.ai/docs/verification
- 2Aventro, Verification sources. aventro.ai/verification
- 3Harmonic, Harmonic.ai - The complete startup database, read 20 October 2026. harmonic.ai
- 4Aventro, Docs: Diligence. aventro.ai/docs/diligence
- 5Harmonic, Pricing, read 20 October 2026. harmonic.ai/pricing
- 6Aventro, Docs: Exit and returns. aventro.ai/docs/exit-returns
- 7Aventro, Docs: Decision. aventro.ai/docs/decision
- 8Aventro, Docs: Memory. aventro.ai/docs/memory
- 9Aventro, Docs: Screening. aventro.ai/docs/screening
- 10Aventro, Docs: Fund DNA. aventro.ai/docs/fund-dna
- 11Aventro, Docs: Monitor. aventro.ai/docs/monitor
- 12Aventro, Docs: Start guide. aventro.ai/docs/start-here
- 13Aventro, Pricing. aventro.ai/pricing
- 14Aventro, Book a free demo: Bring one live deal. aventro.ai/book-a-demo
- 15Aventro, Privacy Policy. aventro.ai/privacy
- 16Aventro, Changelog. aventro.ai/changelog
- 17Aventro, Docs: Opportunities. aventro.ai/docs/opportunities
- 18Aventro, Docs: Cohorts. aventro.ai/docs/cohorts
- 19Aventro, Docs: Aventro AI. aventro.ai/docs/aventro-ai
- 20Aventro, Docs: Prompt library. aventro.ai/docs/prompt-library
- 21Aventro, Docs: What-If simulations. aventro.ai/docs/simulations
- 22Aventro, Docs: Reports and sharing. aventro.ai/docs/reports
- 23Aventro, Docs: For companies. aventro.ai/docs/for-companies
- 24Aventro, Blog: How an AI due diligence tool should verify a company. aventro.ai/blog/how-ai-due-diligence-should-verify-a-company
Harmonic is a trademark of its owner. Aventro is not affiliated with it.
Related
- How does AI pitch deck screening work for inbound decks?How AI screening of a fund’s inbound pitch decks works in Aventro: one inbound address, screening on arrival against the Fund DNA, fit and strength apart, exclusions as gates, and batches of up to forty.
- Aventro vs PitchBook for due diligenceAventro beside PitchBook, the private-market data provider, on due diligence: one company’s claims matched to official registers, contradictions and the decision record are listed only by Aventro, with every PitchBook fact cited to PitchBook’s own pages.
- How to choose due diligence software for a venture fundA buyer’s guide for venture funds: the kinds of tool in a fund’s stack, seven questions to ask a due diligence vendor, and a due diligence checklist of what to verify and where.