Funding profile · Healthcare IT

The Human Diagnosis Project

A collective intelligence platform that runs on two balance sheets: one Delaware corporation that sold equity once, in 2013, and one charity whose reported revenue peaked at about $1.0 million and then fell to $56,693.

$2.80MSold in the only Form D on record, filed October 2013
15Investors in that offering, about $186,900 each
$3.08MCharity revenue reported to the IRS across FY2016 to FY2021
$56,693Charity revenue in FY2021, the last year with a filing

Data as of September 22, 2026. Company-reported figures are labeled.

Rounds at a glance

When Round Amount Investors Source
2012 Y Combinator, Summer 2012 Not disclosed Y Combinator YC data
Sep to Oct 2013 Equity offering, Rule 506(b) $2,803,634 offered and sold 15 investors; directors listed as Jayanth Komarneni, Irving Lin and Albert Wenger Form D
May 2016 Charity recognized by the IRS $925,000 contributed that year Not named in the filing data Form 990
2017 MacArthur 100&Change competition $100,000,000 sought, not won MacArthur Foundation Independent
2017 to 2019 Charity contributions $515,775, then $1,002,063, then $446,092 Not named in the filing data Form 990
2020 to 2021 Charity revenue $135,050, then $56,693 Not named in the filing data Form 990
2014 to 2026 Further Regulation D offerings None on file None Not found

What the filings show

Human Dx, Ltd. · Form D · filed Oct 3, 2013

First sale
Sep 18, 2013
Offered
$2,803,634 equity
Sold
$2,803,634 · $0 remaining
Investors
15 · average about $186,900
Exemption
Rule 506(b) · no non-accredited investors
Issuer
Corporation, incorporated in Delaware in 2012, San Francisco, CA · industry given as Other Technology · revenue range: decline to disclose
Related persons
Jayanth Komarneni (executive officer, director); Irving Lin (director); Albert Wenger (director)
Filing
SEC EDGAR, CIK 0001588134

Reading the filings

  1. One filing in thirteen years.Human Dx, Ltd. has filed a single Form D, on October 3, 2013, and nothing since. That is unusual for a company still shipping product in 2026. It is not proof that no money moved: issuers that raise under Section 4(a)(2) rather than Regulation D file no Form D at all, and a charity raising grants files none either.
  2. The checks were seed size, not angel size.$2,803,634 divided by 15 investors is about $186,909 each. That is institutional or large-angel money, not a crowd.
  3. The round closed exactly.Amount offered and amount sold are the same figure to the dollar, with zero remaining. Filers who are still raising usually report a round number offered and a smaller amount sold. This one reads as a completed round reported after the fact.
  4. The board on the filing is the founding board.Three names: the founder, Irving Lin, and Albert Wenger. A 2025 PNAS competing interests statement identifies Lin as a cofounder of the Project and states that he and Komarneni hold personal financial interests in it.
  5. The charity is the smaller pool, and it shrank.Human Diagnosis Project Ltd, EIN 81-0865879, reported $3,080,972 of total revenue across FY2016 to FY2021 against $3,046,203 of expenses. Revenue peaked at $1,002,362 in 2018 and was $56,693 by 2021. Total assets at the end of 2021 were $38,823.
  6. It spent ahead of its income while it was scaling.FY2017: $952,463 of expenses against $515,775 of revenue. FY2018: $1,514,823 against $1,002,362. Those two years alone ran about $949,000 past income, which is roughly what the 2016 contributions had banked. ProPublica’s Nonprofit Explorer records no filing after FY2021 and notes the organization “is not listed in the IRS’s most recent list of tax exempt organizations.”

Commercial signals

Signal Detail Source type
Regulatory No FDA 510(k) or PMA record and no registered clinical trial found. The platform is a doctor-to-doctor tool, not a regulated device. Public record
Federal funding No NIH or NSF award found under the company name. Not found
Product Android app updated April 3, 2026, more than 10,000 downloads, 812 ratings, developer listed as Human Dx, Ltd., 2700 19th St, San Francisco. Public record
Revenue model Free to physicians as of 2017, with volunteer specialists. Forbes reported in March 2026 that the founder is developing a cooperative model that pays contributors by the value of what they contribute. Independent
Paid comparison RubiconMD, a paid eConsult platform aimed at the same buyers, raised an $18 million Series C in March 2020 and reported more than $40 million raised to date. Independent
Evidence Eight PubMed-indexed papers use Human Dx data, including two in PNAS and two in JAMA Network Open. Public record

What to watch

  • A second Form D from Human Dx, Ltd. It would be the first equity filing in more than a decade.
  • A resumed Form 990, or a restored listing for the charity in the IRS master file.
  • Named terms for the cooperative compensation model described to Forbes in March 2026.
  • Any disclosure of eConsult volumes from the 2017 Alliance program.

The Human Diagnosis Project story on Healthcare DiscoveryHealthcare Discovery

Related companies

  • Glass Health: Also in Healthcare IT. An AI tool that reads a one paragraph patient summary and returns a ranked differential diagnosis, now sold alongside an ambient scribe
  • Mednet: Also in Healthcare IT. A physician-only question and answer network that began with oncologists and now claims 23 specialties
  • BloomAPI: Also in Healthcare IT. A Y Combinator company that set out to end the medical records fax, then quietly turned into a HIPAA texting app
  • Health Harbor: Also in Healthcare IT. A Y Combinator backed startup whose AI agent calls health insurance companies on behalf of medical clinics, chasing down benefits, prior authorizations and claim status

Sources

  1. Public recordForm D, Human Dx, Ltd., CIK 0001588134SEC · Oct 3, 2013
  2. Public recordHuman Diagnosis Project Ltd, EIN 81-0865879, Forms 990 for FY2016 through FY2021IRS, via ProPublica Nonprofit Explorer
  3. Public recordHuman Diagnosis Project Ltd exempt organization recordTaxExemptWorld · accessed Sep 22, 2026
  4. Public recordHuman-AI collectives most accurately diagnose clinical vignettes, with competing interests statementPNAS · Jun 17, 2025
  5. Public recordHuman Dx app listing, developer Human Dx, Ltd.Google Play · accessed Sep 22, 2026
  6. IndependentHow Collective Intelligence Could Soon Reshape Medical Decision-MakingForbes, Spencer Dorn · Mar 12, 2026
  7. IndependentRubiconMD Secures $18M in Series C Financing Led by Deerfield to Fuel Growth in Primary CareBusiness Wire · Mar 10, 2020
  8. IndependentNew Human Dx Alliance Looks to Reach Underserved Americans With Technology360Dx, Neil Versel · Aug 18, 2017
  9. CompanyA National Healthcare Alliance for the Underserved of AmericaThe Human Diagnosis Project on Medium · Aug 10, 2017
  10. CompanyHuman Dx company record and Summer 2012 batch listingY Combinator · accessed Sep 22, 2026

Compiled from SEC, IRS and other public records and published reports as of September 22, 2026. Form D notices report offerings under Regulation D; amounts reflect the filing date and may not capture later sales. Form 990 figures are as extracted by the IRS from the filed returns. Healthcare Venture Capital Fund holds no position in the Human Diagnosis Project or Human Dx, Ltd. This page is not an offer to sell or a recommendation to buy any security.