Firms

Black Opal Ventures

Black Opal Ventures

New York, New York, United States

blackopalventures.comlinkedin.com

Black Opal Ventures is a healthcare and frontier-technology venture-capital firm co-founded in2021 by physician Tara Bishop and technology investor Eileen Tanghal. The exact New York advisory manager is Black Opal Ventures LLC, CRD322153, SEC exempt-reporting-adviser file802-126325; its directly retrieved annual FormADV is datedMarch23,2026, which supersedes the older March2025 indexed version. The manager, separate fund partnerships and GP companies are distinguished rather than represented as duplicate institutional buyers. The current public team lists five operating/investment staff, an executive adviser, an industry adviser and four venture partners; its separately published ten fellows are programme affiliations, not assumed full-time employees. The mandate spans AI-enabled healthcare, diagnostic and neurological technology, techbio, compute/infrastructure and security. Source-identified Black Opal investments include Empatica, Optellum, Hyro, Outpace, TigerGraph, AuthMind, Parasail, FlyteHealth and Isaac Health; the founders’ pre-Black-Opal Cerebras, Twist Bioscience, Sequans and Paragraf investments are expressly distinguished. The issuer’s2023 announcement said58MUSD raised to date while fundraising continued, not a final58M corpus. A laterAugust2024 SEC amendment reports its exact FundI partnership fully sold at62,665,000USD with zero remaining, including57,540,000USD from the earlier506(b) offering; those prior sales are included rather than added again. Exact final closingday is undisclosed. The current FundII PrimaryFund LP was formed in2026; itsAugust7,2026 FormD reported zero sold and firstsale yettooccur against an indefinite offering, so no fundraise target or actualcorpus is invented. Privatefund GAV/AUM and LP organisational capital are not treated as fundraising closes. Isaac Health’s primaryAugust14,2025 SeriesA explicitly names Black Opal as a new participating institution, with individual allocation and subscribing fund unpublished. The public roster’s advisers and fellows, outside positions and dated career affiliations do not create personal investment checks.

Founded
2021
Type
Venture capital

Funds2

  • Black Opal Ventures Fund I, L.P.$62M

    Exact legal Delaware FundI partnership, SEC CIK1908161 and ADV805-9201672519, managed by Black Opal Ventures LLC with Black Opal Ventures GP LLC as GP. August20,2024 FormD amendment reports62,665,000USDfullysold/zero remaining, including57,540,000 sold under prior506(b) exemption. This is a cumulative fully sold subscription corpus, not a new62.665M incrementalraise plus the prior57.54M. Earlier2023announcement58Mraisedtodate while fundraisingcontinued is superseded as the latestdisclosedfullysoldamount; it was not a final58Mclose. FirstcloseFebruary2022/monthonly andfirstsaleDecember8,2023fornew506(c)portion do not establish finalclosingday, retainedNULL. AUM/GAV excluded.

  • Black Opal Ventures Fund II - Primary Fund, L.P.—

    Exact Delaware2026 partnership SEC CIK2145549, managed by Black Opal Ventures LLC with distinctBlackOpalVenturesIIGPLLC as GP. August7,2026newFormD reports firstsale yettooccur, zero investors/zero sold and indefiniteofferingamount. This source proves a legal fundraisingvehicle, not an actualfundclose. Verifiedcorpus/finalclosingdayNULL; no58M/62.665MFundIcarryover or inventedtarget.

Team

Joseph Jeong
$25M$50K – $150MPalo Alto, California
Franco Danesi
—— – —

Operations and support

Azan Zahir VirjiAzan Zahir VirjiFellow (public programme affiliation)
Brendan JohnsonBrendan JohnsonFellow (public programme affiliation)
Carina TyrrellCarina TyrrellVenture Partner
Celine GaucheyCeline GaucheyFellow (public programme affiliation)
Eileen TanghalEileen TanghalFounder & Managing Director · Manager and Member, Black Opal Ventures LLC
Eve CastelEve CastelVenture Partner
Hanna EdgrenHanna EdgrenChief of Staff & Venture Analyst
Justin BhandariJustin BhandariFellow (public programme affiliation)
Justin Craib-CoxJustin Craib-CoxHead of Investments
Karthik RamasubramanianKarthik RamasubramanianVenture Associate
Kshiteej PrasadKshiteej PrasadFellow (public programme affiliation)
Pranav BalanPranav BalanFellow (public programme affiliation)
Renee LambRenee LambFellow (public programme affiliation)
Sandy UwimanaSandy UwimanaFellow (public programme affiliation)
Simon SegarsSimon SegarsExecutive Advisor
Tamra LairTamra LairIndustry Advisor · Investment Committee (published embedded biography)
Tara BishopTara BishopFounder & Managing Director · Manager and Member, Black Opal Ventures LLC
Topaz AharonTopaz AharonFellow (public programme affiliation)
Vanessa StephensVanessa StephensFellow (public programme affiliation)

Co-investing

Investments