/Investor DB

Also Capital — Full Portfolio

40 tracked investments · listed companies and verified rows first

River Technologiesrivertechnologies.com✓ verified

River Technologies builds custom software from scratch for financial firms, including global investment banks, hedge funds, alternative asset managers, and sovereign wealth funds.

AI & Machine LearningEnterprise SoftwareFintechNew York City, US

PartnerMike Annunziata· solo GP

Co-investorsFounders FundPetraTimeless Partners VenturesBain CapitalFirst AnalysisGreat Hill Partners

Varda Space Industriesvarda.comin𝕏✓ verified

Varda industrializes low Earth orbit by manufacturing pharmaceuticals and other specialized products in space, then returning them to Earth via reusable reentry capsules.

BiotechDeep TechSpace TechEl Segundo, US

Will Bruey(Founder)inDelian Asparouhov(Founder)inDaniel Marshall(Founder)Trae Stephens(Director)Josh Wolfe(Director)

PartnerMike Annunziata· solo GP

Co-investorsCaffeinated CapitalFounders FundGeneral CatalystKhosla VenturesLux Capital137 Ventures+37 more

4D Surgical4dsurgical.com

4D Surgical develops imaging technology for image-guided surgical procedures.

HealthtechMedical Devices

PartnerMike Annunziata· solo GP

Co-investorsCreative Destruction Lab (CDL)Mythos Ventures Management, LlcInflect Health

Andrenam AI-powered maritime sensingandrenam.comin𝕏

Andrenam builds an AI-powered distributed maritime sensing network using mass-manufacturable sonar buoys and sensor payloads for persistent undersea awareness from surface to seabed.

AI & Machine LearningDefense TechHardware

Alex Chu(Founder)Matej Cernosek(Founder)

PartnerMike Annunziata· solo GP

Co-investorsFirst Round CapitalHomebrewLong Journey VenturesMINES VENTUREUpfront VenturesWave Function Ventures

AnySignalanysignal.io

PartnerMike Annunziata· solo GP

Co-investorsUpfront Ventures

Atlasatlasds.comin𝕏Aug 2026

AtlasBase builds a hybrid Bio-Silicon platform that stores digital data in synthetic DNA and performs computation directly within the molecules, offering petabyte-scale archives with near-zero power and long-term durability.

BiotechData & InfrastructureDeep Tech

Co-investorsEarth FoundryEnergy FoundryIn-Q-TelAccelBlackRockGreycroft+1 more

Atlasheyatlas.comAug 2026

A workspace of the future platform co-founded by former Fintual alumni.

Gianina Rossi(Founder)in

Co-investorsFirst Row PartnersHi Ventures2048 VenturesAccelBlackRockGreycroft+1 more

Atlasatlas.redinAug 2026

Atlas is a real estate platform that provides property listings and mapping tools for the Puerto Rico real estate market.

B2B MarketplacesData & InfrastructureMarketplacesPropTechSan Juan, PR

Co-investorsFronturesAccelBlackRockGreycroftMana Ventures

Biospherebiosphere.earth

PartnerMike Annunziata· solo GP

Conductorconductor.ai

PartnerMike Annunziata· solo GP

Cosmic Roboticscosmicrobotics.comin𝕏Seed

Cosmic Robotics develops autonomous construction equipment for critical infrastructure projects, starting with solar installations.

Advanced ManufacturingCleantechConstruction TechRoboticsSan Francisco, US

James Emerick(CEO)inLewis Jones(CTO)in

Co-investorsGiant Ventures Global LlpHCVCMaC Venture CapitalTranspose Platform ManagementWSSY Combinator+23 more

Float Healthfloathealth.comin𝕏Jun 2023

Float operates a technology platform that enables nurses to administer specialty medications to patients at home, serving patients requiring specialty infusions and healthcare providers seeking to shift treatment delivery from hospitals and clinics.

Digital HealthHealthtechMarketplacesMedical DevicesCarlsbad, US

Ryan Johnson(Founder)inChristy Johnson(Founder)inLauren Sullivan(Executive Officer, Director)in

BoardMike Ghaffary(Director)inSara Adler(Director)in

PartnerMike Annunziata· solo GP

Co-investorsCanvas VenturesY CombinatorWave Capital

Floathealthfloathealth.io

PartnerMike Annunziata· solo GP

Fluidstackfluidstack.ioin𝕏Jun 2026

Fluidstack develops infrastructure for AI by rapidly deploying compute capacity, enabling delivery of gigawatts of computing power in six months compared to industry standards of 18-24 months, with focus on data center acquisition, design, operation, and supporting major AI infrastructure projects.

AI & Machine LearningCloud ComputingLondon, US

Gary Wu(Founder)inCésar Maklary(Founder)Peixian Wu(Director and CEO)Peter Francis(Founder)inJason Kichen(Chief Infomation Security Officer)inMalachi Price(Chief Business Officer)

PartnerMike Annunziata· solo GP

Co-investors7GC & Co91 VenturesAntlerBridge VenturesDuke Capital PartnersEpisode1+11 more

goTennagotenna.comin𝕏acquired by Forterra · Oct 2025

goTenna builds mesh networking hardware and software for off-grid connectivity in mission-critical operations.

Defense TechHardwareIoTBrooklyn, US

Daniela Perdomo(Founder)Jorge Perdomo(Founder)

BoardLarry Marcus(Director)John Levy(Director)

PartnerMike Annunziata· solo GP

Co-investors3Spoke CapitalBloomberg BetaCadron Capital PartnersCollaborative FundComcast VenturesIronGate Capital Advisors+15 more

Integralintegral.xyzin𝕏

Integral is a crypto accounting and financial management platform built for web3 businesses, handling bookkeeping, treasury, tax compliance, and auditing for cryptocurrencies, NFTs, and other digital assets.

Crypto & Web3FintechSaaS

Gui Laliberté(Founder)

Co-investorsFranklin TempletonCoinbase VenturesElectric CapitalRecall CapitalArray Ventures Management LlcCaffeinated Capital+7 more

Integraluseintegral.comin𝕏

Integral provides a platform that assesses re-identification risk, applies signal-preserving privacy remediation, and produces audit-ready documentation to prepare real-world sensitive data for AI and analytics.

AI & Machine LearningCybersecurityData & InfrastructureDigital HealthEnterprise SoftwareHealthtechSaaSSan Francisco, US

Shubh Sinha(Founder)in

Co-investorsArray Ventures Management LlcCircle & Co.GaingelsGreatPoint VenturesLifeX VenturesVirtue Ventures+4 more

Integralintegral.health𝕏

PartnerMike Annunziata· solo GP

Integral AIintegral.aiin𝕏

Integral AI builds interactive world models, an agent generation platform for creating digital and real-world agents, and a multimodal input/output interface.

AI & Machine LearningDeep TechRobotics

Jad Tarifi(Founder)inNima Asgharbeygi(Founder)in

Co-investorsGrit VenturesSamsung NextValkyrieArray Ventures Management LlcCaffeinated CapitalCircle & Co.+5 more

K2 Spacek2space.ioin𝕏Feb 2023

The page is an online gambling/betting operator ("OK9") targeting Vietnamese players, offering sports betting, online casino, slots, fish-shooting games, lottery, and card games.

Deep TechHardwareSpace TechWest Hollywood, US

Neeldev Kunjur(Executive Officer, Director)Karandev Kunjur(Executive Officer, Director)Karan Kunjur(Founder)inNeel Kunjur(Founder)in

PartnerMike Annunziata· solo GP

Co-investorsAlpine Space VenturesAsymmetric Capital PartnersCapitalGEarthrise VenturesFirst Round CapitalGaingels+22 more

Meshopticalmeshoptical.io

PartnerMike Annunziata· solo GP

Metalwaremetalware.comin𝕏Jul 2026

Metalware provides autonomous binary security testing for firmware without requiring source code, hardware, or test harnesses.

CybersecurityDeep TechEnterprise SoftwareHardwareSan Francisco, US

Ryan Chow(Founder)inAndrew Nedea(Founder)in

Co-investorsEight CapitalPioneerY CombinatorCommodity CapitalCountdown CapitalFirst Round Capital+11 more

Nexa Labsnexa.farminAcquired

Nexa develops implantable microchips and herd management software for farmers to monitor cattle health and detect disease early.

Advanced ManufacturingAgTechAI & Machine LearningHardwareIoTSan Francisco, US

Zarif Azher(CEO)inKenneth Chan(Founder)inAlvin ZhangSamuel Xie

PartnerMike Annunziata· solo GP

Co-investorsY Combinator

Northwood Spacenorthwoodspace.ioApr 2026 · $30M

Northwood provides end-to-end ground infrastructure for space missions, from concept through deployment to live data delivery.

Deep TechHardwareSaaSSpace Tech

Shaurya Luthra(Founder)inBridgit Mendler(Founder)Griffin Cleverly(Founder)

PartnerMike Annunziata· solo GP

Co-investorsAlpine Space VenturesAlumni VenturesAndreessen HorowitzAurelia FoundryBalerion Space VenturesBoxGroup+13 more

Northwoodspacenorthwoodspace.com

PartnerMike Annunziata· solo GP

Radiantradiant.energy

PartnerMike Annunziata· solo GP

ShipIn Systemsshipinsystems.com

Newton, US

OSHER PERRY(Executive Officer, Director)

BoardMATT WALLACH(Director)inOREN ZEEV(Director)inNADAV EYLATH(Director)inSCOTT ARMOUR(Director)PETER MISEK(Director)in

PartnerMike Annunziata· solo GP

Co-investorsat.inc/Framework Venture PartnersHyperplane Venture CapitalMunich Re VenturesProofpoint CapitalTokio Marine Future Fund+1 more

SpacePharmaspacepharma.healthin𝕏Aug 2025 · $187M

SpacePharma develops pharmaceutical research and manufacturing systems designed to operate in microgravity environments aboard satellites and spacecraft.

BiotechDeep TechMedical DevicesSpace Tech

Yossi(Co-Founder & CEO)Martin(Co-Founder, General Manager)

Co-investorsState of Mind VenturesCaffeinated CapitalFounders FundKhosla VenturesLux CapitalShrug Capital

Vital Lyfevital-lyfe.comin𝕏Jun 2025

Vital Lyfe makes a portable watermaker called Access that converts any naturally occurring water, including saltwater, into clean drinking water through a three-step process.

CleantechClimate TechConsumerHardwareHawthorne, US

Andrew Harner(Founder)inJon C.(Founder)inCharles Andrew Harner(Executive Officer, Director)Jonathan Criss(Executive Officer, Director)in

BoardAchal Upadhyaya(Director)in

PartnerMike Annunziata· solo GP

Co-investorsCantos VenturesGeneral CatalystSpaceVCAndreessen HorowitzInterlagos

Vitallyfevitallyfe.com

PartnerMike Annunziata· solo GP

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

a37GroundedHigloMesh OpticalMetal CrossMöbius IndustriesRadiant IndustriesRadiant NuclearVast

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.