/Investor DB

Helios Capital — Full Portfolio

29 tracked investments · listed companies and verified rows first

SpaceXspacex.comNASDAQ: SPCX

Revolutionizing space technology to make life multi-planetary

Hawthorne, US

Elon Musk(Founder)inBret Johnsen(Executive Officer)inGwynne Shotwell(Executive Officer, Director)Tom Mueller(Founder)

BoardAntonio Gracias(Director)inSteve Jurvetson(Director)in

PartnerRyan Kriser· solo GP

Co-investors1/1 Capital137 Ventures1802 Ventures2080 Ventures3Spoke Capital4DX Ventures+205 more

Allocationsallocations.comin𝕏

Allocations provides software and administration services for private equity fund formation and management, serving fund managers and investor syndicates seeking standardized SPV creation and operational support.

Enterprise SoftwareFintechSaaS

Kingsley Advani(Founder & CEO)in

PartnerRyan Kriser· solo GP

Co-investorsIrishAngelsSmart Partnership CapitalChainFund CapitalFlex Capital Partners

Argo Spaceargospace.comin𝕏

Argospace provides launch and transportation services for spacecraft and satellites beyond low Earth orbit (LEO), including cislunar and interplanetary missions.

Deep TechHardwareSpace TechEl Segundo, US

Ryan Carlisle(Founder)inKirby Carlisle(Founder)inRobert Carlisle(Founder)in

PartnerRyan Kriser· solo GP

Co-investorsAIR CapitalCreative Destruction Lab (CDL)Crosslink CapitalEarthrise VenturesTFX CapitalType One Ventures+2 more

Astraastra.comin

Astra provides dedicated orbital launch services and manufactures electric propulsion systems for satellites.

Defense TechHardwareSpace TechAlameda, US

Chris Kemp(Founder)inDr. Adam London(Founder)Benjamin Lyon(Executive Officer)inMartin Attiq(Executive Officer)inKelyn Brannon(Executive Officer)inLisa Nelson(Director)

PartnerRyan Kriser· solo GP

Co-investorsACME CapitalBay Bridge Ventures ClimateCanaan PartnersChenel Capital PartnersEvolution VC PartnersJude Gomila+10 more

Avttxavttx.com

AVTTX is a clinical-stage company developing gene therapy treatments for retinal and ophthalmologic diseases.

BiotechDigital HealthHealthtechMedical Devices

George Montgomery(Executive Chairman)

PartnerRyan Kriser· solo GP

Co-investorsEcoR1 CapitalEvolution VC PartnersPlum Alley InvestmentsSand Hill AngelsTransform InvestmentsSocii Capital+1 more

Axiom Spaceaxiomspace.comin𝕏

Axiom Space develops commercial space stations and provides access to low-Earth orbit microgravity environments for research, manufacturing, and innovation by governments, researchers, and organizations.

Defense TechEdTechHardwareSpace Tech

Dr. Kam Ghaffarian(Founder)inMichael Suffredini(Founder)inKam Ghaffarian(Founder)

PartnerRyan Kriser· solo GP

Co-investors1802 Ventures2am VCAidenlair CapitalAlumni VenturesAurum Venture PartnersBascom Ventures+43 more

Cognitive Spacecognitivespace.comin𝕏

Cognitive Space develops AI-driven automation software for satellite operations, enabling constellation operators to scale while meeting operational requirements.

AI & Machine LearningDefense TechSaaSSpace TechHouston, US

Marc Bell(Co-Founder and CEO)Guy de Carufel(Founder)inDax Garner(CTO)inJeff Edwards(VP of Engineering)inHanna Steplewska(Executive Officer, Director)Jennifer Roberts(Director)in

PartnerRyan Kriser· solo GP

Co-investorsArgon VenturesCapital InnovatorsCreative Destruction Lab (CDL)Dolby Family VenturesDraper AssociatesGlasswing Ventures+9 more

Cosmic Shieldingcosmicshielding.comApr 2021

Cosmic Shielding develops radiation-shielding technology that adapts commercial off-the-shelf (COTS) electronics — including AI-capable GPUs, sensors, and cameras — for reliable operation in space.

Deep TechEnergyHardwareSpace TechAtlanta, US

Yanni Barghouty(Co-Founder & CEO)inLembit Sihver(Co-Founder & CTO)inMichael Ghadaksaz(Chief Product Officer)

PartnerRyan Kriser· solo GP

Co-investorsActuate VenturesOutsidersStarbridge Venture Capital LlcType One VenturesWorldQuant VenturesSpaceFund

EnergyX: Lithium Extraction Companyenergyx.comin𝕏

EnergyX supplies battery-grade lithium hydroxide monohydrate for lithium-ion batteries used in electric vehicles and energy storage systems.

CleantechEnergyNew MaterialsAustin, US

Teague Egan(Founder)in

PartnerRyan Kriser· solo GP

Co-investorsJapan AngelsK20 FundE8 AngelsEni NextRasmal Ventures

Graviticsgravitics.spacein𝕏Nov 2022

Gravitics builds space infrastructure including Orbital Carriers for on-demand payload deployment, commercial space station modules, and cargo/logistics systems based on a shared 4-meter diameter form factor.

Advanced ManufacturingDeep TechDefense TechSpace TechErie, US

Michael DeRosa(Co-Founder & Chief Marketing Officer)inColin Doughan(Founder)inGary Hudson(Founder)inSundeep Kumar(Executive Officer, Director)inJim Royston(CTO)inPhilip Wong(CFO)in

PartnerRyan Kriser· solo GP

Co-investorsAlpha FundsDraper AssociatesFJ LabsSprint VcThe Venture CollectiveType One Ventures+1 more

Kelekonakelekona.com

Kelekona is developing a large electric aircraft designed to carry 40 passengers plus a pilot or a 10,000 lb cargo payload, using a lifting-body design built from 3D-printed composite and aluminum.

Deep TechDefense TechMobility & TransportationNew York, US

PartnerRyan Kriser· solo GP

Luminousluminous.com

PartnerRyan Kriser· solo GP

Mojo Visionmojo.visionin𝕏

Mojo Vision develops micro-LED technology, positioning it as a platform for AI infrastructure and next-generation displays.

Deep TechHardwareSemiconductors

Nikhil Balram(Chief Executive Officer)inMike Wiemer(Chief Technology Officer)inG. Aaron James(General Counsel)inDrew Perkins(Founder)Michael Deering(Founder)Michael Wiemer(Founder)

PartnerRyan Kriser· solo GP

Co-investorsARC Angel FundArgonautic VenturesBold Capital PartnersDisney AcceleratorDolby Family VenturesFlucas Ventures+19 more

Oncosenxoncosenx.cominJul 2021

OncoSenX is a late-stage pre-clinical cancer therapeutics company developing treatments that target solid tumors based on transcriptional activity.

BiotechDeep TechHealthtechSeattle, US

Matt Scholz(Executive Officer, Director)John Lewis(Executive Officer, Director)inGary Hudson(Director)in

PartnerRyan Kriser· solo GP

Co-investorsMethuselah FoundationChainFund CapitalInvesco

Orbit Faborbitfab.comin𝕏May 2020

Orbit Fab builds the in-space propellant supply chain, offering commercial spacecraft refueling services and standardized refueling interfaces to enable reusable spacecraft and a sustainable space economy.

HardwareSpace TechSanta Clara, US

Daniel Faber(Co-Founder)inJeremy Schiel(Executive Officer, Director)inPeter Shaper(CEO)inChingti Yang(Executive Officer)

PartnerRyan Kriser· solo GP

Co-investors2045 VenturesACADEMY INVESTORAIN VenturesAsymmetry VenturesAurum Venture PartnersCapital Factory+20 more

Proovproovtest.comAug 2017 · $14M

Proov offers at-home hormone and fertility testing products, including systems to identify the fertile window, confirm ovulation, and screen for leading causes of infertility, paired with an app providing hormone insights and personalized recommendations.

Digital HealthFemTechHealthtech

Co-investorsBoulder VenturesGingerbread CapitalKaya VenturesLightship CapitalPortfoliaService Provider Capital+5 more

Proovproov.aiAug 2017 · $14M

Proov.ai offers an AI agent for sports betting operators that delivers personalized, real-time in-play betting suggestions and offers based on player behavior, performance data, and betting history.

AI & Machine LearningSaaSSports Tech

Co-investorsCommunitas Capital Partnersfresh.fundCerca PartnersGingerbread CapitalLightship CapitalMangrove Capital Partners+2 more

Radian Aerospaceradianaerospace.comin𝕏Feb 2016 · $27.5M

Radian Aerospace is developing fully reusable spaceflight vehicles, including Radian One, a single-stage-to-orbit mission platform for routine access to Low Earth Orbit, and R3V, a reusable reentry capsule for hypersonic testing and rocket cargo.

Deep TechHardwareSpace TechRenton, US

Curtis Gifford(Chief Financial Officer, Chief Operating Officer, & Co-Founder)inRichard Humphrey(Chief Executive Officer & Co-Founder)inLivingston Holder(Chief Technology Officer & Co-Founder)inJeff Feige(Founder)inLivingston L. Holder, Jr.(Founder)

PartnerRyan Kriser· solo GP

Co-investorsAdvection Growth CapitalAlumni VenturesBalerion Space VenturesEvolution VC PartnersFine Structures VenturesHCVC+10 more

Relativity Spacerelativityspace.comin𝕏

Relativity Space develops Terran R, a reusable medium-to-heavy-lift rocket designed for efficiency and scalability, serving government entities, telecommunications companies, and commercial customers for space access missions.

Advanced ManufacturingAI & Machine LearningDeep TechDefense TechHardwareSpace TechLos Angeles, US

Tim Ellis(Founder)inJordan Noone(Founder)inEric Schmidt(CEO)in

PartnerRyan Kriser· solo GP

Co-investorsAidenlair CapitalARA NEA Ventures (Brand: Dmz.Xyz)Aurum Venture PartnersBalerion Space VenturesBaruch Future VenturesBold Capital Partners+59 more

Scoutscout.spacein𝕏

Scout Space develops technologies for real-time sensing, data processing, and autonomous systems to protect space infrastructure.

AI & Machine LearningDeep TechDefense TechRoboticsSpace TechAlexandria, US

JosiahinCourtneyin

PartnerRyan Kriser· solo GP

Co-investors100Km Ventures LlcCapital InnovatorsDecisive PointFusionTechstarsWashington Harbour Partners

Space Forgespaceforge.comin

Space Forge develops high-quality substrates for semiconductor applications, using microgravity manufacturing in space to reduce material defects and produce higher-purity, higher-performance materials.

New MaterialsSemiconductorsSpace TechCardiff, GB

Joshua Western(Founder)in

PartnerRyan Kriser· solo GP

Co-investorsE2MC VenturesHelium-3 VenturesStarbridge Venture Capital LlcTrousdale VenturesType One VenturesUnruly Capital+7 more

Spacechannelspacechannel.com

Space Channel is a web platform that aggregates space-related data and media, including live ISS telemetry, launch tracking, satellite and orbital traffic monitoring, space weather, lunar and planetary tracking, NASA image archives, and UFO/UAP news.

ConsumerMedia & EntertainmentSpace Tech

PartnerRyan Kriser· solo GP

Spacefundspacefund.com

SpaceFund is an early-stage venture capital fund investing in space-industry startups, focusing on space transportation, critical components, supply chains, and commercial space infrastructure while avoiding traditional aerospace.

Deep TechSpace Tech

Rick Tumlinson(Founder & CEO)inJohn Bohlmann(Founding GP)inLuke Moloney(Founding GP)Jaime Velasco(CFO)in

PartnerRyan Kriser· solo GP

TransAstra Corporationtransastra.comSeed

TransAstra develops propulsion systems and telescope technology for space operations.

Advanced ManufacturingSpace TechLos Angeles, US

Joel Sercel(Founder)in

Co-investorsJude GomilaSoma CapitalValkyrieY CombinatorAcequia Capital (AceCap)Cathexis Ventures+10 more

TransAstra Corporationtransastracorp.com

PartnerRyan Kriser· solo GP

Co-investorsCathexis VenturesSica VenturesZillionize

Type1Venturestype1ventures.com

Type1 Ventures is a venture capital firm.

AI & Machine LearningDeep TechSpace Tech

Tarek Waked(Co-Founder & Managing Partner)Abdo John Hajj(Co-Founder & Managing Partner)

PartnerRyan Kriser· solo GP

Co-investorsBeyond Earth Ventures

Venus Aerospace Hypersonic Transportationvenusaero.comin𝕏

Venus Aerospace develops rotating detonation rocket engine (RDRE) technology and a detonation ramjet system for space, defense, and commercial high-speed and hypersonic flight.

Deep TechDefense TechSector AgnosticSpace TechTexas, US

Sassie Duggleby(CEO & Co-founder)inAndrew Duggleby(CTO & Co-founder)inSarah "Sassie" Duggleby(Founder)inTom Barron(Chief Operating Officer)Nick Cardwell(Chief Product Officer)inSheila Menz(General Counsel)in

PartnerRyan Kriser· solo GP

Co-investorsAlumni VenturesAmerica's Frontier FundCantos VenturesCubit CapitalDraper AssociatesHalogen Ventures Management Company Llc+14 more

Volumetricvolumetricbio.com𝕏acquired by 3D Systems

Volumetric Biotechnologies, acquired by 3D Systems in 2021, develops bioprinting materials and vascularized human tissue constructs.

BiotechDeep TechHealthtechMedical DevicesHouston, US

Jordan Miller(Founder)inBagrat Grigoryan(Founder)in

PartnerRyan Kriser· solo GP

Co-investorsGoAhead VenturesHarmonix FundJoyance PartnersJude GomilaMethuselah FoundationSand Hill Angels+21 more

Voyagerspaceholdingsvoyagerspaceholdings.com

PartnerRyan Kriser· solo GP

Co-investorsSpaceFund

Xplorexplore.comin

Xplore provides space infrastructure and satellite operations services to commercial, government, and nonprofit organizations.

Cloud ComputingData & InfrastructureSaaSSpace Tech

Jeff Rich(Chief Executive Officer)Dave Claussen(Chief Technology Officer)David Floyd(Engineering Director)inLisa Rich(Chief Operating Officer)Henry Lin(Chief Financial Officer)in

PartnerRyan Kriser· solo GP

Co-investorsAlumni VenturesBatshit Crazy VenturesBrightstone Venture CapitalIndustrious VenturesSand Hill AngelsStarbridge Venture Capital Llc+5 more

Other

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

Venus Aerospace

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.