/Investor DB

Centennial Investors — Full Portfolio

30 tracked investments · listed companies and verified rows first

AdSwappertheadswapper.com

AdSwapper operates two brands: one helps publishers and website owners monetize traffic through premium lead generation and direct advertiser connections; the other helps businesses acquire intent-focused leads in home services and auto insurance verticals.

AdTechB2B MarketplacesMarketing Tech

Amos Angelovici(Founder)in

Co-investorsMissouri Technology Corporation

Buck Surgicalbucksurgical.cominApr 2025

Buck Surgical develops surgical technologies aimed at improving outcomes for complex procedures and expanding patient access to reconstructive and limb-preserving treatments.

HardwareHealthtechMedical DevicesSt. Louis, US

Donald W. Buck II(Founder)inDonald Buck(Executive Officer, Director)

Co-investorsBioGenerator VenturesMissouri Technology Corporation

CRYOCRATE LLCcryocrate.com

CryoCrate develops cryopreservation solutions for cells and tissues in biomedical research and clinical applications, particularly for cell and tissue types that cannot be preserved or lose viability using existing storage methods.

BiotechDeep TechDigital HealthMedical DevicesNew MaterialsColumbia, US

Dr. Xu Han(President and Chief Technology Officer)

Elemental Enzymeselementalenzymes.comin𝕏Jun 2023

Elemental Enzymes develops peptide and biochemical solutions to protect plants from disease and stress.

AgTechBiotechCircular EconomyNew Materials

Brian Thompson(Executive Officer)

Co-investorsPaine Schwartz Partners

Endevica Bioendevicabio.com

Endevica (Kalohexis) is a clinical-stage biotechnology company developing peptidomimetic melanocortin drug candidates.

BiotechMedical Devices

Equinosisequinosis.com

Equinosis builds a wearable, sensor-based diagnostic system that objectively detects and quantifies lameness in horses for equine veterinarians and veterinary schools.

HardwareHealthtechMedical Devices

Kevin G. Keegan(Founder)

Healiumtryhealium.comin𝕏

Healium is an immersive wellness platform that pairs VR with real-time biometric data such as EEG brainwaves and heart rate to give clinicians measurable, drug-free tools for managing patients' stress, anxiety, and pain.

Digital HealthHealthtechMental HealthWellness & Fitness

Sarah Hill(Founder)inDr. Jeff Tarrant(Co-founder)

Co-investorsCitrine AngelsGaingelsKCRise FundMissouri Technology CorporationNueterra CapitalImpact Venture Capital

Immunophotonics, Inc.immunophotonics.comin

Immunophotonics is a clinical-stage biotech company developing novel treatments for solid-tumor cancers and infectious diseases by combining tumor ablation with systemic cancer immunotherapy.

BiotechDeep TechDigital HealthMedical DevicesSt. Louis, US

Dr. Hode(Co-Founder & Senior Fellow)Mr. Alleruzzo(Co-Founder & Director)Dr. Chen(Co-Founder)Dr. Robert Nordquist(Co-Founder)Luciano Alleruzzo(Director, Promoter)Wei Chen(Director, Promoter)

Co-investorsArgonautic VenturesBioGenerator VenturesiSelect FundMissouri Technology CorporationCultivation Capital

Impetus Agricultureimpetusag.comDec 2020

Impetus Ag develops early- to late-stage agricultural technologies, with a focus on Bt discovery and development and insecticidal proteins for insect and pest control in crops.

AgTechBiotechDeep TechSt. Louis, US

Jeffrey Staub(Co-founder & former Chief Scientist)inMartha Schlicher(CEO, Board of Directors)inBrian McNulty(Dr. Brian McNulty became CTO on 1/1/2021)Alexander Hromockyj(CTO)inThomas Malvar(COO)inMartha Schlicher, Ph.D., MBA(CEO, Board of Directors)

Co-investorsBioGenerator VenturesMissouri Technology CorporationRadicle GrowthSwan Venture FundCultivation CapitalTet Ventures

Intramotevintramotev.cominAug 2022

Intramotev develops battery-electric retrofit technology for rail transportation, converting traditional railcars into independently-moving, self-propelled vehicles that reduce operational costs and emissions.

Advanced ManufacturingCleantechHardwareMobility & TransportationSt. Louis, US

Timothy Luchini(Executive Officer, Director, Promoter)inAlex Peiffer(Founder)inCorey Vasel(Executive Officer, Promoter)

BoardPalmer Anna(Director)Aubrie Pagano(Director)in

Co-investorsAdvantage Capital PartnersAera VCAlpaca VCAlumni VenturesCantos VenturesCollide Capital+7 more

Kalohexiskalohexis.com

Kalohexis is a biopharmaceutical company developing treatments that target the melanocortin system, the body's regulator of metabolic homeostasis, to address metabolic disorders beginning with obesity and cancer cachexia.

BiotechHealthtechLongevity

Kremenak NanoTechkremenaknano.comin

Kremenak NanoTech (KNT) is a deep tech startup that develops patented and patent-pending nanoengineered material platform technologies and products, including Shredder, which uses material science to prevent microbial spoilage in commercial beverage production.

Deep TechFoodTechHardwareNew MaterialsColumbia, US

Jesse Kremenak(Founder, CEO & CTO)inAJ Davis(COO)in

Co-investorsMissouri Technology Corporation

LendingStandardlendingstandard.comin

LendingStandard offers a cloud platform for commercial lenders and banks to originate, underwrite, manage, and close loans, with tools for document collection, automated credit memos, pipeline and covenant tracking, and AI-based document classification and data extraction.

AI & Machine LearningEnterprise SoftwareFintechPropTechSaaSKansas City, US

Graham Long(Head of Product)inAndrew Kallenbach(Executive Officer, Director)

BoardKeith Molzer(Director)in

Co-investorsFlyover CapitalNaples Technology VenturesSixThirty Ventures

Missouriinnovationmissouriinnovation.com

Missouri Innovation Center (MIC) is a company-building platform that provides wet labs, coworking and office space, early-stage capital, operating support, and access to the University of Missouri (Mizzou) network for science and technology founders.

AgTechBiotechDeep TechColumbia, US

Mobility Designedmobilitydesigned.comDec 2018

Mobility Designed (M+D) develops mobility assistance products such as ergonomic crutches and combination stability aids for people with mobility needs.

HardwareMedical DevicesMobility & TransportationKansas City, US

Liliana Younger(Executive Officer, Director)Max Younger(Director)

Plastomics, Inc.plastomics.comin

Plastomics develops trait delivery technology for agriculture using cell biology, plant tissue culture, transformation, and molecular biology methods.

AgTechBiotechSt. Louis, US

Jeffrey Staub(Executive Officer, Director)inElizabeth Gallegos(Executive Officer)in

BoardMartha Schlicher(Executive Officer, Director)inBrian Clevinger(Director)Charles Bolten(Director)Dave Duncan(Director)

Co-investorsArgonautic VenturesBioGenerator VenturesFulcrum Global CapitaliSelect FundMissouri Technology CorporationRevolution+2 more

Ponchiponchi.aiApr 2026

Columbia, US

Dale Austen Prouty(Executive Officer, Director)Stephen Edward Guthrie(Executive Officer, Director)Deepak Kumar Singh(Executive Officer, Director)

Co-investorsMissouri Technology Corporation

ResistanceBioresistance.bioinSeed · Jan 2024Defunct

ResistanceBio develops treatments to address drug resistance in cancer patients.

BiotechHealthtechSan Francisco, US

Nicholas Goldner(CEO)inChristopher Bulow(Founder)inKYLE LAPHAM(Executive Officer, Director)

BoardOMRI AMIRAV-DRORY(Director)in

Co-investorsAlumni VenturesFifty YearsY CombinatorAsymmetry VenturesBrightstone Venture CapitalCantos Ventures+11 more

ThermaVant Technologiesthermavant.comin

ThermAvant Technologies designs and manufactures oscillating heat pipe (OHP) thermal management solutions and thermal straps for aero-defense and high-technology customers, including government and commercial spaceflight applications.

Defense TechHardwareNew MaterialsSpace TechUSA, US

Dr. Bill MaDr. Bin WuJoe Boswellin

Co-investorsMissouri Technology Corporation

Zelusenterprisezelusenterprise.com

Zelus Enterprise is a web-based environmental risk management platform that monitors conditions such as heat (WBGT), lightning, and weather alerts across single or multi-site operations.

Climate TechEnterprise SoftwareSaaS

Other

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

BiographyBiography HealthImpetus AgLending StandardMaxFiMaximumfidelitysurgicalsimulationsMIC Accelerator FundMobility DesignPapertrlZelus

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.