/Investor DB

Welsh, Carson, Anderson & Stowe — Full Portfolio

15 tracked investments · listed companies and verified rows first

Sonendosonendo.comOTC: SONXNov 2018SEC filingmedium confidence

Sonendo is a medical technology company that develops and manufactures the GentleWave System, a technology platform for treating tooth decay by cleaning and disinfecting the interior spaces of teeth without removing tooth structure.

HardwareHealthtechMedical DevicesLaguna Hills, US

Bjarne Bergheim(Executive Officer, Director)inJohn McGaugh(Executive Officer)inJohn Bostjancic(Executive Officer)Hugh Neuharth(Executive Officer)Roy T. Chen(Chief Talent Officer)Chris Guo(Interim Chief Financial Officer)in

Board seatDavid Caluori· per SEC Form D · $25M raise · filed Nov 2018

Co-investorsEssex Woodlands Healthcare PartnersFjord VenturesGeneral AtlanticMeritech Capital PartnersNeomed ManagementOrbiMed+1 more

Innovageinnovage.comin𝕏NASDAQ: INNV

InnovAge operates a Program of All-Inclusive Care for the Elderly (PACE), providing integrated healthcare and social services to seniors.

Digital HealthHealthtechLongevity

Patrick Blair(Chief Executive Officer)inBenjamin C. Adams(Chief Financial Officer)Nicole D'Amato(Chief Legal Officer and Corporate Secretary)inMeredith Delk(Chief Administrative Officer)in

Co-investorsClaritas CapitalWCAS

Paymentuspaymentus.comin𝕏NYSE: PAY

Paymentus provides a billing and payment solution platform for digital payments, supporting customers in adopting cost-efficient payment methods and channels through the company's Client Adoption Success Team (CAST).

Enterprise SoftwareFintechSaaS

Dushyant Sharma(Founder and CEO)in

Co-investorsAccel-KKR

Kinicitikiniciti.cominNov 2021✓ verified

Kiniciti is a platform company that operates cell and gene therapy-focused life science businesses, including Cellistic for iPSC-based manufacturing technologies and Ncardia for human iPSC products and drug discovery services.

BiotechDeep TechHealthtechMedical Devices

Geoffrey Glass(Founding CEO)in

Co-investorsBIOSPRING PARTNERSWCAS

Oak Street Healthoakstreethealth.comin𝕏Apr 2018SEC filingmedium confidence

Oak Street Health operates a network of primary care centers focused on preventive and comprehensive care for older adults, offering personalized wellness plans, integrated health services, and care coordination with specialists.

Digital HealthHealthtechLongevityChicago, US

Griffin Myers(Director)inMichael Pykosz(Executive Officer, Director)Geoffrey Price(Director)

BoardKevin Roche(Director)Edward Bergmark(Director)

Board seatDavid Caluori· per SEC Form D · $43.9M raise · filed Oct 2018

Co-investorsTau VenturesGeneral Atlantic

Absorb Softwareabsorbai.comin𝕏

Absorb Software provides a learning management system platform for organizations to manage training and education programs.

AI & Machine LearningEdTechEnterprise SoftwareSaaS

Co-investorsSilversmith Capital PartnersWCAS

Abzenaabzena.comin𝕏

Abzena is an integrated CDMO and CRO providing end-to-end development and cGMP manufacturing services for complex biologics and bioconjugates, including ADCs, AOCs, bispecifics, and HPAPIs.

Advanced ManufacturingBiotechHealthtechMedical DevicesCambridge, US

William John Edward Burt(Executive Officer, Director)Nigel Pitchford(Director)Leigh Pierce(Executive Officer)Kenneth Cunningham(Director)Julian Smith(Executive Officer, Director)Anthony Brampton(Director)

Co-investorsBeringeaBIOSPRING PARTNERSWCAS

EnableCompenablecomp.comin

EnableComp provides revenue cycle management solutions to hospitals, using adaptive intelligence to accelerate claims recovery and improve financial performance.

AI & Machine LearningEnterprise SoftwareHealthtechInsurTechSaaS

Co-investorsNaviMed CapitalWCASPrimus Capital

Honest Healthforhims.co.ukin𝕏Feb 2026 · $140M

Hims offers personalised healthcare through online consultations with licensed medical providers, creating individual treatment plans and delivering prescription and generic treatments direct to customers.

Digital HealthDirect to ConsumerHealthtech

Co-investorsFounders FactoryFounders Factory NYDurable Capital PartnersK2 HealthVenturesOak HC/FT

ImageTrendimagetrend.comin𝕏Feb 2023

ImageTrend Elite provides fire investigation software for fire departments and marshals to document post-incident investigations, manage evidence and witness statements, and generate NFPA 921-compliant reports.

AI & Machine LearningEnterprise SoftwareGovTech

Co-investorsGolub GrowthWCAS

Valeritasvaleritas.cominJun 2014

An Italian-language affiliate guide that reviews and ranks non-AAMS online casinos (foreign-licensed gambling sites) accessible to Italian players, comparing bonuses, game catalogs, payment methods, and licensing.

ConsumerGamingMedia & EntertainmentBridgewater, US

William Duke(Executive Officer)inKristine Peterson(Executive Officer, Director)

BoardDaniel Pelak(Director)Sean Traynor(Director)Ittai Harel(Director)inPaul Queally(Director)

Co-investorsAgate Medical Investments LPHLM Investment PartnersKaiser Permanente VenturesAbingworthMPM BioImpactPitango

Valtruisvaltruis.cominAug 2021

Valtruis is a healthcare-focused investment firm that invests in and helps build companies changing how healthcare is accessed, delivered, experienced, and paid for.

Digital HealthHealthtech

Co-investorsWCAS

Wellvanawellvana.com

Wellvana is a value-based care enablement company that operates ACOs across MSSP tracks and Medicare Advantage contracts and provides onboarding, clinical support, and the Clarity analytics platform to turn clinical, financial, and social data into care insights.

Data & InfrastructureDigital HealthHealthtechNashville, US

SCOTT LENZ(Executive Officer)IAN KYLE WAILES(Executive Officer, Director)Adam Holland(Executive Officer)in

BoardCharlie Martin(Director)Devin Carty(Director)KAREY WITTY(Director)

Co-investorsCorewell Health VenturesFirst Trust Capital PartnersHeritage GroupMartin VenturesOptum VenturesWhistler Capital Partners

Other

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

OneOncology Parent HoldingsRevel Systems

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.