/Investor DB

Berkshire — Full Portfolio

19 tracked investments · listed companies and verified rows first

Thrivethrivenextgen.comin𝕏✓ verified

Thrive is a company whose leadership actively collaborates with the American Heart Association to advance cardiovascular health research, prevention, and education.

CybersecurityEnterprise SoftwareHealthtechImpact & Social GoodSaaSConcord, US

Bill McLaughlin(CEO)inMatt Kosovsky(Chief Financial Officer)inJoe Mercurio(Chief Revenue Officer)inScott Steele(Chief Operating Officer)inMichael Gray(Chief Technology Officer)inKristina O'Connell(Chief Marketing Officer)in

Co-investorsCourt Square Capital Partners

Triumphtriumphgroup.com✓ verified

Triumph Group provides engineered systems and proprietary components for aerospace and defense companies, serving both OEM and aftermarket applications.

Advanced ManufacturingDefense TechHardwareRadnor, US

Jorge L. Valladares III(Chief Executive Officer)

Co-investorsWarburg PincusAdams Street PartnersDrive by DraftKings

Accelaaccela.comSep 2023

Accela provides cloud-based software and IT management solutions for government agencies and communities to deliver digital services, streamline operations, and improve resident engagement.

AI & Machine LearningCloud ComputingGovTechSaaSSan Ramon, US

Colin Samuels(Executive Officer)Jeffrey Tung(Executive Officer)Maury Blackman(Executive Officer, Director)John Alves(Executive Officer)

BoardDerek Chau(Director)Tyler Wick(Director)

Co-investorsFrancisco PartnersABRY PartnersBuilding VenturesGolub GrowthKarlani CapitalLerer Hippeau

Consolidated Precision Productscppcorp.comin

CPP produces high-integrity structural investment castings, including titanium, steel, aluminum, and nickel-based superalloy components such as engine housings, mounts, frames, and casings.

Advanced ManufacturingDefense TechNew MaterialsCleveland, US

Co-investorsArlington Capital PartnersBlue PointIndustrial Growth PartnersWarburg Pincus

Gardenuitygardenuity.cominOct 2023 · $5.5M

Gardenuity sells container gardens, desktop terrariums, and plant subscriptions matched to a customer's location and weather, along with soil and nutrient blends.

ConsumerDirect to ConsumerE-commerceDallas, US

Donna Letier(Director, Executive Officer)inAndrew Scott Letier(Director, Executive Officer)Julie Eggers(Director, Executive Officer)

BoardAlan Shor(Director)Michael Mann(Director)inSharron Hunt(Director)

Co-investorsNorth Texas Angel NetworkAnchor CapitalRevTech Ventures

Miellemielleorganics.comApr 2021

This is a product page from Mielle Organics, a personal care company that makes hair care products with organic and natural ingredients.

ConsumerDirect to ConsumerE-commerceWellness & Fitness

Monique Rodriguez(Founder)in

Co-investorsNew Voices

Mosaimosai.comin

Mosai provides a care coordination platform for U.S. home healthcare providers that integrates clinical workflows, patient data, and referral management.

AI & Machine LearningData & InfrastructureDigital HealthEnterprise SoftwareHealthtechSaaSNashville, US

Elliott Wood(CEO)inDr. Andrei Javier(Vice President of Strategy and Transformation)

Nubanknubank.com.brin𝕏Jun 2021

Nubank is a digital bank offering checking accounts, credit cards, loans, and savings tools without annual fees or abusive charges.

ConsumerFintechSão Paulo, BR

David Vélez(Founder & CEO)inCristina Junqueira(Co-founder)in

Co-investorsBase PartnersBase10 PartnersFJ LabsFounders FundHundreds CapitalKaszek Ventures+15 more

Triumvirate Environmentaltriumvirate.comin𝕏Feb 2025

Triumvirate Environmental provides waste reduction, compliance, and environmental health & safety solutions to companies in life sciences, advanced manufacturing, healthcare, and education sectors across North America.

Circular EconomyCleantechClimate TechEnterprise SoftwareHealthtech

John McQuillan(Founder)in

United Flow Technologiesuft.comin𝕏Dec 2025

United Flow Technologies (UFT) is a platform, established in 2021, that acquires and partners with companies serving the municipal and industrial water and wastewater market across the United States, offering process, pump, automation, control, and related equipment solutions.

Advanced ManufacturingCleantechClimate Tech

Co-investorsH.I.G. Capital

Upstackupstack.comin𝕏Apr 2021 · $50M

UPSTACK is a technology advisory firm that helps enterprise customers identify, evaluate, and source AI and machine learning solutions while managing vendor relationships and contracts.

AI & Machine LearningCloud ComputingDeveloper ToolsEnterprise SoftwareSaaSSales TechNew York, US

Christopher Trapp(Founder & CEO)in

Co-investorsAdams Street PartnersMontage Ventures

Vaporaskolo.comJan 2020 · $90MDefunct

Vapor builds server-side software using Swift.

ConsumerSocialNew York City, US

Yin Wu(Founder)inXuwen Cao(Founder)inJohn Hiesey(Founder)Shazad Mohamed(Founder)inJeffrey E. Holman(Executive Officer, Director)Harlan Press(Executive Officer)

Co-investorsY Combinator500 GlobalAndreessen HorowitzHighland Capital PartnersPegasus Tech VenturesUlu Ventures+1 more

Vapor IOvapor.ioin𝕏Jan 2020 · $90M

Vapor IO deploys software-driven autonomous networks and micromodular data centers at network edges, leasing infrastructure and edge-to-edge connectivity capabilities to telecommunications providers, cloud operators, and content delivery networks.

Cloud ComputingData & InfrastructureIoTAustin, US

Cole Crawford(Founder & CEO)inAndrew CenciniinSteve White(CRO)in

Co-investorsGoldman SachsSINEWAVE VENTURES

Other

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

Electric Power EngineersMosaicRJW Logistics GroupTriumph GroupVital Care

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.