/Investor DB

Altimeter Capital — 2026 Investments

22 investments dated 2026 · listed companies and verified rows first · show all

American Terawattamericanterawatt.comin𝕏May 2026

American Terawatt is building a national high-voltage direct current (HVDC) transmission network in the United States designed to deliver gigawatts of power to large industrial loads.

CleantechEnergyHardwareSan Francisco, US

Robert Parker(Founder)inAnton Troynikov(Executive Officer, Director)inArani Bhattacharyay(Executive Officer, Director)

Co-investorsAntlerFulcrum VentureGiant Ventures Global LlpHawk Hill VenturesHOF CapitalScribble Ventures+4 more

Basebase.clubin𝕏Aug 2026 · $1B

Base is a membership-based social club that curates intimate gatherings and experiences for members seeking meaningful conversations and authentic connections beyond traditional networking.

ConsumerMarketplacesSocial

Co-investorsConnetic VenturesGaingelsGeek VenturesTetradAdditionAndreessen Horowitz+9 more

Basetenbaseten.coin𝕏Growth · Jan 2026 · $1.5B

Baseten provides AI inference and infrastructure services that optimize model deployment, serving, and orchestration across the full stack.

AI & Machine LearningCloud ComputingDeveloper ToolsSan Francisco, US

Tuhin Srivastava(Founder)inAmir Haghighat(Founder)inPhil Howes(Founder)inPankaj Gupta(Founder)inDanielle Herzberg(Executive Officer)Dannie Herzberg(President (Go-to-Market & Operations))in

Co-investors01 AdvisorsAI FundAlpha PartnersAspire11Athletic VenturesBattery Ventures+32 more

Bay Area Timesbayareatimes.comin𝕏Feb 2026

Bay Area Times is a daily visual newsletter covering business and technology news, designed for founders, operators, and investors who need quick access to key stories and context.

Media & Entertainment

Bill Kerr(CEO)in

Co-investorsSolar Eco FundAndreessen HorowitzBenchmarkCapitalGDST GlobalICONIQ+2 more

Beepthisisbeep.comAug 2026 · $2B

This page is a blog article offering guidance on how to select an SEO company, including advice on checking credentials, reputation, and references.

Marketing TechMedia & Entertainment

Co-investorsFundersClubSoftBank Group

Contracts AIcontracts.aiAug 2026 · $1B

ContractsAI structures and activates contract data beyond static storage in contract lifecycle management systems, making terms accessible for operational use across enterprise systems.

AI & Machine LearningEnterprise SoftwareLegalTechSaaS

Jenn McCarron(Co-founder & CEO)inPhani Gunturu(Co-founder & CTO)in

Co-investorsOperator CollectiveAndreessen HorowitzBain Capital VenturesBlackstoneGeneral CatalystInterlagos+9 more

Hadrianhadrian.ioinAug 2026 · $1.4B

Hadrian offers an offensive security platform that continuously maps an organization's external attack surface, discovers assets, and uses agentic AI to validate which exposures are actually exploitable.

AI & Machine LearningCybersecurityEnterprise SoftwareSaaSAmsterdam, NL

Rogier Fischer(Co-Founder & CEO)inOlivier Beg(Co-Founder & Chief Hacking Officer)inMaurice Clin(Co-Founder & Head of Business Development)inTijl van Vliet(Co-Founder)in

Co-investorsCapitalGConstruct CapitalForgePoint CapitalLux CapitalPICUS CAPITALSmartFin+9 more

Holdingsholdings.ioin𝕏Aug 2026 · $2B

Holdings offers a connected business banking and accounting platform that links a checking account, bookkeeping, and invoicing so transactions reconcile automatically.

AI & Machine LearningFintechSaaS

Jason Garcia(Founder)in

Co-investorsAlbum VCFrame VCSoftBank Group

Inferactinferact.ai𝕏Jan 2026 · $150M

Inferact develops inference infrastructure for large language models, building on the open-source vLLM engine to make model serving cheaper and faster.

AI & Machine LearningCloud ComputingDeveloper Tools

Roger Wang(Founder)Woosuk Kwon(Founder)inSimon Mo(Founder)inKaichao You(Founder)inJoseph Gonzalez(Founding member)Ion Stoica(Founding member)

Co-investorsAndreessen HorowitzLightspeed Venture PartnersRedpoint VenturesSequoia CapitalStriker Venture PartnersLaude Ventures+1 more

K2k2tx.comJul 2026 · $500M

K2 Therapeutics is a biotech company that identifies innovative drug assets and develops them into medicines using a hub-and-spoke model with cross-regional clinical trials.

BiotechHealthtech

Ying Huang, Ph.D.(Chief Executive Officer, Director)

Co-investorsMPM BioImpactAlpine Space VenturesCapitalGICONIQKleiner PerkinsLightspeed Venture Partners+4 more

Lavrock Ventureslavrockvc.comAug 2026 · $1B

Lavrock Ventures is an early-stage venture capital firm that invests at the intersection of national security and frontier technologies, backing companies in areas such as advanced manufacturing, space, quantum, and kinetic systems.

Deep TechDefense Tech

Steve Smoot(Managing Partner)inDaniel Hanks(Managing Partner)in

BoardJim Hunt(General Partner)inAlex Poulin(Partner)inJuliane Gallina(Partner)inGeorge Hoyem(Venture Partner)in

Co-investorsIronGate Capital AdvisorsAndreessen HorowitzGeneral CatalystInterlagosLightspeed Venture PartnersT. Rowe Price

LiveKitlivekit.comin𝕏Jan 2026 · $100M

LiveKit provides developer infrastructure for building voice, video, and AI agent applications using real-time communication APIs and tools.

AI & Machine LearningCloud ComputingData & InfrastructureDeveloper ToolsSan Jose, US

Russ d'Sa(Founder)inDavid Zhao(Founder)in

Co-investorsDeep AcreFoundersHanabi CapitalIndex VenturesRedpoint VenturesSalesforce Ventures

Mythosmythos.vcMay 2026

A venture capital firm led by operators and AI technologists that invests in founders building defensible technologies and AGI-aware companies positioned for positive civilization-scale impact.

Vishal Maini(Founder & Managing Partner)inJonathan Eng(Partner)inPaul Gu(Partner)in

Co-investorsMarin Digital VenturesCapital GroupCoatue ManagementDragoneer Investment GroupGICGreenoaks+2 more

OpenAIopenai.comin𝕏Growth · Aug 2026 · $2B

OpenAI is an AI research and deployment company focused on developing artificial general intelligence (AGI) with emphasis on safety and beneficial outcomes for humanity.

AI & Machine LearningCloud ComputingEnterprise SoftwareSan Francisco, US

Sam Altman(Founder)inElon Musk(Founder)inGreg Brockman(Founder)inIlya Sutskever(Founder)inWojciech Zaremba(Founder)inJohn Schulman(Founder)

Co-investors7BC Venture CapitalA-Rod CorpA.Capital VenturesA'Z AngelsAdvent InternationalAliya Capital Partners+101 more

Parloaparloa.comin𝕏Mar 2026

Parloa Labs is a research organization advancing the science and practice of artificial intelligence through deployments of voice AI agents.

AI & Machine LearningEnterprise SoftwareSaaSBerlin, DE

Malte Kosub(Founder)inStefan Ostwald(Founder)inMalte Kosub Stefan Ostwald(Founder)Tilman Böhme(Founder)Tilmann Bohme(Founder)

Co-investorsEQT VenturesG SquaredGeneral CatalystMosaic VenturesNewionArtisanal Ventures+8 more

Plaidplaid.comin𝕏Sep 2026

Plaid provides financial infrastructure and APIs that enable developers to build financial technology products and services.

AI & Machine LearningCloud ComputingData & InfrastructureDeveloper ToolsFintechSan Francisco, US

Zach Perret(Founder)inWilliam Hockey(Founder)in

BoardMo Koyfman(Director)Rick Yang(Director)in

Co-investors1435 CapitalAcrew CapitalAdventure FundAmbush CapitalAndreessen HorowitzBoxGroup+35 more

Rolltryroll.comin𝕏Aug 2026 · $2BDefunct

Roll was an Ethereum-based platform enabling creators and influencers to issue branded social tokens redeemable by fans for perks and access.

Crypto & Web3FintechNew York City, US

Sid Kalla(Founder)in

Co-investorsblue 9 capitalFabric VenturesTechstarsRed Beard VenturesSoftBank Group

Sigmasigmacomputing.comin𝕏May 2026 · $80M

Sigma Computing provides a warehouse-native analytics platform that lets business teams build, deploy, and govern AI applications on live data warehouse data without moving it, using spreadsheet-style input tables, embedded agents, and automated actions.

AI & Machine LearningData & InfrastructureEnterprise SoftwareSaaSSan Francisco, US

Robert Woolen(Director)Rob Woollen(Founder)inJason Frantz(Founder)inMike Palmer(CEO)inChristina Liu(CFO)inEran Davidov(SVP Engineering)in

Co-investorsAvenir Growth CapitalK5 GlobalNewView CapitalPrinceville CapitalAltimeter Venture PartnersDatabricks Ventures+5 more

Sigmasigmaco.cominMay 2026 · $80M

SIGMA manufactures water infrastructure products including fittings, restraints, castings, and enclosures for municipal and utility applications.

Advanced ManufacturingCleantechConstruction TechHardwareLogistics & Supply ChainNew Materials

Victor Pais(Founder)Siddharth Bhattacharji(Founder)in

Co-investorsWind Point PartnersAvenir Growth CapitalDatabricks VenturesK5 GlobalNewView CapitalPrinceville Capital+4 more

Thrivethrive.healthinAug 2026 · $2B

Thrive Health provides a personal health information management application that allows users to gather, manage, and share their health data with authorized healthcare providers.

Digital HealthHealthtechWest Vancouver, CA

Co-investorsRelentless Pursuit PartnersSoftBank Group

XBOWxbow.comin𝕏Mar 2026 · $120M

XBOW is a global, remote-first technology company.

AI & Machine LearningCybersecuritySaaSSector AgnosticSeattle, US

Oegerikus de Moor(Executive Officer, Director)inNico Waisman(Founder)Oege de Moor(Founder)

BoardKonstantine Buhler(Director)inApoorv Agrawal(Director)Ron Gabrisko(Director)

Co-investorsAlkeon InnovationLiberty GrowthNorthzoneNVIDIAS VenturesSequoia Capital+1 more

Xceptorxceptor.cominMar 2026 · $120M

Xceptor provides an enterprise automation platform for financial institutions to manage reconciliation, post-trade processes, and data workflows.

AI & Machine LearningEnterprise SoftwareFintechSaaS

Dan Reid(CTO and Co-founder)inMireille Dyrberg(Chief Executive Officer)in

Co-investorsAstorgAlkeon CapitalNorthzoneSequoia CapitalSofina

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.