Fundraising Fox

Altimeter Capital

Crossover fundActively deployingoperating company · company profile

Menlo Park · Pre-Seed–Late Stage · 8 people tracked

Also known as Altimeter · ALTIMETER CAPITAL MANAGEMENT, LP

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Investment thesis

Altimeter is a technology-focused investment firm founded by a founder to serve founders. Its stated mission is to help visionary entrepreneurs build iconic companies, disrupt markets, and improve lives across all stages of growth. The firm manages a range of funds investing in both public and private markets, positioning itself as a long-term expert partner to companies, particularly as they prepare to enter and operate in the public markets.

Source: firm website, verified Aug 25, 2026.

Founder fit — who Brad backs

A strong fit is a growth-stage technology company with consumption-based economics, measurable retention, and a management team that can defend its cost structure line by line. He is a direct counterparty who will tell you what he thinks — publicly, if he believes it matters enough.

Strong signalsData and AI infrastructureLate private and crossover stagePublic-comparable financial disciplineFrontier AI at scaleFounders who welcome hard feedback
Likely mismatchesSeed and pre-seedHeadcount-led growth plansNon-technology sectors

Seed and pre-seed rounds, headcount-led growth plans, and non-technology sectors. These are inferences from Altimeter's stage focus and his published positions, not stated exclusions.

How to pitch

Bring public-market-grade numbers: gross margin, net revenue retention, burn multiple, and the path to free cash flow with dates. Show output per employee and be ready to defend your hiring plan against it — that is the argument he is most known for. If AI capital intensity is part of your model, bring the depreciation and utilisation assumptions, because that is the level at which he engages on BG2.

As of August 2026 his attention is split between Altimeter's AI and data infrastructure positions and Invest America, whose accounts launched on 4 July 2026 — he has predicted more than $100 billion in private commitments within twelve months. He continues to co-host BG2 with Bill Gurley.

Editorial inference from Brad's portfolio, writing and public record — not a published mandate.

Investment themes

8 documented themes from Brad's essays, talks and portfolio, grouped by what they say about founders.

More themes6
  • Efficiency is a growth strategy2022

    Time to Get Fit argued that a great company had let headcount and capital spending expand past the point of productivity, and that cutting both would restore rather than reduce its capacity to innovate.

    For founders: He reads bloat as a governance failure, not a phase — expect questions about headcount per unit of output.

  • It was never only about costs2023

    A year later he argued the letter had been misread as a cost memo when its real subject was reclaiming a company's focus from the excess that undermines innovation.

    For founders: Frame discipline as focus, not austerity.

  • Cross public and private with one underwriting standard2008

    Altimeter was built to hold the same technology company across private rounds and public listings, which forces private investments to be underwritten against public comparables from the start.

    For founders: Expect public-market-grade diligence on a private round.

  • Concentrated conviction in data and AI infrastructure2020

    Snowflake, Confluent, Cockroach Labs, Baseten and the frontier labs form a coherent bet on the data and inference layer rather than on applications.

    For founders: Infrastructure with measurable consumption growth is the sweet spot.

  • Ownership changes behaviour2025

    Invest America's premise is that giving every American child a funded investment account from birth changes their relationship to capitalism, not just their balance sheet.

    For founders: He treats capital-markets participation as a civic project alongside a financial one.

  • Private capital should co-fund public policy2026

    He has organised corporate commitments to top up children's accounts as a tax-free benefit, arguing private matching multiplies the federal seed many times over.

    For founders: He builds coalitions rather than lobbying alone.

AI & media1
  • Interrogate the capex, not the narrative2025

    On BG2 he and Gurley have repeatedly worked through whether hyperscaler capital spending is supported by demonstrable demand, treating the depreciation schedule and the utilisation rate as the argument.

    For founders: Bring unit economics into an AI conversation with him, not vision.

Founders & company building1
  • Founders deserve a real counterparty2022

    The Meta letter was written as a shareholder willing to say publicly what he believed privately — a stance he has extended to portfolio companies.

    For founders: He will tell you what he thinks, publicly if necessary.

Portfolio coverage

Snowflake is the anchor, alongside ByteDance, Anthropic, Confluent, Cockroach Labs, Baseten and Roblox. Time to Get Fit is credited with helping catalyse one of the largest corporate turnarounds of the decade. Grab, taken public through the largest SPAC of its time, is the counterweight: the company still operates at scale but the stock fell far below its listing level.

Public databases count this portfolio differently — scopes and methodologies vary, so no single total is definitive.

Fundraising FoxTracked Altimeter investments35
Fundraising FoxTracked personal investments3
ForbesMidas List appearance2022
Invest AmericaPredicted private commitments$100B+

Positions, predictions and career history live on Brad Gerstner

Deep-research dossier, compiled August 2026. Every row carries its own source.

Stage
Pre-Seed–Late Stage
Check
$1M – $25M
HQ
Menlo Park, CA, US
Leads rounds
Leads
Instruments
Equity
Founded
2008
Last 12 months
18 investments
AUM
$18.8B
Tracked investments
51

Team · 8 people

from curated & public directories

What they invest in

from 47 of 51 portfolio companies

AI & Machine Learning ×22Enterprise Software ×15Cloud Computing ×13Developer Tools ×12Data & Infrastructure ×10SaaS ×9Deep Tech ×8Fintech ×6

HQs:United States×32Netherlands×2Canada×1China×1United Kingdom×1Singapore×1

Investments · 51 tracked

founders shown can be your intro path

By year:2026 · 132025 · 52024 · 32023 · 22021 · 42020 · 12019 · 12017 · 22016 · 22015 · 134 dated

Grabgrab.comin𝕏NASDAQ: GRABGrowth · Jan 2021

Grab operates a superapp serving Southeast Asia, offering services including ride-hailing and mobility, deliveries, and financial services through Grab Financial Group.

FintechLogistics & Supply ChainMarketplacesMobility & TransportationSingapore, SG

Anthony Tan(Founder)inCheryl GohChin OngHooi Ling TanKell LimSarah Lim

Co-investors137 Ventures500 Global500 Startups VietnamArbor VenturesBase PartnersBeacon VC+21 more

Robloxroblox.comin𝕏NYSE: RBLXGrowth · Jan 2021

Roblox operates an online platform where users sign up to play and create games and interactive experiences.

Creator EconomyGamingSocialSan Mateo, US

David Baszucki(Founder, Chairman & Chief Executive Officer)inErik Cassel(Co-Founder)Naveen Chopra(Chief Financial Officer)Craig Donato(Executive Officer)Michael Guthrie(Executive Officer)Daniel Sturman(Executive Officer)

Co-investorsAltos VenturesAndreessen HorowitzFirst Round CapitalGreylock PartnersIndex VenturesKleiner Perkins+5 more

Truerasnowflake.comin𝕏NYSE: SNOWGrowth

Snowflake is a fully managed cloud data platform that integrates data ingestion, processing, analysis, and AI application development across multiple cloud providers.

AI & Machine LearningCloud ComputingData & InfrastructureSan Mateo, US

Benoit Dageville(Executive Officer, Director)inMarcin Zukowski(Executive Officer)Thierry Cruanes(Executive Officer, Director)Jeffrey T. Balaguras(Executive Officer)Matthew Glickman(Executive Officer)Barbara Walkowski(Executive Officer)

Co-investorsCoatue ManagementEQUIAMForgePoint CapitalHigh AlphaHuman CapitalICONIQ+10 more

Twiliotwilio.comin𝕏NYSE: TWLOApr 2015

Twilio provides a cloud-based communications platform that enables businesses to integrate voice, messaging, and video into applications using APIs.

Cloud ComputingDeveloper ToolsEnterprise SoftwareSan Francisco, US

Jeff Lawson(Co-Founder & Chief Executive Officer)inEvan Cooke(Director)Lee Kirkpatrick(Chief Financial Officer)Roy Ng(Executive Officer)Karyn Smith(Executive Officer)John Wolthuis

Co-investors500 GlobalBessemer Venture PartnersDraper AssociatesFounders Circle CapitalFounders FundIcon Ventures+16 more

Vroomvroom.comNASDAQ: VRMSep 2016

Fort Worth, US

Allon Bloch(Executive Officer, Director)Marshall Chesrown(Executive Officer, Director)Thomas H. Shortt(Executive Officer, Director)Anna-Lisa Corrales(Chief Legal Officer, Chief Compliance Officer and Secretary)Jonathan Sandison(Chief Financial Officer)Kevin Westfall(Director)

Co-investorsFraser McCombs CapitalDurable Capital PartnersFoxhavenGeneral CatalystL CattertonPICO Venture Partners+1 more

Checkoutcheckout.comin𝕏Nov 2025 · $1B✓ verified

Checkout.com offers Flow, a hosted payment page that businesses can deploy with a low-code, one-time integration to accept payments online.

Developer ToolsE-commerceFintechSaaSLondon, GB

Guillaume Pousaz(Founder & CEO)in

Co-investorsCoatue ManagementDragoneer Investment GroupDST GlobalFranklin TempletonGICInsight Partners+5 more

Click Houseclickhouse.comin𝕏✓ verified

ClickHouse develops a column-oriented database management system that enables real-time analytical reporting via SQL queries.

AI & Machine LearningCloud ComputingData & InfrastructureEnterprise SoftwareSan Francisco, US

Aaron Katz(Co-Founder & CEO)inAlexey Milovidov(Co-Founder & CTO)Yury Izrailevsky(Co-Founder & President)

Co-investorsIndex VenturesAdapt VenturesArtisanal VenturesBattery VenturesBessemer Venture PartnersCoatue Management+9 more

Elorian AIelorian.aiin𝕏✓ verified

Elorian is an AI research and product lab building models for visual reasoning, training systems to interpret and manipulate visual representations by understanding spatial relationships, structure, and physical constraints.

AI & Machine LearningDeep TechRoboticsPalo Alto, US

Andrew Dai(Founder)inYinfei Yang(Founder)

Co-investorsMenlo VenturesLG Technology VenturesStriker Venture Partners

Solosolo.ioin𝕏✓ verified

Solo.io provides cloud connectivity solutions that help organizations secure, observe, and control their cloud environments.

AI & Machine LearningCloud ComputingDeveloper ToolsEnterprise Software

Idit Levine(Founder)in

Co-investorsTrue VenturesRedpoint Ventures

23andMe23andme.comin𝕏Aug 2017

23andMe operates a research platform that collects genetic data from millions of users to advance genomic research and health discovery.

BiotechDigital HealthDirect to ConsumerHealthtechLongevityMountain View, US

Anne Wojcicki(Co-founder & CEO)inLinda Avey(Co-founder)Paul Cheung(Co-founder)Andrew Page(Executive Officer, Director)Kathy Hibbs(Executive Officer)

BoardEsther Dyson(Director)

Co-investorsAllied Venture PartnersCivilization Ventures Management, LlcEQUIAMG SquaredHouston Angel NetworkInvestX+12 more

Airbyteairbyte.comin𝕏Dec 2021

Airbyte provides a context layer for agents and pipelines, enabling data connectivity and integration solutions.

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareSan Francisco, US

Michel Tricot(Co-Founder & CEO)inJean Lafleur(Co-Founder & COO)inJean (John) Lafleur(Co-Founder and COO)in

BoardChetan Puttagunta(Benchmark partner and board member)

Co-investors8VCAccelCoatue ManagementFlex Capital PartnersKima VenturesRebel Fund+6 more

American Terawattamericanterawatt.comin𝕏

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)Anton Troynikov(Executive Officer, Director)Arani Bhattacharyay(Executive Officer, Director)

Co-investorsGiant Ventures Global LlpHawk Hill VenturesHOF CapitalScribble VenturesZero Infinity PartnersFounders Fund+1 more

Anthropicanthropic.comin𝕏Growth · Sep 2025 · $13B

Anthropic is an AI safety research company that builds reliable, interpretable, and steerable AI systems.

AI & Machine LearningDeep TechDeveloper ToolsEnterprise SoftwareSan Francisco, US

Dario Amodei(Co-founder & CEO)inDaniela Amodei(Co-founder & President)inTom Brown(Co-founder)inJack Clark(Co-founder & Head of Policy)inJared Kaplan(Co-founder & Chief Science Officer)Chris Olah(Co-founder & Interpretability Research Lead)

Co-investors3Comma Capital7BC Venture CapitalA.Capital VenturesAccelAlkeon InnovationAllen Institute for AI (AI2) Incubator+85 more

Basebase.clubin𝕏Aug 2026 · $1B

Base is a membership community that organizes curated in-person gatherings—small "Circles" of eight and larger "Experiences" such as socials, art tours, and expert-led events—for accomplished, curious adults primarily aged 35 to 70.

ConsumerMarketplacesSocial

Co-investorsConnetic VenturesGeek VenturesTetradAdditionAndreessen HorowitzCapitalG+8 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(CEO and Co-Founder)inAmir Haghighat(CTO and Co-Founder)inPhil Howes(Co-Founder & Chief Scientist)inPankaj Gupta(Co-Founder)inPhilip Howes(Co-Founder and Chief Scientist)Danielle Herzberg(Executive Officer)

Co-investors01 AdvisorsAI FundAlpha PartnersAspire11Athletic VenturesBattery Ventures+23 more

Basetenbaseten.comin𝕏

Baseten provides infrastructure and tooling for high-performance AI model inference, letting teams deploy open-source, custom, and fine-tuned models with optimizations for image generation, transcription, text-to-speech, LLMs, and embeddings.

AI & Machine LearningCloud ComputingDeveloper Tools

Amir Haghighat(Founder)in

Co-investorsHorizonCapitalGConvictionIVP (Institutional Venture Partners)NVIDIASands Capital Ventures+1 more

Bay Area Timesbayareatimes.comin𝕏Feb 2026

Bay Area Times is a daily email newsletter that summarizes business and technology news using one chart per story, covering topics such as AI, robotics, biotech, energy, and software.

Media & Entertainment

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

Blue HexagonFeb 2019Acquired

Deep-learning network and cloud threat-detection company whose assets and staff were acquired by Qualys in 2022.

CybersecurityEnterprise SoftwareSunnyvale, US

Nayeem Islam(Co-founder and CEO)Saumitra Das(Co-founder and CTO)

BoardEric Vishria(Director)in

Co-investorsHarrison MetalBenchmark

Boom Supersonicboom.aeroin𝕏Growth

Boom develops supersonic aviation technology, including Overture, a supersonic airliner with orders from United, American, and Japan Airlines, and Symphony, a turbofan engine built for supersonic flight.

Deep TechHardwareMobility & TransportationCentennial, US

Blake Scholl(Founder & CEO)in

Co-investorsBessemer Venture PartnersCaruso VenturesDenver VenturesDraper AssociatesE15Industrious Ventures+9 more

ByteDancebytedance.comGrowth

ByteDance builds a portfolio of digital platforms and services focused on short-form video, content creation, e-commerce, and workplace collaboration, serving creators and consumers globally.

Creator EconomyE-commerceMedia & EntertainmentBeijing, CN

Yiming Zhang(Founder)inRubo Liang(Founder; Chairman of the Board)inZhang Yiming(Founder)

Co-investors3Comma CapitalAglae VenturesBase PartnersCoatue ManagementEvolution VC PartnersGaldana Ventures+15 more

Clumioclumio.comin𝕏Nov 2017 · $75M

Clumio provides cloud-native backup and recovery for AWS and Google Cloud, offering air-gapped, immutable backups with point-in-time recovery through a serverless, API-first platform.

Cloud ComputingCybersecurityData & InfrastructureSan Jose, US

Woon Ho Jung(Director, Promoter)Poojan Kumar(Executive Officer, Director, Promoter)Kaustubh Sambhaji Patil(Director, Promoter)

BoardMichael L. Speiser(Director)Mark Leslie(Director)

Co-investorsHuman CapitalIndex VenturesNewView CapitalSutter Hill Ventures

Cockroach Labscockroachlabs.comin𝕏Growth

CockroachDB is a distributed SQL database designed for enterprise applications that require high availability and global scalability.

Cloud ComputingData & InfrastructureEnterprise SoftwareNew York, US

Spencer Kimball(Founder)inPeter Mattis(Founder)

Co-investorsCoatue ManagementFirstMark CapitalG SquaredGV (Google Ventures)In-Q-TelIndex Ventures+4 more

Confluentconfluent.ioin𝕏Growth · Apr 2020Acquired

Confluent provides a cloud-native platform for real-time data streaming and movement, enabling organizations to connect applications and respond to business events as they occur.

AI & Machine LearningCloud ComputingData & InfrastructureDeveloper ToolsEnterprise SoftwareMountain View, US

Neha Narkhede(Co-founder; former Chief Technology Officer and board member)inJay Kreps(Co-founder and Chief Executive Officer)inJun Rao(Co-founder)in

Co-investorsAlkeon InnovationAxevil CapitalBattery VenturesCoatue ManagementCusp CapitalDCVC (Data Collective)+13 more

Contractscontracts.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)Phani Gunturu(Co-founder & CTO)in

Co-investorsOperator CollectiveAndreessen HorowitzBain Capital VenturesBlackstoneGeneral CatalystInterlagos+9 more

dbt Labsgetdbt.comin𝕏Oct 2025 · $222M

dbt Labs provides a data transformation platform used by teams to organize, catalog, and manage data in their warehouses.

Data & InfrastructureDeveloper ToolsSaaS

Tristan Handy(Founder & CEO)inDrew Banin(Co-Founder)inConnor McArthur(Co-Founder)

Co-investorsAllison Pickens VenturesAmplify PartnersAndreessen HorowitzCoatue ManagementFirebolt Ventures Management Company, LlcICONIQ+4 more

Densitydensityai.com

Density AI designs custom AI accelerators optimized for frontier-scale large language model inference, combining near-memory compute architecture with high-bandwidth memory density.

AI & Machine LearningDeep Tech

Co-investorsFirestreak VenturesHyphen CapitalNextGen Venture PartnersFounders FundiSeed VenturesTribe Capital+1 more

Densitydensity.ioin𝕏

Density makes Waffle, a self-installable real-time radar sensor for anonymous people counting in rooms, phone booths, and desks.

HardwareIoTPropTechSan Francisco, US

Andrew Farah(Founder)in

Co-investorsA-Rod CorpChapter OneKleiner PerkinsLong Journey VenturesLudlow VenturesReshape+3 more

DuckDBduckdb.orgin𝕏Sep 2023 · $52.5M

DuckDB is an open-source SQL database engine that executes queries directly on files and cloud data sources like Parquet, JSON, and S3.

Data & InfrastructureAmsterdam, NL

Hannes Mühleisen(Founder)in

Co-investorsMadrona Venture GroupAmplify Partners CVAndreessen HorowitzFelicis VenturesRedpoint Ventures

Gleangleancompany.comin𝕏Sep 2024 · $260M

Glean.ai is a spend intelligence and accounts payable platform that automates data extraction, GL coding, bill approvals, payments, accruals, and amortizations while surfacing spending trends and vendor benchmarking data.

AI & Machine LearningFintechSaaS

Co-investorsB Capital GroupB4 CapitalClocktower VenturesContour Venture PartnersCapital One VenturesCoatue Management+11 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)Tijl van Vliet(Co-Founder)

Co-investorsCapitalGConstruct CapitalLux CapitalPICUS CAPITAL137 Ventures1789 Capital+6 more

Hammerspacehammerspace.comin𝕏

Hammerspace offers a data platform that unifies unstructured data across disparate storage silos, on-premises data centers, and public clouds (AWS, Azure, GCP, OCI) into a single global file system to make data available for AI workflows and GPU clusters.

AI & Machine LearningCloud ComputingData & Infrastructure

Co-investorsBreak Trail VenturesFounders Circle CapitalOpen Field CapitalProsperity7 Ventures

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

Inngestinngest.comin𝕏Sep 2025 · $21M

Inngest is an execution layer for agents and workflows that helps engineers build and optimize event-driven workflows without manual retry logic or queue management.

AI & Machine LearningCloud ComputingDeveloper ToolsRoyal Oak, US

Tony Holdstock-Brown(CEO & Founder)Dan Farrelly(CTO & Founder)inDaniel Farrelly(Executive Officer, Director)

BoardJamin Ball(Director)Dan Cahana(Director)in

Co-investorsAfore CapitalAndreessen HorowitzMotive ForceNotable CapitalPreston-Werner VenturesBanana Capital+1 more

Julepjulep.com

Julep is a beauty brand that sells cosmetics such as its Eyeshadow 101 crème-to-powder eyeshadow sticks, sold directly to consumers online.

ConsumerDirect to ConsumerE-commerceSeattle, US

JANE PARK(Executive Officer, Director)DWIGHT B. GASTON(Executive Officer)KATHERINE MACDONALD(Executive Officer)SPENCER LEE(Executive Officer)

BoardSPENCER RASCOFF(Director)JEFF KEARL(Director)

Co-investorsAndreessen HorowitzRaptor GroupMadrona Venture GroupMaveronVersion One Ventures

K2k2space.comin𝕏

K2 Space designs and builds satellite hardware and subsystems — including power, propulsion, autonomy, thermal, and structures — for space missions such as multi-orbit constellations, deep space relay, and large-scale observatories.

Deep TechHardwareSpace Tech

Karan Kunjur(CEO, Co-Founder)inNeel Kunjur(CTO, Co-Founder)

Co-investorsAlpine Space VenturesCapitalGFirst Round CapitalICONIQKleiner PerkinsPathbreaker Ventures+10 more

Laceworklacework.comOct 2025 · $175M

Mountain View, US

Vikram Kapoor(Director)inSanjay Kalra(Director)Stefan Dyckerhoff(Executive Officer, Director)David Hatfield(Director)Robert Dunn(Executive Officer)

BoardSamuel Pullara(Director)

Co-investorsAurumBright Pixel CapitalEngineering CapitalHuman CapitalSINEWAVE VENTURESWebb Investment Network+1 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)Daniel Hanks(Managing Partner)Jim Hunt(General Partner)Alex Poulin(Partner)Juliane Gallina(Partner)George Hoyem(Venture Partner)

Co-investorsIronGate Capital AdvisorsAndreessen HorowitzGeneral CatalystInterlagosLavrock VenturesLightspeed Venture Partners+1 more

LiveKitlivekit.io𝕏Jan 2026 · $100M

LiveKit is a developer platform for building, deploying, and monitoring voice, video, and physical AI agents using open source SDKs, with cloud infrastructure that handles runtime, routing, autoscaling, and realtime observability.

AI & Machine LearningCloud ComputingData & InfrastructureDeveloper ToolsSan Jose, US

Co-investorsIndex VenturesRedpoint VenturesHanabi CapitalSalesforce Ventures

Modern Treasurymoderntreasury.comin𝕏Jan 2021

Modern Treasury provides a payments infrastructure platform that enables businesses to move and track money across fiat and stablecoin rails through a single API.

Crypto & Web3Developer ToolsEnterprise SoftwareFintechSaaSSan Francisco, US

Matt Marcus(Co-Founder & CEO)inDimitri Dadiomov(Cofounder & CEO)inSam Aarons(Co-Founder & CTO)in

Co-investorsArchetypeArtisanal VenturesCastle Island VenturesCleo CapitalMischiefNewView Capital+7 more

Namelynamely.comin𝕏Dec 2016Acquired

Namely is a cloud-based HR platform that combines HRIS, payroll, benefits administration, and talent management for mid-market companies.

Enterprise SoftwareHR TechSaaSNew York, US

Matthew Straznitskas(Executive Officer, Director)

BoardAdam D'Augelli(Director)inDavid Skok(Director)in

Co-investorsNotable CapitalScale Venture PartnersSequoia CapitalTrue VenturesBullpen CapitalGolub Growth+6 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(Co-founder & CEO)Elon Musk(Co-founder & former Co-chair / board member)Greg Brockman(Co-founder & President)inIlya Sutskever(Co-founder & Chief Scientist)inWojciech Zaremba(Co-founder)inJohn Schulman(Co-founder (departed 2024))

Co-investorsA.Capital VenturesA'Z AngelsAdvent InternationalAlpha Wave GlobalAndreessen HorowitzAnti+54 more

Permisopermiso.ioin𝕏Jan 2024Acquired

Permiso provides identity security for AI agents, offering runtime attribution that tracks agent activity after authentication, including tool calls, MCP invocations, and sub-agent spawns.

AI & Machine LearningCybersecurityEnterprise SoftwareMclean, US

Paul Nguyen(Founder)inJason Lawrence Martin(Executive Officer, Director, Promoter)Tin Huu Nguyen(Executive Officer, Director, Promoter)Erik Kriessmann(Director)

Co-investors11.2 CapitalaVenturePoint72 VenturesVertex VenturesWork-Bench

Profluentprofluent.bioin𝕏

Profluent develops AI foundation models combined with an in-house wet lab to design proteins for applications ranging from human health to industrial uses.

AI & Machine LearningBiotechDeep TechEmeryville, US

Ali Madani(CEO)

BoardDylan Morris(Director)

Co-investorsAir Street CapitalAIX VenturesSpark CapitalBezos Expeditions

Rolltryroll.comin𝕏Aug 2026 · $2B

Crypto & Web3FintechNew York City, US

Sid Kalla(Founder)in

Co-investorsblue 9 capitalTechstarsRed Beard VenturesSoftBank Group

Sigma ComputinginMay 2026 · $80M

San Francisco, US

Jason Frantz(Executive Officer, Director)Robert Woollen(Executive Officer, Director)Robert Woolen(Director)Michael Palmer(Executive Officer, Director)Jason Franz(Executive Officer, Director)

BoardMichael Speiser(Director)in

Co-investorsAltimeter Venture PartnersAvenir Growth CapitalDatabricks VenturesPrinceville CapitalServiceNow VenturesSpark Capital+2 more

Tabulartabular.ioSep 2023 · $26MAcquired

Open lakehouse storage platform by the creators of Apache Iceberg (Databricks)

Co-investorsAndreessen HorowitzSV AngelUnusual VenturesValkyrie Ventures Management, LlcEssence Venture CapitalZetta Venture Partners

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

Unlearnunlearn.aiin𝕏Feb 2024

Unlearn develops AI-powered digital twins and data analytics tools to optimize clinical trial design and execution for pharmaceutical companies.

AI & Machine LearningBiotechDeep TechEnterprise SoftwareSan Francisco, US

Charles Fisher(Founder & CEO)inAaron Smith(Founder)

Co-investors8VCAlumni VenturesBasecamp FundDCVC (Data Collective)Eisai Innovation, Inc.Flucas Ventures+5 more

Vulcan Elementsvulcanelements.com

Vulcan Elements manufactures rare earth magnets for critical applications in defense, semiconductors, satellites, data centers, and industrial equipment.

Advanced ManufacturingDefense TechNew MaterialsBenson, US

John Maslin(Executive Officer, Director)inDaniel Aronowitz(Executive Officer, Director)Dan Aronowitz(Director)

BoardDaniel Borok(Director)in

Co-investorsBig Brain HoldingsBlindspot Ventures Management CoDorm RoomDuke Capital PartnersFifth Down CapitalGlynn Capital Management+5 more

XBOWxbow.comin𝕏

XBOW is an autonomous AI system that tests web applications and APIs to find and prove exploitable security vulnerabilities, chaining flaws into working attacks and delivering reproducible exploit evidence with remediation guidance.

AI & Machine LearningCybersecuritySaaSSeattle, US

Oegerikus de Moor(Executive Officer, Director)

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

Co-investorsAlkeon InnovationNorthzoneS VenturesSequoia CapitalNVIDIA

Exits · 5

IPOs and acquisitions across the tracked portfolio

GrabNASDAQ: GRABRobloxNYSE: RBLXTrueraNYSE: SNOWTwilioNYSE: TWLOVroomNASDAQ: VRM

Portfolio news

latest coverage across their companies

Fund performance · per public LP disclosures · 2

as of Dec 2025
FundVintageCommittedNet IRRTVPIDPI
Altimeter Growth Partners Fund V, L.P.LPs: Texas Municipal Retirement System4.0%1.19x
Altimeter Growth Partners Fund VI, L.P.LPs: Texas Municipal Retirement System, Michael and Susan Dell Foundation14.7%1.49x0.01x

Source: public limited-partner disclosures (CalPERS, CalSTRS). Net IRR / TVPI / DPI as reported by the limited partner; a fund's early-year IRR is an interim estimate (J-curve).

Frequently asked questions

What stage does Altimeter Capital invest at?
Altimeter Capital invests at the Pre-Seed, Seed, Series A, Series B, Series C, Growth, Late Stage stages.
What is Altimeter Capital's typical check size?
Altimeter Capital typically writes checks of $1M – $25M.
What sectors does Altimeter Capital focus on?
Altimeter Capital focuses on AI & Machine Learning, Cloud Computing, Enterprise Software, Fintech, SaaS, Sector Agnostic.
Where is Altimeter Capital located?
Altimeter Capital is headquartered in Menlo Park, US.
Does Altimeter Capital lead rounds?
Yes, Altimeter Capital leads investment rounds.
Who does Altimeter Capital co-invest with?
Altimeter Capital most often shares deals with Coatue Management, Franklin Templeton, Battery Ventures, among 26 tracked co-investors.

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Co-investors · 72

Andreessen Horowitz

Andreessen Horowitz (a16z) is a venture capital firm founded in 2009 by Marc Andreessen and Ben Horowitz, known for pioneering the platform model with a large team of operators supporting founders across stages.

$500K – $50M
Coatue Management

Coatue Management is a technology-focused investment firm that invests in innovation across both public and private markets with responsible risk management.

$1M – $20M
Sequoia Capital

Sequoia Capital is a venture capital firm that partners with founders to build technology companies.

$4.4M – $214M
Lightspeed Venture Partners

Lightspeed is a global venture capital firm that has spent over two decades backing innovative companies as an early and first investor.

$1.7M – $87M
Index Ventures

Index Ventures is a multi-stage venture capital firm that backs companies from Seed to IPO and beyond, including through its dedicated seed fund Index Origin.

$540K – $10.8M
Redpoint Ventures

Redpoint Ventures is a venture capital firm established in 1999 by former partners from leading venture firms, focusing on early-stage technology companies across multiple sectors. The firm leverages its partners' technology investment experience and an extensive network of entrepreneurs and industry contacts to support portfolio company growth.

$100K – $10M
General Catalyst

General Catalyst is a venture capital firm operating as a partnership focused on company building and accelerating the growth of the businesses it backs.

$30M
Benchmark

Benchmark is a venture capital firm with offices in San Francisco and Woodside that invests in early-stage startups.

$100K – $30M
Madrona Venture Group

Madrona Venture Group is a Seattle-founded venture firm that partners with founders across early and acceleration stages, providing capital plus hands-on support in recruiting, strategy, business development, and fundraising.

$2M – $10M
Bessemer Venture Partners

Bessemer Venture Partners is a global venture capital firm that partners with entrepreneurs across enterprise, consumer, and healthcare sectors from early stages through growth.

$5M – $100M
Greylock Partners

Greylock Partners is an early-stage venture capital firm that partners with founders building companies from inception. Its partners make only one or two new investments per year to focus deeply on each partnership.

$100K – $200M
IVP (Institutional Venture Partners)

IVP (Institutional Venture Partners) is a venture capital firm that backs breakout companies at critical inflection points, helping them grow into enduring market leaders.

$15M – $75M
60 more co-investors

Dragoneer Investment GroupTiger Global ManagementSapphire VenturesBattery VenturesSoftBank Vision FundThrive CapitalSutter Hill VenturesFirst Round CapitalFirstMark CapitalWork-BenchGreenoaksValor Equity PartnersGV (Google Ventures)Craft VenturesBain Capital VenturesB Capital GroupUnion Square Ventures (USV)Afore CapitalAddition01 AdvisorsHarrison MetalHanabi CapitalOperator CollectiveTrust VenturesRebel FundThe MBA FundFounder CollectiveKrakenGreat Oaks Venture CapitalC2 InvestmentsForerunner VenturesFifth WallAccel-KKRBond Capital ManagementBonfire VenturesAcrew CapitalAbstract VenturesWEEKEND75 & SunnySalesforce Japan Co.,Ltd.Citi VenturesPelion Venture PartnersBallistic VenturesTCVLead Edge CapitalUpside PartnershipAmerican Express Ventures (Amex)Torch CapitalContraryPlayground Global305 VenturesSmash CapitalMontage VenturesElectric AntFirsthandVCAllerfund Ventures, LlcBryant StibelThayer VenturesBoosted CommercePortal Ventures

Firms observed investing alongside Altimeter Capital, from public investor directories. Shared companies are the overlap with Altimeter Capital's recorded portfolio.

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