About Altimeter Capital
Altimeter Capital is a venture capital firm founded in 2008. It is primarily based out of Boston, United States. As of Sep 2026, Altimeter Capital is an active investor, having invested in 89 companies, with 9 new investments in the last 12 months. It primarily invests in Series B round in United States based startups. Its investments are spread across a wide range of sectors from Enterprise Applications to High Tech and Enterprise Infrastructure. Most recently it participated in the $***** Seed round of SciFin AI Overall, Altimeter Capital portfolio has seen 39 unicorns, 13 IPOs and 15 acquisitions including key companies like Roblox, Okta and HubSpot. A lot of funds co-invest with Altimeter Capital, with names like Coatue sharing a substantial percentage of its portfolio. Altimeter Capital has team of 23 people including 8 partners.Key Metrics
Team Members
Portfolio Sectors
Portfolio Locations
Rounds of Entry
Series B, Series E & 7 more
Portfolio Unicorns
Altimeter Capital's List of Top Investments
Altimeter Capital has a portfolio of 89 companies, including 39 unicorns. Their most notable investments are in dbt Labs and Benchling.Their portfolio spans across United States, India, Germany and 5 more locations. They have invested in Enterprise Applications, High Tech, Enterprise Infrastructure and 23 other sectors, across stages such as Series B, Series E and 7 more. Here is the list of top investments by Altimeter Capital:
1. OpenAI
Artificial intelligence research and development platform offering advanced language models. It enables businesses and individuals to build and integrate AI capabilities into their applications and services. It is a technology company specializing in the development of artificial intelligence models, including the popular ChatGPT, which enables users to interact with AI-powered conversational interfaces. The company's research focuses on achieving artificial general intelligence, a system that can solve complex human-level problems, while prioritizing safety and benefits. It provides its AI models through an API platform, enabling developers to integrate AI capabilities into their applications.
Key facts about OpenAI
- Founded Year: 2015
- Location: San Francisco (United States)
- Valuation: $*****
- Stage: Series F
- Total Funding till date: $180B
- Employee Count: 11,056 as on Aug 31, 2026
- Investors: Glynn Capital, K2 Global and 91 Others
- Latest Funding Round: Series F, Apr 22, 2026, $*****
- Highlight: Editors' Pick
2. Roblox
Online gaming platform for developing web and mobile games. The platform enables its users to create its own games through simple drag and drop mechanisms. It has developed Roblox an action game. It generates revenue through virtual purchases in-game by the use of a virtual currency Robux. The platform follows a revenue share model for game developers.
Key facts about Roblox
- Founded Year: 2004
- Location: San Mateo (United States)
- Annual Revenue: $1B+ as on Dec 31, 2025
- Stage: Public
- Total Funding till date: $918M
- Employee Count: 9,866 as on Jul 31, 2026
- Investors: Meritech, ADS Ventures and 22 Others
- Latest Funding Round: Series H, Jan 06, 2021, $*****
- Highlight: Public
3. Okta
Provider of identity management solutions for workforces, customers, and AI. The company delivers platforms securing various identities within an identity security fabric. It offers solutions by identity type and industry. The company provides resources, support, and developer tools.
Key facts about Okta
- Founded Year: 2009
- Location: San Francisco (United States)
- Annual Revenue: $1B+ as on Jan 31, 2026
- Stage: Public
- Total Funding till date: $228M
- Employee Count: 7,868 as on Jul 31, 2026
- Investors: Glynn Capital, Scheuermann Investment and 13 Others
- Latest Funding Round: Post IPO, Feb 21, 2018, $*****
- Highlight: Public
4. HubSpot
Provider of a platform offering marketing, sales, and customer service software. The platform provides tools for marketing automation, sales management, and customer support. It offers an CRM as its core, integrating various hubs such as Marketing Hub, Sales Hub, Service Hub, CMS Hub, Operations Hub, and Commerce Hub, each providing specialized tools to enhance different aspects of customer management and business operations. Key features include a robust CRM supporting contact and deal management, email tracking, marketing email creation, and meeting scheduling.
Key facts about HubSpot
- Founded Year: 2005
- Location: Cambridge (United States)
- Annual Revenue: $1B+ as on Dec 31, 2025
- Stage: Public
- Total Funding till date: $101M
- Employee Count: 15,513 as on Aug 31, 2026
- Investors: Cross Creek, Fidelity Investments and 22 Others
- Latest Funding Round: Post IPO, Jun 02, 2020, $*****
- Highlight: Public
5. RingCentral
Cloud based platform offering unified communication solutions. It offers products with features including video and audio conferencing, team messaging, screen or file sharing, online meeting management, real-time analytics, and live reports. The company caters to industries such as health care, education, finance, retail, government, nonprofit organizations, etc. It enables user access on a subscription-based pricing model.
Key facts about RingCentral
- Founded Year: 1999
- Location: Belmont (United States)
- Last Known Valuation: $*****
- Stage: Acquired
- Total Funding till date: $44M
- Employee Count: 6,671 as on Aug 31, 2026
- Investors: Adams Street Partners, GIC and 59 Others
- Latest Funding Round: Post IPO, Oct 21, 2022, $*****
- Highlight: Acquired
Altimeter Capital's Year-on-Year Investment Trends
Altimeter Capital has invested in 89 companies over the last 14 years, with an average of 8 new investments annually in the last 10 years. In 2025, it made 20 investments, while as of Sep 2026, it has made 20 investments in this year. Its most recent first time investment was in SciFin AI and most recent follow-on round was in Castelion.Year | No. of Investments | ||
|---|---|---|---|
1st Round | Follow-on | Total | |
2026 (YTD) | 7 | 13 | 20 |
2025 | 10 | 10 | 20 |
2024 | 9 | 2 | 11 |
2023 | 2 | 3 | 5 |
2022 | 7 | 3 | 10 |
2021 | 23 | 11 | 34 |
2020 | 4 | 2 | 6 |
2019 | 7 | 0 | 7 |
2018 | 3 | 2 | 5 |
2017 | 2 | 1 | 3 |
Altimeter Capital's Investments by Stage
Altimeter Capital is primarily an Late Stage Investor investor majorly investing in Series B (21) rounds where average round size is $3.39B, Series E (17) rounds where average round size is $4.83B and Series D (15) rounds where average round size is $11.5B.Stage of entry | No. of Investments |
|---|---|
Series B | 21 |
Series E | 17 |
Series D | 15 |
Series C | 13 |
Series A | 7 |
Others | 14 |
Note: We have considered here, only first round of investments
Altimeter Capital's Investments by Sector
Altimeter Capital has a diverse portfolio, with companies operating in the Enterprise Applications, Enterprise Infrastructure, High Tech, FinTech and Consumer. Notably, it has invested in 85 Tech companies, 75 Enterprise (B2B) companies, 70 Software companies and at least 54 companies focusing on Saas.Sector | No. of Investments |
|---|---|
Enterprise Applications | 64 |
Enterprise Infrastructure | 32 |
High Tech | 29 |
FinTech | 11 |
Consumer | 9 |
Others | 72 |
Note: We have considered here, only first round of investments
Altimeter Capital's Investments by Geography
Altimeter Capital has made most investments in United States (77), followed by India where it has made 3 investments.Country | No. of Investments |
|---|---|
United States | 77 |
India | 3 |
Germany | 2 |
United Kingdom | 2 |
Bahamas | 1 |
Others | 3 |
Note: We have considered here, only first round of investments
Altimeter Capital's recent investments
Altimeter Capital has made 20 investments in 2026 so far. SciFin AI and Castelion are the latest among them.Here are the most recent investments by Altimeter Capital:
Filter this listDate | Company | Location | Round Details | Round Amount | Co-Investors |
|---|---|---|---|---|---|
Sep 01, 2026 | United States | Seed | 4318 | [+1] | |
Aug 19, 2026 | United States | Series C | 1996 | [+8] | |
Aug 11, 2026 | - | Seed | 6097 | [+6] | |
Aug 06, 2026 | United States | Series D | 2520 | ||
Aug 04, 2026 | United States | Series A | 1698 | [+4] |
Unicorns in Altimeter Capital's Portfolio
Altimeter Capital has 39 unicorns in its portfolio - XBOW, Nexthop AI, Hadrian and others. The most recent unicorn in their portfolio is XBOW. It became a unicorn in 2026.Here is a list of unicorns in Altimeter Capital's portfolio:
Tracxn Score | Company | Short Description | Founded year | Sector | Location | Company Stage | First Investment/ Acquisition Details |
|---|---|---|---|---|---|---|---|
65 | AI-powered autonomous penetration testing platform | 2024 | Seattle | Series C | sfldqjc | ||
58 | AI infrastructure for cloud infrastructure | 2024 | Santa Clara | Series B | iphiwvi | ||
60 | Builder of AI‑driven autonomous factories that manufacture precision components | 2021 | Torrance | Series D | usjrybg | ||
66 | Provider of aerospace hardware products designed services | 2004 | Los Angeles | Series D | zcomfcy | ||
65 | Provider of battery storage system | 2023 | Austin | Series D | vjnnxa{ |
IPOs and Publicly Listed companies in Altimeter Capital's Portfolio
13 of Altimeter Capital's portfolio companies have become public. Cerebras got listed on the National Association of Securities Dealers Automated Quotations (NASDAQ), in May 2026 at marketcap of $5.55B and Pine Labs got listed on the Bombay Stock Exchange (BSE), National Stock Exchange (NSE) at marketcap of $2.86B.Here are Altimeter Capital's portfolio companies that went public:
Company | IPO Date | First Invested on | First Round of Investment | Round Size |
|---|---|---|---|---|
May 14, 2026 | Nov 2018 | Series D | 3818 | |
Nov 14, 2025 | Jan 12, 2018 | Series B | 1883 | |
Mar 28, 2025 | May 01, 2024 | Series C | 5982 | |
Dec 02, 2024 | Sep 20, 2016 | Series E | 9962 | |
Oct 14, 2021 | Sep 17, 2019 | Series E | 6241 |
Acquired companies in Altimeter Capital's Portfolio
15 companies from Altimeter Capital's portfolio have been acquired. The most recent acquisition was Permiso in Jul 2026 by Okta for $*****.Here are Altimeter Capital's portfolio companies that got acquired most recently:
Company | Acquisition Date | First Invested on | First Round of Investment | Round Size |
|---|---|---|---|---|
Jul 30, 2026 | Jan 22, 2024 | Series A | 7027 | |
Dec 08, 2025 | Apr 21, 2020 | Series E | 2610 | |
Jun 13, 2025 | Aug 31, 2017 | Series F | 7003 | |
Sep 24, 2024 | Nov 19, 2019 | Series C | 2847 | |
Jun 27, 2024 | May 06, 2013 | Series A | 3111 |
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Team profile of Altimeter Capital
Altimeter Capital has a team of 23 members including 8 Partners and 5 Principals located in United States. Altimeter Capital's team sits on the board of 2 companies.Here is a list of top team members in Altimeter Capital:
Name | Designation | Location | Board Memberships | Contact Details |
|---|---|---|---|---|
Partner | San Francisco | |||
Partner | San Francisco | - | ||
Partner | Boston | - | - | |
Partner | Palo Alto | - | ||
Partner | San Francisco | - | ||
Partner | San Francisco | - | ||
Partner | United States | - | ||
Partner | Boston | - | ||
Principal | Seattle | - | - |
Co-investors of Altimeter Capital
Over the past 14 years, 1056 investors have co-invested in Altimeter Capital's portfolio companies. This includes funds and angels.
- Invested before Altimeter Capital: Sequoia Capital, Andreessen Horowitz and 580 others have invested in rounds before Altimeter Capital. There are 15 companies where Sequoia Capital has invested before Altimeter Capital and 15 companies where Andreessen Horowitz has invested before Altimeter Capital.
- Top Co-investors of Altimeter Capital: 204 investors entered a company along with Altimeter Capital. These include investors like Coatue (7 companies).
- Invested after Altimeter Capital: A total of 270 investors have invested in Altimeter Capital's portfolio after their investments. Top Investors include Morgan Stanley (6 companies), T. Rowe Price (6 companies) and Dragoneer Investment Group (5 companies).
Recent News related to Altimeter Capital
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SciFin Debuts With $44 Million Seed Fundingsvdaily.com•Sep 09, 2026•Madrona, Altimeter Capital, S32, Foundation Capital
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A16z leads $300m round for AI infrastructure startup GimletTech in Asia•Sep 05, 2026•Arm, Gimlet Labs, M12, Andreessen Horowitz and 11 others
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Altimeter Adds $2B Stake in Cerebras, Reduces Meta Holding by 31%Cryptocurrency•Aug 15, 2026•Altimeter Capital, Cerebras
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Volta Secures $10B Partnership and $300M Raise at $2.4B ValuationCryptocurrency•Aug 04, 2026•Volta Labs, Andreessen Horowitz, Altimeter Capital, and 10 others
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Japan $251 Billion Softbank Group Billionaire Founder Masayoshi Son (Age 68) Drops Plan to Handover Leadership Within 2 Years & Will Stay for Another 10 Years or More, Softbank Group Founded in 1981 by Masayoshi Son, Current Market Value at $251 Billion, Share Price +54.2% YTD, +205.6% Last 12 Months & +259% Last 5 YearsCaproasia•Jun 25, 2026•Khosla Ventures, Altimeter Capital, Fidelity, Microsoft and 6 others
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SoftBank's Masayoshi Son Scraps Retirement Plan to Accelerate AI InvestmentsThe Business Times•Jun 24, 2026•SoftBank Group, Altimeter Capital, Thrive Holdings
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Baseten Startup Raises $1.5 Billion, Sharply Increasing Market ValueZamin.uz•Jun 19, 2026•OpenAI, Altimeter Capital, Microsoft, Wellington and 1 other
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AI Inference Startup Baseten Reportedly Raising $1.5B Months After Last Mega RoundTechCrunch+•Jun 19, 2026•Altimeter Capital, Spark Capital, Wellington, Baseten Technologies and 5 others
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Sigma Named 2026 Snowflake Product Partner of the Year and EMEA Product Growth Partner of the YearBusiness Wire•Jun 02, 2026•Sigma, XN LP, Princeville Capital, K5 Global and 7 others
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Altimeter Capital Completes Unremarkable Exit from Indian CompanyVCCircle•Jun 01, 2026•Altimeter Capital
