Venture capital firm
Altimeter portfolio
altimeter.comAltimeter is a venture capital firm based in Menlo Park, United States. It has invested in 67 venture-backed companies across 101 funding rounds on VCMC, and led 39 of those rounds. 21 of them were in the last 12 months.
67
Venture-backed companies
in its portfolio on VCMC
101
Funding rounds
led 39
21
Last 12 months
rounds, Oct 2025 to Sep 2026
54
With a disclosed valuation
of 67 companies
$1.91T
Combined value of its private companies
the whole companies, not what Altimeter owns
62 private companies Altimeter has backed have a VCMC valuation; together they are worth $1.91T. That is the value of the whole companies, not what Altimeter owns. Anthropic is 57% of the total. 5 companies it backed have since been acquired and are not included. How VCMC values companies.
Values cover private companies only; public companies are not included.
Portfolio
Altimeter's most valuable portfolio companies
The 10 most valuable private companies Altimeter has backed, by VCMC's valuation. Values cover private companies only; public companies are not included.
- 1 Anthropic Tech Companies, San Francisco $1.09T range $838.9B – $1.51T Led at Series F, 2025
- 2 OpenAI Tech Companies, San Francisco $374.6B range $263.0B – $430.9B Joined at Growth, 2024
- 3 Anduril Aerospace and Defence, Costa Mesa $68.6B range $53.0B – $91.2B Joined at Series F, 2024
- 4 Ramp Tech Companies, New York $60.1B range $52.2B – $75.9B Joined at Series C, 2021
- 5 Checkout.com Payment Processing & Point of Sale, London $32.6B range $4.9B – $59.2B Joined at Series D, 2022
- 6 Crusoe Hosting & Cloud Infrastructure Providers, Denver $31.7B range $26.9B – $46.2B Joined at Series E, 2025
- 7 ClickHouse Tech Companies, Redwood City $19.9B range $13.0B – $25.0B Led at Series B, 2021
- 8 Deel Software Development Services, San Francisco $18.4B range $15.0B – $21.2B Joined at Series D, 2021
- 9 Baseten Software Development Services, San Francisco $14.7B range $11.3B – $21.5B Led at Series E, 2026
- 10 Base Power Utility companies, Austin $13.8B range $11.3B – $19.4B Joined at Series B, 2025
Portfolio
Full Altimeter portfolio (67 companies)
67 companies. Load more shows the rest.
| # | Last round | History | Range | Trend | Grade | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | OpenAI Tech Companies · since Growth, 2024 | Other Mar 2026 $122.00B | $374.6B | $263.0B – $430.9B | $374.6B (0%) | $33.7B | 0% | 11,490 | growing | A | |
| 2 | Anthropic Tech Companies · led at Series F, 2025 | Series H May 2026 $65.00B | $1.09T | $838.9B – $1.51T | $1.31T (+20%) | $144.0B | 0% | 6,076 | growing | A | |
| 3 | Anduril Aerospace and Defence · since Series F, 2024 | Series H May 2026 $5.00B | $68.6B | $53.0B – $91.2B | $79.3B (+16%) | $8.7B | 0% | 9,860 | growing | A | |
| 4 | Crusoe Hosting & Cloud Infrastructure Providers · since Series E, 2025 | Series F Sep 2026 $3.90B | $31.7B | $26.9B – $46.2B | $40.2B (+27%) | $4.4B | 0% | 1,720 | growing | A | |
| 5 | Ramp Tech Companies · since Series C, 2021 | Growth Equity Oct 2026 $1.85B | $60.1B | $52.2B – $75.9B | $66.0B (+10%) | $5.9B | 0% | 6,282 | growing | A | |
| 6 | Groq Electronical Components Manufacturing · since Growth, 2025 | Growth Equity Jun 2026 $650M | $7.0B | $5.0B – $10.0B | $6.0B (-15%) | $697M | 97% | 309 | shrinking | B | |
| 7 | Base Power Utility companies · since Series B, 2025 | Series D Aug 2026 $1.00B | $13.8B | $11.3B – $19.4B | $16.9B (+23%) | $1.9B | 0% | 486 | growing | A | |
| 8 | Baseten Software Development Services · led at Series E, 2026 | Series F Jun 2026 $1.50B | $14.7B | $11.3B – $21.5B | $18.7B (+27%) | $2.1B | 0% | 419 | growing | B | |
| 9 | Hadrian Aerospace and Defence · since Series C, 2025 | Series D Aug 2026 $1.37B | $8.3B | $6.8B – $11.8B | $10.2B (+23%) | $1.1B | 0% | 269 | flat | A | |
| 10 | Checkout.com Payment Processing & Point of Sale · since Series D, 2022 | Series D Jan 2022 $1.00B | $32.6B | $4.9B – $59.2B | $30.9B (-5%) | $6.9B | 0% | 2,477 | up | D | |
| 11 | Castelion Aerospace and Defence · led at Series B, 2025 | Series C Aug 2026 $1.00B | $13.6B | $11.3B – $19.4B | $16.9B (+24%) | $1.9B | 0% | 254 | growing | A | |
| 12 | FalconX Financial Services · led at Series C, 2021 | Debt Aug 2026 $1.00B | $10.0B | $1.6B – $15.8B | $10.0B (0%) | $1.5B | 0% | 604 | up | D | |
| 13 | Udaan Groceries · since Series D, 2021 | Series G Jun 2025 $114M | $2.1B | $1.3B – $2.6B | $2.0B (-7%) | $295M | 24% | 10,651 | flat | B | |
| 14 | FTX Cryptocurrency · since Series B, 2021 | Series C Jan 2022 $400M | $238M | $0 – $238M | $238M (0%) | – | 100% | 63 | shrinking | dead | |
| 15 | Plaid Payment Processing & Point of Sale · led at Series D, 2021 | Growth Equity Apr 2025 $575M | $8.5B | $5.7B – $10.2B | $8.1B (-5%) | $832M | 18% | 5,107 | growing | A | |
| 16 | DataRobot Tech Companies · led at Growth, 2020 | Series G Jul 2021 $300M | $2.6B | $460M – $8.0B | $2.3B (-11%) | $855M | 48% | 868 | flat | D | |
| 17 | Rapyd Payment Processing & Point of Sale · since Series E, 2021 | Growth Equity Feb 2025 $500M | $4.8B | $3.1B – $5.8B | $4.4B (-7%) | $560M | 19% | 857 | up | B | |
| 18 | Fireblocks Software Development Services · since Series E, 2022 | Series E Jan 2022 $550M | $7.5B | $1.1B – $11.2B | $7.2B (-4%) | $1.4B | 0% | 970 | up | D | |
| 19 | Ro Health Care Services · since Series D, 2021 | Growth Equity Feb 2022 $150M | $5.7B | $844M – $8.6B | $5.6B (-2%) | $693M | 0% | 1,481 | up | D | |
| 20 | RingCentral Tech Companies · led at Series D, 2021 | Series D Aug 2021 $450M | $11.8B | $1.2B – $21.0B | $11.2B (-5%) | $2.0B | 24% | 310 | unknown | D | |
| 21 | Deel Software Development Services · since Series D, 2021 | Series E Oct 2025 $300M | $18.4B | $15.0B – $21.2B | $15.1B (-18%) | $2.6B | 81% | 9,646 | flat | A | |
| 22 | K2 Space Aerospace and Defence · led at Series B, 2025 | Series D Jul 2026 $500M | $7.2B | $5.9B – $10.2B | $8.8B (+22%) | $972M | 0% | 332 | growing | A | |
| 23 | ClickHouse Tech Companies · led at Series B, 2021 | Series D Jan 2026 $400M | $19.9B | $13.0B – $25.0B | $21.7B (+9%) | $2.4B | 0% | 577 | growing | B | |
| 24 | Vulcan Elements Electronical Components Manufacturing · led at Series A, 2025 | Debt Nov 2025 $620M | $591M | $237M – $680M | $591M (0%) | $82.8M | 0% | 83 | growing | B | |
| 25 | Glean Tech Companies · led at Series E, 2024 | Series F Jun 2025 $150M | $10.0B | $6.1B – $11.5B | $10.0B (0%) | $1.1B | 0% | 1,632 | up | B | |
| 26 | Nexthop AI Tech Companies · since Series B, 2026 | Series B Mar 2026 $500M | $5.6B | $3.7B – $7.6B | $6.6B (+18%) | $722M | 0% | 292 | growing | B | |
| 27 | Tekion Tech Companies · since Series D, 2021 | Growth Equity Jul 2024 $200M | $4.6B | $2.1B – $5.3B | $4.6B (-1%) | $409M | 0% | 3,016 | up | B | |
| 28 | Cockroach Labs Tech Companies · led at Series C, 2019 | Series F Dec 2021 $278M | $5.1B | $398M – $7.1B | $4.7B (-8%) | $798M | 0% | 709 | flat | D | |
| 29 | Parloa Tech Companies · led at Series B, 2024 | Series D Jan 2026 $350M | $3.9B | $2.6B – $4.8B | $4.2B (+8%) | $501M | 0% | 597 | growing | B | |
| 30 | Coinmerce Cryptocurrency · since Series E, 2021 | Series E Oct 2021 $270M | $3.0B | $609M – $9.9B | $2.6B (-14%) | $1.1B | 59% | 2,106 | flat | D | |
| 31 | Chainalysis Tech Companies · since Series E, 2021 | Series F May 2022 $170M | $7.4B | $832M – $12.7B | $6.8B (-8%) | $1.4B | 10% | 805 | flat | D | |
| 32 | OneStudyTeam Tech Companies · led at Series D, 2022 | Series D Apr 2022 $220M | $3.2B | $341M – $6.3B | $3.0B (-8%) | $686M | 8% | 78 | flat | D | |
| 33 | StockX Clothing Stores · since Series E, 2020 | Series E Dec 2020 $275M | $2.5B | $221M – $3.9B | $2.5B (0%) | $487M | 2% | 1,515 | flat | D | |
| 34 | Workato Tech Companies · led at Series D, 2021 | Series E Nov 2021 $200M | $6.8B | $917M – $9.5B | $6.7B (-1%) | $940M | 0% | 1,470 | up | D | |
| 35 | dbt Labs Tech Companies · led at Series C, 2021 | Series D Feb 2022 $222M | $6.2B | $2.5B – $9.2B | $6.2B (0%) | $876M | 0% | 1,279 | growing | C | |
| 36 | Starburst Tech Companies · since Series D, 2022 | Series D Feb 2022 $250M | $2.6B | $282M – $4.9B | $2.5B (-6%) | $515M | 16% | 530 | flat | D | |
| 37 | Boom Aircraft Parts & Services · since Series B, 2025 | Series B Dec 2025 $300M | $2.1B | $1.3B – $2.5B | $2.1B (+2%) | $259M | 19% | 360 | up | B | |
| 38 | Tech Companies · since Series B, 2019 | Series E May 2026 $80M | $3.4B | $2.6B – $4.5B | $3.9B (+16%) | $428M | 0% | 1,415 | up | A | |
| 39 | Tech Companies · led at Growth, 2015 | Acquisition Jan 2017 $3.70B | $2.1B acquired 2017 | $1.5B – $2.4B | – | – | 0% | – | unknown | A | |
| 40 | Tech Companies · led at Series C, 2021 | Growth Equity May 2026 $40M | $462M | $292M – $744M | $489M (+6%) | $44.0M | 0% | 61 | unknown | B | |
| 41 | Tech Companies · led at Series B, 2021 | Series B Dec 2021 $150M | $301M | $137M – $1.7B | $300M (0%) | $286M | 97% | 112 | down | D | |
| 42 | Tech Companies · led at Series D, 2017 | Growth Equity Aug 2018 $60M | $158M | $46.6M – $541M | $158M (0%) | $65.5M | 76% | 149 | down | D | |
| 43 | Tech Companies · led at Series B, 2021 | Series B Nov 2021 $60M | $318M | $30.6M – $872M | $316M (-1%) | $85.3M | 26% | 89 | up | D | |
| 44 | Tech Companies · since Series C, 2015 | Acquisition Jun 2024 | $273M acquired 2024 | $24.6M – $415M | – | – | 0% | 270 | up | D | |
| 45 | Tech Companies · led at Series A, 2024 | Acquisition Jul 2026 $200M | $56.3M acquired 2026 | $33.6M – $143M | – | – | 97% | 54 | down | C | |
| 46 | Video Games - Development & Publishing · since Growth, 2021 | Acquisition Feb 2024 $1.50B | $35.2B acquired 2024 | $17.5B – $42.0B | – | – | 11% | 8,400 | flat | B | |
| 47 | Solar Energy Company · since Series B, 2025 | Series D Aug 2026 $1.00B | $13.8B | $11.3B – $19.4B | $16.9B (+23%) | $2.0B | 0% | 21 | up | A | |
| 48 | Tech Companies · led at Series D, 2021 | Acquisition Jun 2024 | $5.2B acquired 2024 | $2.7B – $11.4B | – | – | 97% | 760 | down | C | |
| 49 | Tech Companies · led at Series E, 2021 | Series F Nov 2021 $100M | $3.0B | $468M – $8.5B | $2.9B (-4%) | $905M | 41% | 805 | flat | D | |
| 50 | Tech Companies · led at Series C, 2019 | Series D Feb 2024 $75M | $435M | $148M – $1.2B | $295M (-32%) | $88.0M | 80% | – | down | D |
Valuation: VCMC's valuation with its range, from a low to a high scenario; a company with no valuation shows a dash, one acquired after its last round its last value as a private company.
Activity
How Altimeter invests: stages, industries and countries
Most of its rounds are Series C and later (77%). Its companies span 21 industries, most in Tech Companies, Software Development Services and Aerospace and Defence, across 8 countries.
Rounds by stage
- Seed 1
- Series A 3
- Series B 19
- Series C and later 78
Investments by industry
- Tech Companies 34
- Software Development Services 5
- Aerospace and Defence 4
- Payment Processing & Point of Sale 4
- Biotechnology 2
- Cryptocurrency 2
- Electronical Components Manufacturing 2
- Aircraft Parts & Services 1
Investments by country
- United States 55
- India 3
- Germany 2
- Israel 2
- United Kingdom 2
- Bahamas 1
Recent rounds
Altimeter's latest investments
Altimeter's most recent funding rounds, newest first. 21 rounds in the last 12 months.
- Crusoe Series F $3.90B 17 Sep 2026
- Castelion Series C $1.00B 19 Aug 2026
- Hadrian Series D $1.37B 6 Aug 2026
- Base Power Series D $1.00B 3 Aug 2026
- Series D $1.00B 3 Aug 2026
- K2 Space Series D $500M 30 Jul 2026
- Baseten Series F, led $1.50B 22 Jun 2026
- Anthropic Series H+, led $65.00B 28 May 2026
- Series E $80M 18 May 2026
- Series C $120M 18 Mar 2026
Co-investors
Altimeter's top co-investors
The investors that most often join the same rounds as Altimeter. Andreessen Horowitz leads, with 24 rounds together.
- Andreessen Horowitz 24 rounds together
- Coatue 22 rounds together
- Sequoia Capital 20 rounds together
- Lightspeed Venture Partners 20 rounds together
- General Catalyst 17 rounds together
- Spark Capital 16 rounds together
- Thrive Capital 14 rounds together
- Index Ventures 13 rounds together
- Tiger Global 12 rounds together
- Dragoneer Investment Group 12 rounds together
About
About Altimeter
Altimeter Capital Management, LP is an American investment firm engaged in managing funds that invest in both public and private markets. The company provides investment advisory services to entrepreneurs and companies at various stages of growth, including support for initial public offerings. Altimeter operates as an SEC-registered investment adviser and serves clients in the United States.
Description from Veridion's company data.
- Based in
- Menlo Park, United States
- Team
- 57 people, +19% in a year
- Type
- Venture capital firm
Focus markets
- Technology
What Altimeter offers
- Investment Fund Management
- Public Market Investment Management
- Private Market Investment Management
- Venture Capital Investment Services
- Startup Growth Partnership Services
- IPO Readiness Advisory Services
- Investor Relations Consulting
- Portfolio Company Advisory Services
Questions
Altimeter: frequently asked questions
How many companies has Altimeter invested in?
67 venture-backed companies on VCMC, across 101 funding rounds.
What are Altimeter's most valuable private companies?
Anthropic ($1.09T), OpenAI ($374.6B), Anduril ($68.6B), by VCMC's valuation.
What was Altimeter's latest investment?
Crusoe, a Series F round in Sep 2026 of $3.90B.
Which stages does Altimeter invest in?
Altimeter invests most often at Series C and later (78 rounds), followed by Series B (19) and Series A (3). It has also joined 1 seed round.
What is Altimeter's portfolio worth?
Its private companies with a VCMC valuation are worth $1.91T together. That is the sum of the companies' values, not what Altimeter owns.
Who does Altimeter invest alongside?
Andreessen Horowitz (24 rounds), Coatue (22 rounds), Sequoia Capital (20 rounds).