Altimeter Capital

What Altimeter Capital does

Altimeter Capital is a US-based, technology-focused investment firm founded in 2008 by Brad Gerstner, headquartered in Menlo Park, California with a second office in Boston. The legal entity, Altimeter Capital Management, LP, is a Delaware limited partnership and SEC-registered investment adviser. The firm manages a portfolio of funds that invest across both public and private markets, positioning itself as a long-term crossover partner to technology companies from growth stages through public-market transitions. Its self-described mission is to support 'visionary entrepreneurs building iconic companies and disrupting markets,' and it has historically executed that mandate through both direct private investments and a SPAC vehicle — Altimeter Growth Corp. — which completed its IPO in 2021.

The firm's business model is the conventional asset-management model: it raises limited-partner capital, deploys that capital into technology equities and growth-equity investments, and earns a combination of management fees on assets under management and carried interest on realized gains. AUM is reported at approximately $6.6 billion based on Q4 2025 disclosures, a scale that places Altimeter in the mid-tier institutional manager bracket. Marketing, fundraising, and LP servicing run through its IR functions ([email protected], Director of IR Megan Sabel), with media and compliance handled through dedicated contact channels — no online investor onboarding or retail distribution is conducted, consistent with institutional positioning.

Investment activity in 2026 is heavily concentrated in artificial intelligence. Notable deployments include leading Anthropic's $65 billion Series H at a $965 billion post-money valuation (May 2026, co-led with Dragoneer, Greenoaks, and Sequoia), participating in OpenAI's approximately $10 billion tranche at an ~$850 billion valuation (March 2026), co-leading Baseten's $1.5 billion Series F at up to $13 billion (June 2026) and participating in its earlier Series E at $5 billion, plus checks into AI infrastructure (Nexthop AI, $500M Series B at $4.2B), AI-native seed (Elorian, $55M seed at $300M), AI security (XBOW, $120M Series C at >$1B), defense/industrial AI (Hadrian, $7.5B valuation), software tooling (Sigma Computing, $80M Series E at $3B), and large late-stage (Thrive Holdings, ~$2B round). A partial exit from Pine Labs via a ₹211 crore secondary block deal (May 2026) evidences active realization alongside new deployment. Brad Gerstner serves as CEO, with Apoorv Agrawal (Partner, Stanford MS&E lecturer on 'Economics of the AI Supercycle'), Hab Siam (General Counsel/CCO), John Kiernan (CFO/Partner), and Megan Sabel (Director of IR) rounding out disclosed senior leadership.

Name

Altimeter Capital

Legal name

Altimeter Capital Management, LP

Website

https://altimeter.com

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

11–50 employees

Short description

Altimeter Capital is a US technology-focused investment firm managing public equity and growth-stage private equity funds. Founded in 2008 by Brad Gerstner and headquartered in Menlo Park, it invests across public and private markets to back technology entrepreneurs through all growth stages.

Ownership category

akta.pro rank

Product category

Asset Management

NAICS

Portfolio Management and Investment Advice (523940)

SIC

Investment Advice (6282)

akta.pro primary industry

Equity Capital Advisory (Private Equity Placements, Growth Capital) (BPAHAOAE)

akta.pro secondary industry

Capital Markets Advisory (IPO Readiness, SPAC, ECM/DCM Advisory) (BPAHAOAL)

Keywords

• Technology investment
• Growth equity
• Public market investing
• Private equity funds
• Venture capital

Headquarters

HQ city

Menlo Park

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales

Marketing channels1 record

Core offering

Altimeter Capital is a technology-focused investment firm that manages a variety of funds investing in both public equity markets and growth-stage private equity markets. The firm deploys capital into technology companies across all stages of growth and seeks to serve as an expert long-term partner to portfolio companies, including through their transitions into the public markets.

Product overview

Altimeter Capital is a technology-focused investment firm that manages a variety of funds investing in public and private markets. The firm serves as a long-term partner to visionary entrepreneurs building iconic companies, providing investment across all stages of growth as they enter public markets. Altimeter's services include growth equity investment, public market investing, and strategic partnership for companies pursuing IPO pathways. The firm operates offices in Silicon Valley (Menlo Park) and Boston.

Differentiator

Problem solved

Functional benefit

Products and services

• Public Equity Fund A fund managed by Altimeter Capital that invests in publicly traded technology companies, providing capital to growth-stage and mature technology businesses in the public markets.
• Growth-Stage Private Equity Funds Private equity funds managed by Altimeter Capital that invest in growth-stage technology companies, providing capital and strategic partnership to visionary entrepreneurs building iconic companies.
• Altimeter Growth Corp (SPAC) A special purpose acquisition company (SPAC) sponsored by Altimeter Capital Management, LLC, incorporated in Delaware and established to pursue mergers or acquisitions with privately held businesses. Completed its IPO in 2021.

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators2 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Sequoia Capital: Premier Silicon Valley venture and growth firm investing across stages in technology, including co-investor with Altimeter in Anthropic's $65B Series H. Directly comparable as a lead technology investor with multi-stage funds.
• Andreessen Horowitz (a16z): Technology-focused multi-stage investor with public-equity and private funds, similar crossover strategy and founder-led branding. Both firms anchor late-stage AI rounds and position as long-term partners across IPOs.
• Dragoneer Investment Group: Tech-focused public-and-private crossover fund that co-led Anthropic's Series H alongside Altimeter. Closest direct peer in fund structure, check size, and growth-stage concentration.
• Greenoaks Capital: Concentrated growth-equity investor in public and private tech, co-lead in Anthropic and frequent co-investor with Altimeter on activist/regulatory matters including the Coupang investor-state dispute.
• Tiger Global Management: Late-stage technology crossover investor running both public-equity and venture-style funds. Highly comparable investment philosophy and stage focus to Altimeter.
• Coatue Management: Tech-focused long/short public equity firm that has expanded aggressively into late-stage venture, mirroring Altimeter's public-private crossover mandate with mega-checks into AI leaders.
• D1 Capital Partners: Crossover fund investing across public equities and late-stage private companies; co-invested with Altimeter in Thrive Holdings' ~$2B round. Similar founder-friendly, concentrated thesis approach.
• General Catalyst: Multi-stage technology investor with creation-stage and growth funds. Comparable as a tech-focused firm aiming to be a long-duration partner to founders across lifecycle stages.
• Insight Partners: Tech-focused growth and venture firm writing large checks in later rounds, comparable in stage focus and engagement model to Altimeter's growth equity strategy.

Emerging players

• Spark Capital: Tech-focused growth investor co-leading rounds such as Baseten's $1.5B Series F alongside Altimeter. Comparable in late-stage tech focus but with a different stage mix and check-size profile.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/altimeter-capital

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments166 records

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Altimeter Capital