Investor profile for Altimeter Capital: stage-based planning range, investment stages, sector focus, portfolio companies, sources, and verification status. Part of the Venture Capital Tracker directory.

VC fund profile · evidence-aware directory data

Altimeter Capital stages, portfolio and investment profile

Brad Gerstner's crossover technology investor managing public equity and private growth funds from Menlo Park, backing category-defining software and internet companies.

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Stage-based planning range

$1M–$10M

This is a planning range inferred from stage coverage, not a firm-disclosed check size.

Methodology: Stage bucket inferred from the rounds a fund leads or invests in.

No firm-specific check-size disclosure is recorded.

Source link not recorded Confidence: 25% Verified: Not recorded View methodology

Investment stages

Leads: Series B+

Participates: Series A, Series B+

Sector focus

Enterprise SaaS · Infrastructure & Cloud

Geography

Menlo Park, CA

Founded 2008

Fund size / AUM

Not recorded

A separate fund-size evidence record is not yet available.

Portfolio in our directory

20

Linked startup profiles

Latest fund vehicle

Not recorded

Vehicle name, size, and vintage are not yet structured.

Recent tracked investment

Base Power

Series D · $1B · August 2026

Rounds they lead

Series B+

Rounds they invest

Series A Series B+

Last verified: Not recorded. Check-size evidence is labeled by basis so planning estimates are not presented as firm disclosures.

Portfolio companies we track

Startups in our directory that list Altimeter Capital as an investor (20 total).

Related investment articles

FAQs about Altimeter Capital

Stage fit, check size, thesis, and how founders typically approach this firm — based on public sources and our directory.

Altimeter Capital focuses on growth equity and late-stage private rounds (Series B and beyond), often leading or taking large positions. The firm also holds public-market stakes in technology companies through its crossover hedge fund.
For private growth investments, Altimeter typically deploys roughly $10M–$200M per deal depending on stage and conviction. The firm is not a seed investor; check size scales with category-leadership potential.
Altimeter Capital is headquartered in Menlo Park, California, with additional offices in Boston. The firm invests globally in technology companies across both private and public markets.
Altimeter targets high-growth software, internet, cloud infrastructure, fintech, and AI platforms. The firm seeks category-defining businesses with durable competitive advantages and paths to public-market scale.
Altimeter frequently leads or co-leads growth rounds and can anchor pre-IPO financings. Its crossover model allows continued support after IPO through the public fund.
In our directory, Altimeter Capital is linked to OpenAI (/startup/openai), Deel (/startup/deel), dbt Labs (/startup/dbt-labs), Benchling (/startup/benchling), MotherDuck (/startup/motherduck), Starburst (/startup/starburst), Tabular (/startup/tabular), Loft (/startup/loft), Hadrian (/startup/hadrian), Inferact (/startup/inferact), Inngest (/startup/inngest), Base Power (/startup/base-power), Castelion (/startup/castelion), and OfferUp (/startup/offerup).
Altimeter engages founders who are raising substantial growth rounds with clear category leadership. Introductions typically come from prior investors, bankers, or peer founders; the firm does not operate a seed-stage application process.
August 2026: Altimeter returned on Castelion’s $13B Series C after co-leading the December 2025 Series B (/2026-castelion-1b-series-c-13b-hypersonics). Also see OpenAI financing coverage (/2026-openai-110b-private-round) and /fund/altimeter-capital.

By Venture Capital Tracker

Editorial note: AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.