This Lambda company profile covers the company's valuation, revenue, funding rounds, investors and history. Lambda works in AI infrastructure, with a focus on GPU cloud. It was founded in 2012 and is headquartered in San Francisco, California, United States. Its latest valuation on record is About US$6 billion (reported) (November 2025). Every figure links to a public source, and anything the company hasn't disclosed is marked as such.
Revenue
| Metric | Value | As of | Source |
|---|---|---|---|
| Reported outlook | 2026 revenue reported on track to exceed US$1.5 billion; reported talks to raise up to US$3 billion at more than US$12 billion | August 2026 | AI Weekly (citing Bloomberg) |
Funding history
| Date | Round | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| Nov 2025 | Series E | More than US$1.5B | About US$6B (reported) | TWG Global (lead); US Innovative Technology Fund and existing investors | HPCwire |
| Feb 2024 | Series C | US$320M | US$1.5B | US Innovative Technology Fund (lead) | Bloomberg |
Lambda timeline
Key dates from the sources on this page, oldest first. Metric snapshots are listed after the funding events.
- 2012 — Lambda is founded in San Francisco by Stephen Balaban (CEO) and Michael Balaban.
- Feb 2024 — Series C: US$320M, valuing the company at US$1.5B. Investors: US Innovative Technology Fund (lead).
- Nov 2025 — Series E: More than US$1.5B, valuing the company at About US$6B (reported). Investors: TWG Global (lead); US Innovative Technology Fund and existing investors.
- August 2026 — Reported outlook: 2026 revenue reported on track to exceed US$1.5 billion; reported talks to raise up to US$3 billion at more than US$12 billion.
Investors
Overview
Lambda is an AI cloud company that rents Nvidia GPUs to developers, AI startups, research labs and large enterprises for training and running AI models. It started by selling GPU workstations and servers to machine learning researchers, then built a cloud where customers can rent single GPUs by the hour or reserve large clusters for months or years. As demand for AI compute exploded, Lambda grew into one of the leading "neoclouds", alongside CoreWeave, Crusoe and Nscale. In November 2025 it raised more than US$1.5 billion in a Series E led by TWG Global, reported to value it at about US$6 billion, and in 2026 it was reported to be in pre-IPO talks at a much higher valuation.
Brothers Stephen Balaban, the CEO, and Michael Balaban founded Lambda in 2012 in San Francisco. The company focused early on hardware and cloud services for deep learning, which positioned it well when generative AI created enormous demand for GPUs.
Products
- On-demand GPU cloud: self-service access to Nvidia GPUs by the hour.
- Reserved clusters: large, dedicated GPU clusters for training frontier and enterprise models.
- AI factories: large-scale data centre deployments for hyperscalers and labs.
- Inference services: APIs and endpoints for running open models.
- Workstations and servers: hardware sold to researchers and companies.
- Lambda Stack: software that installs and manages machine learning frameworks.
Funding
Lambda raised early funding from investors including Gradient Ventures and Nvidia, and used debt secured on GPUs to finance capacity. In February 2024 it raised US$320 million at a US$1.5 billion valuation, according to Bloomberg. In November 2025 it announced more than US$1.5 billion in Series E funding led by TWG Global, the holding company run by Thomas Tull and Mark Walter, with Tull's US Innovative Technology Fund and existing investors. Lambda didn't publish a valuation; Bloomberg-sourced reports put it at about US$6 billion. In August 2026, Bloomberg reported that Lambda was in talks to raise up to US$3 billion at more than US$12 billion ahead of a possible IPO. We use the reported US$6 billion figure until a new round is confirmed.
Business model
Lambda earns revenue by renting GPU capacity, either on demand or through long-term contracts. Long-term contracts with large customers provide predictable revenue that can support borrowing to buy more GPUs. Its costs include GPUs, data centre space, power and networking. Margins depend on utilisation, contract pricing and the cost of financing hardware. Reports said Lambda signed a multibillion-dollar agreement with Microsoft to deploy AI infrastructure using tens of thousands of Nvidia GPUs.
Competition
Lambda competes with CoreWeave, now public; with neoclouds such as Crusoe, Nscale, Together AI and Nebius; with hyperscalers AWS, Microsoft Azure, Google Cloud and Oracle; and with serverless platforms such as Modal. Its strengths are a long history with AI developers, a simple self-service cloud and large contracts with major customers.
Lambda at a glance
Lambda is a San Francisco AI cloud company founded in 2012 by brothers Stephen and Michael Balaban. It rents Nvidia GPUs on demand and in large clusters and builds AI data centre capacity. It raised more than US$1.5 billion in a November 2025 Series E led by TWG Global, reported at about US$6 billion, and was reported in 2026 to be in talks to raise at more than US$12 billion.
Timeline
- 2012: founded in San Francisco.
- 2017–2019: sells GPU workstations and servers to researchers.
- 2020: expands its GPU cloud.
- February 2024: raises US$320 million at US$1.5 billion.
- 2025: signs a large Microsoft agreement; raises more than US$1.5 billion.
- 2026: reported pre-IPO talks at more than US$12 billion.
The neocloud business
Neoclouds specialise in GPU computing for AI, offering capacity faster or more flexibly than hyperscalers during shortages. They borrow heavily to buy GPUs, secured by customer contracts, and lease data centre space and power. The model can grow revenue quickly, but it carries risk: GPUs depreciate as new generations launch, debt must be repaid, and if demand cools, prices for GPU rentals can fall. CoreWeave's public listing offered a benchmark for the sector.
Who uses Lambda
Lambda's customers include AI researchers, startups, universities, enterprises, AI labs and hyperscalers needing additional capacity.
Valuation context
Lambda's reported valuation rose from US$1.5 billion in early 2024 to about US$6 billion in late 2025, and reported talks suggest a further doubling. Our guide to AI infrastructure companies compares related firms.
Risks
- Debt and depreciation: GPU financing creates large obligations.
- Customer concentration: a few big contracts may dominate revenue.
- GPU pricing: rental prices can fall as supply increases.
- Nvidia dependence: supply and pricing depend on one vendor.
Questions for buyers
- Which GPU generations are available, and how soon?
- What are the prices for on-demand versus reserved capacity?
- What networking and storage come with large clusters?
- What support and uptime commitments apply?
From workstations to AI factories
Lambda's path from selling desktop workstations to building gigawatt-scale AI data centres shows how quickly the AI infrastructure market has changed. Early customers were individual researchers and small teams; today's largest customers sign contracts worth billions of dollars. That shift brings much larger revenue but also requires far more capital, data centre partnerships and power.
Latest developments (October 2026)
Lambda has been preparing for a listing. Bloomberg reported in August 2026 that it was in talks to raise up to US$3 billion at a valuation of US$12 billion or more ahead of an IPO that could come as soon as 2027, according to W.Media. It has reportedly hired Morgan Stanley, J.P. Morgan and Citi. Reports said revenue exceeded US$520 million in the year to September 2025 and was on track to top US$1.5 billion in 2026. See our AI cloud providers guide.
What to watch
Watch for an IPO filing, new funding at a confirmed valuation, large contracts and data centre expansion. Our guide to upcoming tech IPOs tracks potential listings.
Takeaways
AI teams can rent GPUs quickly at many scales. Founders can see how a long focus on AI developers paid off in the AI boom. Investors should watch debt, utilisation and customer concentration.
Sources
Every figure on this page comes from the public sources below. Where sources disagreed, we used the company's own announcement or a primary news report. Private-company data changes; check the date beside each figure.
Frequently asked questions
What does Lambda do?
Lambda is a ai infrastructure / gpu cloud company headquartered in San Francisco, California, United States. It was founded in 2012.
What is Lambda's valuation?
Lambda was valued at About US$6 billion (reported) as of November 2025, according to AI Weekly (citing Bloomberg). Private company valuations are set at funding rounds or share sales and can change significantly between them.
How much revenue does Lambda make?
Lambda is a private company and has not publicly disclosed its revenue. Figures on third-party sites are usually modelled estimates rather than numbers reported by the company.
What was Lambda's latest funding round?
The most recent financing we have verified is a series e in Nov 2025: More than US$1.5B, at a valuation of About US$6B (reported). Source: HPCwire.
Who are Lambda's investors?
Investors named in public announcements include TWG Global, US Innovative Technology Fund, Nvidia, Gradient Ventures and Crescent Cove.
Who founded Lambda?
Lambda was founded in 2012 by Stephen Balaban (CEO) and Michael Balaban.
Is Lambda a public company?
No. Lambda is a private company (private, venture backed), so its shares are not traded on a stock exchange and it isn't required to publish its financial results.
Where is Lambda headquartered?
Lambda is headquartered in San Francisco, California, United States.