514 AI Infrastructure SaaS Companies in 2026
AI infrastructure SaaS companies build what AI products run on: GPU clouds and inference platforms, model training and fine-tuning, vector databases, data labeling and MLOps tools.
- Companies
- 514
- In LeadWave's database, October 2026
- Total funding raised
- $26.6B
- Across 224 funded companies
- Median headcount
- 29
- Of 386 with a known headcount
- Median year founded
- 2017
- Of 404 with a known year
The largest AI Infrastructure SaaS companies
The top 30 of 514, strongest matches first, then by size. Headcount is the latest known figure.
| Company | Website | Employees | Headcount | Funding | CEO | |
|---|---|---|---|---|---|---|
1 LeaseWeb | leaseweb.com | 501–1,000 | — | — | Con Zwinkels | |
2 Scale AI | scale.com | 501–1,000 | 749 | $602.6M | Alexandr Wang | |
3 C3 AI | c3.ai | 501–1,000 | 739 | $228.5M | Thomas M. Siebel | |
4 Together AI | together.ai | 201–500 | 450 | $1.3B | Ce Zhang | |
5 SambaNova | sambanova.ai | 201–500 | 400 | $2.5B | Rodrigo Liang | |
6 Scaleway | scaleway.com | 201–500 | 357 | — | Damien Lucas | |
7 DriveNets | drivenets.com | 201–500 | — | — | Ido Susan | |
8 Telnyx | telnyx.com | 201–500 | 281 | $2.1M | David Casem | |
9 Surge AI | surgehq.ai | — | 267 | — | Edwin Chen | |
10 Multiverse Computing | multiversecomputing.com | 201–500 | 260 | $868.2M | Enrique Lizaso Olmos | |
11 poolside | poolside.ai | — | 255 | $626M | Jason Warner | |
12 backblaze | backblaze.com | 201–500 | 243 | $5.3M | Gleb Budman | |
13 Labelbox | labelbox.com | 51–200 | 141 | $78.9M | Brian Rieger | |
14 Daily | daily.co | — | 140 | — | Aleko Stroganov | |
15 Teleport | goteleport.com | 51–200 | 139 | $59.2M | Ev Kontsevoy | |
16 Envysion | envysion.com | 51–200 | 138 | $17.1M | — | |
17 Snorkel AI | snorkel.ai | 51–200 | 125 | $135.3M | Henry Ehrenberg | |
18 Research For Good | researchforgood.com | 51–200 | — | $502.5K | Baillie Buchanan | |
19 Anyscale | anyscale.com | 51–200 | — | — | Robert Nishihara | |
20 ByteBridge | bytebridge.io | 51–200 | — | — | Brian Hyeon-woo Cheong | |
21 Cinegy | cinegy.com | 51–200 | — | — | Jan Weigner | |
22 Hailo | hailo.ai | 51–200 | — | — | Orr Danon | |
23 Replicate | replicate.com | — | 49 | — | Zhizhen Zhang | |
24 BaseTen | baseten.co | 11–50 | 12 | Under $1M | Tuhin Srivastava | |
25 Weights & Biases | wandb.ai | — | — | — | — | |
26 Pinecone | pinecone.io | — | — | — | — | |
27 Groq | groq.com | — | — | — | — | — |
28 Lambda | lambdalabs.com | — | — | — | — | |
29 Nebius | nebius.com | — | — | — | — | |
30 Fireworks AI | fireworks.ai | — | — | — | — | — |
AI Infrastructure SaaS companies at a glance
- 58% are headquartered in United States, followed by United Kingdom.
- The largest is LeaseWeb, with 501–1,000 employees.
- 224 have disclosed funding, $26.6B in total; 43 raised $100M or more.
- Half were founded before 2017, and 27% in 2020 or later.
- United States271 · 58%
- United Kingdom28 · 6%
- Germany17 · 4%
- India17 · 4%
- France13 · 3%
- Israel12 · 3%
- 1–10136 · 30%
- 11–50165 · 37%
- 51–20097 · 21%
- 201–50029 · 6%
- 501–1,00011 · 2%
- 1,001–5,00012 · 3%
- 5,001–10,0002 · 0%
- 10,000+0 · 0%
- Before 20008 · 2%
- 2000–200937 · 9%
- 2010–201486 · 21%
- 2015–2019165 · 41%
- 2020–202274 · 18%
- 2023 or later34 · 8%
- Under $1M33 · 14%
- $1M–5M45 · 20%
- $5M–10M22 · 10%
- $10M–50M56 · 25%
- $50M–100M31 · 14%
- $100M–500M27 · 12%
- $500M–1B9 · 4%
- $1B+5 · 2%
How this list was built
A company is on this list if LeadWave tags it as AI infrastructure, inference or AI datasets, or its description or website presents infrastructure for building and running AI models.
The data comes from LeadWave's database of SaaS and AI companies, last updated in October 2026. Companies that share a website are counted once. Headcount, funding and CEO come from public sources, so some fields are blank for smaller companies.
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Frequently asked questions
LeadWave's database lists 514 AI Infrastructure SaaS companies as of October 2026. This page shows the 30 largest; the full list, with CEO contacts, is part of our 15,000+ SaaS companies list.
By headcount, LeaseWeb, with 501–1,000 employees, followed by Scale AI and C3 AI.
United States: 58% of those with a known headquarters, followed by United Kingdom at 6%.
SambaNova ($2.5B), Together AI ($1.3B) and Multiverse Computing ($868.2M), by total disclosed funding.
LeadWave's SaaS companies list covers 15,000+ companies and 16,000+ CEOs, with verified CEO emails, LinkedIn profiles, headcount and funding in one CSV. It's on the List of SaaS Companies page.
A service that runs trained AI models in production: you send a prompt or input to an API and get the model's answer back, while the platform handles the GPUs, scaling and latency.