50 Best AI Infrastructure Companies to Watch in 2026

The most prominent ai infrastructure companies ranked by global prominence, funding activity, and market position. Showing the top 50 out of 315 companies tracked on Fsome.

315
Total Companies
$146.0B
Total Funding
$463.4M
Avg Funding
San Francisco
Top Location
# Company Location Employees Total Funding Last Round Last Funded
1
CoreWeave
CoreWeave is a cloud-based AI infrastructure company offering GPU cloud services…
Livingston $32.4B Post Ipo Debt 2026-03-31
2
NVIDIA
NVIDIA is a computing platform company operating at the intersection of graphics…
Santa Clara $4.1B Grant 2023-05-09
3
Baseten
Baseten is an AI infrastructure company that integrates machine learning into bu…
San Francisco 101 - 250 $585.0M Series Unknown 2026-01-20
4
VAST Data
VAST Data offers a unified data platform that integrates storage, database, and …
New York 501 - 1K $1.4B Secondary Market 2026-03-09
5
Rigetti Computing
Rigetti Computing is a quantum computing company that builds and deploys full-st…
Berkeley 101 - 250 $783.5M Post Ipo Equity 2025-06-11
6
Celestial AI
Celestial AI develops an optical interconnect technology platform for data cente…
Santa Clara 101 - 250 $593.9M Series C 2025-03-11
7
Lambda
Lambda is a cloud-based platform that provides high-performance GPU hardware and…
San Jose 501 - 1K $3.2B Series E 2025-11-18
8
Fal
Fal is a generative media platform that helps developers create applications usi…
San Francisco 101 - 250 $337.5M Series D 2025-12-09
9
Nscale
Nscale provides a full-stack AI cloud platform designed for enterprise-scale wor…
London 101 - 250 $5.1B Series C 2026-03-09
10
humans&
humans& operates as a frontier artificial intelligence research and product lab …
Redwood City 11 - 50 $480.0M Seed 2026-01-20
11
Nebius
Nebius Group offers AI services as well as infrastructure.
Amsterdam 1K - 5K $9.9B Post Ipo Debt 2026-03-18
12
Etched.ai
Etched.ai is an AI chip startup that develops Sohu, a chip designed specifically…
Cupertino 101 - 250 $625.4M Series Unknown 2026-01-14
13
Groq
Groq provides a platform and hardware infrastructure designed for AI inference w…
San Jose 251 - 500 $1.8B Series E 2025-09-17
14
Biren Technology
Biren Technology is an AI chip startup that develops intelligent processors for …
Minhang 101 - 250 $785.2M Series Unknown 2025-06-26
15
Pinecone
Pinecone develops a vector database that makes it easy to connect company data w…
New York 101 - 250 $138.0M Secondary Market 2023-11-01
16
Ayar Labs
Ayar Labs develops optical I/O solutions for large-scale AI workloads to acceler…
San Jose 101 - 250 $874.6M Series E 2026-02-28
17
Azimuth AI
Azimuth AI is an embedded silicon product company that offers highly differentia…
Folsom 11 - 50 $18.8M Series Unknown 2026-01-05
18
Moore Threads
Moore Threads providing graphics processing unit technology and services to corp…
Haidian 501 - 1K $528.7M Undisclosed 2025-11-26
19
FuriosaAI
FuriosaAI designs and develops data center accelerators for the most advanced AI…
Seoul 101 - 250 $266.4M Series C 2025-07-22
20
d-Matrix
D-Matrix is a platform that enables data centers to handle large-scale generativ…
Santa Clara 251 - 500 $429.0M Series C 2025-11-12
21
TestMu AI
World’s first full-stack Agentic AI Quality Engineering platform.
San Francisco 251 - 500 $108.0M Series D 2024-12-10
22
Scale
Scale AI provides a data-oriented platform that assists in the development of AI…
San Francisco 1K - 5K $15.9B Corporate Round 2025-06-10
23
Cerebras Systems
Cerebras Systems is an AI computing system company that provides deep learning a…
Sunnyvale 501 - 1K $2.8B Debt Financing 2026-04-15
24
Mythic
Mythic develops analog matrix processors and key cards based on analog compute-i…
Austin 11 - 50 $289.6M Series Unknown 2025-12-17
25
Zilliz
The company behind the Milvus open-source vector database
Redwood City 101 - 250 $113.0M Series B 2022-08-24
26
Crusoe
Crusoe is a vertically integrated AI infrastructure company that builds and oper…
Denver 1K - 5K $4.2B Debt Financing 2026-02-20
27
DataDirect Networks
DataDirect Networks provides AI data storage and management solutions for enterp…
Chatsworth 501 - 1K $309.9M Private Equity 2025-01-09
28
Arthur
Arthur is a platform that monitors, measures, and improves the performance of ma…
New York 11 - 50 $60.3M Series B 2022-06-30
29
Together AI
Together AI is a cloud-based platform designed for constructing open-source gene…
San Francisco 101 - 250 $533.5M Series B 2025-02-20
30
Syntiant
Syntiant is a deep learning tech company providing AI voice and sensor solutions…
Irvine 1K - 5K $106.4M Series D 2024-12-28
31
Hailo
Hailo develops AI processors specifically designed to enable AI tasks on the edg…
Tel Aviv 101 - 250 $343.9M Series C 2024-04-02
32
Arize AI
Arize is an AI engineering platform focused on evaluation and observability. It …
Berkeley 101 - 250 $131.0M Series C 2025-02-20
33
Hammerspace
Hammerspace is a data platform that obliterates data access delays for AI and hi…
San Mateo 101 - 250 $156.7M Corporate Round 2026-02-23
34
SiMa.ai
SiMa.ai is a developer of machine learning technology to deliver a software-cent…
San Jose 101 - 250 $355.0M Corporate Round 2026-04-08
35
Rebellions
Rebellions develops AI accelerator chips and data center systems designed for ef…
Seongnam 251 - 500 $857.7M Series Unknown 2026-03-30
36
Poolside
Poolside is an artificial intelligence platform that offers foundation concepts …
San Francisco 101 - 250 $626.0M Series B 2024-10-02
37
TensorWave
TensorWave is an AMD GPU exclusive Cloud that supports training and inference at…
Las Vegas 51 - 100 $146.7M Series A 2025-05-14
38
WEKA
WEKA is a global data platform company that delivers a cloud-native, software-ba…
Campbell 251 - 500 $415.1M Series E 2024-05-15
39
TrueFoundry
TrueFoundry is a unified platform with an enterprise-grade AI Gateway - combinin…
San Francisco 11 - 50 $21.3M Series A 2025-02-06
40
Redpanda Data
Redpanda is pioneering the agentic data plane ’ AI infrastructure to connect age…
San Francisco 101 - 250 $265.5M Series D 2025-04-03
41
Axiado Corporation Inc
Axiado is a security processor company redefining hardware root of trust with ha…
San Jose 101 - 250 $205.0M Series C 2025-12-02
42
Nebius AI
Nebius AI is an AI cloud infrastructure company that provides full-stack computi…
Amsterdam 501 - 1K $1.0B Debt Financing 2025-06-04
43
Anyscale
Anyscale accelerates the development and productionization of any AI app, on any…
San Francisco 101 - 250 $259.6M Series C 2022-08-23
44
Replicate
Replicate provides a platform for open source machine learning models that enabl…
San Francisco 11 - 50 $57.8M Series B 2023-12-05
45
Runpod
Runpod is a cloud platform designed for GPUs, enabling developers to deploy cust…
Mount Laurel 51 - 100 $22.0M Seed 2024-05-08
46
Intel
Intel designs, manufactures and sells computer components and related products f…
Santa Clara c 10001 max $30.0B Post Ipo Equity 2025-09-15
47
MetaX
MetaX is a integrated circuit design company.
Shanghai 501 - 1K $347.2M Series B 2022-07-05
48
Domino Data Lab
Domino Data Lab provides an enterprise platform designed to help organizations b…
San Francisco 251 - 500 $223.6M Series Unknown 2025-08-21
49
Fractile
Fractile is building chips that remove every bottleneck to running large languag…
London 11 - 50 $43.8M Series Unknown 2026-01-15
50
Weaviate
Weaviate powers semantic search, RAG, and intelligent agents in one AI-native ve…
Amsterdam 51 - 100 $67.7M Series B 2023-04-20