AI Infrastructure · New York City, India

Best AI Infrastructure Companies in New York City, United States

Updated 2026-06-21 · Ranked by funding & momentum

117 indexable AI Infrastructure companies headquartered in New York City, United States, ranked by total equity funding and recent funding momentum. Combined disclosed equity funding of $4.4B across 62 funded companies, including 4 unicorns.

117
Companies
$4.4B
Total Funding
62
Funded
4
Unicorns
3
Rounds (90d)

Ranked: Best AI Infrastructure companies in New York City

#CompanyFundingValuationStage Latest roundEmployeesFoundedMomentum
1 FluidStack
Provider of managed high performance computing clusters for artificial intelligence
$1B Series B Series B Jan 2026 3 2017 ↑ Active
2 ReflectionAI Unicorn
Developer of autonomous coding systems
$2.1B Series B Series B Oct 2025 2025 ↑ Active
3 ElevenLabs Unicorn
AI platform for speech, voice cloning, music, and AI agents
$101M $1B
as of 2024
Series D Series D Mar 2026 15 2022 ↑ Active
4 OpenRouter Unicorn
Platform offering access to LLM models
$60.1M Series B Series B May 2026 2023 ↑ Active
5 Modal Unicorn
Provider of serverless platform for developing and deploying AI applications
$23M Series C Series C May 2026 10 2021 ↑ Active
6 OpenGradient
Decentralized platform for scaling verifiable AI
$8.5M Seed Seed Apr 2026 2024 ↑ Active
7 Protege
Provider of platform that connects data holders and model builders
$10M Series A Series A Jan 2026 2024 ↑ Active
8 Daytona
Provider of secure and elastic infrastructure for running AI-generated code
$7M Series A Series A Feb 2026 2023 ↑ Active
9 Runlayer
Provider of a platform for managing and securing MCPs
$11M Seed Seed Nov 2025 2025 ↑ Active
10 Channel3
Developer of an API providing product data and monetization tools
$6M Seed Seed Dec 2025 2025 ↑ Active
11 Deeptune
Provider of simulation environments where AI agents practice complex digital work
$3.1M Series A Series A Jan 2026 2022 ↑ Active
12 Lightning
Provider of low code AI application development software
$77.2M Series C Series C Nov 2024 64 2017 ↑ Active
13 Emergence AI
Developer of an agentic platform for automating and scaling enterprise workflows
$197.2M Series C Series C Jun 2024 2018 ↑ Active
14 Vellum
Provider of a platform for building and deploying AI agent workflows
$5.1M Series A Series A Jul 2025 8 2023 ↑ Active
15 TollBit
Provider of AI bot monetization solutions for publishers
$31M Series A Series A Sep 2024 2023 ↑ Active
16 CiferAI
Developer of decentralized privacy-preserving AI infrastructure and collaborative learning platform
$650K Seed Seed Dec 2025 2023 ↑ Active
17 Everstar AI
Developer of artificial intelligence to accelerate nuclear power deployment
$8M Seed Seed Feb 2025 2024 ↑ Active
18 HoneyHive
Provider of a platform for AI observability, evaluation, and prompt management
$5.5M Seed Seed Apr 2025 4 2022 ↑ Active
19 PromptLayer
Providing tools for tracking, managing, and sharing GPT prompt engineering
$4.8M Seed Seed Feb 2025 3 2021 ↑ Active
20 Fraction AI
Platform offering machine learning training data
$6M Seed Seed Dec 2024 2023 ↑ Active
21 Scott AI
Developer of workspace software for engineering team alignment and specification design
$500K Seed Seed Sep 2025 2025 ↑ Active
22 Cornerstone
Developer of an AI assistant for cleaning healthcare data
$5M Series A Series A Oct 2024 11 2014 ↑ Active
23 Hume
Developer of text to speech and speech to speech application programming interfaces and software
$65.9M Series B Series B Oct 2023 24 2021
24 Modlee
Machine learning model platform
$670K Seed Seed May 2025 2023 ↑ Active
25 Patronus
Automated evaluation and security platform
$23.1M Series A Series A May 2024 2023
26 Phidata
Provider of framework for building AI Assistants with memory, knowledge, and tools
$5.4M Series A Series A Aug 2024 2014 ↑ Active
27 io.net
Decentralized GPU cloud platform for AI and machine learning workloads
$30M Series A Series A Mar 2024 11 2022
28 Adaptive ML
Cloud-based platform for building and testing large language models
$20M Seed Seed Mar 2024 2023
29 Clarifai
Provider of AI based image and video recognition solution for multiple industries
$101.2M Series C Series C Oct 2021 97 2013
30 Comet
AI and SaaS-based ML solutions
$63M Series B Series B Nov 2021 109 2017
31 SpinVox
Voice to Text service
$225M Acquired Aug 2009 78 2003
32 Oort
Provider of decentralized AI data collection, processing, and monetization services
$6.2M Seed ICO Jan 2024 36 2021
33 Memori
Developer of a memory fabric for enterprise artificial intelligence applications
$3.7M Seed Seed May 2024 2024
34 Arcus
Data integration platform
$4.5M Series A Aug 2023 2023
35 B12
Provider of AI-powered platform for website building and client management
$28.1M Series B Series B Mar 2021 20 2015
36 Rasgo
Provider of a data science platform
$25.1M Series A Series A Apr 2021 12 2020
37 Runhouse
Provider of infrastructure for developing, packaging, and deploying machine learning workloads
$4.9M Series A Series A Jun 2023 2022
38 Dragoneye
Computer vision-powered APIs for data extraction from images
$500K Seed Seed 2024 2023
39 TextIQ
Provider of artificial intelligence software for legal e-discovery and analysis
$16M Acqui-Hired Series A Jun 2019 90 2014
40 Spell
Provider of a MLOps platform for deep learning applications
$15M Acqui-Hired Series A Jan 2019 80 2017
41 AI.Reverie
Platform for computer vision based AI model training and testing
$10M Acqui-Hired Series A Apr 2020 36 2017
42 Beam
Provider of AI and cloud-based solutions to develop GPU, API, and ML models
$3.6M Seed Seed May 2022 6 2021
43 EZKL
Developer of audited library for verifiable artificial intelligence model integrity
$250K Seed Seed 2024 2022
44 Graphen
Developing AI-enabled and graph based platform for multiple industrial use cases
$7.1M Series A Series A Apr 2018 33 2017
45 ID R&D
Provider of biometric authentication and anti-spoofing software development kits
$5.7M Acquired Series A May 2019 55 2016
46 Lytix
Product alerting, analytics, and error triaging solutions for teams building on LLMs
$125K Seed Seed 2024 2024
47 Kepler
Provider of the trust layer that enables AI to operate in high-stakes and regulated environments
$7.2M Seed Seed 2025
48 Kobalt Labs
Data privacy platform offering usage of generative AI on sensitive data
$500K Seed Seed 2023 2023
49 Epsilla
Provider of no-code platform building vertical AI agents
$500K Seed Seed Jun 2023 2023
50 Converseon
Provider of market intelligence, social business and machine learning
$5M Series A Series A Aug 2017 45 2001

Top 12 AI Infrastructure companies in New York City

#1
FluidStack Series B
$1B Raised
expand_more
location_onNew York City, New York
Founded
2017
Employees
3
Funding raised
$1B
Stage
Series B

Provider of managed high performance computing clusters for artificial intelligence. These infrastructure resources facilitate large scale model training and inference tasks. The hardware is isolated at the network and storage levels to ensure dedicated access for computational workloads. Engineering support maintains the systems to ensure operational availability for technical teams.

Funding rounds (3 disclosed of 3)
Round Date Amount
Series B Jan 2026 $842.5M
Series A Feb 2025 $200M
Seed Feb 2019 $3M
Tech stack
apple icloud mailcloudflarecloudflare bot managementdocusignframer sitesgoogle analytics+14
#2
ReflectionAI Unicorn Series B
$2.1B Raised
expand_more
location_onNew York City, New York
Founded
2025
Funding raised
$2.1B
Stage
Series B

Developer of autonomous coding systems. It utilizes artificial intelligence and reinforcement learning to build tools that automate coding tasks. The platform provides a coding agent API that helps automate rote engineering work. It integrates with organizations codebase and engineering workflows to streamline development tasks. It leverages reinforcement learning and large language models to create AI systems that h

Funding rounds (3 disclosed of 3)
Round Date Amount
Series B Oct 2025 $2B
Series A Mar 2025 $105M
Seed Mar 2025 $25M
Tech stack
apple icloud mailgodaddygoogle tag managergoogle workspacehstshubspot+10
#3
ElevenLabs Unicorn Series D
$101M Raised
expand_more
location_onNew York City, New York
Founded
2022
Employees
15
Funding raised
$101M
Valuation
$1B · 2024
Stage
Series D

AI platform for speech, voice cloning, music, and AI agents. It provides tools for creating realistic speech, converting text to natural-sounding audio, cloning voices, generating music and sound effects, and building conversational AI agents. It serves developers, enterprises, and creators through APIs and integrated products designed for applications such as content production, customer support automation, media lo

Funding rounds (7 disclosed of 8)
Round Date Amount
Series D Mar 2026 $20M
Series D Feb 2026 $500M
Series C Sep 2025 $10M
Series C Jun 2025 Undisclosed
Series C Jan 2025 $180M
Series B Jan 2024 $80M
2 earlier rounds — sign up free
Tech stack
alpine.jsamazon s3amazon web servicesapple icloud mailbase uicloudflare+14
#4
OpenRouter Unicorn Series B
$60.1M Raised
expand_more
location_onNew York City, New York
Founded
2023
Funding raised
$60.1M
Stage
Series B

Platform offering access to LLM models. It offers access to solutions including GPT-4 32K and Google PaLM, for developers to use in their AI models. The platform offers API keys for authentication and allows for batch calling of Chat Completion.

Funding rounds (2 disclosed of 2)
Round Date Amount
Series A Jun 2025 $47.6M
Seed Jun 2025 $12.5M
Tech stack
algoliaamazon sesamazon web servicesapple icloud mailbase uiclerk+14
#5
Modal Unicorn Series C
$23M Raised
expand_more
location_onNew York City, New York
Founded
2021
Employees
10
Funding raised
$23M
Stage
Series C

Provider of serverless platform for developing and deploying AI applications. The platform offers tools for scaling machine learning inference, data processing, and other compute-intensive tasks. It provides features such as autoscaling, container management, and integration with cloud storage solutions. The platform supports various use cases, including generative AI, fine-tuning, and batch processing.

Funding rounds (4 disclosed of 4)
Round Date Amount
Series C May 2026 $355M
Series B Jul 2025 $87M
Series A Jun 2023 $16.5M
Seed 2022 $7M
Tech stack
amazon cloudfrontamazon sesamazon web servicescloudflarecloudflare bot managementexpress+14
#6
$8.5M Raised
expand_more
location_onNew York City, New York
Founded
2024
Funding raised
$8.5M
Stage
Seed

Decentralized platform for scaling verifiable AI. The company offers a full-stack solution, including an application layer with a web interface for model hosting, developer tooling for model deployment management, and an execution layer with smart contracts supporting AI inferencing. The platform utilizes a blockchain with a heterogeneous AI compute architecture. It enables developers to leverage open-source models a

Funding rounds (1 disclosed of 2)
Round Date Amount
Seed Apr 2026 Undisclosed
Seed Oct 2024 $8.5M
Founders & key people
Tech stack
amazon cloudfrontamazon s3amazon web servicesbase uiemotionfastly+14
#7
Protege Series A
$10M Raised
expand_more
location_onNew York City, New York
Founded
2024
Funding raised
$10M
Stage
Series A

Provider of platform that connects data holders and model builders. It enables the safe and secure sharing of training data for artificial intelligence (AI) models, empowering data-driven innovation.

Funding rounds (3 disclosed of 3)
Round Date Amount
Series A Jan 2026 $30M
Series A Aug 2025 $25M
Seed Sep 2024 $10M
Tech stack
amazon s3amazon web servicesapple icloud mailcloudflarecloudflare bot managementcookiebot+14
#8
Daytona Series A
$7M Raised
expand_more
location_onNew York City, New York
Founded
2023
Funding raised
$7M
Stage
Series A

Provider of secure and elastic infrastructure for running AI-generated code. It offers isolated environments for executing code, file system operations, and Git integration. The platform supports programmatic control, language server features, and real-time analysis. It facilitates AI evaluations, code interpretation, and coding agents.

Funding rounds (3 disclosed of 3)
Round Date Amount
Series A Feb 2026 $24M
Seed Jun 2024 $5M
Seed Nov 2023 $2M
Tech stack
amazon cloudfrontamazon sesamazon web servicesframer sitesgoogle analyticsgoogle font api+8
#9
Runlayer Seed
$11M Raised
expand_more
location_onNew York City, New York
Founded
2025
Funding raised
$11M
Stage
Seed

Provider of a platform for managing and securing model context protocols. The platform offers tools for connecting artificial intelligence to enterprise systems. It features threat detection, permission management, and observability for artificial intelligence deployments. The platform enables teams to share building blocks securely. It provides visibility into usage, tracking user behavior, and maintaining a private

Funding rounds (1 disclosed of 1)
Round Date Amount
Seed Nov 2025 $11M
Tech stack
amazon web servicesapple icloud mailcloudflarecloudflare bot managementcore-jsfacebook pixel+14
#10
Channel3 Seed
$6M Raised
expand_more
location_onNew York City, New York
Founded
2025
Funding raised
$6M
Stage
Seed

Developer of an API providing product data and monetization tools. The API allows users to find products across the internet. It also provides tools for earning revenue on sales. The platform offers image search and price tracking functionalities.

Funding rounds (1 disclosed of 1)
Round Date Amount
Seed Dec 2025 $6M
#11
Deeptune Series A
$3.1M Raised
expand_more
location_onNew York City, New York
Founded
2022
Funding raised
$3.1M
Stage
Series A

Provider of simulation environments where AI agents practice complex digital work. The company builds high-fidelity virtual environments that replicate real software workflows, allowing AI agents to learn tasks such as operating enterprise applications, handling multistep processes, and performing role-specific activities through trial and error. Its infrastructure enables reinforcement learning at scale, giving rese

Funding rounds (2 disclosed of 2)
Round Date Amount
Series A Jan 2026 $43M
Seed Mar 2023 $3.1M
Founders & key people
Tech stack
fastlygithub pagesgoogle analyticsgoogle workspaceopen graphvarnish
#12
Lightning Series C
$77.2M Raised
expand_more
location_onNew York City, New York
Founded
2017
Employees
64
Funding raised
$77.2M
Stage
Series C

Provider of low code AI application development software. The platform offers solutions to build multi-cloud AI and ML applications. It also offers different components that can be integrated into the application.

Funding rounds (4 disclosed of 4)
Round Date Amount
Series C Nov 2024 $50M
Series B Jun 2022 $40M
Series A Oct 2020 $18.6M
Series A 2020 $18.6M
Tech stack
apple icloud mailcloudflarecloudflare bot managementcloudflare browser insightsemotiongoogle analytics+14

Recent signals in New York City AI Infrastructure

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Funding & investor landscape

Total raised
$4.4B
across these companies
Companies funded
62
with disclosed funding
Highest-funded
$2.1B raised

Most active investors

Y Combinator Y Combinator 9 investments in AI Infrastructure SV Angel SV Angel 5 investments in AI Infrastructure Andreessen Horowitz Andreessen Horowitz 4 investments in AI Infrastructure Lightspeed Venture Partners Lightspeed Venture Partners 4 investments in AI Infrastructure Zero Prime Ventures Zero Prime Ventures 4 investments in AI Infrastructure AIX Ventures AIX Ventures 3 investments in AI Infrastructure Databricks Databricks 3 investments in AI Infrastructure Foresight Ventures Foresight Ventures 3 investments in AI Infrastructure Menlo Ventures Menlo Ventures 3 investments in AI Infrastructure NVentures NVentures 3 investments in AI Infrastructure Sequoia Capital Sequoia Capital 3 investments in AI Infrastructure Techstars Techstars 3 investments in AI Infrastructure

Notable founders in New York City AI Infrastructure

DF Daniel Fedder Co-Founder FluidStack · $1B raised
PW Peixian Wu Co-Founder FluidStack · $1B raised
CM Cesar Maklary Co-Founder FluidStack · $1B raised
Gary Wu Gary Wu Co-Founder FluidStack · $1B raised
Jamie Cox Jamie Cox Co-Founder & Chief Stategy Officer FluidStack · $1B raised
Misha Laskin Misha Laskin Co-Founder & CEO ReflectionAI · $2.1B raised
IA Ioannis Antonoglou Co-Founder & CTO ReflectionAI · $2.1B raised
MS Mati Staniszewski Co-Founder & CEO ElevenLabs · $101M raised
PD Piotr Dabkowski Co-Founder & CTO ElevenLabs · $101M raised
Chris Clark Chris Clark Co-Founder & COO OpenRouter · $60.1M raised
LV Louis Vichy Co-Founder OpenRouter · $60.1M raised
Alex Atallah Alex Atallah Co-Founder & CEO OpenRouter · $60.1M raised

Frequently asked questions

How many AI Infrastructure companies are there in New York City, United States?
Radar tracks 117 indexable AI Infrastructure companies headquartered in New York City, United States that meet our profile-completeness bar.
What is the total funding raised by AI Infrastructure companies in New York City, United States?
The AI Infrastructure companies in New York City, United States on this list have raised a combined $4.4B in disclosed equity funding across 62 funded companies.
Which is the highest-funded AI Infrastructure company in New York City, United States?
ReflectionAI is the highest-funded AI Infrastructure company in New York City, United States, with $2.1B in disclosed equity funding.
How many AI Infrastructure companies in New York City, United States are funded?
62 of the 117 AI Infrastructure companies in New York City, United States on this list have disclosed at least one equity funding round.
How many AI Infrastructure unicorns are there in New York City, United States?
4 AI Infrastructure companies in New York City, United States on this list are valued at $1B or more.
Who are the top investors in New York City, United States AI Infrastructure companies?
The most active investors in New York City, United States AI Infrastructure companies on this list include Y Combinator, SV Angel, Andreessen Horowitz, Lightspeed Venture Partners, Zero Prime Ventures.

Rankings are computed by Radar (Fliar BI) from the Radar company master and are updated periodically. Funding and momentum scores use disclosed equity-funding data only. Figures may lag private rounds. Last updated 2026-06-21.

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