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AI Infrastructure Startups

Updated August 2026

AI infrastructure startups building the foundation models, GPU clouds, inference platforms, vector databases, and orchestration layers that power modern AI applications. These companies sit between hyperscalers and AI product teams.

Explore 623 recently funded ai infrastructure companies with verified founder contact information and fundraising data.

Total Companies
623
Total Funding
$2.0B
Avg Funding
$80.9M
Global Reach
5
countries

Top Cities for AI Infrastructure

Peterborough
Seattle
San Jose
New York
Austin
Toronto

Recently Funded Companies

Export
Peterborough, United Kingdom

7Spire builds causal AI and reinforcement-learning tools for operational decision intelligence.

$5.0M raised
Dec 2025

Founder Contacts

41,000+ verified contacts

Seattle, United States

Software for robotic, smart sensing, and Edge-AI applications

$232K raised
Dec 2025

Founder Contacts

41,000+ verified contacts

San Jose, United States

LiveKit provides a cloud platform that enables developers to build, deploy, and manage real-time communication and AI-driven applications.

$100.0M raised
Jan 2026

Founder Contacts

41,000+ verified contacts

New York, United States

Fluidstack provides cloud infrastructure for AI with GPU clusters, orchestration, and monitoring for intensive workloads.

$842.5M raised
Jan 2026

Founder Contacts

41,000+ verified contacts

Austin, United States

Neurophos develops photonic AI processing technology that focuses on hardware solutions for accelerating artificial intelligence inference.

$110.0M raised
Jan 2026

Founder Contacts

41,000+ verified contacts

San Jose, United States

Axiado is a security processor company redefining hardware root of trust with hardware-based security technologies, including per-system AI.

$100.0M raised
Dec 2025

Founder Contacts

41,000+ verified contacts

Toronto, Canada

Tenstorrent develops AI hardware and software solutions for data processing and machine learning application.

$693.0M raised
Dec 2024

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Lemma offers an AI platform that automates prompt optimization and continuous learning for model improvement.

$500K raised
Dec 2025

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Castari is a software development company that build, deploy, and scale sandboxed AI agents.

$500K raised
Dec 2025

Founder Contacts

41,000+ verified contacts

New York, United States

DAWN Internet builds a decentralized, user-owned broadband network that lets people share and earn from local internet connectivity.

$13.0M raised
Dec 2025

Founder Contacts

41,000+ verified contacts

London, United Kingdom

3Square is an AI tech company providing core decision intelligence infrastructure for next-generation AI-native enterprises.

$281K raised
Dec 2025

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Hyperspell is your Company Brain. Connects your tools, builds a context graph, and surfaces it as an updating filesystem any agent can read.

Dec 2025

Founder Contacts

41,000+ verified contacts

Vilnius, Lithuania

Repsense is a data company that mimics user journeys and predicts reactions to content found in search results pages.

$2.3M raised
Dec 2025

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Valerie Health is the AI front office for independent provider groups to modernize patient and provider communication interfaces,

$30.0M raised
Dec 2025

Founder Contacts

41,000+ verified contacts

New York, United States

Prequel.dev is a software company that provides a community platform for real-time application problem detection and reliability management.

$3.3M raised
Dec 2024

Founder Contacts

41,000+ verified contacts

Berkeley, United States

Hardware Accelerated Rack Scale AI Agent Runtime

$500K raised
Dec 2025

Founder Contacts

41,000+ verified contacts

Singapore, Singapore

CloudVerse AI provides automated multi-cloud cost optimization, tagging governance, and FinOps intelligence for AWS, Azure, GCP, and OCI

$1.0M raised
Dec 2024

Founder Contacts

41,000+ verified contacts

San Francisco, United States

RadixArk focuses on developing infrastructure for AI inference and training systems.

$100.0M raised
Jan 2026

Founder Contacts

41,000+ verified contacts

London, United Kingdom

AI RFQ Automation for Industrial Manufacturers

$1.2M raised
Jan 2026

Founder Contacts

41,000+ verified contacts

Edinburgh, United Kingdom

SynapseDx is an AI driven company that offers infrastructure for organizations to safely deploy AI at scale.

$400K raised
Jan 2026

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Ando is an AI-native workforce infrastructure for predictive demand and intelligent workforce allocation.

$4.0M raised
Dec 2025

Founder Contacts

41,000+ verified contacts

New York, United States

Private AI digital twins that preserve memory, voice, and identity—helping people connect and pass meaning across generations.

$300K raised
Dec 2025

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Real-time AI for sales teams

$1.1M raised
Dec 2025

Founder Contacts

41,000+ verified contacts

Singapore, Singapore

AI Infrastructure, Data Monitoring, Trading Automation

$2.2M raised
Dec 2024

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Datatron provides a SuperBowl-proven MLOps platform for all AI/ML models in production.

$12.1M raised
Jan 2022

Founder Contacts

41,000+ verified contacts

Showing 501 to 525 of 623 companies

About the AI Infrastructure Startup Ecosystem

The ai infrastructure sector is an active area of startup innovation and venture capital investment. Companies in this space are developing new technologies, platforms, and services that address evolving market needs and create new business opportunities.

Funding Trends in AI Infrastructure

AI Infrastructure companies raise capital across various funding stages, from early seed rounds to late-stage growth financing. Investor interest in this sector is driven by the size of the addressable market, the pace of technology adoption, and the potential for scalable business models.

Growth Outlook

The ai infrastructure sector is expected to continue evolving as technology advances, market dynamics shift, and new opportunities emerge. Companies that demonstrate strong product-market fit, efficient growth, and clear competitive advantages are well-positioned to attract continued investment.

AI Infrastructure Funding Breakdown

Here is how funding is distributed among the 623 ai infrastructure companies tracked in the VCBacked database.

Average Funding
$80.9M
Total Funding Tracked
$2.0B
Countries Represented
5

Distribution by Funding Stage

Other25 companies

Top Cities for AI Infrastructure

1.San Francisco
7 companies$147.1M
2.New York
4 companies$859.1M
3.London
3 companies$2.6M
4.San Jose
2 companies$200.0M
5.Singapore
2 companies$3.2M

Related Industries

Companies in the ai infrastructure sector often overlap with or complement businesses in adjacent industries. Exploring related verticals can help you discover additional companies, identify partnership opportunities, and understand the broader competitive landscape.

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