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Series B AI Infrastructure Companies

Explore 46 ai infrastructure startups that raised series b funding. Access verified founder contact information and fundraising data.

Total Companies
46
Total Funding
$2.2B
Avg Funding
$88.2M
Cities
18

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New York, United States
$42.0M
raised

Arthur is a platform that monitors, measures, and improves the performance of machine learning models.

Sep 2022
Series B

Founder Contacts

41,000+ verified contacts

Santa Clara, United States
$34.7M
raised

Kinara develops low-power, energy-efficient, and programmable discrete neural processing units to deploy edge AI applications.

Sep 2021
Series B

Founder Contacts

41,000+ verified contacts

Redwood City, United States
$60.0M
raised

The company behind the Milvus open-source vector database

Aug 2022
Series B

Founder Contacts

41,000+ verified contacts

Santa Clara, United States

Primemas is a semiconductor startup specializing in developing cost-effective, high-performance hub chiplets called Hublets.

Aug 2024
Series B

Founder Contacts

41,000+ verified contacts

Toronto, Canada
$65.0M
raised

Ollama is a software firm that develops local inference platform designed to run large language models.

Jul 2026
Series B

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Toronto, Canada
$125.0M
raised

Untether AI develops AI chips to enable new frontiers in AI applications.

Jul 2021
Series B

Founder Contacts

41,000+ verified contacts

San Jose, United States
$75.0M
raised

DreamBig Semiconductor provides Chiplet platform with SMARTNIC/DPU solutions for AI, data centers and storage acceleration.

Jul 2024
Series B

Founder Contacts

41,000+ verified contacts

Hong Kong, Hong Kong
$14.7M
raised

SeaArt is an AI platform for generating and editing images, videos, audio, and AI character chats through text and image prompts.

Jul 2026
Series B

Founder Contacts

41,000+ verified contacts

Jersey City, United States
$100.0M
raised

Lyzr is an enterprise software company that offers AI porwered agent framework to build multi-agent workflows.

Jul 2026
Series B

Founder Contacts

41,000+ verified contacts

New City, United States
$60.0M
raised

PointFive is an AI efficiency OS for FinOps, platform, and engineering teams that focuses on deep waste detection and auditable remediation.

Jun 2026
Series B

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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New York, United States
$40.0M
raised

Allium provides blockchain data infrastructure for institutions and crypto-focused organizations.

Jun 2026
Series B

Founder Contacts

41,000+ verified contacts

Singapore, Singapore
$295.8M
raised

SiliconFlow develops cloud-based platforms and tools for deploying and operating large language models and multimodal AI systems.

Jun 2026
Series B

Founder Contacts

41,000+ verified contacts

Perth, Australia
$10.0M
raised

Radian Arc develops GPU infrastructure solutions that provide high-performance computing for AI, gaming, and enterprise applications.

Jun 2024
Series B

Founder Contacts

41,000+ verified contacts

Las Vegas, United States
$350.0M
raised

TensorWave is an AMD-exclusive cloud platform that leverages AMD Instinct GPUs and ROCm for high-performance AI workloads.

Jun 2026
Series B

Founder Contacts

41,000+ verified contacts

Belmont, United States
$9.2M
raised

Lumilens creates photonics products designed for high-performance computing.

May 2025
Series B

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Palo Alto, United States
$107.0M
raised

DeepInfra provides machine-learning models and infrastructure designed for deep-learning applications.

May 2026
Series B

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$30.0M
raised

Power AI with all your data. Turn your enterprise data, assets, and services into AI-powered outcomes seamlessly and securely.

May 2022
Series B

Founder Contacts

41,000+ verified contacts

London, United Kingdom
$49.7M
raised

Orbital Industries is an AI-first industrial company that designs, manufactures, and ships physical products using frontier AI technology.

May 2026
Series B

Founder Contacts

41,000+ verified contacts

London, United Kingdom
$220.0M
raised

Fractile develops semiconductor hardware and AI inference systems for large language model processing.

May 2026
Series B

Founder Contacts

41,000+ verified contacts

San Carlos, United States
$275.0M
raised

Cowboy Space is a space technology company developing solar-powered orbital data centers for AI computing infrastructure.

May 2026
Series B

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Bellevue, United States
$6.7M
raised

MangoBoost architects next-generation AI infrastructure for the agentic AI era

Apr 2026
Series B

Founder Contacts

41,000+ verified contacts

New York, United States
$50.0M
raised

AI for our most pressing crises in silicon.

Mar 2026
Series B

Founder Contacts

41,000+ verified contacts

New York, United States
$110.0M
raised

Dash0 is an OpenTelemetry-native observability platform for collecting, transmitting, and analyzing distributed system data.

Mar 2026
Series B

Founder Contacts

41,000+ verified contacts

Redwood City, United States
$25.0M
raised

TruEra provides AI quality management solutions that test, optimize, and monitor machine learning models.

Mar 2022
Series B

Founder Contacts

41,000+ verified contacts

Berlin, Germany
$50.0M
raised

Qdrant is an open-source vector search engine and database for next-generation AI applications.

Mar 2026
Series B

Founder Contacts

41,000+ verified contacts

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