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Series D AI Infrastructure Companies

Explore 14 ai infrastructure startups that raised series d funding. Access verified founder contact information and fundraising data.

Total Companies
14
Total Funding
$3.4B
Avg Funding
$240.8M
Cities
10

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Mountain View, United States

Lightmatter develops photonic chips that enable data processing and communication using light instead of electricity.

Sep 2025
Series D

Founder Contacts

41,000+ verified contacts

Oakland, United States
$200.0M
raised

LaunchDarkly is a feature management platform that allows software development teams to deliver to their customers.

Aug 2021
Series D

Founder Contacts

41,000+ verified contacts

Redwood City, United States
$1.5B
raised

Fireworks AI is an advanced platform that enables users to build, tune, and scale AI applications using open-source models

Jul 2026
Series D

Founder Contacts

41,000+ verified contacts

Helsinki, Finland
$210.0M
raised

Aiven is a technology-driven company that enables businesses to manage an open-source data infrastructure in the cloud.

May 2022
Series D

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$100.0M
raised

Redpanda is pioneering the agentic data plane — AI infrastructure to connect agents with enterprise data and systems simply and securely.

Apr 2025
Series D

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Irvine, United States

Syntiant is a deep learning tech company providing AI voice and sensor solutions.

Mar 2026
Series D

Founder Contacts

41,000+ verified contacts

Fort Lauderdale, United States
$106.0M
raised

Ubicquia provides smart streetlighting systems that enhance urban infrastructure through advanced technology and data-driven insights.

Feb 2026
Series D

Founder Contacts

41,000+ verified contacts

Chicago, United States
$104.0M
raised

zerohash makes it effortless to bring your business on-chain.

Sep 2025
Series D

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$110.0M
raised

Labelbox is the leading data factory for AI teams.

Jan 2022
Series D

Founder Contacts

41,000+ verified contacts

San Jose, United States
$50.0M
raised

Mezmo is an observability platform to manage and take action on your data.

Dec 2021
Series D

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Toronto, Canada
$693.0M
raised

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

Dec 2024
Series D

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$38.0M
raised

TestMu AI develops an AI-native software testing and quality engineering platform that supports automated testing.

Dec 2024
Series D

Founder Contacts

41,000+ verified contacts

San Jose, United States
$150.0M
raised

Astera Labs is a semiconductor company that provides connectivity solutions for intelligent systems.

Nov 2022
Series D

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$105.0M
raised

Netlify is the AI-native web development platform where agents and developers build together.

Nov 2021
Series D

Founder Contacts

41,000+ verified contacts

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