78 indexable AI Infrastructure companies headquartered in Palo Alto, United States, ranked by total equity funding and recent funding momentum. Combined disclosed equity funding of $3.7B across 40 funded companies, including 5 unicorns.
| # | Company | Funding | Valuation | Stage | Latest round | Employees | Founded | Momentum |
|---|---|---|---|---|---|---|---|---|
| 1 |
SambaNova Systems
Unicorn Provider of AI-powered software and hardware |
$1.1B | $5B as of 2021 |
Series E | Series E Feb 2026 | 497 | 2017 | ↑ Active |
| 2 |
Parallel Web Systems
Unicorn Developer of an API providing web search for AI applications |
$230M | — | Series B | Series B Apr 2026 | — | 2023 | ↑ Active |
| 3 |
Ricursive
Developer of self-improving artificial intelligence systems focused on chip design |
$335M | — | Series A | Series A Jan 2026 | — | 2025 | ↑ Active |
| 4 |
SSI
Unicorn Platform offering security solutions for AI models |
$1B | $5B as of 2024 |
Series A | Series A Jul 2025 | — | 2024 | ↑ Active |
| 5 |
Sycamore
Developer of an operating system for building and deploying AI agents |
$65M | — | Seed | Seed Mar 2026 | — | 2017 | ↑ Active |
| 6 |
Elorian
Developer of artificial intelligence models for visual reasoning and perception |
$55M | — | Seed | Seed Apr 2026 | — | 2026 | ↑ Active |
| 7 |
Fiddler Labs
Developer of AI observability platform for monitoring, explainability, and responsible AI |
$65.6M | — | Series C | Series C Jan 2026 | 43 | 2018 | ↑ Active |
| 8 |
Harmonic
Unicorn Developer of state-of-the-art mathematics AI models |
$75M | — | Series C | Series C Nov 2025 | — | 2023 | ↑ Active |
| 9 |
Snorkel AI
Unicorn AI development processes offering programmatic solutions |
$138.3M | $1B as of 2021 |
Series D | Series D Aug 2025 | 76 | 2015 | ↑ Active |
| 10 |
Deep Infra
Provider of machine learning models and infrastructure for deep learning models |
$8M | — | Series B | Series B May 2026 | 3 | 2022 | ↑ Active |
| 11 |
Inception Labs
Developer of unified framework for generative AI platform |
$50M | — | Seed | Seed Nov 2025 | — | 2024 | ↑ Active |
| 12 |
Archetype AI
Platform developing physical AI |
$13M | — | Series A | Series A Nov 2025 | — | 2023 | ↑ Active |
| 13 |
Lilt
Provider of cloud-based machine translation tools and services |
$93.1M | — | Series C | Series C Nov 2024 | 59 | 2015 | ↑ Active |
| 14 |
Fastino
Provider of task-specific language models for developer workflows |
$30.6M | — | Seed | Seed May 2025 | — | 2024 | ↑ Active |
| 15 |
Credo
AI governance platform and advisory services |
$41.3M | — | Series B | Series B Jul 2024 | 27 | 2020 | ↑ Active |
| 16 |
PlayAI
Provider of AI voice generator |
$21.5M | — | Acquired | Seed Nov 2024 | — | 2019 | ↑ Active |
| 17 |
Voyage AI
AI powered embedding models and rerankers for search and retrieval |
$28M | — | Acquired | Series A Oct 2024 | — | 2023 | ↑ Active |
| 18 |
Argmax
Developer of on-device software development kits for foundation model deployment |
$8M | — | Seed | Seed Nov 2024 | — | 2023 | ↑ Active |
| 19 |
Foundry
Cloud infrastructure built for machine learning orchestration |
$80M | — | Series A | Series A Mar 2024 | — | 2022 | — |
| 20 |
Wald.ai
Provider of a platform for secure AI conversations and data protection |
$4M | — | Seed | Seed Dec 2024 | — | 2023 | ↑ Active |
| 21 |
Lamini
AI-powered LLM platform for enterprise software development |
$25M | — | Series A | Series A May 2024 | 6 | 2022 | — |
| 22 |
Resonai
Provider of AI-based 3D vision technology for AR or VR, robotics, smart cars, and drones |
$43M | — | Series A | Series A Oct 2022 | 39 | 2016 | — |
| 23 |
Super AGI
Provider of an AI-native platform with applications and agents for business |
$10M | $100M as of 2024 |
Series A | Series A Oct 2023 | — | 2020 | — |
| 24 |
Hopsworks
Provider of a unified platform for feature engineering and production AI |
$12.4M | — | Series A | Series A Jun 2023 | 40 | 2018 | — |
| 25 |
Subspace
Developer of a network providing infrastructure for decentralized AI applications |
$37.4M | — | Series A | Series A Mar 2022 | 38 | 2014 | — |
| 26 |
Inference.ai
Providing optimized GPU compute resources for AI workloads, machine learning training, and inference tasks |
$4M | — | Seed | Seed Jan 2024 | — | 2023 | — |
| 27 |
Neptune
Provider of a cloud-based experiment management platform |
$13M | — | Series A | Series A Apr 2022 | 50 | 2016 | — |
| 28 |
CoCoPIE
Provider of an AI-enabled video resolution upscaling application for multiple applications |
$10.6M | — | Series A | Series A May 2022 | 14 | 2020 | — |
| 29 |
Sherpa
Cloud-based federated learning platform for enterprises |
$16.7M | — | Series A | Series A Jan 2019 | 23 | 2012 | — |
| 30 |
Verta Technologies
Platform offering tools for machine learning model versioning and deployment |
$11.7M | — | Acquired | Series A Aug 2020 | 16 | 2018 | — |
| 31 |
Nod
Provider of neural network-powered solutions for training and deployment of ML models |
$19M | — | Acquired | Series A Jun 2015 | 17 | 2013 | — |
| 32 |
Diffbot
AI-powered web data extraction and knowledge graph solutions |
$12.5M | — | Series A | Series A Feb 2016 | 27 | — | — |
| 33 |
Dialogflow
Provides technology for natural language conversation |
$5.8M | — | Acquired | Series A Aug 2015 | 32 | 2010 | — |
| 34 |
Agentive
Provider of a platform for audit evidence requests and testing |
$500K | — | Seed | Seed Jun 2023 | — | 2023 | — |
| 35 |
Apprente
Developer of AGI (artificial general intelligence) based automated customer service solution |
$4.8M | — | Acquired | Seed Jan 2018 | 16 | 2017 | — |
| 36 |
Mirror
Developer of application providing personalized emoji and avatar creation services |
$3.7M | — | Series A | Series A Mar 2018 | — | 2017 | — |
| 37 |
Wit.ai
Natural Language for the IoT |
$3.1M | — | Acquired | Seed Oct 2014 | 11 | 2013 | — |
| 38 |
Pat
Human Machine conversation soultions |
$2.5M | — | Seed | Seed Jul 2016 | 10 | 2015 | — |
| 39 |
Grokable
Stealth Mode startup developing machine learning based solutions for pattern recognition |
$2M | — | Seed | Jul 2011 | 1 | 2007 | — |
| 40 |
mosaix
Developer of AI-based voice assistance and language platforms |
$120K | — | Deadpooled | Seed Mar 2017 | 8 | 2016 | — |
| 41 |
Articul8
Platform to build, deploy, and manage GenAI applications |
— | — | Series B | Series B Jan 2026 | — | 2023 | ↑ Active |
| 42 |
Hub
Provider of real-time, multimodal data infrastructure for AI and research |
— | — | Seed | Seed Sep 2025 | — | 2023 | ↑ Active |
| 43 |
Kontain.ai
Provider of AI development and deployment services |
— | — | Deadpooled | Seed Apr 2021 | 9 | 2018 | — |
| 44 |
AgentQL
Provider of an AI agents to interact with web pages using natural language descriptions |
— | — | Unfunded | — | — | 2023 | — |
| 45 |
AIBrain
Developer of artificial intelligence solutions for education, entertainment, and sports |
— | — | Funding Raised | — | 20 | 2012 | — |
| 46 |
Apparate Labs
Developer of real-time generative human API and foundation models |
— | — | Unfunded | — | — | 2023 | — |
| 47 |
Arith
Developer of AI accelerator IP cores for edge and datacenter applications |
— | — | Unfunded | — | — | 2025 | — |
| 48 |
AyeAI
AI orchestration platform connecting business data sources with AI models |
— | — | Funding Raised | — | — | 2023 | — |
| 49 |
Camvi Technologies
Provider of face recognition and identification technologies |
— | — | Unfunded | — | 7 | 2015 | — |
| 50 |
Crestle
Provider of deep learning platforms |
— | — | Acqui-Hired | — | — | 2018 | — |
Provider of AI-powered software and hardware. The platform offers a suite of generative AI systems for enterprises and government organizations. Its suite includes ChatGPT chatbots designed for banks, law firms, healthcare providers, and other sectors.
Developer of an API providing web search for AI applications. The API delivers outputs built on cross-referenced facts, designed to minimize hallucination. It offers predictable costs based on task complexity, charging per query. The API provides verifiability and provenance.
Developer of self-improving artificial intelligence systems focused on chip design. The company aims to reinvent chip development by creating a recursive loop between AI and hardware. This approach is intended to accelerate the progress toward artificial superintelligence.
Platform offering security solutions for AI models. The platform develops AI systems safe for human use. It aligns AI capabilities with human values for AI systems to not pose risks to society. Its safety measures are integrated from the outset.
Developer of an operating system for building and deploying AI agents. The system governs agent actions, orchestrates across teams, and learns from outcomes. It generates production-ready systems from natural language, tailored to enterprise environments. The operating system enables agents to earn autonomy through demonstrated reliability. It provides security, compliance, and auditability.
Developer of artificial intelligence models for visual reasoning and perception. These systems interpret spatial relationships, physical constraints, and structural complexity within visual data. The technology enables machines to process and analyze images to perform tasks requiring understanding of the physical world. Applications include robotics, scientific research, medical analysis, and environmental monitoring
Developer of AI observability platform for monitoring, explainability, and responsible AI. The platform offers capabilities for model monitoring, LLM observability, and agentic observability. It provides tools for detecting model drift, assessing performance, and setting alerts. The platform also supports NLP and CV monitoring, explainable AI, analytics, and responsible AI practices.
Developer of mathematics AI models. It leverages AI technology to solve complex mathematical problems. It is offering extensive possibilities for applications across various industries.
AI development processes offering programmatic solutions. It provides a platform that allows users to train a large amount of data by using program codes for the building and deployment of AI models. It features captures and encodes their domain expertise and automates manual tasks like filtering, curating, labeling, and slicing.
Provider of machine learning models and infrastructure for deep learning models. The platform provides production-ready solutions, allowing users to run AI models using an API.
Developer of unified framework for generative AI platform. Its diffusion large language model that reportedly achieves performance across various data modalities, including images, videos, and text.
Platform developing physical AI. Its model can perceive and reason about the physical world by fusing multimodal sensor data and natural language. The platforms approach involves sensor fusion, integrating information from multiple sensor modalities like radars, cameras, accelerometers, and more to analyze unstructured sensor data and uncover hidden patterns of behavior.
Sequoia Capital
Lightspeed Venture Partners
Intel Capital
Y Combinator
In-Q-Tel
Mayfield
Nvidia
SV Angel
Alumni Ventures
DST Global
Felicis Ventures
Greylock Partners
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 2026-06-23.
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