67 Best Ai Startups in San Francisco to Watch in 2025

The Definitive Seedtable Ranking of Ai Startups in San Francisco

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 768 start-ups with an aggregate funding of $79.0b. The average funding per company in this subset is $1.2b.

Last update to the database: Feb 18, 2025. See changelog.

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8

Funding Rounds

$58.2b

Money raised

OpenAI is an AI research and deployment platform.

Location:

Key people:

3

Funding Rounds

$364.2m

Money raised

Neuralink is a company that develops brain-computer interface (BCI) devices to assist people with paralysis and blindness and technologies that may expand the abilities of humans.

Location:

Key people:

9

Funding Rounds

$570.0m

Money raised

Dialpad is a San Francisco-headquartered business communications platform company.

5

Funding Rounds

$5.0b

Money raised

AI safety and research platform.

Key people:

3

Funding Rounds

$17.5m

Money raised

Numerai is a hedge fund with stock market trades determined by crowdsourced artificial intelligence models. The best models receive rewards in the form of a cryptographic token called Numeraire (NMR) on the Ethereum blockchain.

1

Funding Rounds

$10.0m

Money raised

LangChain is an open-source framework for developing applications powered by language models.

1

Funding Rounds

$31.0m

Money raised

An online publishing platform used by amateur and professional writers. Membership fees are used to pay writers.

4

Funding Rounds

$230.0m

Money raised

Humane develops and commercializes consumer hardware, software, and services.

4

Funding Rounds

$74.3m

Money raised

Pachama is a company estimating carbon storage in forests and predicting future deforestation or potential for forest restoration with the use of satellite images.

4

Funding Rounds

$204.7m

Money raised

Primer is a San Francisco-based company developing AI to generate written intelligence reports.

6

Funding Rounds

$157.0m

Money raised

Data.ai, formerly known as App Annie, is a unified data and artificial intelligence (AI) company that combines consumer and market data to provide AI-powered insights into mobile app market data.

4

Funding Rounds

$165.0m

Money raised

Elastic is a software company that creates products for searching for information on the Internet. It was founded in 2012 and is headquartered in San Francisco and Amsterdam.

3

Funding Rounds

$47.0m

Money raised

Paravision is a San Francisco-based provider of facial recognition and activity monitoring software. Paravision was previously known as Ever AI.

Location:

Key people:

1

Funding Rounds

$1.2m

Money raised

Artificial intelligence company who uses models and IBM's Watson in the management of their AI Powered Equity Fund ETF (AIEQ) and AI Powered International Equity ETF (AIIQ)

5

Funding Rounds

$121.0m

Money raised

A company offering an email client designed to be the fastest email experience. The company was founded by Conrad Irwin, Rahul Vohra, and Vivek Sodera in 2015 and is headquartered in San Francisco, California.

Location:

Key people:

6

Funding Rounds

$203.6m

Money raised

Loom is a software company that develops communication software for asynchronous presentations through sharable video recordings.

1

Funding Rounds

$13.5m

Money raised

MetaMap aims to digitize trust

Location:

Key people:

4

Funding Rounds

$43.9m

Money raised

Iterative.ai is a machine learning and artificial intelligence training platform provider.

6

Funding Rounds

$775.6m

Money raised

Scale AI is an artificial intelligence company making an API for validating and training data for applications.

5

Funding Rounds

$335.0m

Money raised

Notion is a software company offering a platform for writing, planning, and organizing note-taking.

Location:

Key people:

10

Funding Rounds

$1.1b

Money raised

Deel is a technology company offering a human resources management system solution for businesses working with global remote contractors.

3

Funding Rounds

$21.0m

Money raised

Kite.Com is a San Francisco-based company that builds AI-powered auto-complete features for developers.

4

Funding Rounds

$92.0m

Money raised

Forethought is a San Francisco-based company providing customer service automation using generative AI technology.

Key people:

6

Funding Rounds

$215.0m

Money raised

Tecton is a machine learning DevOps platform for data scientists.

Location:

Key people:

8

Funding Rounds

$890.1m

Money raised

Lyra helps companies improve access to effective, high-quality mental health care for their employees.

8

Funding Rounds

$3.0b

Money raised

Postmates is a food delivery service company operating a network of couriers for local goods delivery.

2

Funding Rounds

$415.0m

Money raised

Adept AI Labs is a machine learning research and product lab building general intelligence systems

Location:

Key people:

3

Funding Rounds

$125.0m

Money raised

Synchron, Inc. is a technology company building implantable neural interface solutions, including endovascular brain-computer interface.

7

Funding Rounds

$207.3m

Money raised

Replit is a San Francisco-based IDE and software development environment company making a browser application platform for coding in over fifty programming languages.

Location:

Key people:

6

Funding Rounds

$30.0m

Money raised

Rain AI is a company developing a new AI compute platform by co-designing every layer of the AI stack.

8

Funding Rounds

$71.3m

Money raised

Notable Labs is a company providing personalized drug combination testing service for cancer patients.

6

Funding Rounds

$53.9m

Money raised

Sight Machine's manufacturing software platform uses an artificial intelligence (AI) platform to help improve quality and efficiency across a manufacturing enterprise.

3

Funding Rounds

$14.3m

Money raised

Aria Pharmaceuticals is a first-in-class pharmaceutical discovery and development founded in 2014 by Andrew M. Radin.

4

Funding Rounds

$20.0m

Money raised

A company offering an audio word processing platform that enables editor and producers to edit sound files while a writer would edit its lyrics.

Location:

Key people:

7

Funding Rounds

$97.8m

Money raised

Directly is a San Francisco-based developer of artificial intelligence systems of customer experience and chatbots founded by Antony Brydon, Jean Tessier and Jeff Patterson.

3

Funding Rounds

$113.0m

Money raised

Zilliz is a vector database company providing products for enterprise-grade AI.

4

Funding Rounds

$160.0m

Money raised

Suki is a Redwood City, California-based technology company developing AI-powered administrative tools for the healthcare industry.

4

Funding Rounds

$4.4m

Money raised

App Samurai is a San Francisco-based company that provides mobile marketing technology.

6

Funding Rounds

$63.1m

Money raised

Orion is a software company that makes a voice-first intelligent communication and automation platform for frontline workers.

Location:

Key people:

3

Funding Rounds

$26.6m

Money raised

Wispr is a personal computing platform for an AI-first world.

7

Funding Rounds

$248.0m

Money raised

Sourcegraph offers universal code search for developers and enterprises.

Location:

Key people:

5

Funding Rounds

$490.0m

Money raised

Grammarly is a web application for checking spelling, grammar, and plagiarism.

Location:

Key people:

3

Funding Rounds

$67.3m

Money raised

Luma AI is a developer of photorealistic 3D image capture software designed to enable users to capture 3D-viewable photos of scenes and objects on smartphones.

5

Funding Rounds

$11.6m

Money raised

Heavy.AI is an advanced analytics company that empowers organizations to visualize high-value opportunities and decisions.

3

Funding Rounds

$80.0m

Money raised

Kindred AI is a company founded in 2014 by George Babu, Geordie Rose, James Bergstra and Suzanne Gildert.

Location:

Key people:

5

Funding Rounds

$2.5m

Money raised

Linknovate is a data analytics and competitive intelligence scouting platform.

6

Funding Rounds

$214.0m

Money raised

Observe.AI is the creator of an AI platform for call centers.

4

Funding Rounds

$159.0m

Money raised

Aera Technology is a software company offering business automation functions.

4

Funding Rounds

$3.2m

Money raised

MonkeyLearn is an artificial intelligence data analysis and visualization platform.

6

Funding Rounds

$103.4m

Money raised

Tribal Credit is a company in San Francisco.

4

Funding Rounds

$188.9m

Money raised

Labelbox is a training data platform with labeling tools, human workforce, data management, API, and automation features for computer vision.

7

Funding Rounds

$30.3m

Money raised

Mattermark is a San Francisco-based company founded by Kevin Morrill, Danielle Morrill and Andy Sparks.

Key people:

8

Funding Rounds

$354.4m

Money raised

Starship Technologies is an Estonian company developing small self-driving robotic delivery vehicles. The company is headquartered in San Francisco, California, with engineering operations in Tallinn, Estonia, and a satellite team in Helsinki, Finland. Starship also has offices in London, UK, Germany, Washington, DC and Mountain View, California.

3

Funding Rounds

$47.0m

Money raised

Robust Intelligence is a Cambridge, Massachussets-based artificial intelligence company co-founded in 2019 by Harvard computer science professor Yaron Singer, Kojin Oshiba, Alexander Rilee, and Eric Balkanski.

Key people:

5

Funding Rounds

$162.5m

Money raised

A company offering a communications platform allows developers to quickly build features that connect to every email, calendar, and contacts provider in the world.

8

Funding Rounds

$427.9m

Money raised

Standard AI is a software company creating autonomous checkout systems for retailers.

3

Funding Rounds

$20.0m

Money raised

You.com is an ad-free, private search engine.

Location:

Key people:

6

Funding Rounds

$220.5m

Money raised

Domino Data Lab is a machine learning platform enabling data science teams to rapidly develop and deploy models that drive breakthrough innovation

Location:

Key people:

5

Funding Rounds

$108.1m

Money raised

AssemblyAI is a speech AI company developing AI models capable of transcribing and understanding human speech.

5

Funding Rounds

$373.0m

Money raised

Gupshup is an AI-powered messaging platform that integrates with communication software and protocols for commerce, marketing, and support applications.

4

Funding Rounds

$75.1m

Money raised

Volansi was a company offering delivery service for time-critical shipments using high-speed long-range drones. Volansi was acquired by Sierra Nevada Corporation in October 2022.

10

Funding Rounds

$704.5m

Money raised

Zipline is an automated logistics company that designs, manufactures, and delivers medical products.

Industries:

Key people:

1

Funding Rounds

$8.5m

Money raised

LlamaIndex is an open-source data framework for connecting custom datasets with large language models (LLMs) in order to build applications.

Location:

Key people:

1

Funding Rounds

$9.4m

Money raised

Datatron is an artificial Intelligence company providing machine learning, artificial intelligence, and data science models for user models.

5

Funding Rounds

$141.0m

Money raised

Founded in 2017 by David Hsu, Retool is an internal tool-building company for creating new business applications.

6

Funding Rounds

$94.2m

Money raised

A business intelligence company offering an artificially intelligent analytics web-based software platform .

7

Funding Rounds

$1.4b

Money raised

Gong is a conversation analytics and salesforce training platform company.

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