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Seed Companies in San Francisco

Explore 3,225 seed startups based in San Francisco, United States. Access verified founder contact information and fundraising data.

Total Companies
3,225
Total Funding
$210.8M
Avg Funding
$8.4M
Industries
12

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Artificial Intelligence (AI)
$5.1M
raised

Olto crafts personalized live demos by overlaying AI-generated, prospect-relevant data on top of your existing production apps.

Jul 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$5.5M
raised

Network3 is a firm that develops web3 AI infrastructure.

Jul 2024
Seed

Founder Contacts

41,000+ verified contacts

Apps
$1.0M
raised

SST is an open-source framework for building full-stack applications.

Jul 2021
Seed

Founder Contacts

41,000+ verified contacts

Bitcoin

Yours is a blockchain-based social network where users can earn bitcoin.

Jul 2021
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$2.0M
raised

Building test time cognition architectures for agentic intelligence.

Jul 2024
Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Artificial Intelligence (AI)
$5.5M
raised

Klaimee is a startup that develops insurance and certification infrastructure for autonomous AI agents.

Jul 2026
Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$4.1M
raised

StrongestLayer is an AI-based cybersecurity platform mainly for email security and human risk mitigation.

Jul 2026
Seed

Founder Contacts

41,000+ verified contacts

$15.0M
raised

Poseidon is a full-stack decentralized data layer built for AI training workflows.

Jul 2025
Seed

Founder Contacts

41,000+ verified contacts

Analytics
$4.6M
raised

Real-time monetization infrastructure for AI.

Jul 2024
Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$4.0M
raised

Noded AI helps users prepare for customer meetings by organizing notes and past interactions.

Jul 2024
Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Blockchain
$4.4M
raised

Cardinal is an NFT infrastructure protocol facilitator that offers leasing, staking, and ticketing to increase the utility of NFTs.

Jul 2022
Seed

Founder Contacts

41,000+ verified contacts

E-Commerce
$4.4M
raised

Vinebase is building a DTC platform to connect wine lovers with small wineries.

Jul 2021
Seed

Founder Contacts

41,000+ verified contacts

Cyber Security
$400K
raised

Jigger is the anti-bot for games, services and communities.

Jul 2022
Pre-Seed

Founder Contacts

41,000+ verified contacts

AI Infrastructure
$20.0M
raised

SkyPilot develops a unified AI compute platform for managing AI workloads across clouds, Kubernetes clusters, and accelerator types.

Jul 2026
Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$6.3M
raised

Hyper provides solutions to optimize Automating non-emergency phone calls with voice AI to help people in criticial situations.

Jul 2025
Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Digital Entertainment
$3.2M
raised

VStream is an offline and live-streaming video platform explicitly created for virtual content producers and their fanbases.

Jul 2022
Pre-Seed

Founder Contacts

41,000+ verified contacts

Agentic AI
$6.2M
raised

Swamp Club is an agentic AI company that offers a platform fortraining AI agent to build and execute repeatable workflows.

Jul 2026
Seed

Founder Contacts

41,000+ verified contacts

Information Services
$1.0M
raised

SeenCulture creates personalized Employee Experiences enabling people to feel seen beyond their job title.

Jul 2024
Pre-Seed

Founder Contacts

41,000+ verified contacts

Fitness

The easiest way to add technique coaching and correction to sport and fitness products.

Jul 2022
Seed

Founder Contacts

41,000+ verified contacts

Analytics
$1.5M
raised

Umami is a open-source and privacy-focused web analytics platform.

Jul 2022
Pre-Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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No credit card required
$391K
raised

Cratos Chargers is an app that provides portable charger rental services.

Jul 2021
Pre-Seed

Founder Contacts

41,000+ verified contacts

Blockchain
$4.7M
raised

Sunscreen is a cryptography company that translates frontier Fully Homomorphic Encryption (FHE) research into production-ready tooling.

Jul 2022
Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$100.0M
raised

Tala Health is a digital-first healthcare provider that offers AI-driven clinical support for diagnostic triage and care coordination.

Jul 2025
Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$4.2M
raised

Cofident Security offers an end-to-end encryption tool that wraps around foundational models for security

Jul 2025
Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$7.3M
raised

Blaxel is a cloud infrastructure to deploy and scale AI agents.

Jul 2025
Seed

Founder Contacts

41,000+ verified contacts

Showing 351 to 375 of 3,225 companies

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