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Seed Companies in San Francisco

Explore 3,301 seed startups based in San Francisco, United States. Access verified founder contact information and fundraising data.

Total Companies
3,301
Total Funding
$82.6M
Avg Funding
$3.3M
Industries
9

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Recently Funded Companies

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$364K
raised

Arch Perception is a smart device company that offers smart wearables for cognitive extension.

May 2026
Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)

Luel develops AI training data marketplace that supplies training datasets to connect AI enterprises and content contributors.

May 2026
Seed

Founder Contacts

41,000+ verified contacts

$1.2M
raised

HiCap.ai provides crowdsourced computing for running AI models, cutting costs, boosting speed, and protecting data privacy.

May 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$6.0M
raised

Flux Auto develops modular autonomous driving technology for trucks.

May 2024
Seed

Founder Contacts

41,000+ verified contacts

Blockchain
$3.0M
raised

Empowering blockchain developers to make applications with real-world use and impact.

May 2022
Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Artificial Intelligence (AI)
$8.3M
raised

Graphon is a company that creates relational representation layers and pre-model intelligence for enterprise AI.

May 2026
Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$500K
raised

Gigacatalyst provides an embedded AI customization layer that lets B2B SaaS users build apps, dashboards, and automated workflows.

May 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$500K
raised

PLAN0 AI provides an AI-powered preconstruction cost intelligence platform for real estate and construction stakeholders.

May 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)

Clara is an AI-first primary care and longevity practice, it pairs continuous health monitoring via AI with real, licensed clinicians.

May 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Accounting
$10.0M
raised

Synthetic automates bookkeeping and accounting workflows for businesses.

May 2026
Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
Unlimited exports
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Artificial Intelligence (AI)
$500K
raised

PerfectBit provides verifier grounded multimodal training data for advanced AI models and research systems.

May 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$1.0M
raised

Soopra.AI develops an AI-powered personality engine for authentic digital reflections.

May 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

Business Process Automation (BPA)
$2.2M
raised

Saile is an AI-enabled healthcare staffing marketplace connecting doctors and advanced practice providers with clinical &non-clinical gigs.

May 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$8.5M
raised

Champ is your AI operations teammate that automates SOP-driven work across browsers, documents, and internal systems.

May 2026
Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$4.0M
raised

Privacy-guaranteed synthetic data for training AI models

May 2026
Seed

Founder Contacts

41,000+ verified contacts

Ready to Reach These Founders?

Get verified contact info for decision-makers at 3,301 funded startups

41,000+ verified emails
Unlimited exports
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Artificial Intelligence (AI)
$500K
raised

Surtr Defense Systems is a developer of AI-powered software layer that combine different drone technologies into one command system.

May 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$8.0M
raised

Origin Lab provides rights-cleared multimodal datasets, 3D environments, and custom AI training services for reasoning and AI models.

May 2026
Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$6.3M
raised

Stackpack is AI platform help companies to manage the accelerating costs, risks, and complexity of third-party vendors.

May 2025
Seed

Founder Contacts

41,000+ verified contacts

Communities
$6.5M
raised

StartPlaying is a gameplay community platform that allows players to find tabletop role-playing games and game masters for any game system.

May 2022
Seed

Founder Contacts

41,000+ verified contacts

Analytics
$6.0M
raised

XO Market is a decentralized platform that allows users to create, trade, and share their beliefs through conviction markets.

May 2026
Seed

Founder Contacts

41,000+ verified contacts

Ready to Reach These Founders?

Get verified contact info for decision-makers at 3,301 funded startups

41,000+ verified emails
Unlimited exports
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Analytics
$6.0M
raised

Marketing measurement and forecasting for fast-growing businesses.

May 2025
Seed

Founder Contacts

41,000+ verified contacts

Electronic Design Automation (EDA)
$2.2M
raised

Rapid semiconductor manufacturing

May 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

$300K
raised

Your local AI agent that sells your home for you. Commission free.

May 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$800K
raised

Ex-human offers empathetic AI characters that keep conversations lively and engaging.

May 2024
Seed

Founder Contacts

41,000+ verified contacts

Agriculture

Precip provides precise rainfall tracking without the use of a gauge.

May 2024
Seed

Founder Contacts

41,000+ verified contacts

Showing 926 to 950 of 3,301 companies

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3,301 Recently Funded Seed Startups in San Francisco (October 2026) — Page 38 | VCBacked