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Pre-Seed Companies in San Francisco

Explore 1,502 pre-seed startups based in San Francisco, United States. Access verified founder contact information and fundraising data.

Total Companies
1,502
Total Funding
$23.5M
Avg Funding
$941K
Industries
11

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Recently Funded Companies

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Big Data
$2.0M
raised

Rust based data streaming infrastructure for a world that runs in real time — faster, simpler, and radically more efficient.

Apr 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$500K
raised

Patchwork helps the team by providing better AI powered communication tools and replacing the Slack.

Apr 2024
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$500K
raised

Mango Health assists doctors in receiving payment for referring patients to therapy.

Apr 2024
Pre-Seed

Founder Contacts

41,000+ verified contacts

Financial Services
$500K
raised

Numo is a financial company that help the contactor, banks and freelancers to get paid in emerging markets.

Apr 2024
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)

Attunement is a digital behavioral health platform for better mental healthcare.

Apr 2024
Pre-Seed

Founder Contacts

41,000+ verified contacts

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

Vectorview is a Customized capacity assessments that measure performance, safety, and risk for LLM agents and foundation models.

Apr 2024
Pre-Seed

Founder Contacts

41,000+ verified contacts

Information Technology
$500K
raised

SciPhi is an open source platform that makes it easy to build, test, deploy and scale your LLM RAG system.

Apr 2024
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$500K
raised

Creo is a software that builds internal tools with prompt using artificial intelligence.

Apr 2024
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)

Spark is a software company that builds AI powered search engine and workflow solution for large-scale clean energy developers.

Apr 2024
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)

Meticulate is an AI-native prospecting engine

Apr 2024
Pre-Seed

Founder Contacts

41,000+ verified contacts

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

Taiga is the AI-native medical billing company that manages billing service and takes over the entire revenue cycle.

Apr 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Manufacturing
$2.0M
raised

The AI operating system for supply chain teams.

Apr 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$2.6M
raised

The first robots capable of true friendship

Apr 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

AI Infrastructure
$500K
raised

StableBrowse provides browser infrastructure and tools that let AI agents navigate and automate workflows on dynamic websites.

Apr 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$2.3M
raised

Taelor helps busy men look good without the commitment of buying clothes. AI-powered menswear rental subscription service in the U.S.

Apr 2022
Pre-Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Agentic AI
$500K
raised

Bento Labs builds production infrastructure for AI agents to monitor what runs, improve what fails with compound learnings.

Apr 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

$1.9M
raised

TriFetch is a San Francisco-based healthcare AI startup focused on bridging AI foundations with practical healthcare applications.

Apr 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Accounting
$1.5M
raised

Quillon develops artificial intelligence software designed for technical accounting and financial reporting workflows.

Apr 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)

Astraea is an AI native clinical trial platform that helps to automate the clinical trial process using AI agents.

Apr 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

AI Infrastructure
$500K
raised

GovGuard provides AI software that automates FOIA and public records workflows for government agencies.

Apr 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

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Get verified contact info for decision-makers at 1,502 funded startups

41,000+ verified emails
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Aerospace

Dispatch develops autonomous vehicles that transport cargo and research payloads between space and Earth.

Apr 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)

Sixtyfour is a AI based reasech service company that automates to enrich specialized professionals, company data, and insights.

Apr 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

$1.0M
raised

Building multiplayer experiences across multiple platforms and surfaces.

Apr 2023
Pre-Seed

Founder Contacts

41,000+ verified contacts

Computer
$1.2M
raised

Ethically is a product recommendation assistant for the next generation of consumers

Apr 2022
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$4.0M
raised

Autonomous construction on Earth and beyond.

Apr 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

Showing 476 to 500 of 1,502 companies

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1,502 Recently Funded Pre-Seed Startups in San Francisco (October 2026) — Page 20 | VCBacked