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Pre-Seed Developer Tools Companies

Explore 276 developer tools startups that raised pre-seed funding. Access verified founder contact information and fundraising data.

Total Companies
276
Total Funding
$14.0M
Avg Funding
$561K
Cities
9

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Berkeley, United States
$500K
raised

Ashr offers a platform that evaluates AI agents by running tool calls, prompts, scoring outputs, and tracing execution paths.

Mar 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$500K
raised

Glue provides a software tool that allows developers and coding agents to build and modify user interfaces directly from code.

Mar 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$500K
raised

Sentrial offers an AI agent observability platform that monitors behavior, detects issues, suggests code fixes, and integrates via APIs.

Mar 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$500K
raised

Polymath builds AI training environments to develop and evaluate autonomous agents on long and complex software tasks.

Mar 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Mateo, United States

Valgo develops software that quantifies risk for the insurance of physical AI systems.

Mar 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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San Francisco, United States
$500K
raised

Salus offers AI runtime controls that validate and block agent tool calls, enforce policies, and guide retries with feedback.

Mar 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$500K
raised

Sparkles offers a cloud environment where teams build, test, and preview code changes.

Mar 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Alpharetta, United States
$500K
raised

Nullstone is a developer platform that connects all engineering tools and allows developers to launch apps on cloud providers.

Mar 2022
Pre-Seed

Founder Contacts

41,000+ verified contacts

Wilmington, United States
$1.0M
raised

GenAI testing and validating startup

Mar 2023
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States

TensorPool makes ML model training effortless - just describe your job, and TensorPool handle GPU orchestration and execution.

Mar 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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San Francisco, United States
$500K
raised

Pig is a software development company that develops API for automating Windows desktops with AI.

Mar 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Antonio, United States
$1.1M
raised

Evolvable provides software that automatically writes, tests, fixes, and improves codebases continuously.

Mar 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Cork, Ireland
$1.2M
raised

Interplay connects and automates design and code workflows to align your entire product team around a single source of truth

Feb 2022
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Compresr is a platform that compresses text for LLMs, saving tokens and costs, and includes an API, a Python SDK & adjustable compression.

Feb 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$500K
raised

Replicas is a software that provides virtual machine workspaces for AI coding agents to run and manage software development environments.

Feb 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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San Francisco, United States

Confluence Labs develops AI systems for data-efficient reasoning and program synthesis to support research in science and engineering.

Feb 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$120K
raised

Watermelon offers an open-source copilot for code review

Feb 2023
Pre-Seed

Founder Contacts

41,000+ verified contacts

Dublin, Ireland
$1.0M
raised

MARC is an AI startup dedicated to real estate asset management.

Feb 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$500K
raised

Mohi provides a platform that analyzes and clarifies complex AI agent workflows to help optimize and troubleshoot autonomous processes.

Sep 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$2.1M
raised

Guepard: Serverless databases with Git Superpowers for Teams and Agents

Sep 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

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Get verified contact info for decision-makers at 276 funded startups

41,000+ verified emails
Unlimited exports
No credit card required
San Francisco, United States
$500K
raised

Cyberdesk provides virtual desktops for deploying AI agents using simple code.

Sep 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$500K
raised

Cactus enables AI model execution on mobile platforms through an open source inference engine with support for multiple app frameworks.

Sep 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$500K
raised

BootLoop enables AI agents to write, test, and debug firmware directly on the intended hardware.

Sep 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$500K
raised

Keystone is an AI-native testing platform that helps developers build, maintain, and run end-to-end tests at scale.

Sep 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

New York, United States
$500K
raised

Async offers a coding platform that enables the development of end-to-end apps, encompassing building, testing, and deployment.

Sep 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

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