Pebblebed
Venture capitalSan Francisco
Investment thesis
Pebblebed targets technical founders and technically rigorous problem-solving. The firm seeks what it terms self-protecting ideas: concepts that are simple to articulate but punishing to execute and valuable because most entrepreneurs avoid them. The firm leads its investments and maintains a physical workspace in San Francisco equipped with robotics infrastructure.
Source: firm website, verified Jul 21, 2026.
What they invest in
from 9 of 56 portfolio companiesAI & Machine Learning Γ8Deep Tech Γ3Developer Tools Γ3Enterprise Software Γ3Cloud Computing Γ2Creator Economy Γ2Advanced Manufacturing Γ1Biotech Γ1
HQs:United StatesΓ4
Investments Β· 56 tracked
founders shown can be your intro pathEnd-to-end app creation for non-developers
AI automation for scientific workflows
Turning microbes into micro-factories to rebuild ingredient supply chains
AI-powered voice synthesis for video creators
Cosmos is a unified AI agents platform that enables enterprise development teams to automate software development workflows at scale, improving engineering throughput and reducing time-to-merge through intelligent agent coordination and codebase understanding.
AI & Machine LearningDeveloper ToolsEnterprise Software
AI agents that understand your entire codebase
Science Corporation develops brain-computer interface and neural engineering technology to restore vision, cognition, and mobility to patients with debilitating conditions. The company also provides components and vertically integrated infrastructure through Science Foundry to support innovation across the neural technology industry.
AI & Machine LearningBiotechDeep TechDigital HealthMedical DevicesAlameda, US
Max Hodak(Chief Executive Officer)
AI for commercial real estate reports
Build develops agentic AI systems to automate mission-critical services in institutional real estate development and construction, helping organizations accelerate project delivery from concept to completion.
AI & Machine LearningConstruction TechEnterprise SoftwarePropTechNew York, US
James Stirrat-Ellis(CEO)Ben McClusky(CTO)
Cedana provides infrastructure software that automatically checkpoints, migrates, and resumes GPU jobs across instances to improve throughput, reliability, and performance.
AI & Machine LearningCloud ComputingData & InfrastructureDeveloper ToolsEnterprise SoftwareNew York City, US
Memory infrastructure for AI agents
Document infrastructure for workflow automation
WebAssembly infrastructure and developer tools for plugin systems
AI-powered assistants for SMBs
AI-enabled proactive concussion care via telehealth
Krea.ai is a creative AI platform that generates, enhances, and edits images, videos, and 3D meshes. It serves creatives, enterprises, and everyday users with AI-powered tools for image generation, upscaling, video generation, and generative editing.
AI & Machine LearningCreator Economy
AI-first tools for professional creators
Lemurian Labs develops Tachyon, a software stack that enables AI workloads to run on any hardware or cloud without modification while maintaining or exceeding hand-optimized kernel performance. The platform targets researchers, startups, and enterprises seeking to decouple their AI models from specific hardware and cloud vendor dependencies.
AI & Machine LearningCloud ComputingDeveloper Tools
Universal compiler and runtime for AI
Energy-based AI models for formal verification
PaaS for deploying and scaling modern applications
AI-native software engineering platform
Operating system and coordination layer for intelligent robots
Whole-genome sequencing for IVF embryos
Oxen.ai provides a platform for creating and managing digital assets, including videos and images, with integrated generative AI capabilities and model fine-tuning for visual style customization.
AI & Machine LearningCreator Economy
End-to-end infrastructure for fine-tuning and inference
Distributed Async Await for cloud apps
Spectral Labs builds foundation models with spatial intelligence to design and reason about physical systems for engineering and manufacturing applications.
Advanced ManufacturingAI & Machine LearningDeep TechSan Francisco, US
Spatial intelligence for engineering physical systems
Building toward general-purpose humanoid robots
Ulysses builds autonomous vehicles and integrated hardware-software systems for maritime operations, serving ocean stewardship, ecosystem restoration, infrastructure defense, and subsea surveillance. The company develops persistent autonomous underwater vehicles designed for long-duration missions across ecological and security applications.
Climate TechDeep TechRobotics
Exploring new forms of personal identity on the web
Simulation infrastructure for real-world autonomous systems
Frequently asked questions
- What sectors does Pebblebed focus on?
- Pebblebed focuses on Deep Tech, Sector Agnostic.
- Where is Pebblebed located?
- Pebblebed is headquartered in San Francisco, US.
- Does Pebblebed lead rounds?
- Yes, Pebblebed leads investment rounds.
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