Data Infrastructure startups in San Francisco

AfterQuery

San Francisco

AfterQuery builds datasets and experimentation to advance frontier LLM and AI-agent workflows, constructing complex data-infrastructure for agentic and hard-reasoning tasks. It partners with five AI labs and is YC's infrastructure partner, led by teams from top banks and quant firms.

Artie

San Francisco

Artie enables real-time data streaming and database replication between databases and data warehouses, launched about a year ago and now processing over 10 billion rows per month, backed by Pathlight and General Catalyst.

Scale AI

San Francisco

Scale AI provides data-centric infrastructure to accelerate AI development, helping organizations build strong AI models and derive business insights and operational efficiency; serving customers across tech, government, and enterprise, inc

Chroma

San Francisco

Chroma provides data infrastructure for AI, aiming to accelerate useful and creative AI applications, and positions itself as the leading retrieval solution trusted by developers worldwide.

Foundational

San Francisco

Foundational helps data teams build and deploy code more reliably, reducing fragility from code changes and downstream data impacts. Founded by three industry veterans, its team includes professionals from leading companies and addresses a

MangoDesk

San Francisco

Creates frontier data and environments to advance AI, bridging AI with the $5T knowledge-work economy and accelerating AI capabilities and adoption in knowledge work.

Capitol AI

San Francisco

Capitol AI builds intelligence infrastructure for data-heavy enterprises, offering a model-agnostic platform that delivers decision-grade insights and trusted answers to reduce 80% AI project failure rate; it partners with owners of proprie

Freshpaint

San Francisco

Freshpaint builds privacy infrastructure to safeguard patient privacy and help marketing teams promote access to healthcare; its core product, the Privacy Platform, automates HIPAA compliance for healthcare providers' websites and apps.

Primer

San Francisco

Primer is an early-stage edtech company building a new education system around microschools to empower students’ curiosity, bootstrapped to nearly $1M in revenue in year one and then posted 15-20% MoM growth after fundraising.

Lapel

San Francisco

Lapel builds data infrastructure and tools that help customer-facing teams understand every customer and act on insight at scale, pursuing hospitality at scale by unifying context and coordinating action.

Relling

San Francisco

Relling develops data and infrastructure for world models, building advanced datasets to power world-models for humanoid robots and AR systems.