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Cumulus Labs

YC W26

San Francisco, US · Founded 2025 · 2 employees · Hiring · 11 known investors

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Cumulus Labs provides an inference platform that consolidates production AI infrastructure (routing, caching, observability, evaluation, fine-tuning, and runtime) into a single API. The platform serves AI teams building production applications across any model provider or framework.

Also known as Cumulus Compute Labs Corporation · Cumulus

AI & Machine LearningCloud ComputingData & InfrastructureDeveloper ToolsEnterprise SoftwareUnited States of AmericaAmerica / CanadaPartly Remote

Founders & leadership· Y Combinator alumni (W26)

Cumulus Labs was founded in 2025 by Veer Shah.

VSVeer Shah
Veer ShahFounderVeer Shah studied Computer Science at the University of Wisconsin–Madison and worked at an aerospace startup during college on Space Force and NASA SBIR programs related to satellite communications and space systems. He previously captained a FIRST Robotics team.
SR
Suryaa Rajinikanth

Investors · 11

Dementia Discovery Fundlisted by Dementia Discovery FundLondon

How we know: Dementia Discovery Fund's portfolio page · Not right? Tell us

Investing Women Angelslisted by Investing Women AngelsEdinburgh · $335K

How we know: Investing Women Angels's portfolio page · Not right? Tell us

Koru Capitallisted by Koru Capital

How we know: Koru Capital's portfolio page · Not right? Tell us

Valor Equity Partnerslisted by Valor Equity PartnersChicago

How we know: Valor Equity Partners's portfolio page · Not right? Tell us

Augur VCreportedCalgary

How we know: Y Combinator's founder network · Not right? Tell us

Batch Venturesreported

How we know: Y Combinator's founder network · Not right? Tell us

Blast.Clubreported$5.5M

How we know: Y Combinator's founder network · Not right? Tell us

Founders FactoryreportedLondon · $150K – $200K

How we know: Y Combinator's founder network · Not right? Tell us

OurCrowdreportedJerusalem

How we know: Y Combinator's founder network · Not right? Tell us

Seven Capital Venturesreported

How we know: Y Combinator's founder network · Not right? Tell us

The YC application· Winter 2026 batch

Alumni Q&A

How did your company get started? (i.e., How did the founders meet? How did you come up with the idea? How did you decide to be a founder?)
The founders have known each other since childhood, having built robots together from the age of seven.

Summarized from the founders' answers on their Y Combinator profile.

Related companies · 8

NVIDIANVIDIA designs GPUs, AI computing hardware, and software platforms for AI development, data centers, autonomous vehicles, and robotics, serving developers, researchers, and enterprises. Its offerings include AI models, power architecture for AI factories, and compute infrastructure used across industries such as manufacturing, healthcare, and automotive.
Hugging FaceHugging Face is a collaboration platform that hosts and provides access to machine learning models, datasets, and applications. It offers both open-source tools for the ML community and paid compute and enterprise solutions for teams building AI applications.
SymblSymbl.ai offers a developer platform with APIs, SDKs, and a specialized LLM (Nebula) that enterprises use to build real-time AI agents and conversation intelligence from voice, video, and chat. It provides tools for support, sales, and service teams to power voice agents, live agent assist, call scoring, sentiment analysis, and compliance alerts.
Cloudflare, Inc.Cloudflare provides a global cloud network platform delivering security, performance, and development services through sixty-plus integrated services including SASE, application security, and full-stack development infrastructure.
CAST AICast AI provides an Application Performance Automation (APA) platform that autonomously optimizes Kubernetes and cloud applications in real time, handling workload rightsizing, scaling, and cost reduction. It targets companies running cloud and containerized workloads that want to cut cloud spend and improve application performance automatically.
DataCampDataCamp is a learning platform for teams that teaches data and AI skills through hands-on coursework accessible via web browser and mobile app. It serves enterprise customers and development teams seeking to build technical capabilities.
BentomlBentoML provides a platform for deploying, managing, and scaling AI model inference, with support for open-source and custom models across any architecture or framework. It offers tools for packaging models, resource management, monitoring, and deployment on cloud or on-premises infrastructure for AI/ML teams.
CantoCanto provides a digital asset management (DAM) platform that centralizes a brand's digital assets and product content, with AI-powered search, distribution, and collaboration tools. It serves marketing and brand teams managing their content lifecycle across an organization.

Companies working in the same space as Cumulus Labs.

Legal entities · 1

corporate structure
Cumulus Compute Labs Corporation

In the news

Cumulus Labs ☁️ | Supercharge Your Training & Inferenceycombinator.com · Jan 2026Cumulus Labs Funding | Complete Analysis | Extruct AIextruct.ai

Frequently asked questions

What does Cumulus Labs do?
Cumulus Labs provides an inference platform that consolidates production AI infrastructure (routing, caching, observability, evaluation, fine-tuning, and runtime) into a single API. The platform serves AI teams building production applications across any model provider or framework.
Who founded Cumulus Labs?
Cumulus Labs was founded by Veer Shah in 2025.
Who are Cumulus Labs's investors?
Cumulus Labs's investors include Y Combinator, Dementia Discovery Fund, Investing Women Angels, Koru Capital, Valor Equity Partners, Augur VC, Batch Ventures, Blast.Club and 3 more.
Where is Cumulus Labs headquartered?
Cumulus Labs is headquartered in San Francisco, US.