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FastJVM

YC W17

San Francisco, US · Founded 2016 · 3 employees · 4 known investors

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FastJVM develops a faster Java Virtual Machine (JVM) that outperforms existing implementations like HotSpot and GraalVM on certain workloads. The company focuses on JVM optimization and compilation technologies for developers building Java applications.

Also known as Manycore Corporation · Inboxbooster · Manycore · Manycore, Manycore.io, Manycore, Inboxbooster · Manycore.io

AI & Machine LearningDeveloper ToolsEnterprise SoftwareMarketing TechDevOpsCloud ComputingUnited States of AmericaAmerica / CanadaPartly Remote

Founders & leadership· Y Combinator alumni (W17)

FastJVM was founded in 2016 by Marcus Engene and Nicolas Toper.

MEMarcus Engene
Marcus EngeneFounder
NTNicolas Toper
Nicolas ToperFounderNicolas Toper is founder of FastJVM, which develops an optimized Java Virtual Machine for Java application developers.
ZC
Zach CohenDeliverability Consultant

Investors · 4

Agrolimen Venturesreported

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

Coyote VenturesreportedSan Francisco

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

Kima VenturesreportedParis · $50K – $5M

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

Related companies · 5

BrainboardBrainboard is a cloud infrastructure management platform that provides a unified workspace for designing and managing infrastructure across AWS, Azure, GCP, OCI, and Scaleway. It integrates with Terraform and Git-based workflows to automate infrastructure provisioning, compliance scanning, and cost optimization.
aptibleAptible provides cloud infrastructure and compliance management platform for developers in regulated industries including healthcare, financial services, and life sciences. The platform abstracts away complexity around HIPAA, HITRUST, SOC 2, and GDPR compliance so engineering teams can focus on building applications.
Dedalus LabsDedalus Labs provides virtual machines that boot in 250ms with Linux isolation, persistent storage, and scale-to-zero billing. The platform serves developers and infrastructure teams needing fast, isolated compute with pay-only-when-running economics.
TensorPoolTensorPool provides a command-line tool that manages GPU allocation and execution for machine learning model training, offering pricing lower than major cloud providers.
CoreOSCoreOS developed container-focused infrastructure software, including the lightweight Container Linux operating system, the etcd distributed key-value store, and the Tectonic Kubernetes platform. Acquired by Red Hat in 2018, with its technology folded into OpenShift.

Companies working in the same space as FastJVM.

Legal entities · 1

corporate structure
Manycore Corporation

In the news

AUTODOC: Open-source AI writing your Javadocycombinator.com · Sep 2025Inboxbooster: Get back to the inboxycombinator.com · Mar 2023Inboxbooster: Free Inbox Monitoringycombinator.com · Sep 2022

Frequently asked questions

What does FastJVM do?
FastJVM develops a faster Java Virtual Machine (JVM) that outperforms existing implementations like HotSpot and GraalVM on certain workloads. The company focuses on JVM optimization and compilation technologies for developers building Java applications.
Who founded FastJVM?
FastJVM was founded by Marcus Engene, Nicolas Toper in 2016.
Who are FastJVM's investors?
FastJVM's investors include Y Combinator, Agrolimen Ventures, Coyote Ventures, Kima Ventures.
Where is FastJVM headquartered?
FastJVM is headquartered in San Francisco, US.