hpc
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Linaro keeps good hardware from growing old
The Arm software specialist helps manufacturers escape ageing code and keep products useful. Now it is changing its own business model, pairing paid engineering with a free collaboration forum.
Global Unichip Corporation (GUC)
The Taiwanese design house that quietly builds other people's AI chips - and reserved 60,000 CoWoS wafers to keep doing it.
CoreWeave
The crypto-mining startup that became the picks-and-shovels supplier of the AI boom - renting Nvidia GPUs to the labs building the future, one megacluster at a time.
3D Glass Solutions, Inc.
3D Glass Solutions (3DGS) is an Albuquerque, New Mexico advanced-packaging company that turns its patented photosensitive APEX glass-ceramic into precise 3D microstructures for chips. Its wafer-level glass substrates, interposers and integrated passive devices serve RF, photonics, high-performance computing and defense customers who need low-loss, high-frequency, thermally stable packaging. Spun out of technology developed at Sandia National Laboratories and led by semiconductor veteran Babu Mandava, the ISO 9001 / AS9100 certified foundry has raised more than $54 million, counts Intel Capital, Applied Ventures and Lockheed Martin Ventures among its backers, and is a partner in DARPA's Next-Generation Microelectronics Manufacturing (NGMM) program for U.S.-based 3D heterogeneous integration.
Ayar Labs
Ayar Labs is a San Jose-based semiconductor company building optical input/output (I/O) technology that moves data between chips using light instead of copper. Its silicon-photonics chiplets - the TeraPHY optical engine and the SuperNova multi-wavelength light source - are designed to be co-packaged directly with GPUs and other processors, letting AI and high-performance-computing systems scale across thousands of accelerators with far higher bandwidth and far lower power than electrical interconnects. Spun out of a DARPA-funded university research effort, the company raised a $500M Series E in 2026 with backing from NVIDIA and AMD.
Simr (formerly UberCloud)
Simr, formerly UberCloud, is a Los Altos, California company that automates engineering simulation in the cloud. Its SimOps (Simulation Operations Automation) platform lets design engineers run compute-heavy simulations - CFD, FEA and multi-physics workloads - on any cloud or on-premise hardware with leading tools like Ansys, Siemens and Dassault, without wrestling with the underlying HPC infrastructure. Founded in 2014 by Burak Yenier and Wolfgang Gentzsch, the company raised a $20M Series A in 2024 and counts major manufacturers and tech giants among its users.
Parallel Works
Parallel Works is a Chicago-based software company, spun out of Argonne National Laboratory in 2015, that builds ACTIVATE - a hybrid multi-cloud control plane for high-performance computing and AI. The platform gives researchers, engineers and defense teams a single interface to provision, orchestrate and share compute across on-premises clusters and the major clouds (AWS, Azure, Google Cloud, Oracle), with built-in cost governance, role-based access and security controls. In 2025 ACTIVATE's High Security Platform became the first hybrid multi-cloud solution to earn a U.S. Department of Defense IL5 Authority to Operate.
minds.ai
minds.ai builds AI systems for semiconductor manufacturers. Its Maestro platform - powered by the DeepSim engine - uses reinforcement learning, supervised learning, and generative AI to optimize fab scheduling, planning, forecasting, and control inside 24/7 wafer-fabrication plants. Founded in 2014, the company is based in Santa Cruz, California, with offices in Amsterdam and Bangalore.
Ceremorphic, Inc.
Ceremorphic is a San Jose-based fabless semiconductor startup building energy-efficient AI supercomputing silicon. Founded in 2020 by serial entrepreneur Venkat Mattela, the company taped out a first-of-its-kind 5nm HPC/AI chip on TSMC's most advanced node and is applying the same Hierarchical Learning Processor architecture to data center AI, robotics, automotive, and analog-AI-driven drug discovery.
Rescale
Rescale is a San Francisco-based digital engineering platform that turns high-performance computing into an on-demand cloud utility. Founded in 2011 by ex-Boeing engineer Joris Poort and Adam McKenzie, it gives scientists and engineers at companies like Samsung, Arm, General Motors Motorsports, and the U.S. Department of Defense a single workbench for simulation, AI physics, and multi-cloud orchestration.
WEKA
WEKA builds a software-defined data platform engineered for AI and HPC workloads, feeding GPUs and CPUs with low-latency, high-throughput storage across on-prem, cloud, edge and hybrid environments. Its NeuralMesh architecture underpins hundreds of the world's largest AI deployments, including model builders, hyperscale neoclouds, and Fortune 50 enterprises.
Avicena Tech
Avicena Tech builds LightBundle, a microLED-based optical interconnect that moves data between chips at terabit-per-second densities while sipping sub-picojoules of energy per bit. The Sunnyvale company is betting that the GPU clusters powering AI need a new physical layer - one that copper can't deliver and traditional silicon photonics can't match on power.