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Fractile Tech Stack

AI inference accelerator chips and system software for large language models

Computer Hardware Manufacturing London, London 51–200 employees Founded 2022 Privately Held

Fractile designs custom silicon and systems software purpose-built for AI inference at scale. The stack reflects a full-stack hardware play: SystemVerilog, MLIR, PyTorch, vLLM, plus low-level tools (Cadence Innovus, Synopsys ICC2, Calibre) for chip design and verification. The company is actively adopting Rust and SystemC while hiring heavily in engineering (senior-weighted, UK and Taiwan), and their project list centers on pre-silicon modeling, RTL specification, Linux kernel drivers, and data-center deployment—indicating they are moving from design into manufacturing and production scaling.

Tech Stack 50 technologies

Core StackPython Rust Docker Kubernetes PyTorch PCIe Gen 6 PCIe 5.0 JTAG SystemVerilog Cocotb Verilator Bazel UVM SystemC C++23 ARM x86-64 RISC-V MLIR C/C++ vLLM SGLang QEMU Linux Kernel Apple Silicon Cadence Innovus Synopsys ICC2 Calibre TCL Perl+20 more
AdoptingRust UVM SystemC

What Fractile Is Building

Challenges

  • High-volume manufacturing
  • Deploying ai accelerators into data centres
  • Delivering product at scale
  • Meeting demand for high-performance ai silicon
  • Accelerating large language models
  • Scaling production with manufacturing partners
  • Yield ramp acceleration
  • Meeting demand and scaling product delivery
  • Improving tape-out quality
  • Bringing software concepts to hardware workflows

Active Projects

  • Develop systems software for ai accelerator hardware
  • Develop and maintain rtl specifications for high-performance systems
  • Launch ai accelerators into data centre deployment
  • Pre-silicon modeling of ai acceleration hardware
  • Early software development using models of products in development
  • Runtime stack for ai accelerators
  • Ai accelerator deployment
  • Linux kernel driver in rust
  • Ai accelerator chip test solutions
  • Dft architecture for large multi-core ai accelerator soc

Hiring Activity

Accelerating50 roles · 25 in 30d

Department

Engineering
48
Manufacturing
2

Seniority

Senior
38
Junior
4
Lead
4
Mid
3
Staff
1
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About Fractile

Fractile, founded in 2022 and based in London, develops custom silicon and software to improve inference speed and cost for large language models. The company addresses a hardware gap: while existing processors excel at training AI models, inference—the repeated inference phase that dominates production workloads—remains bottlenecked by memory-to-computation bandwidth. Fractile's architecture fuses computation with memory and spans the entire stack from chip design through Linux kernel drivers and deployment orchestration. The product targets data-center operators and cloud providers running frontier models at scale. Operating as a 51–200 person privately held company, Fractile is in active scaling mode, with manufacturing partnerships and yield ramp as primary operational challenges.

HeadquartersLondon, London
Company Size51–200 employees
Founded2022
Hiring MarketsUnited Kingdom, Taiwan

Frequently Asked Questions

What is Fractile's tech stack?

Fractile uses SystemVerilog, Python, and C++ for core development; Cadence Innovus and Synopsys ICC2 for chip design; Verilator and Cocotb for simulation; PyTorch, vLLM, and SGLang for AI workload modeling; and Kubernetes, Docker, and Linux Kernel for deployment and driver software.

What is Fractile working on?

Fractile is developing AI accelerator chips, RTL specifications, pre-silicon modeling tools, Linux kernel drivers in Rust, runtime software stacks, and deploying accelerators into data centers. Current focus includes manufacturing scale, yield ramp, and bringing inference workloads (vLLM, SGLang) to production hardware.

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How this profile is built

Fractile's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.