01 Rust + Python
Rust Accelerators
fast-litellm
Drop-in Rust acceleration for LiteLLM. Faster connection pooling, rate limiting, and dramatically lower memory use.
Independent engineering studio · Edinburgh, UK
Engineering software for the real world.
We design and harden AI agent systems, performance-critical software, platform integrations and open-source developer tools.
Rust · Python · TypeScript
Source · tests · runbooks
Delivery system / 01 From ambiguity to ownership
active
01
Frame the boundary Outcome · users · constraints
scope 02
Build the path Interfaces · data · failure modes
build 03
Prove the change Tests · traces · cost · limits
verify 04
Transfer ownership Source · recovery · runbooks
ship Legal entity Neul Labs Limited
Companies House SC767862
Established 2023
Delivery UK & international
What we do
The engineering around the model matters.
Useful AI products depend on everything surrounding inference: boundaries, data, latency, observability, recovery and the people who will operate the system after launch.
01
AI agent systems
Architecture, orchestration, evaluation and production hardening for systems where model output is only one part of the product.
Explore AI systems ↗ 02
Performance engineering
Profiling, native acceleration and reproducible benchmarks across Rust, Python and mixed-language systems.
Explore performance ↗ 03
Platform integrations
Secure APIs, data flows and automation designed with failure modes, observability and operator ownership in view.
Explore integrations ↗ 04
Open-source developer tooling
Focused CLIs, SDKs, compatibility layers and release systems that engineers can inspect, adopt and maintain.
Explore developer tooling ↗ How we work
Evidence, not theatre.
We make technical claims inspectable. The baseline, method, trade-offs and limitations travel with the implementation—not in a separate presentation that disappears at handover.
Read our engineering evidence method- 01
Frame the decision
Define the outcome, users, constraints, failure budget and evidence needed before choosing an implementation.
- 02
Build the smallest useful path
Use explicit interfaces and reversible choices so learning arrives before complexity compounds.
- 03
Measure the change
Preserve the baseline. Report tests, traces, cost, security assumptions and limitations together.
- 04
Transfer ownership
Leave source, recovery paths, runbooks and operating decisions that the next engineer can follow.
Selected public work
Source you can inspect.
A small selection from our source-verified catalogue across agent infrastructure, performance, policy and developer tooling.
View the complete catalogue ↗ 02 Rust
Agent Infra & Runtime
brat
Multi-agent harness for AI coding tools. Crash-safe state, parallel execution, one CLI.
03 Python
Agent Infra & Runtime
ormai
Give your AI agents database access without the risk. Policy-enforced ORM tools for Python and TypeScript.
04 Rust
Dev & Build Tools
stout
10–100× faster, Rust-based drop-in replacement for Homebrew.
Build with Neul Labs
Good partnerships start with a real thing to build.
We are open to platform integrations, joint technical solutions, scoped delivery, open-source ecosystem work and certification-led partner programmes.
NEUL / LABS Engineering partner
01 Product teams Architecture · delivery · hardening
02 Platforms Integrations · enablement · tooling
03 R&D programmes Prototypes · evidence · transfer
Have a difficult system?
Bring us the boundary that keeps breaking.
Tell us what has to work, what is failing today and what evidence would make the next decision easier.
Start with the problemFrequently asked questions about Neul Labs
What is Neul Labs?
Neul Labs Limited is a UK software engineering studio registered in Scotland. It builds AI agent systems, performance-critical software, platform integrations and open-source developer tooling.
What engineering services does Neul Labs provide?
Neul Labs provides scoped AI agent systems engineering, Rust and Python performance engineering, secure platform and API integrations, and open-source developer tooling. Each engagement is governed by a written scope.
Does Neul Labs work with technology partners?
Yes. Neul Labs is open to technical integrations, joint solution development, delivery collaboration, open-source ecosystem work and certification-led partner programmes. Provider status is only displayed after it has been awarded.
Is Neul Labs open source?
Neul Labs publishes open-source engineering work through its GitHub organisation and linked project repositories. Availability and licence are project-specific and should be verified on the relevant repository.
Where is Neul Labs based?
Neul Labs Limited is registered in Scotland and works remotely with organisations in the United Kingdom and internationally.
Is Neul Labs the same as Neuland Laboratories?
No. Neul Labs Limited is a UK software engineering company. Neuland Laboratories Ltd. is a separate Indian pharmaceutical manufacturer. The two companies have no connection.