Overview
Founded in 2024 in Brussels, Nexus builds tooling for enterprises to deploy, manage, and orchestrate AI agents in production environments. The platform addresses the operational gap between experimenting with AI agents in a prototype and running them reliably at enterprise scale, covering concerns such as access control, observability, failure handling, and integration with existing enterprise systems.
The EUR 3.7M seed round from General Catalyst and Y Combinator positions Nexus as one of the highest-pedigree Belgian AI startups in recent years. Y Combinator participation in particular signals international ambition and access to Silicon Valley networks.
Founded in 2024, Nexus is among the youngest companies in the Belgian ecosystem to attract this caliber of backing, reflecting the speed at which the Enterprise AI infrastructure category is developing.
Funding history
- 2024: Seed, EUR 3.7M from General Catalyst and Y Combinator
Key people
In the news
- Your fixed-bed bioreactor is full of cells you cannot count, not without stopping the run, breaking open the bed, and destroying it in the process. What if you could get a reliable estimate continuously, straight from data the bioreactor is already generating? That is the idea behind soft sensing in Antleron Nexus. We combine process signals you already track (glucose, lactate, oxygen consumption) to estimate something that is otherwise nearly impossible to measure in-line. The output: a live cell density estimate, with confidence
- 𝙃𝙖𝙣𝙙 𝙮𝙤𝙪𝙧 𝙥𝙧𝙤𝙘𝙚𝙨𝙨 𝙙𝙖𝙩𝙖 𝙩𝙤 𝙖𝙣 𝙚𝙭𝙩𝙚𝙧𝙣𝙖𝙡 𝙥𝙖𝙧𝙩𝙣𝙚𝙧 𝙖𝙣𝙙 𝙤𝙣𝙚 𝙦𝙪𝙚𝙨𝙩𝙞𝙤𝙣 𝙘𝙤𝙢𝙚𝙨 𝙪𝙥 𝙖𝙡𝙢𝙤𝙨𝙩 𝙚𝙫𝙚𝙧𝙮 𝙩𝙞𝙢𝙚: 𝙬𝙝𝙤 𝙤𝙬𝙣𝙨 𝙬𝙝𝙖𝙩 𝙘𝙤𝙢𝙚𝙨 𝙤𝙪𝙩 𝙤𝙛 𝙞𝙩? Fair question, and it deserves a precise answer. The model we build for you and deploy on Antleron Nexus is built entirely on your process data and your biological context. It is yours exclusively, never shared or reused across clients. The expertise we apply to build it is ours to bring to every client, but
- The questions you need answered on day one of your CGT program are not the ones you will be asking at tech transfer, but they can run on the same model. Early on, you are exploring and building understanding. Later, you are defining and tightening your design space for manufacturing. The hybrid model we build for you and deploy on Antleron Nexus is designed to serve both, and everything in between. It does not power a single tool you use once and shelve. It becomes the engine behind a growing set of applications your team can use
- I’d never hire 9 more engineers again… I’ll just give 1 engineer 9 Claude Code subscriptions. Our new setup at Nexus: → The entire team has Claude Max plans. → Our best engineers have 10 subscriptions. → I have 6 and everyone else has 1. Let’s do some quick math: > 10 subs cost cost $2k/month on top of salaries. > Around 25% of what we pay our engineers. > So $2k/month to make them 10x more efficient. In my personal experience… This has worked 100x better than traditional structures. Why pay for 9 decent engineers When I could get 1
- More to discover. More to experience. More reasons to join! What's new at Fleet Europe Days this year? Caroline Thonnon, Co-CEO of Nexus Communication, gives us a sneak peek at what awaits participants in Lisbon! 🌍 An inspiring Main Stage programme featuring influential leaders shaping the future of fleet and mobility. 🎓 The Fleet Box, hosting IFMI workshops for fleet managers and exclusive Corporate Bootcamps led by selected partners. 💡 The Start-up Arena and Start-up Village, where innovation and fresh ideas take centre
- Some of the smartest and highest grit people I've met in my YC batch. Working with them for recruiting at Nexus (YC F25) and have been amazed by the quality of the candidate they can turn around in such a short amount of time (compared to other recruiters I've worked with). Cannot but fully recommend them !
- Two to three months. That is roughly how long it takes to go from a first conversation to custom digital tools running in your operators' hands on Antleron Nexus. Here is what happens in between. 𝗦𝘁𝗲𝗽 𝟭: Map the risk. We identify which critical process parameters actually matter for your questions, and model those, not just everything that is measurable. 𝗦𝘁𝗲𝗽 𝟮: Design a lean experiment. A compact, scaled-down, high-throughput setup tailored to your process. Because our hybrid models capture dynamics through intermediate
- There’s plenty to explore at our booth #1064 at #ECOC2026 today! 😉 We’ve got some awesome live demos going on, including our E/O Co-design Integration for Cadence, Nexus, Irys DRC, and AI workflows. Drop by, say hi, and let's chat! 👋 ECOC Exhibition
Backers
General Catalyst
Global venture capital and investment firm with a New York office
Related profiles
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