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Become a sponsor to Sterfive SAS

@node-opcua

Sterfive SAS

node-opcua
France

Keep the OPC UA stack your factory depends on alive and current.

If your team ships products that talk OPC UA from Node.js, there's a good chance you're running node-opcua in production. Mercedes-Benz does. So do automotive Tier-1s, energy operators, and IoT platforms across Europe, North America, and Asia.

node-opcua is maintained primarily by one person at Sterfive in France. Every Node.js LTS upgrade, every OPC UA spec revision, every CVE patch comes from that work. Sustaining sponsors are what let us keep that engineering time pointed at the open project instead of being fully absorbed by paid contracts.

By the numbers

  • 🏭 In production at Mercedes-Benz and dozens of industrial deployments worldwide
  • 📦 1,600+ stars · 3.5M+ npm downloads · 300K/month and growing
  • 🔒 12+ years of continuous development, 3,000+ tests, 97% coverage
  • 🌍 Windows, Linux, macOS, Alpine, browser — and the full ecosystem: node-opcua-pki, node-opcua-crypto, OPC UA Modeler

🌟 Founding Sponsors — open until end of Q1 2026

The first 5 organizations to sponsor node-opcua at Bronze tier ($250/month) or above are recognized as Founding Sponsors of the program. This status is permanent and will not be available to any sponsor joining after Q1 2026 — at any tier, including Platinum.

Founding Sponsors receive, in addition to their tier benefits:

  • 🏛️ "Founding Sponsor" designation on node-opcua.github.io and the GitHub README, distinct from regular sponsor recognition
  • 📜 Permanent listing in the project's Founding Sponsors honor roll, including after the program closes
  • 🗣️ Direct input on the 2026 roadmap and unlock priorities
  • 🤝 A standing annual call with the maintainer (independent of tier-level benefits)

This program exists because a small number of industrial users have quietly depended on node-opcua for years. Founding Sponsor status is how the project formally acknowledges that history — and gives those organizations a permanent seat at the table as node-opcua scales.

Interested? Email contact@sterfive.com or sponsor directly via the tiers below.

What your sponsorship funds — concretely

Sponsorship in 2026 directly funds:

  • OPC UA 1.05 continued migration (Q2–Q3 2026)
  • Security patch SLA for the open repo — currently best-effort, sponsors make it predictable
  • OPC Foundation participation — representing the Node.js community in spec discussions
  • Node.js 24 LTS compatibility and ongoing runtime upgrades

Sponsorship vs. commercial support — what's the difference?

GitHub Sponsorship Sterfive Support Contract
Funds The open project Your specific deployment
Budget line Marketing / OSS / community Engineering / vendor support
You get Visibility, gratitude, sustained upstream SLA, priority response, certified builds, consulting
Best for Companies that use node-opcua and want it stay healthy Companies that need guaranteed response times

Most of our industrial users do both. For commercial support, certified builds, or dedicated SLAs:

@node-opcua

$2,500/month sustained funds the baseline engineering time needed to keep node-opcua production-ready, independent of paid contracts. This is the first step in a staircase of community unlocks, each triggered when the corresponding MRR is sustained for 12 consecutive months: $2,500/mo unlocks free certified build access for sponsors at $250+ ; $5,000/mo relicenses the OPC UA PubSub module under MIT ; $10,000/mo hires a second engineer part-time on the open project ; $40,000/mo gradually relicenses Sterfive's commercial portfolio under MIT and funds official OPC Foundation certification. See the full roadmap on the profile above.

Featured sponsors

@mercedes-benz

Meet the team

  • @erossignon
    Etienne erossignon
    Founder & CEO of Sterfive. 12+ years building the most complete OPC UA stack for Node.js.

Featured work

  1. node-opcua/node-opcua

    Unlocking the Full Potential of OPC UA with Typescript and NodeJS - http://node-opcua.github.io/

    TypeScript 1,651
  2. node-opcua/node-opcua-isa95

    ISA95 extension for node-opcua server

    JavaScript 23
  3. node-opcua/opcua-commander

    a opcua client with blessed (ncurses)

    TypeScript 266
  4. node-opcua/node-opcua-pki

    the OPCUA Certificate store and PKI used by node-opcua

    TypeScript 14
  5. node-opcua/node-opcua-crypto

    node-opcua certificate tools & encryption/signature support

    TypeScript 5

Learn more about sponsoring developers and organizations.

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$ one time

You'll receive any rewards listed in the $100 one-time tier. Additionally, a Public Sponsor achievement will be added to your profile.

$100 one time

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One-time Supporter

A one-time thank you to keep node-opcua healthy.

✅ Sponsor badge on your GitHub profile (1 month)
✅ Our sincere gratitude

For larger one-time sponsorships with company recognition (logo, README placement, formal invoice with Sterfive SIRET), please see "One-time and annual sponsorship" on the profile above.