Hydnum Steel
Agent21Agent Readiness: 21/100. Bottom 25%. Measured by StartupHub.ai. Median 41.Trust78Data Trust: 78/100. Above median. Measured by StartupHub.ai. Median 61.Developing Spain's first green steel plant, producing high-quality, low-carbon steel using renewable energy and hydrogen.
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About
Hydnum Steel is a pioneering project focused on establishing a state-of-the-art green steel production facility in Puertollano, Ciudad Real, Spain. The plant aims to produce high-quality hot-rolled flat steel with significantly reduced CO2 emissions, targeting an initial production of 1.5 million tons per year, and reaching up to 2.6-2.7 million tons per year in its full operational phases. The company's core value proposition lies in its commitment to decarbonizing the steel industry by exclusively using 100% renewable energy and green hydrogen for direct reduced iron (DRI) production and electric arc furnaces (EAF).
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Key facts
- Website
- hydnumsteel.com
- Headquarters
- Abanto y Ciérvana, Basque Country, Spain
- Founded
- 2022
- Employees
- 14
- Total funding
- $68M (Grant)
- Business model
- B2B
Funding rounds
| Date | Round | Amount | Lead investors |
|---|---|---|---|
| 23 Apr 2025 | Grant | $68M |
Tech stack
Detected on hydnumsteel.com, last scanned 31 Oct 2026. Run your own scan
- Frontend
- jQuery, Tailwind CSS, Bootstrap
- Analytics
- Google Analytics 4
- SEO
- Yoast SEO
- CMS / Builders
- WordPress
- Email provider
- Microsoft 365
- Video / media
- Vimeo
- Affiliate program
- Self-hosted affiliate
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Frequently asked
What does Hydnum Steel do?
Hydnum Steel also emphasizes sustainable water management through greywater reuse and zero liquid discharge systems, and integrates advanced industrial digitalization, including AI-supported Digital Twin technology, for efficient and smart production. The target users are industries requiring low-carbon steel, such as automotive, construction, and renewable energy sectors, both domestically in Spain and across Europe. Agustín Escobar was a key driving force behind the project, and Eric Vitse served as CTO before his passing in August 2023.
Is Hydnum Steel trustworthy and reputable?
StartupHub's Data Trust & Reputation score for Hydnum Steel is 78 out of 100, a generally safe rating, based on site security posture, privacy practices, malware and phishing checks, and public reputation signals.
How much funding has Hydnum Steel raised?
Hydnum Steel has raised a total of $68M in funding. The most recent round on record is Grant.
How many employees does Hydnum Steel have?
Hydnum Steel has approximately 14 people on record.
Does Hydnum Steel have an affiliate program?
Yes, Hydnum Steel has an affiliate program. The program runs on Self-hosted affiliate. Register here: www.hydnumsteel.com/affiliates
Public record
SEC filings, insider activity, nonprofit links and pay benchmarks for Hydnum Steel
