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HT Materials Science
Smarter Heat Transfer Fluids
About HT Materials Science
HT Materials Science (HTMS) is the global leader in smart heat transfer fluids for commercial and industrial heating and cooling systems. We help any business with a high heating or cooling demand to make significant energy and carbon savings – from commercial offices and data centres through to manufacturers, pharmaceutical & healthcare facilities and more.
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Our patented Maxwell™ product is a drop-in nanofluid additive that’s proven to enhance the heat transfer of a base fluid by more than 15%. It delivers immediate results (with no costly downtime needed), making HVAC systems instantly more efficient and sustainable.
Maxwell™ can reduce a company’s energy costs by 12-15% or more and can also increase a system’s capacity. This means businesses can get more out of their existing equipment for longer, as their heating or cooling demands increase. Our technology is already being successfully used by a host of major companies across the US, EMEA and Asia, bringing them enhanced efficiencies, cost savings and lower carbon footprints as a result.
At HTMS we proudly work with some of the best science and engineering minds in the world, with offices in Dublin, Lecce (Italy) and New York. R&D is at the heart of everything we do, and we’re constantly developing future technologies to help businesses reduce energy consumption and their environmental impact.
At a glance
- Status
- Operational
- Founded
- 2018
- Headquarters
- Dublin, Ireland
- Employees
- 33
- Open positions
- None listed
- Dealroom signal
- 84.9/100
- Industry
- Real Estate
- Sub-industry
- Energy Efficiency
- Sector
- Energy, Material Technology, Big Data and Analytics, Sustainable Development Goals, Cooling Tech, Urban Tech, Industrial Technology, Advanced Materials
- Technology
- Hardware, Deep Tech, Nanotech
- Business model
- Manufacturing
- Client focus
- b2b
Latest news
Press, funding announcements and product moves mentioning HT Materials Science.
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| GRANT✓Other financing | Dec 2025 | $2.5M | — | Government of Ireland | ↗ |
| EARLY VC✓Equity / VC | Dec 2025 | $0 | — | Peak Sustainability Ventures | ↗ |
Financials
Revenue, earnings and other financial measures where available. Years marked “E” are estimates.
Growth signals
Latest recorded traffic for HT Materials Science is 220 monthly website visits, down 90% over the last three months. HT Materials Science's team grew 17.9% over the past year.
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed2 investors entered at this stage
Enterprise Ireland
Government of Ireland
Series A4 investors entered at this stage
Aramco Ventures
Barclays Climate Ventures
CDP Venture Capital
Peak Sustainability Ventures
Other known investors2 additional known investors
EIT Climate KIC
MITO Technology
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about HT Materials Science on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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