ClearSign Technologies (CLIR): Initiation of Coverage Review: A Non-Discretionary NOx Compliance Story with an 80% Cost Edge

In this episode, join Tim Gerdeman, Vice Chair & Co-Founder and Chief Marketing Officer at WTR, and Peter Gastreich, Managing Director - Energy Transition and Sustainable Investing, as they dive into WTR's Initiation of Coverage report for ClearSign Technologies (NASDAQ: CLIR). ClearSign is an industrial combustion innovator addressing a non-discretionary regulatory driver: NOx emissions compliance. Discover how ClearSign's burner technology tackles both NOx pathways at a fraction of conventional costs, the regulatory cycle expanding from California to Texas and beyond, its manufacturing partnership with Zeeco, and the growing addressable market across refining and ethylene. Peter also shares WTR's financial forecasts for CLIR, including its path to its first annual net profit and rapid scaling beyond. 

Transcript

SPEAKER_01 0:00

Welcome to the WTR Small Cap Spotlight Podcast. I'm your host, Tim Gerdeman, Vice Chair and Co-Founder and Chief Marketing Officer of Water Tower Research. In today's flashcast, I'm joined by my colleague and WTR Senior Energy Transition and Sustainable Investing Analyst, Peter Gastreich. Peter will share some insights from his initiation of coverage report on ClearSign Technologies, NASDAQ Ticker Symbol, C L I R. Good morning, Peter, and thanks for joining. Morning, Tim. It's great to be here. So, Peter, let's kick things off with the basics. What does ClearSign do and why should investors be paying attention?

SPEAKER_00 0:38

Well, ClearSign makes advanced industrial burners for oil refineries, petrochemical plants, and midstream operators. These burners produce far less Knox pollution than anything else on the market. A key hook is that the demand driver is Knox regulation, not carbon policy. And that distinction is important for investors to understand. Knox rules are rooted in public health law. They've been tightening for decades and are completely unaffected by changes in climate policy. So at the end of the day, operators must comply or face fines and shutdowns. And it's a non-discretionary market. Very important to understand that.

SPEAKER_01 1:18

Thanks for that delineation. Can you tell us more about what's driving the regulatory cycle right now?

SPEAKER_00 1:24

Well, California is the pace setter, and it's where ClearSign has already earned two formal best available control technology designations, which is the gold standard in terms of emissions permitting. LA based refineries face some of the world's strictest NOx limits, and ClearSign is essentially the only way to get there without extremely expensive add-on systems. Texas is the next wave with the Houston-Galveston area actively tightening. Behind that, you have Salt Lake City, Pennsylvania, Colorado, and eventually Europe. It's really a multi-decade compounding cycle here, Tim.

SPEAKER_01 2:01

I'm curious, what makes ClearSign's technology fundamentally different from the other players?

SPEAKER_00 2:07

Most industrial burners tackle only one of the two chemical pathways that create NOx. ClearSign addresses both of them, which frequently eliminates the need for costly post-combustion treatment systems entirely. The cost difference is dramatic. On a recent Supermajor project, the conventional compliance option was estimated at roughly $50 million. ClearSign's total total installed cost was estimated at roughly $50 million. ClearSign's total installed cost came in at a fraction of that, at an 80% cost advantage on a single heater that gets refinery engineers' attention very fast.

SPEAKER_01 2:45

Putting on my investor hat for a second, Peter, how large is the TAM or total addressable market?

SPEAKER_00 2:51

It is substantial and growing. The near-term focus is refineries and petrochemical plants in California and Texas, as I mentioned. There you have tens of thousands of burners, which will need upgrading over the next compliance cycle. ClearSign just commercialized new burner geometries that management believes will expand their reachable market by 20 to 25% and open entry into ethylene production. Ethylene is a whole additional market, roughly the size of refining. So that alone pretty much doubles the opportunity set. Extend that globally in the long run, opportunity is very large.

SPEAKER_01 3:31

What can you tell us about the Gen 2 burner and why it matters?

SPEAKER_00 3:35

The Gen 2 achieves ultra-low NOx across the full spectrum from natural gas to pure hydrogen. That matters because as refineries blend more hydrogen to decarbonize, NOx from existing burners actually goes up. So heaters and compliance today can fall out just by changing fuel mix. ClearSigns Gen 2 stays compliant through that entire transition, creating what we see as a second demand wave on top of the baseline trajectory driver. An industry demo day in April drew major refineries and national energy companies, and the feedback was very strong.

SPEAKER_01 4:12

So I noticed a reference to Zico. Who is Zico and how central are they to the ClearSign business model?

SPEAKER_00 4:20

Well, Zico is one of the world's two largest combustion equipment manufacturers and is based in Tulsa, which is why ClearSign itself relocated there. They manufacture ClearSign's burners, host customer demonstrations at world-class test facilities, and sell ClearSign products as a co-branded offering through their global sales force. Critically, all that infrastructure sits on Zico's balance sheet. Orders come in with cash up front. So projects are largely self-funding. It's generally asset-light model that scales very well.

SPEAKER_01 4:55

I'm curious about their commercial pipeline and where that stands and what should investors be watching for moving forward with announcements.

SPEAKER_00 5:03

Well, the pipeline is building well, around 225 burners worth of active proposals. The two headline engagements are large orders from a California Supermajor and a Texas Supermajor, both new geometries, both ahead of schedule. A major engineering firm is also channeling a series of projects from a single large refinery directly to ClearSign, which speaks to the company's growing reputation in the industry. The biggest near-term catalyst is the October 2026 Gulf Coast startup. Several prospective customers are explicitly waiting on that reference before they commit, Tim.

SPEAKER_01 5:42

Okay. And then just wrapping things up, Peter, finally and frankly, very importantly, what is the financial picture and pathway to breakeven?

SPEAKER_00 5:49

Well, ClearSign had its best revenue year ever in 2025, up around 44% year on year, extending three consecutive years of strong growth. Breakeven is tied to a specific burner run rate. And with orders now in the 30-plus unit range and the pipeline building, that milestone is becoming more realistic. So our forecasts show meaningful revenue growth and margin expansion over the next several years as that install base compounds. We see the company hitting its first annual net profit in 2029 and rapidly scaling to exceed $30 million by 2031. For perspective, that level of net profit in 2031 exceeds the total current market cap of the company today. So the balance sheet is clean with a solid cash position and no long-term debt. And as mentioned, the projects and growth are structured to be largely self-funding. So that's a very good aspect of this of the company.

unknown 6:47

Great.

SPEAKER_01 6:48

Well, always good to have you on the podcast, Peter, and thank you for joining us today to discuss Clear Sign Technologies. Thank you for listening, and don't forget to subscribe, as well as visiting WW Watertower Research.com to stay up to speed on the company's small cap written research reports, podcasts, fireside chats, industry specific symposiums, and conference schedules. We will see you next time for another edition of the WTR Small Cap Spotlight Podcast. Finally, a special thanks to the producer and editor of the podcast, Krista Fitzpatrick.