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How did HG Ventures quietly become one of the most active water tech investors on the planet, without even calling itself a water VC?HG Ventures is the corporate venture capital arm of The Heritage Group, a 100-year-old, family-owned Indianapolis conglomerate active in asphalt, quarries, environmental services and specialty chemicals. With $350M in assets, the fund deploys around $50M a year across 41 portfolio companies and 7 sectors, and ranks 5th globally in water tech by deal count despite water being only 18% of its thesis.Ginger Rothrock holds a PhD in chemistry from UNC Chapel Hill, co-founded the NASDAQ-listed pharmaceutical company Liquidia, was promoted to Managing Director of HG Ventures in December 2025, and is a Global Corporate Venturing Rising Star and Kauffman Fellow with deep expertise in industrial water, industrial wastewater treatment, and corporate venture capital in cleantech.
The First Water Sector Unicorn Wants to IPO. But Wall Street kinda forgot how to buy water... Early-stage water tech funding quadrupled in seven years. Private equity's share of water M&A doubled in a decade, with a record 165 PE-led acquisitions in a single year. The bench of PE-owned water platforms grew from 42 companies in 2015 to nearly 600 in 2025. And the sector just minted its first twice-unicorn - Gradiant - with a Series E at a $2 billion valuation on Day 1 of the Global Water Summit 2026! So, will Gradiant IPO?Four all-time highs at once... but the fifth dimension - the public market - went the other way. IPOs in the 2020s are a pale echo of the 2010. So I flew to Madrid to ask the people building the machine (the VCs, the PE platforms, the strategics, the bankers, the entrepreneurs) a single question: is this closed-loop water-capital machine a feature of a mature sector, or a $300 billion pressure cooker about to crack?
On April 30, 2026, CRH plc (NYSE: CRH) announced a $700 million agreement to acquire Axius Water from KKR and XPV Water Partners - instantly making the Irish-American building materials giant one of the largest water infrastructure players in North America. If CRH acquires Axius, what's next?Most investors missed it, so I thought I'd decode it! Here are the 10 things you need to see.So you got it, CRH acquires Axius. Here's the deal in 30 seconds: • Buyer: CRH plc - a $77B market cap building materials company most water investors don't track • Target: Axius Water - a wastewater treatment platform built by KKR and XPV Water Partners through a multi-year roll-up • Price: $700M (reported) • Sellers: KKR (Global Impact Fund) and XPV Water Partners • Strategic logic: bolts wastewater treatment onto CRH's existing water infrastructure portfolio (Hydro International, Oldcastle Infrastructure) What's actually new here - and why it matters for water investors: 00:00 - On your Bingo Card? 02:30 #1: The Cast07:35 #2: The Substance11:40 #3: The Number16:23 #4: The Timing20:54 #5: The Macro Reality24:40 #6: The Credibility28:26 #7: Inside the Platform32:28 #8: The Synergy Story35:17 #9: The Risks39:58 #10: The Sector Signal
Every analyst, every think tank, every consulting deck has an opinion on AI's water footprint (and overall on AI and Water)But nobody bothered to ask the people actually watching the videos, posting the comments, and shaping the narrative. You'd need to be mad to do that, right?So I read 2,540 of them.
Everyone says AI is drinking the planet dry, right? Well, the numbers say your morning coffee uses 29,600× more water than a ChatGPT prompt! In this episode, I sit down with Alex Passini to pressure-test the dominant narrative around AI's water footprint - and what we found completely flips the story the media is telling. Here's what most "AI water crisis" headlines miss: → A single ChatGPT prompt uses roughly 16 milliliters of water. One cup of coffee uses ~140 liters when you count the beans. That's a 29,600× gap. → Of the water a hyperscale data center consumes, ~75% isn't used by AI at all — it's used upstream for the energy that powers it. Blame the grid, not the GPU. → One banana = ~6,250 ChatGPT prompts. One almond = ~12 prompts. The water-per-prompt math is rounding-error territory next to your lunch. → Florida already reuses 800 million gallons/day of treated wastewater. Data centers aren't the threat - they're an accelerant for the water reuse capex the sector has been waiting twenty years for. If you're an investor trying to figure out whether AI's water story is a real thesis or a media artifact, this episode gives you the framework (and the numbers) to decide.
Who Buys the First Data Center Water Company? And When Does the Repricing Start? Data center water treatment is a $1.1 billion market growing nearly 15% per year, with 60% of spending recurring - generating an "infinite money glitch" for the righty designed water tech companies. So, strategic buyers, private equity sponsors, and VC-backed platforms are racing to consolidate water tech expertise. Meanwhile, hyperscalers spending $50 billion a year on infrastructure have made zero water acquisitions... for how long?
What Is the Real Water Problem Behind AI Data Centers - and Where Is the $1.3 Billion Opportunity? AI Water seems to concern everybody, while data center water treatment is the fastest-growing industrial water vertical in the world - $1.35 billion in 2025, growing at 13.3% per year. But the media is chasing the wrong story. The real problem isn't consumption volume — it's the concentrated industrial wastewater that cooling towers produce. This episode maps the opportunity most investors are missing. A
Why Did a Broke Football Club Owned by Gucci's Family Invest Millions in Water Reuse? Stade Rennais, the French football club owned by the Pinault family behind Kering (Gucci, Balenciaga, Bottega Veneta...), buried a €1.5 million closed-loop water system under its renovated La Piverdière training complex in February 2025. This investment, during French football's worst financial crisis, reveals a widening gap between what water costs and what water is truly worth - using water reuse as its vehicle.
How Much Does The USA Really Need to Fix Its Water Infrastructure? And Why Is Nobody Talking About the Real Number? (Hint: the US EPA has it wrong!)I built a bottom-up predictive model spanning 32 federal datasets, 433,000 water systems, and 15.1 million regulatory violations to determine the true cost of bringing US water infrastructure back to shape. The answer: $3.9 trillion over twenty years (that's three times the EPA's official estimate of $1.25 trillion)
Can Europe's Sewage Plants Replace Russian Gas? (aka: the €1.9 Billion Biomethane Opportunity) Europe's wastewater treatment plants are sitting on a massive untapped energy reserve. With the right upgrades, roughly 1,900 facilities across Europe could produce 13.4 billion cubic meters of biomethane per year — matching Russia's remaining pipeline gas deliveries in 2024. Let me break down the economics, the technology, and the investment landscape driving this shift.
How Did Pierre Côté Build Two Unicorn Water Technologies - and Why Is He Now Betting on Algae? Pierre Côté is arguably the most successful water technology inventor alive. With over 100 patents across four decades, he created ZeeWeed (the membrane that launched the $3.63 billion MBR market) and co-invented ZeeLung (anchoring the ~$500 million MABR market). Now in his seventies, he's co-founded AlgaFilm Technologies to tackle nutrient removal with algae biofilm.
Can 4 Volts of Electricity Replace 60 Bars of Pressure in Seawater Desalination? ilion Water Technologies is a 2025 spinout from the Physics Laboratory of the École Normale Supérieure in Paris. Their VIRO (Voltage-Induced Reverse Osmosis) technology claims to replace the high-pressure pump train in seawater desalination with an alternating electric field applied to engineered composite membranes, operating at atmospheric pressure.
Why Are Water Testing Methods Dangerously Outdated - And What's the Fix?Tired of stitching together Crunchbase, overpriced reports, and "a guy who knows a guy"? I built the fix. 50 Founder Seats. Join the waitlist: leviathandata.io
How Did H2O Innovation Build a Water Empire Through 18+ Acquisitions (M&A) and What Happens Now Under Private Equity?More #water insights? Get my free mapping of 267 water investors here: https://investors.dww.show
How is Cycle H2O (a new Water VC) De-Risking Early Stage Water Tech Investment?More #water insights? Get my free mapping of 267 water investors here: https://investors.dww.show
What Wastewater Products Can You Actually Buy for Christmas?
How Will Ovivo Rebuild to Full Size in 10 Years After the Ecolab Deal?
How Is Aqua Membranes Scaling 3D-Printed Water Membranes Spacers from Garage Startup to 200,000 Square Foot Manufacturing Facility? Let's find out!More #water insights? Connect with me on Linkedin: https://www.linkedin.com/in/antoinewalter1/
Can Cloud Harvesting Revolutionize Water Production? A Deep Dive into AirHES Technology
How Does Water-as-a-Service Drive Billion-Dollar Exits in Infrastructure Investment?
How Can We Afford to Remove PFAS from Our Environment When Treatment Costs Exceed Global GDP?
How Do 32+ Electrochemical Water Oxidation Technologies Compete for PFAS Destruction Market Share? Listen to this!More #water insights? Connect with me on Linkedin: https://www.linkedin.com/in/antoinewalter1/
What's to remember from WEFTEC 2025? Here are my 5 Water Tech picks, 3 Marketing Tips, the State of the Union on the Water/AI Nexus, and much more. Wanna get 3 Days at WEFTEC summarized in 70 Minutes? Listen to this!More #water insights? Connect with me on Linkedin: https://www.linkedin.com/in/antoinewalter1/
How did SKion Water turn a $142M "apple tree" into $1.8B gold with the carve out of Ovivo's Electronics division to Ecolab? Let's find out! My best water tech analysis straight to your inbox: https://www.linkedin.com/build-relation/newsletter-follow?entityUrn=6884833968848474112
Abu Dhabi's TAQA is acquiring Spain-based GS Inima for US$1.2 billion, creating one of the most interesting moves in the global water sector this year. TAQA has long been known as a power and desalination leader in the Gulf, while GS Inima brings decades of experience managing water projects across Europe and Latin America. Together, the companies form a new global player with nearly 50 assets across 10 countries. In this episode, podcast host Reese Tisdale and Bluefield Senior Analyst Antonio del Olmo break down the deal and its implications for the global water sector: What does TAQA gain by acquiring GS Inima's global portfolio? How does exposure to Europe and Brazil shift its risk profile and strategy? Why is Brazil attracting so much private investment in water, and what challenges come with it? Do GS Inima's European projects provide a counterweight to emerging market risks? What does this acquisition signal for competition with global players like Veolia and ENGIE? If you enjoy listening to The Future of Water Podcast, please tell a friend or colleague, and if you haven't already, please click to follow this podcast wherever you listen. If you'd like to be informed of water market news, trends, perspectives and analysis from Bluefield Research, subscribe to Waterline, our weekly newsletter published each Wednesday. Related Research & Analysis: TAQA Expands Strategic Footprint Through GS Inima
Could this new material finally change Reverse Osmosis for the better? Let's dig into it! More #WaterTech insights? Get my free water investor database: https://investors.dww.show
Aquatech just acquired Koch Technology Solutions' direct lithium extraction business - Here are my 3 key takeaways! #️⃣ All the Links Mentioned in this Video #️⃣ Aquatech's press release: https://www.prnewswire.com/news-releases/aquatech-acquires-kochs-direct-lithium-extraction-business-integrating-li-pro-dle-into-the-pearl-technology-platform-302558347.html My conversation with Devesh Sharma: https://youtu.be/inlyb_aMtzw?si=z1uTHU6GlRvmuKPl My full exploration of the Lithium World: https://www.youtube.com/watch?v=JeZJpBySIQo&t=1s
How did some of the greatest content creators raise $41.5 Million in one month for Water Access? Watch this! More #WaterTech insights? Get my free water investor database: https://investors.dww.show
Wanna know why 86% of Investors treat water tech like Portfolio Insurance? Watch this! More #WaterTech insights? Get my free water investor database: https://investors.dww.show
Ever heard of Electric Membranes that are Talking Back? Listen to this!More #WaterTech insights? Subscribe to my newsletter: https://www.linkedin.com/build-relation/newsletter-follow?entityUrn=6884833968848474112
Making water from thin air at 1¢/liter? Listen to this!More #WaterTech insights? Subscribe to my newsletter: https://www.linkedin.com/build-relation/newsletter-follow?entityUrn=6884833968848474112
Wondering How to Extract Lithium Without Mining or Massive Water Use? Listen to this!More #WaterTech insights? Subscribe to my newsletter: https://www.linkedin.com/build-relation/newsletter-follow?entityUrn=6884833968848474112
Ever wondered why Smart Utilities Let Their Assets Break? Then listen to this: It will show you how Physics beats AI in Asset Management! More #water insights? Subscribe to my newsletter, for free! https://www.linkedin.com/build-relation/newsletter-follow?entityUrn=6884833968848474112
What if Google had the solution to save 1 billion people... and just threw it away? Let's find out! Google spent 4 YEARS secretly developing a device that pulls safe drinking water from thin air using only sunlight. They proved it worked. They proved it could help over 1 BILLION people without clean water. Then they just... quit and open-sourced everything in 2021.
PFAS destruction for a lower cost than PFAS removal: Transformational or Questionable? Let's find out! For more water tech insights, subscribe to my newsletter: https://www.linkedin.com/newsletters/6884833968848474112/
What if electron-rich Water Gas Molecules could target and destroy PFAS... for cheaper than PFAS removal technologies? Check it out! For more water tech insights, subscribe to my newsletter: https://www.linkedin.com/newsletters/6884833968848474112/
What's the Water Secret that 99% of Climate Investors are Missing? Listen to This! Wanna dive deeper into water investment? Get my FREE exhaustive list of water tech investors (that cut 2+ checks) here: https://investors.dww.show/
Today's guest, Bluefield Analyst Megan Bondar, joins host Reese Tisdale to unpack the growing role of investor-owned utilities (IOUs) in the U.S. water sector. From calculating market share to tracking M&A activity and geographic expansion, Megan brings fresh insights into how IOUs are positioning themselves in a fragmented market of 49,000 drinking water and 18,000 wastewater systems. Though IOUs currently serve only about 5% of the U.S. population, their influence is expanding—through acquisitions, capital investments, and shifting ownership strategies. This episode also explores how consolidation is playing out in different forms, including municipal-to-municipal deals and the rise of quasi-public entities. This episode answers key questions: Who are the IOUs in the U.S., and what's their footprint? How are IOUs reshaping the water market through M&A? What are the capital strategies behind IOU growth? What role is private equity playing in this sector? How are regional realignments and exits redefining competition? If you enjoy listening to The Future of Water Podcast, please tell a friend or colleague, and if you haven't already, please click to follow this podcast wherever you listen. If you'd like to be informed of water market news, trends, perspectives and analysis from Bluefield Research, subscribe to Waterline, our weekly newsletter published each Wednesday. Related Research & Analysis: Investor-Owned Utilities in Water: Market Share, Trends, and Company Rankings Nexus's Utility Sell-Off Goes to American Water Unitil Carves Out Water Presence via Aquarion Platform
3 Radical Approaches Solving Water Scarcity Today, in just one video! More #water insights? Subscribe to my newsletter: https://www.linkedin.com/newsletters/6884833968848474112/
Why do we choose expensive over affordable in Water? Let's use the Permian Basin's example to make a point: wastewater reuse is the way!More #water insights? Subscribe to my newsletter on Linkedin: https://www.linkedin.com/build-relation/newsletter-follow?entityUrn=6884833968848474112
Wanna know why Big Pharma is Knocking on This French Startup's Door? Listen to this!More #water insights? Connect with me on Linkedin: https://www.linkedin.com/in/antoinewalter1/
I analyzed 139 publicly traded water companies and discovered a simple formula that predicts their valuations using just three parameters: position on the "boring-to-hype spectrum," percentage of digital revenue, and percentage of recurring revenue. This formula reveals systematic market mispricing that creates 8-25% annual return opportunities by exploiting Wall Street's ignorance of water industry fundamentals. Wanna find out? Listen to this!More #water insights? Connect with me on Linkedin: https://www.linkedin.com/in/antoinewalter1/
Wanna learn how to comply with PFAS Removal targets with the lowest risk and without breaking the bank? Listen to this!More #water insights? Connect with me on Linkedin: https://www.linkedin.com/in/antoinewalter1/
Is this the end of Mineral Water? Or just the end of Nestlé Waters? Listen to this!More #water insights? Connect with me on Linkedin: https://www.linkedin.com/in/antoinewalter1/
Why is a mildly successful Water Tech company valued at almost twice the S&P500 M&A average? And how is that link to Private Equity's appetite for water companies? Let's find out!More #water insights? Connect with me on Linkedin: https://www.linkedin.com/in/antoinewalter1/
Why is the Global Water Summit the Davos of Water? Watch this video and you'll find out! More #water insights? Connect with me on Linkedin: https://www.linkedin.com/in/antoinewalter1/
PFAS testing in Water takes 1-3 months according to the AWWA. How can FREDsense make it happen in 5 Days instead without cutting corners? Listen to this!More #water insights? Connect with me on Linkedin: https://www.linkedin.com/in/antoinewalter1/
Just received a PFAS Notice at home? Don't panic - let's go through it together! #️⃣ All the Links Mentioned in this Video #️⃣ Johns Hopkins study on PFAS in Bottled Water: https://pubmed.ncbi.nlm.nih.gov/34118648/ Study on PFAS in Beer: https://pubmed.ncbi.nlm.nih.gov/40272161/ The Toronto Paper on LCMS to detect PFAS at ppt levels: https://pubs.acs.org/doi/10.1021/ac0100648 Decline in vaccine efficiency linked with blood PFAS levels: https://pubmed.ncbi.nlm.nih.gov/22274686/ Increased cholesterol linked with PFAS in blood: https://pmc.ncbi.nlm.nih.gov/articles/PMC3116641/ Pregnancy disorders linked with PFAS: https://pubmed.ncbi.nlm.nih.gov/35696844/ The AWWA vs EPA lawsuit: https://www.awwa.org/resource/pfas/ Tapscore's PFAS screening test: https://mytapscore.com/products/epa-8327-pfas-screen-water-test 10 PFAS questions answered: https://www.youtube.com/watch?v=5dlH0RSCtH0
How can Swirltex claim to succeed where membranes always failed? Listen to this!More #water insights? Connect with me on Linkedin: https://www.linkedin.com/in/antoinewalter1/