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On the show

Prakash Govindan

Co-Founder & CEO at Gradiant

Co-founder and CEO of Gradiant, the MIT spin-out that became water tech's first unicorn by treating the industrial water nobody else could, and which raised at a $2 billion valuation in 2026.

📍 Boston, MA (Gradiant, MIT spin-out)LinkedIn

Compiled by Antoine Walter - from insight gathered on and off his (don't) Waste Water microphone!

Prakash Govindan is the co-founder and CEO of Gradiant, the MIT spin-out he helped turn into water tech's first unicorn by treating the salty, variable industrial water bigger players walked away from. He invented its first product as an MIT PhD, became CEO in April 2026, and Gradiant raised at a $2 billion valuation that month. (as of 2026)

On the show
2 interviews
Gradiant founded
2013
Disclosed funding
$330M+
2026 valuation
$2B

Prakash Govindan likes to say Gradiant was started by “two guys with little to no experience in water,” and he means it as a compliment. He had done a mechanical-engineering PhD at MIT, building a desalination method called carrier gas extraction, and he had spent a stint at GE developing new products, which is where he says his real talent sits. So when he and co-founder Anurag Bajpayee licensed their MIT work and started Gradiant in 2013, they went looking not for the cleanest water problem but the ugliest one: the salty, variable wastewater coming off America's shale oil-and-gas boom, a market the big incumbents found too messy to bother with. Less competition, faster traction, and a customer who actually needed them.

Prakash Govindan is, at heart, a product guy, and that is the through-line of everything Gradiant builds. Carrier gas extraction was the flagship for the first year, the core of the company's first produced-water zero-liquid-discharge plant in Texas, and then the team kept inventing. They built CFRO, counterflow reverse osmosis (Gradiant sells it as RO Infinity), which is the first RO technology that can keep pushing water until the leftover brine is basically saturated salt. The practical payoff is the kind a customer cares about: in his words, Gradiant can take seawater-desalination brine and squeeze more fresh water out of it “at roughly the same cost” as the desalination itself, with no new intakes, outfalls or permits to build. Today that same instinct points at the thirstiest new customers in the world, the semiconductor fabs and AI data centers that need ultrapure water and a place for the dirty water to go.

Prakash Govindan is also refreshingly blunt about what frustrates him, and it is the same thing that makes him worth listening to. “Where the water industry frustrates me, honestly, is that lack of vision,” he told me: the people sending rockets to Mars and building electric cars can sell a dream, and water, somehow, cannot. His own pitch is the opposite of timid. He and Anurag, he says, have never once sat down to strategize an exit; the goal is to build “the most impactful water company in the world,” and the returns will follow. Gradiant has done its IPO-readiness homework without committing to a date, and the market has rewarded the patience. The data in my Leviathan database records the disclosed rounds climbing past $330 million, a Series C and a $225 million Series D, and in May 2026 a Series E that valued Gradiant at $2 billion, the month Prakash Govindan moved from chief operating officer to chief executive.

Prakash Govindan grew up in Chennai, in South India, and the entrepreneur showed up early. “Ever since childhood, I have started businesses out of my house in Chennai,” he says, including a small lending library he ran out of the family home at eight or nine years old, charging neighbours pocket money to borrow the books he had already devoured. That same restless, slightly geeky optimisation runs through how he builds product now: he believes in shipping a minimum viable product fast and in keeping his options open, a philosophy he sums up by saying he has never once resented Subway for making him choose between sixteen breads and seventeen vegetables. The harder discipline, he admits, is saying no, which is mostly Anurag's job.

“Minimum viable products are super important. The second thing I believe in is optionality. This is how I live my life. I never begrudged Subway for asking me to select between 16 breads and 17 different types of vegetables.”

He is, in short, an engineer who treats a company the way he treats a product: ship the version that works, keep your options open, and go after the problem everyone else thinks is too hard.

On (don’t) Waste Water

Prakash Govindan has been a recurring voice on the show since 2024, across interviews, panels and year-in-review recaps. The two times he carried a full conversation:

The company

Gradiant
Gradiant is a water-technology company spun out of MIT in 2013 that designs and runs advanced treatment systems for the world's most demanding industrial water: semiconductors, pharmaceuticals, food and beverage, mining and energy. Its proprietary stack (carrier gas extraction, counterflow reverse osmosis and brine minimization) recycles, desalinates and recovers resources from water that conventional plants can't handle. Gradiant says it saves around 6.5 billion liters of fresh water every day.
Founded 2013 · Boston, MA, USA

Frequently asked

Who is Prakash Govindan?
Prakash Govindan is the co-founder and CEO of Gradiant, a water-technology company he co-started in 2013 out of MIT, where he earned a mechanical-engineering PhD. He invented Gradiant's first desalination product and built the company into water tech's first unicorn by treating industrial water bigger players avoided.
Who is the CEO of Gradiant?
Prakash Govindan became CEO of Gradiant in April 2026, having previously served as the company's co-founder and chief operating officer, and earlier as chief technology officer. His co-founder Anurag Bajpayee, who had led the company, moved to the role of executive chairman. Both founders met as PhD researchers at MIT.
What does Gradiant do?
Gradiant treats, recycles and desalinates demanding industrial water for semiconductor fabs, pharmaceuticals, food and beverage, mining and energy. Using proprietary technologies such as counterflow reverse osmosis and brine minimization, it recovers fresh water and resources from streams conventional plants can't handle, and says it saves roughly 6.5 billion liters a day.
How did Prakash Govindan get into water?
Prakash Govindan came to water through engineering, not activism. As a mechanical-engineering PhD at MIT under Professor John Lienhard, he built carrier gas extraction, a way to desalinate very salty water. He and co-founder Anurag Bajpayee licensed the work and started Gradiant in 2013, first targeting wastewater from US shale oil and gas.
How much has Gradiant raised, and what is it worth?
Gradiant has raised more than $330 million across its disclosed rounds, including a $225 million Series D in 2023. In May 2026 it closed a Series E that valued the company at $2 billion, led by Safar Partners and Hostplus, to fund expansion into AI data-center and semiconductor water infrastructure.