Valmont's $300M purchase of crop-AI startup Prospera, DuPont's acquisition of desalination firm Desalitech, and GenCell's since-collapsed 2020 IPO are the confirmed record of Israeli climate-tech exits, scarce, strategic, and far behind the sector's funding growth.
Israel's climate-tech sector has produced far more funding rounds than real exits since 2020, and the handful of confirmed deals point to a consistent pattern: strategic industrial buyers paying for narrow, provable technology, not financial sponsors chasing a climate-tech thesis. The three clearest cases, Valmont's $300 million purchase of crop-AI startup Prospera, DuPont's acquisition of desalination firm Desalitech, and fuel-cell maker GenCell's 2020 IPO on the Tel Aviv Stock Exchange, together sketch the actual shape of Israeli climate-tech liquidity, which looks very different from the sector's headline funding numbers.
How Big Is the Gap Between Israeli Climate-Tech Funding and Exits?
Israeli climate tech raised roughly $2.27 billion in 2022 across a growing base of 784 mapped startups, according to a joint Israel Innovation Authority and PLANETech report, itself down only 12% from 2021 despite a broader tech funding collapse. Climate tech investments in Israel grew 320% from 2018 to 2021 before the correction, and by 2022 the category represented 17.4% of all newly founded Israeli startups, up from smaller shares in prior years.
Exit activity has not kept pace with that funding growth. Israel's overall tech exit value, across all sectors including M&A and IPOs, slumped 56% in 2023 to $7.5 billion from $16.9 billion the year before, according to the 2023 Israel High Tech Exit report cited by the Times of Israel, after peaking at a record $82 billion in 2021. Climate tech specifically has produced a small number of confirmed, named exits inside that broader collapse, rather than a steady cadence of deals matching its funding growth.
What Happened When Valmont Bought Prospera for $300 Million?
Valmont Industries, a US-listed irrigation and infrastructure equipment maker, acquired Tel Aviv-founded Prospera Technologies for approximately $300 million in a deal that closed in May 2021, following a two-year commercial partnership the companies had run since 2019. Prospera's computer-vision and machine-learning platform monitored crop health and stress across roughly five million acres by 2020, four times the partnership's original one-million-acre target, according to AgFunder News.
Prospera had raised only around $22 to 26 million prior to the acquisition, from investors including Cisco, Qualcomm, Bessemer, and Mobileye's Amnon Shashua as a private investor, per Start-Up Nation Central data cited by Globes, meaning the exit returned roughly 12 to 14 times invested capital, an unusually clean multiple for an agtech deal at that scale. Valmont folded Prospera into its Irrigation segment and described the combined entity as the "largest vertically integrated AI company in agriculture."
Why Did DuPont Buy an Israeli Desalination Company?
DuPont signed an agreement in December 2019 to acquire Desalitech, an Israeli closed-circuit reverse osmosis (CCRO) desalination company, with the deal closing in January 2020; financial terms were never disclosed. Desalitech's CCRO technology cut the cost of reverse-osmosis water treatment by 20 to 60% by increasing water-use efficiency and reducing brine waste, achieving 90 to 98% water recovery rates across more than 200 industrial and municipal customers, according to DuPont's own announcement.
Founded in 2008 by chairman Nadav Efraty and his father, chemist Avi Efraty, Desalitech had raised approximately $24.5 million prior to the acquisition, per Start-Up Nation Central data. The deal folded directly into DuPont Water Solutions' existing reverse-osmosis membrane business (the FilmTec brand), making it a clean technology-and-customer-base acquisition rather than a new market entry for the acquirer, the same kind of narrow, provable-technology logic that defined the Prospera deal a year later.
What Happened to GenCell After Its 2020 IPO?
GenCell Energy, a Petah Tikva-based maker of hydrogen and ammonia fuel-cell backup power systems, completed an IPO on the Tel Aviv Stock Exchange in November 2020, raising NIS 205 million (about $61 million) by selling a 25% stake at a post-money valuation of roughly NIS 800 million (about $240 million), the first public listing by an Israeli hydrogen-industry company. Strategic investors included Paz Oil Company and Japanese electronics conglomerate TDK.
The IPO has not held up well since. As of May 2026, GenCell's market capitalization stood at approximately $8.21 million with a share price of $0.37, against trailing twelve-month revenue of just $1.91 million, according to PitchBook data, a decline of more than 95% from its 2020 post-money valuation. GenCell remains the sector's clearest cautionary tale: going public does not, by itself, constitute a successful exit if the underlying commercial traction never scales to match the valuation set at listing.
How Does IDE Technologies' Ownership Consolidation Fit This Pattern?
IDE Technologies, the desalination engineering firm behind most of Israel's SWRO plants, completed a different kind of exit in this window: full consolidation under Alfa Water Partners, which acquired Israel Chemicals' 50% stake in 2017 and Delek Group's remaining stakes in stages through 2019 to 2020, giving Alfa full ownership by 2020. As Olam has covered in detail, IDE is now reportedly in due diligence talks with Azerbaijan's sovereign investment arm for a 30% stake at a valuation implying roughly $850 million, more than double Alfa's 2019 entry price, though that transaction remains unconfirmed as of this writing.
What Does the Pattern Across These Deals Actually Show?
Three things stand out. First, every confirmed exit in this ledger is a strategic acquisition by an existing industrial player in the same vertical, an irrigation-equipment maker buying crop AI, a chemicals conglomerate buying desalination membranes, rather than a financial buyer or a climate-focused fund cashing out a portfolio company. Second, the deal sizes are modest by Israeli tech standards: $300 million for Prospera is a solid outcome but nowhere near the mega-exits that define Israeli cybersecurity or fintech in the same years. Third, the IPO route has so far produced one clear cautionary result (GenCell) rather than a template other Israeli climate-tech companies have rushed to follow, unlike the wave of TASE renewables-developer listings covered in Olam's report on Enlight, Energix, and the sector's 2026 rebound.
That leaves Israeli climate tech's largest, most active companies, Netafim, Watergen, StoreDot, RepAir, Gigablue, still privately held or held inside larger industrial parents, with no confirmed near-term exit event of their own. The ledger above is not exhaustive, but it is the confirmed, named, sourced record as it stands: real exits remain scarce relative to the sector's funding growth, and the deals that have happened reward narrow technical differentiation over broad platform bets.
FAQ
What is the biggest confirmed Israeli climate-tech exit since 2020?
Valmont Industries' $300 million acquisition of Prospera Technologies, an Israeli agricultural AI company, in a deal that closed in May 2021.
Did DuPont disclose how much it paid for Desalitech?
No. DuPont's December 2019 agreement to acquire the Israeli desalination company Desalitech, which closed in January 2020, did not disclose financial terms.
How has GenCell performed since its 2020 IPO?
Poorly. GenCell raised $61 million at a $240 million post-money valuation on the Tel Aviv Stock Exchange in November 2020; by May 2026 its market cap had fallen to roughly $8.2 million.
Why are there so few Israeli climate-tech exits relative to funding?
Israeli tech exits overall fell 56% in 2023 amid rising rates and the war's economic impact, and climate tech in particular has attracted strategic industrial buyers seeking narrow, provable technology rather than the broader wave of financial-sponsor and mega-exit activity seen in Israeli cybersecurity or fintech.
Related on The Olam
- Who Owns Israel's Carbon-Tech Sector?
- Israel's Grid-Tech and Battery-Storage Startups
- The Israeli Renewables Developer Wave
- IDE Technologies: Inside Israel's Desalination Stack
- Israel's Climate and Water Economy: The Complete Map
Sources
Valmont Industries, Form 10-K FY2021 and Q2 2021 earnings presentation (SEC filings). AgFunder News, Calcalist/CTech, Globes, and Times of Israel reporting on the Prospera acquisition, May 2021. DuPont press release and Globes/Times of Israel/Jerusalem Post reporting on the Desalitech acquisition, December 2019 to January 2020. Times of Israel, "Israel's GenCell raises NIS 205 million in share sale on Tel Aviv Stock Exchange," November 2020. PitchBook, GenCell (Israel) company profile, market data as of May 2026. Times of Israel, "Israeli tech exits slump 56% in 2023." Jerusalem Post and Times of Israel coverage of Israel Innovation Authority / PLANETech State of Climate Tech reports, 2022 to 2023.
