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i(x) Net Zero
i(x) Net Zero launched as a multi-family office platform dedicated to financing the low-carbon transition. Co-founded by Lindström, Trevor Neilson, Howard W.
i(x) Net Zero
i(x) Net Zero launched as a multi-family office platform dedicated to financing the low-carbon transition. Co-founded by Lindström, Trevor Neilson, Howard W. Buffett, and Steve McBee, the firm aggregates capital from a network of family offices — blending anchor investors with project-level co-investors. Nick Hurd, former UK Minister for Climate Change, serves as Non-Executive Chairman. The strategy cuts across venture, growth equity, and infrastructure, with an emphasis on direct co-investments and real assets. Publicly confirmed exposures include the 303 Battery residential project in Seattle, the MultiGreen Properties portfolio targeting underserved US markets, and positions in biofuels and carbon credits. Geographic coverage extends across North America, Europe, Asia, and South America. Technology focus areas incorporate AI/ML, ESG frameworks, and blockchain applications. Team scale remains undisclosed. The firm operates from a Jersey headquarters, leveraging a lean model with key operators holding overlapping roles. Lindström doubles as CEO and CIO after prior experience at Abu Dhabi Investment Council; Neilson runs WasteFuel as CEO and co-founded the Global Philanthropy Group; Buffett teaches at Columbia University. The firm signed the UN Principles for Responsible Investment in 2021 and received the London Stock Exchange Green Economy Mark. IXNZ’s architecture blends a family office club with a permanent-capital holding company. Rather than raising blind-pool funds, it assembles bespoke syndicates for each deal, which shifts the power dynamic toward co-investor families and away from GP economics. This model ties its cadence to the operating timelines of the portfolio companies — WasteFuel, 303 Battery, and MultiGreen — and the philanthropic networks of its founders including the Howard G. Buffett Foundation.
General information
Firm type
Multi Family Office
Year founded
—
AUM
$100M–$200M (Altss estimate)
Location
Region
Europe
Country
Jersey
City
Saint Helier
Corporate office
Saint Helier, Jersey
Principals
Pär Lindström
Co-founder, CEO, and Chief Investment Officer
Trevor Neilson
Co-founder and former CEO
Howard W. Buffett
Co-founder
Steve McBee
Co-founder
Nick Hurd
Non-Executive Chairman
Sector focus
Frequently asked questions
Who runs investment decisions at i(x) Net Zero?
Pär Lindström serves as Co-founder, CEO, and Chief Investment Officer, overseeing all investment decisions. His background includes a role as Principal at the Abu Dhabi Investment Council. Co-founder Trevor Neilson previously held the CEO title but has stepped back from day-to-day management to focus on portfolio company WasteFuel.
How does i(x) Net Zero source proprietary deal flow?
The firm sources through its founders' networks and the collective ecosystem of its family office shareholders. Pär Lindström's tenure in sovereign wealth and Trevor Neilson's climate-policy and philanthropic circles — combined with Nick Hurd's political network — create origination channels that bypass standard auction processes for climate-tech and sustainable real assets.
Is i(x) Net Zero a single-family office or does it operate more like a venture firm?
It is structured as a multi-family office that functions like a permanent-capital investment company. It does not raise classic blind-pool funds; instead, it forms deal-by-deal syndicates from its base of co-investing family offices, giving it more flexibility than a typical VC firm on hold periods and structure.
Does i(x) Net Zero participate in fund commitments or only direct deals?
Available information points exclusively to direct co-investments and platform-company creation, such as WasteFuel and the MultiGreen Properties portfolio. There is no public evidence of the firm committing to external commingled funds, which is consistent with a model built around co-investor alignment rather than intermediary fees.
What investment stages does i(x) Net Zero typically target?
It targets venture and growth-stage companies alongside infrastructure and real-asset plays. This spans early-stage climate tech platforms like WasteFuel to large-scale physical assets such as the 303 Battery Street residential development in Seattle.
Where does the underlying wealth come from?
i(x) Net Zero does not disclose the names or wealth origins of its underlying family office limited partners. The firm aggregates capital from multiple global families, with Howard W. Buffett’s involvement connecting it to the philanthropic traditions of the Howard G. Buffett Foundation rather than direct Berkshire Hathaway wealth.
How is i(x) Net Zero related to the Howard G. Buffett Foundation?
The foundation is not a direct limited partner, but the relationship runs through co-founder Howard W. Buffett — the grandson of Warren Buffett — who teaches at Columbia SIPA and shapes the firm's impact-measurement approach. The foundation's ethos of operational philanthropy informs the firm's focus on measurable decarbonization rather than a parent-to-office capital flow.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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