Stripe DAC Initiatives for 2025: Key Projects, Strategies and Partnerships

Stripe’s Evolution in DAC: From Market Catalyst to Strategic Procurement

Stripe has rapidly transitioned from a foundational catalyst in the Direct Air Capture (DAC) market to a sophisticated strategic buyer. Its approach, primarily executed through the Frontier consortium, has evolved from broad, early-stage support to targeted, large-scale investments in specific technologies and geographies. This analysis examines Stripe’s activities across two distinct periods, 2021–2024 and 2025 to the present, revealing a maturing strategy that is actively shaping the trajectory of the carbon removal industry. By dissecting its investments, partnerships, and geographic focus, we can identify key inflection points and project the future direction of corporate engagement in DAC.

Industry Adoption

From Foundational Commitments to Diverse Technological Bets

Between 2021 and 2024, Stripe’s primary role was that of a market-maker. Co-founding Frontier with a landmark $925 million advance market commitment (AMC) in 2022 was a powerful demand signal intended to pull nascent DAC technologies out of the lab. Early activities involved broad support for a variety of approaches, evidenced by purchases from Climeworks, grants to R&D-stage companies like Carboniferous, and a key early purchase from AspiraDAC’s solar-powered modules. The strategy was to foster a diverse ecosystem and validate the AMC model, highlighted by the first verified removals by Climeworks in 2023. This period was characterized by seeding the market and de-risking a portfolio of very early-stage innovations.

Beginning in 2025, a significant inflection point occurred. Stripe’s strategy, via Frontier, shifted from broad ecosystem support to making specific, large-scale bets on promising technological pathways. The $30.6 million offtake agreement with Phlair for its energy-efficient electrochemical DAC marks a pivotal move toward backing next-generation technologies with a clearer path to cost reduction. This diversification is not just technological but also operational; the partnership with Deep Sky to pilot DAC in Canada signifies an expansion beyond established hubs to test performance in new environments. This evolution from general adoption to a sophisticated portfolio approach, balancing established players like Climeworks with targeted bets on emerging leaders like Phlair, indicates that the market is moving past initial validation and into a new phase of competitive scaling.

Carbon Removal Purchases and Investments

Stripe’s financial commitments have been instrumental in capitalizing the DAC sector. Initially focused on smaller, catalytic purchases and grants to stimulate R&D, the strategy has matured into facilitating multi-million dollar offtake agreements. These agreements provide DAC companies with the revenue certainty needed to secure financing and scale operations, shifting the financial risk from early-stage technology failure to long-term commercial delivery.

Table: Stripe’s Carbon Removal Financial Commitments (via Frontier and Direct)
Partner / Project Time Frame Details and Strategic Purpose Source
Phlair Feb 27, 2025 Participation in a $30.6M offtake agreement for 47,000 tonnes of removal, backing a novel, energy-efficient electrochemical DAC technology. Frontier
280 Earth Jul 11, 2024 Participation in a $40M offtake agreement, providing a crucial demand signal to help a novel DAC system scale its technology. Frontier
Heirloom & CarbonCapture Inc. Nov 2023 Signed $26.6M in DAC offtake agreements with Heirloom and an additional amount with CarbonCapture Inc., locking in future supply from two leading US-based DAC developers. Heirloom
Carboniferous, Rewind, Arbon, Vycarb Sep 7, 2023 Provided $500,000 grants to Carboniferous and Rewind, and $200,000 to Arbon and Vycarb via Activate to support early-stage R&D. Frontier
8 Rivers Capital Spring 2022 Invested $1.5M through its carbon removal purchase cycle to support the development of 8 Rivers’ technology. 8 Rivers
AspiraDAC Jul 12, 2022 Paid $700,000 for carbon removal from AspiraDAC’s solar-powered DAC technology, acting as a launch customer for an innovative, modular approach. CarbonCredits.com
Various Companies 2021 Committed $6M to purchase carbon removal from four companies, initiating its portfolio approach to carbon removal. Stripe

Strategic Partnerships and Customer Agreements

Beyond direct financial injections, Stripe has leveraged partnerships to build a robust and diversified portfolio of DAC solutions. These collaborations range from being a launch customer for startups to signing multi-year agreements with established leaders, ensuring Stripe has access to a variety of technologies as the market evolves.

Table: Stripe’s Key DAC Partnerships and Collaborations
Partner / Project Time Frame Details and Strategic Purpose Source
Heirloom Carbon Technologies May 24, 2025 Listed as a customer of Heirloom, solidifying its ongoing support for one of the leading DAC companies as it scales commercially. CB Insights
Deep Sky May 16, 2025 Partnered on a DAC pilot project in Innisfail, Canada, to explore performance in new geographies and support a Canadian-based DAC venture. Global Venturing
Climeworks Feb 3, 2025 Signed multi-million dollar carbon removal agreements, reaffirming a long-term relationship with a market leader in DAC. Startus Insights
Capture6 Sep 18, 2024 Facilitated a pre-purchase of 1,000 tons of carbon removal, supporting a company with a novel technology at the pre-commercial stage. Capture6
Heirloom Carbon Technologies Nov 9, 2023 Acted as a foundational customer for Heirloom’s first commercial DAC facility in the US, providing critical support for the transition from pilot to commercial scale. Heirloom
Climeworks Jan 13, 2023 Received third-party verification of CO2 captured and stored by Climeworks, a crucial milestone that validated the efficacy and accountability of its DAC purchases. The Verge
AspiraDAC Jul 12, 2022 Served as the launch customer for AspiraDAC, demonstrating a willingness to back innovative, early-stage companies and help them enter the market. AspiraDAC
Frontier Climate 2022 Co-founded Frontier, an advance market commitment vehicle, to aggregate demand and accelerate the development of permanent carbon removal technologies. Frontier

Geography

From US-Centric Pilots to a Globalized Portfolio

Between 2021 and 2024, Stripe’s geographic focus was predominantly on DAC innovators in the United States, including major agreements with California-based Heirloom and CarbonCapture Inc. This concentration reflected the early emergence of a supportive policy and venture capital ecosystem in the US. However, key international partnerships with Climeworks (Switzerland/Iceland) and AspiraDAC (Australia) demonstrated an early recognition that DAC is a global challenge requiring global solutions. These initial international forays were crucial for portfolio diversification but represented a minority of the activity.

The period from 2025 to today marks a deliberate and strategic geographic expansion. The partnership with Deep Sky for a pilot in Innisfail, Canada, is the clearest signal of this shift. This move is likely driven by a search for regions with abundant, low-cost renewable energy and supportive national policies, which are critical for scaling DAC affordably. By actively supporting projects in Canada, Stripe is not only diversifying its geographic risk but also helping to catalyze new DAC hubs. This expansion from a US-centric base to a multi-national strategy including Canada and a continued presence in Europe suggests Stripe is now actively seeking optimal locations for deployment, a sign of increasing operational maturity.

Technology Maturity

Accelerating from Market-Making to Technology-Specific Scaling

In the 2021–2024 timeframe, Stripe’s efforts were centered on moving technologies from the R&D and demo phase toward commercial viability. The strategy was to create a market pull for any permanent carbon removal solution. This is evident in the support for a wide range of technologies, from R&D grants via Activate to being a launch customer for AspiraDAC’s novel solar-powered modules. The verification of removal by Climeworks in 2023 was a critical validation point, proving that DAC technology could move from pilot to a commercially operational and verifiable service. The offtake agreements with Heirloom were signed while the company was still building its first commercial plant, representing a forward bet on scaling.

The period from 2025 onwards demonstrates a clear shift toward scaling specific, proven, or highly promising technological pathways. The partnership with Phlair is not just another DAC deal; it is a targeted investment in electrochemical DAC, a next-generation approach praised for its potential energy efficiency. This shows a move from technology-agnostic support to a more refined strategy of picking potential winners. Simultaneously, the continued multi-million dollar agreements with Climeworks and customer relationship with Heirloom at its now-operational commercial facility show a commitment to scaling proven models. The Deep Sky pilot represents a methodical approach to validating technology in new environments before committing to larger-scale deployment. The market has matured from “if” to “how,” and Stripe is now focused on the most efficient and scalable “how.”

SWOT Analysis

Table: SWOT Analysis of Stripe’s DAC Strategy
SWOT Category 2021 – 2023 2024 – 2025 What Changed / Resolved / Validated
Strength First-mover advantage as a co-founder of Frontier, establishing a powerful market-pull mechanism. Diverse early portfolio including Climeworks and AspiraDAC. Established market leadership, enabling large, multi-year offtake agreements with partners like Phlair ($30.6M deal) and 280 Earth ($40M deal). Portfolio is diversified across tech and geography (e.g., Deep Sky in Canada). The advance market commitment model was validated, transitioning Stripe from a market creator to a market shaper capable of executing large, sophisticated procurement deals.
Weakness Dependence on unproven, early-stage partners and high costs for first-of-a-kind removals (e.g., AspiraDAC purchase). Strategy was primarily based on a demand-pull hypothesis. Engagement remains through offtake agreements, not direct equity, creating a dependency on partners’ operational execution. The provided data lacks verifiable direct investment in DAC company equity. The core buyer-not-builder strategy was maintained. The risk profile evolved from early-stage technology failure to the commercial-scale delivery risk of its chosen partners.
Opportunity Opportunity to define the standards for high-quality carbon removal and shape the nascent market through R&D grants (Activate) and early purchases. Drive down long-term costs by backing more energy-efficient technologies (Phlair’s electrochemical DAC). Catalyze new DAC hubs in favorable regions (Deep Sky pilot in Canada). The opportunity shifted from simply creating a market to optimizing it. The focus is now on fostering competition and supporting technologies with a clear path to cost-effectiveness.
Threat Technological failure of early partners. Reputational risk if purchased credits could not be independently verified. Partners failing to deliver on large-volume, multi-year offtake commitments (e.g., Phlair’s 47,000 tonnes). Increased competition from other corporate buyers could drive up prices. The threat matured from small-scale R&D failure to large-scale commercial contract default. The verification of removal by Climeworks in 2023 significantly mitigated the initial verification threat.

Forward-Looking Insights and Summary

What to Watch: From Portfolio Diversification to Performance-Based Scaling

The most recent data from 2025 signals that Stripe’s DAC strategy is entering a new, more discerning phase. The era of broad, exploratory purchasing is giving way to a period of strategic procurement focused on performance and scalability. The deals with Phlair and Deep Sky are key indicators of this future direction: a dual focus on backing next-generation, high-efficiency technologies and validating operational performance in new, advantageous geographies.

Looking ahead, market actors should expect Stripe, through Frontier, to place larger bets on fewer, more proven partners. The key signal to watch will be which of the current portfolio companies receive follow-on, expanded offtake agreements—a clear indicator of successful delivery and technological maturation. Furthermore, pay close attention to the *type* of technology being backed. Another major investment in electrochemical or other novel DAC pathways would confirm that Stripe is aggressively pursuing a technology-driven cost-down curve. The early interest in Canada suggests that future partnerships may increasingly target regions with a combination of cheap renewable energy, talent, and supportive government policy. In essence, Stripe’s strategy has successfully catalyzed a market; now, it will focus on cultivating the most promising players within it to achieve climate-relevant scale.

Frequently Asked Questions

What is Frontier, and what is Stripe’s role in it?
Frontier is an advance market commitment (AMC) vehicle co-founded by Stripe in 2022 with an initial $925 million commitment. Its purpose is to aggregate demand from various buyers to accelerate the development of permanent carbon removal technologies by guaranteeing future revenue for promising, early-stage companies.

How has Stripe’s strategy for supporting Direct Air Capture (DAC) changed over time?
Stripe’s strategy has evolved from being a broad market-maker to a sophisticated strategic buyer. From 2021-2024, it focused on seeding the market with diverse, early-stage grants and purchases. Since 2025, it has shifted to making larger, targeted bets on specific technologies and companies, like Phlair and 280 Earth, that show a clear path to cost reduction and scalability.

Why is Stripe expanding its DAC partnerships into new countries like Canada?
The expansion into Canada with the Deep Sky pilot project is a strategic move to find regions with abundant, low-cost renewable energy and supportive government policies, which are critical for scaling DAC affordably. This helps Stripe diversify geographic risk, test technology performance in new environments, and catalyze the growth of new global DAC hubs.

What is the key difference between Stripe’s early financial commitments and its more recent ones?
Early commitments (2021-2024) consisted of smaller, catalytic purchases and R&D grants (e.g., $700,000 to AspiraDAC) designed to stimulate innovation. Recent commitments (2025-present) are multi-million dollar offtake agreements (e.g., a $30.6M deal involving Phlair), which provide long-term revenue certainty that helps DAC companies secure financing and scale their operations.

According to the analysis, how have the primary risks in Stripe’s strategy evolved?
Initially, the main threats were the technological failure of unproven partners and the reputational risk if purchased carbon removals could not be verified. Now, as the technology has matured and verification has been achieved (e.g., with Climeworks in 2023), the primary risk has shifted to large-scale commercial contract default, where partners may fail to deliver on large-volume, multi-year offtake commitments.

Want strategic insights like this on your target company or market?

Build clean tech reports in minutes — not days — with real data on partnerships, commercial activities, sustainability strategies, and emerging trends.

Experience In-Depth, Real-Time Analysis

For just $200/year (not $200/hour). Stop wasting time with alternatives:

  • Consultancies take weeks and cost thousands.
  • ChatGPT and Perplexity lack depth.
  • Googling wastes hours with scattered results.

Enki delivers fresh, evidence-based insights covering your market, your customers, and your competitors.

Trusted by Fortune 500 teams. Market-specific intelligence.

Explore Your Market →

One-week free trial. Cancel anytime.


Erhan Eren

Ready to uncover market signals like these in your own clean tech niche?
Let Enki Research Assistant do the heavy lifting.
Whether you’re tracking hydrogen, fuel cells, CCUS, or next-gen batteries—Enki delivers tailored insights from global project data, fast.
Email erhan@enkiai.com for your one-week trial.

Privacy Preference Center