Ebb Carbon Pitch Deck: All 14 Slides + Teardown

Ebb Carbon’s Series A deck is a masterclass in translating complex geochemistry into a digestible investment narrative. By framing their technology as an acceleration of the Earth’s natural carbon regulation cycle, the company bypasses the 'science fiction' stigma often associated with geoengineering. The deck effectively highlights a dual-value proposition: carbon removal and ocean de-acidification, which appeals to both climate-focused and impact-driven investors. While the deck is visually sparse on financial modeling and specific go-to-market milestones, it successfully anchors its valuat…

Key takeaways

• The deck frames the problem using IPCC data, stating a global need to remove 10 gigatons of CO2 to limit warming to 1.5°C (Slide 2).
• Ebb Carbon positions its technology as an electrochemical acceleration of natural ocean alkalization, which normally takes millions of years (Slide 4).
• The process produces a 'low footprint carbon acid' as a byproduct for climate-positive purposes (Slide 1).
• A core financial claim is the target to reach carbon removal costs of less than $100/ton of CO2 within 5 years (Slide 6).
• The technology promises long-term permanence, storing CO2 as bicarbonate in the ocean for over 10,000 years (Slide 6).
• The go-to-market strategy relies on 'intercepting' saltwater from existing industries like desalination and aquaculture to improve their brine discharge and yields (Slide 5).
• The team slide emphasizes a multidisciplinary approach, listing chemists, engineers, physicists, and oceanographers, though it lacks specific names or past company logos (Slide 7).
• The deck omits a specific 'Ask' slide, financial projections, or a detailed breakdown of the $20M Series A allocation.

Frequently asked questions

What is Ebb Carbon's primary technology?

Ebb Carbon uses an electrochemical process to accelerate ocean alkalization. As shown on Slide 1 and Slide 4, the system intercepts saltwater, processes it to remove acid, and returns alkaline water to the ocean. This increases the ocean's capacity to absorb CO2 from the air, converting it into stable bicarbonate.

How does Ebb Carbon plan to scale its operations?

Instead of building entirely new coastal infrastructure, Ebb Carbon intends to partner with existing industries. Slide 5 identifies five key sectors: Desalination, Aquaculture, Industrial, Brownfield sites, and Research Labs. By integrating with these facilities, they can process existing water streams to improve water quality while removing carbon.

What are the projected costs for their carbon removal?

According to Slide 6, Ebb Carbon aims to be 'Cost Competitive' by bringing the cost of their carbon removal credits to less than $100 per ton of CO2 within a five-year timeframe. This is a critical benchmark for the voluntary and compliance carbon markets.

How long is the carbon stored using this method?

The deck claims high permanence for its solution. Slide 6 states that the excess CO2 removed from the air is stored as bicarbonate in the ocean for more than 10,000 years, making it a durable sequestration method compared to biological solutions like reforestation.

What is missing from the Ebb Carbon Series A deck?

The deck is notably missing traditional venture capital slides, including a detailed competitive landscape, a specific use of proceeds for the $20M raised, and a slide detailing the founders' specific professional backgrounds or previous exits. It also lacks a clear revenue model beyond the mention of carbon credits.

Ebb Carbon pitch deck: the facts

Company

Ebb Carbon

Year

2024

Stage

Series A

Slides

14

Sector

Social impact / Climate Tech

Deck type

Pitch Deck

Outcome

$20M Raised

Headquarters

N. America

Ebb Carbon pitch deck PDF

The full Ebb Carbon deck is embedded on this page and can be read slide by slide in the browser — no download or account required. Each slide is covered in the breakdown above.

What the Ebb Carbon pitch deck was used for

This pitch deck is Ebb Carbon’s Series A fundraising presentation used to secure approximately $20 million in ocean‑based carbon dioxide removal financing, highlighted by Business Insider in 2023.[2][5][14] The company proposes using electrochemical ocean alkalinity enhancement to accelerate the natural ocean alkalization process, enabling permanent CO2 storage as bicarbonate and reducing ocean acidification.[2][8][13] The deck positions Ebb Carbon as a climate‑tech and social‑impact venture partnering with existing coastal and industrial infrastructure to deploy its systems and sell carbon removal credits. At the time of the deck, funding was aimed at developing and deploying initial systems, including a first installation targeting around 100 tons of CO2 removal per year.[2][11][14]

Business model: Ebb Carbon develops electrochemical ocean alkalinity enhancement systems that use seawater and low‑carbon electricity to increase ocean alkalinity, thereby removing atmospheric CO2 and storing it as bicarbonate while also helping mitigate ocean acidification.[2][8][11][13]

Round

Series A

Lead investor

Prelude Ventures and Evok Innovations (two closes of the Series A round).

Investors

Prelude Ventures, Evok Innovations, Congruent Ventures, Incite, Grantham Environmental Trust (Grantham Foundation), Propeller, Lowercarbon Capital

Headquarters

South San Francisco, California, United States.[6]

Industry

Climate tech / carbon dioxide removal (CDR) and water technology.[2][10][14]

Year: 2023 (initial $20M Series A announcement); updated total referenced in 2024.[2][5][6][14]

Raised: $20 million Series A announced April 2023; later corporate communication cites a $22 million Series A total by 2024.[1][2][5][6][14]

Total funding: Ebb Carbon announced a $20 million Series A round in April 2023, described as the largest investment to date in ocean‑based carbon dioxide removal.[2][5][1][14] A later press release states the company had raised a $22 million Series A by 2024.[6]

Use of funds as presented: Develop and further refine Ebb Carbon’s electrochemical ocean alkalinity enhancement technology and deploy initial systems, including a first installation capable of removing about 100 tons of CO2 per year and a subsequent system with roughly 10x more capacity.[2][11][14]

What happened after the Ebb Carbon deck

Following its Series A pitch deck and fundraise, Ebb Carbon has moved from development to deployment of electrochemical ocean alkalinity enhancement systems, including a demonstration unit at PNNL and large offtake agreements, positioning the company as an active player in ocean‑based carbon removal.[2][3][4][6][7][9][11][14]

• Ebb Carbon deployed a demonstration‑scale marine carbon dioxide removal unit at Pacific Northwest National Laboratory in
• The company secured what has been described as the largest marine carbon removal agreement to date with Microsoft, invol
• Ebb Carbon advanced its technology through lab and field trials and reported peer‑reviewed science supporting safe and e

What the Ebb Carbon deck got right

• Strong, science‑driven explanation of the core technology. The deck articulates a **clear scientific mechanism**—electrochemical ocean alkalinity enhancement using ion‑selective membranes and low‑carbon electricity to separate seawater into alkaline and acidic streams, with the alkaline stream returning to the ocean to react with CO2 and store it as bicarbonate.[Slide 8 OCR][8][11][13]
• Compelling long‑term permanence narrative. Slides emphasize **permanence** by claiming that excess atmospheric CO2 is stored as bicarbonate in the ocean for more than 10,000 years, directly addressing a key investor concern in carbon removal.[Slide 11 OCR][11][13]
• Dual climate and ocean‑health impact. The deck frames the solution as both **additional and restorative**, highlighting that removed carbon is 100% additional and that reduced seawater acidity can benefit shellfish and coral reefs, which strengthens the social‑impact and biodiversity story.[Slide 6, 11 OCR][3]
• Clear cost‑competitiveness goal. Cost claims that carbon removal credits will be **less than $100/ton within five years** provide a clear economic target and signal a path to competitive carbon removal pricing.[Slide 11 OCR][7]
• Credible co‑location and partnership deployment strategy. Ebb Carbon highlights partnering with **existing industries and infrastructure** such as desalination, aquaculture, and industrial brownfields, suggesting a pragmatic deployment model leveraging existing coastal assets.[Slide 9 OCR][9]
• Gigaton‑scale ambition aligned with impact investors. The deck communicates an ambitious mission to **remove gigatons of CO2** and create a healthier planet for future generations, which aligns with impact‑oriented capital and positions the company for large‑scale climate relevance.[Slide 6 OCR][8][10]

What could have been stronger

• Limited quantified technical and regulatory traction in the visible slides. The deck text provided does not show any quantified traction such as operating hours, CO2 removed to date, pilot results, or regulatory permits, despite the technology’s novelty and potential environmental risk, leaving investors without concrete performance evidence on the slides themselves.[8][11]
• Aggressive cost‑per‑ton claim without detailed economics in‑deck. Although the deck claims carbon removal credits will cost less than $100 per ton within five years, it does not present a visible cost breakdown, unit economics, or sensitivity analysis to support this target in the OCR’d content.[Slide 11 OCR][7]
• Partnership strategy shown without named or quantified partners. The slides emphasize partnerships with desalination, aquaculture, and industrial brownfield sites but, in the OCR’d snippets, do not name specific counterparties or contract types (e.g., MOUs vs. paid pilot agreements), making it hard to judge the maturity of these relationships from the deck alone.[Slide 9 OCR][9]
• Sparse in‑deck evidence of independent scientific validation. The deck foregrounds permanence (10,000+ years) and restorative effects on marine ecosystems but, in the visible text, does not reference external scientific validation, standards bodies, or monitoring plans directly on the slides, which may concern investors focused on measurement and verification in ocean CDR.[Slide 11 OCR][3][4][9]
• Limited competitive landscape discussion in visible content. There is no explicit mention in the OCR’d slides of comparative technologies, competing ocean CDR approaches, or substitute solutions, limiting the deck’s ability to show Ebb Carbon’s differentiation and potential advantages over other CDR methods.[Slide 6–11 OCR]

How an investor would read this deck

What draws attention

• Claims of **10,000+ year permanence** via storage of CO2 as bicarbonate in the ocean are central to Ebb Carbon’s value proposition and would merit close examination of underlying geochemical models and monitoring plans.[Slide 11 OCR][11][13]
• The promise that carbon removal credits will cost **less than $100/ton within five years** is a key economic claim; investors will focus on the cost structure, energy inputs, and scalability assumptions behind this figure.[Slide 11 OCR][7]
• Partnerships with desalination plants, aquaculture operations, and industrial brownfield sites suggest a co‑location strategy that could lower deployment costs; investors will want detail on specific sites, counterparties, and revenue‑sharing structures.[Slide 9 OCR][9]
• The technology’s dual impact—carbon removal and ocean de‑acidification—positions Ebb Carbon for climate and biodiversity narratives, which may be attractive for corporate buyers like Microsoft and impact‑oriented funds.[3][6][7]
• The Series A being described as the largest investment to date in ocean‑based CDR and later expanded to $22 million signals strong investor confidence and may indicate a favorable fundraising environment for follow‑on rounds.[1][2][6][14]

Risks that stand out

• Regulatory and public‑perception risk around ocean geoengineering and marine CDR could slow permitting or trigger project opposition, particularly if ecological impacts are not clearly communicated and independently verified.[3][11]
• Technical risk exists that long‑term ocean chemistry responses may differ from modeled expectations, potentially affecting both permanence claims (10,000+ years) and local marine ecosystems.[Slide 11 OCR][13]
• Cost‑competitiveness depends on access to low‑carbon electricity and durable, affordable membrane stacks; unfavorable energy prices or component degradation could challenge the sub‑$100/ton target.[Slide 8, 11 OCR][7][8]
• Execution risk includes scaling from pilots (~100 tons/year) to large‑scale systems and fulfilling large offtake commitments such as up to 350,000 tonnes with Microsoft.[3][6][7][11]
• Policy and market risk arises from evolving standards for measurement, reporting, and verification (MRV) in carbon removal markets, which could affect credit eligibility or pricing for ocean‑based methods.[3][4][11]

Questions this deck invites

• What experimental and field‑trial data (including the PNNL Sequim pilot) demonstrate that Ebb Carbon’s systems achieve the claimed CO2 removal rates and ocean de‑acidification effects without adverse ecological impacts?[4][11]
• How does Ebb Carbon’s cost trajectory toward sub‑$100/ton carbon removal break down by capital expenditure, membrane stack costs, electricity pricing, and operating expenses, and what assumptions underpin this five‑year target?[Slide 11 OCR
• What regulatory approvals and environmental assessments have been secured for current and planned deployments, and how does Ebb Carbon engage with local communities and stakeholders around ocean geoengineering concerns?[3][11]
• What are the terms, duration, and performance obligations of major offtake agreements such as the Microsoft deal for up to 350,000 tonnes of CO2 removal over 10 years?[3][6][7]
• How scalable is the electrochemical OAE system in terms of membrane lifetime, maintenance requirements, and access to low‑carbon electricity across diverse coastal geographies?[7][8][11][13]

What founders can take from the Ebb Carbon deck

• Anchoring a climate‑tech pitch around a **clear scientific mechanism**—in this case electrochemical ocean alkalinity enhancement and the ocean’s natural carbon cycle—can help investors understand how the technology works and why permanence claims are plausible.[7][8][11][13]
• Explicitly linking technology benefits to **multiple impact vectors** (carbon removal plus ocean de‑acidification and marine life benefits) can broaden appeal to climate, biodiversity, and ESG‑oriented investors.[Slide 6–11 OCR][3]
• Quantitative targets such as **gigaton‑scale potential**, **100‑ton pilot systems**, and **sub‑$100/ton cost goals** provide concrete milestones that investors can use to assess progress and scalability.[Slide 6, 8, 11 OCR][2][7][11][14]
• Positioning around **existing infrastructure partners** (desalination, aquaculture, industrial sites) illustrates a realistic deployment path and can reassure investors about site access and integration.[Slide 9 OCR][9]
• Framing permanence and additionality clearly—storing excess CO2 as bicarbonate for 10,000+ years and emphasizing 100% additional carbon removed—can strengthen the case that credits deliver real, durable climate benefits.[Slide 11 OCR][11][13]
• Showcasing that a round is the **largest to date** in its niche (ocean‑based CDR) and naming high‑credibility investors can serve as strong social proof in a pitch deck.[1][2][5][14]

Ebb Carbon pitch deck: common questions

What does Ebb Carbon do?

Ebb Carbon is a climate‑tech company that develops electrochemical ocean alkalinity enhancement systems to remove atmospheric CO2 by increasing ocean alkalinity and storing carbon as bicarbonate in seawater, while helping mitigate ocean acidification.[2][8][11][13]

How much did Ebb Carbon raise in its Series A, and when?

According to Ebb Carbon’s own announcement and Business Insider’s coverage, the company raised a $20 million Series A round announced in April 2023, described as the largest investment to date in ocean‑based carbon dioxide removal.[2][5][1][14] A later corporate press release cites a $22 million Series A total by 2024.[6]

Who invested in Ebb Carbon’s Series A round?

Ebb Carbon’s Series A was led in two closes by Prelude Ventures and Evok Innovations, with participation from Congruent Ventures, Incite, and the Grantham Environmental Trust (Grantham Foundation).[2][5][1][14] Additional investor listings also associate Propeller and Lowercarbon Capital with Series A participation, though these are not mentioned in the original round announcements.[15]

What core technology and benefits does the Ebb Carbon pitch deck highlight?

The deck emphasizes using electrochemical ocean alkalinity enhancement with ion‑selective membranes and low‑carbon electricity to split seawater into alkaline and acidic streams. The alkaline stream is returned to surface ocean waters, where it reacts with CO2 and stores it as bicarbonate for over 10,000 years, enabling scalable, cost‑competitive carbon removal and reduced ocean acidity.[8][11][13]

What deployment plans and capacity targets were associated with this pitch deck and Series A?

Ebb Carbon’s own communications and Department of Energy materials describe initial systems with capacity to remove about 100 tons of CO2 per year, deployed in partnership with Pacific Northwest National Laboratory in Washington State, with plans for a follow‑on system with roughly 10x greater capacity.[2][11][14]

Sources

Funding and outcome facts on this page were researched on 2026-08-30 from the pages below.

• Ebb Carbon Raises $20 Million In Largest Ocean ...
• Announcing Ebb Carbon's Series A
• A drop in the ocean: does experimental technology hold the key to saving the world's seas?
• Novel field trial for ocean alkalinity enhancement ... - FAO AGRIS
• Ebb Carbon: Ocean Carbon Removal Startup Raises $20 ...
• Ebb Carbon Signs Deal With Microsoft for CO2 Removal
• Ebb carbon dioxide removal (CDR) project Macoma - Technology ...
• Solution

Ebb Carbon pitch deck slides

What each slide of the Ebb Carbon pitch deck says

Slide 3

Limit global temperature increase to: We need to SP remove 10 . CC gigatons of w D carbon dioxide f = lima nee from the air to E limit warming to 2 jm cH

Slide 5

Ebb Carbon —— taps into the — “mms OCEAN's poWerto EE remove carbon — dioxide from the air. a

Slide 6

We deliver high quality carbon removal while restoring the ocean Using seawater and low-carbon electricity, we can remove gigatons of CO, permanently at competitive costs We are on a mission to create a healthier planet for generations to come

Slide 7

The earth regulates the chemistry of the ocean and draws down CO, from the air through ocean alkalization, a process that happens naturally over millions of years. We use electrochemistry to accelerate this process so atmospheric carbon can be safely removed fast enough to counteract climate change and de-acidify seawater.

Slide 8

Electrochemical Ocean Alkalinity Enhancement Using ion-selective electrochemical membranes and low-carbon electricity, Ebb Carbon separates salt water into alkalinity and acid. Dispersed at the ocean's surface, the alkalinity reacts with CO, and stores it as bicarbonate. ElectroCoastal chemistry surface ocean Alkalinity Processing Alkalinity Dispersal Source Method Type Approach

Slide 9

We partner with existing industries and infrastructure Desalination Aquaculture Industrial Brownfield Researchilabe Improving brine Improving yields Improving Repurposing discharge and and supporting industrial shuttered Advancing 4 3 ocean science creating revenue farmers water quality industrial sites ¢ +

Slide 11

Permanence We help the ocean store excess CO, in the air as bicarbonate in the ocean for 10,000+ years Advantages Additional Scalable The carbon we remove The vast surface area of is 100% additional the ocean enables us to remove gigatons of CO, from the air every year Restorative Our solution reduces the acidity of seawater, which can benefit marine life like shellfish and coral reefs. Cost Competitive Our carbon removal credits will cost less than $100/ton of CO, in 5 years

Slide text above is read directly from the Ebb Carbon deck PDF embedded on this page.

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