The urgency to do something with the surplus of carbon in the atmosphere led to a surge in innovative approaches aimed at securing stable and contained storage solutions.
Notably, a number of startups in the carbon removal sector have drawn substantial investor interest, attracting hundreds of millions in funding over the course of this year, according to Crunchbase data. From underground storage to concrete mix and ocean sequestration, their strategies have gone beyond concepts to viable carbon removal solutions.
Recent funding trends reveal a notable increase in financing activities related to carbon removal initiatives. This surge in investment signifies a growing recognition to explore alternative solutions, considering the slow uptake of clean energy sources.
It further highlights the pressing need to fast-track the deployment of effective carbon reduction measures alongside existing clean energy efforts. Here are the startups with interesting carbon removal technologies, broken down by the places where they’re store the carbon.
Stowing Carbon in Soil
One common place to store carbon is in the soil. While capturing carbon through soil won’t be enough to remove what’s already in the air, it does help reduce emissions.
However, this would not be an easy task for most farmers, especially in cropping systems. This is where Loam Bio’s solution comes in to help farmers adopt farming practices that sequester more carbon.
The Australian startup aims to improve the quality and quantity of soil carbon capture via its unique microbial technology. Loam Bio, which closed a $73 million Series B round in February, said that its carbon sucking technology can turn croplands into giant carbon sinks.
Plants or crops do absorb CO2, but a San Francisco-based carbon removal startup, Charm Industrial, offers a different solution. It takes waste biomass, transforms it into bio-oil (stable, carbon-rich liquid), and then pumps it deep underground for permanent storage.
The company bagged $100 million in Series B funding for the goal of putting oil back underground. Here’s how its carbon removal technology works:

Sucking-in Carbon Through the Ocean
Recently, a trending way to store carbon is through the ocean. A couple of startups are developing technologies to capture and store carbon in this body of water.
On the list are two names that capture investors’ eyes – Ebb Carbon and Captura.
California-based Ebb Carbon, founded by former executives of Google X and Tesla, secured a $20 million Series A funding. The ocean-based carbon removal company claims to offer a solution to remove carbon at the gigaton scale.
Ebb is using an electrochemical ocean alkalinity enhancement technology, which speeds up the natural process of ocean alkalization that restores ocean chemistry while safely sucking in CO2 from the atmosphere.
Another startup that believes in the power of the ocean is Captura, also based in California. The carbon removal company is developing direct ocean capture (DOC) technology that filters CO2 out of seawater, enabling oceans to remove more carbon.
Captura’s process uses only renewable electricity and seawater to remove CO2 from the air, with no by-products and no absorbents. Their technology attracted $12 million from investors.

Locking Away Carbon in Concrete
Buildings, particularly those made from concrete, are considered as one of the major contributors to greenhouse gas emissions. That’s mainly because traditional Portland cement is responsible for emitting huge amounts of CO2 (about 8% of global GHG emissions).
Thus, several startups are creating ways to make low-carbon concrete and even carbon-negative. CarbonCure Technologies, a Nova Scotia-based company that’s backed by Amazon and Microsoft, is a leader in carbon removal for the concrete industry and a provider of high-quality carbon credits. Each ton of removed CO2 generates a credit.
The startup injects captured carbon into fresh concrete, locking it up so it doesn’t return back to the atmosphere. Its innovative technology attracted $80 million in a new equity round led by Blue Earth Capital in July.
Another significant player in this field is C-Crete Technologies, a startup innovating carbon sequestration for its patented cast-in-place (pourable) concrete. Its technology captures CO2 and makes it as an ingredient for a cement-free, carbon-negative concrete.
Each ton of C-Crete’s cement-free binder can prevent 1 ton of carbon emissions. Its technology attracted two separate funding support from the U.S. Department of Energy – almost $1 million and $2 million.
While some of these startups have demonstrated that their technologies work in capturing and removing carbon from the atmosphere, scaling them up remains unproven and carries a major risk as climate experts noted.
Yet, the massive investments poured into their innovative models and technologies speak of confidence in technology deployment and scalability.
In summary, here are the carbon removal-focused funded startups rounded on the list.
The surge of innovative startups in the carbon removal sector reflects a growing commitment to combat climate change by deploying practical solutions to store carbon across diverse environments. While the scalability of these technologies remains a concern, the significant investments flowing into these ventures underscore a growing confidence in their pivotal role in mitigating the effects of too much carbon in the air.
The post Carbon Removal Startups Are Finding More Places and Funds to Store CO2 appeared first on Carbon Credits.
Carbon Footprint
Indigo Carbon Surpasses 2 Million Soil Carbon Credits in Landmark 1.1 Million Issuance
Indigo Carbon announced it has now passed 2 million metric tons of verified climate impact from U.S. croplands. The company reached the milestone after issuing its fifth U.S. “carbon crop.” The new issuance includes 1.1 million independently verified carbon credits issued through the Climate Action Reserve (CAR).
Indigo describes the milestone in its announcement as a sign that soil-based carbon programs can scale. It also points to rising corporate demand for credits that meet stricter quality rules.
Indigo’s latest issuance is important because it is linked to a major registry method that now carries an additional integrity label. Max DuBuisson, Head of Impact & Integrity, Indigo, remarked:
“Indigo continues to set the standard for high-integrity soil carbon removals that corporate buyers can trust. Soil carbon is uniquely positioned to scale as a climate solution because it captures and stores carbon while also improving water conservation and crop resilience. By combining world-class science and technology with farmer-driven practice change, we’re proving that agricultural soil carbon is an immediate, durable, high-integrity solution capable of helping global companies meet their climate commitments.”
Inside the 1.1M Credit Issuance and CCP Label
Indigo says its fifth issuance includes 1.1 million carbon credits verified and issued through CAR. These credits come from Indigo’s U.S. soil carbon project, listed on the Climate Action Reserve under the Soil Enrichment Protocol (SEP) Version 1.1.
CAR’s SEP is designed to quantify and verify farm practices that increase soil carbon and reduce net emissions. It covers changes in soil carbon storage and also includes reductions in certain greenhouse gases tied to farm management.
CAR’s SEP Version 1.1 has the ICVCM Core Carbon Principles (CCP) label. This means the method meets the standards set by the CCP framework.

Indigo’s disclosures also describe long-term monitoring rules. The company reports that its U.S. project includes 100 years of project-level monitoring after credit issuance, in line with CAR requirements. This mix of independent verification, registry issuance, and long monitoring periods is central to the case Indigo makes for credit quality.
Breaking Down the 2 Million Ton Milestone
Indigo says its total verified impact now exceeds 2 million metric tons of carbon removals and reductions across U.S. croplands.
In carbon markets, one credit equals one metric ton of CO₂ equivalent. Indigo’s latest issuance is very large by soil carbon standards. It also builds on earlier “carbon crop” issuances.
Indigo’s project disclosures include a quantified impact figure for its U.S. project. The company reports 927,367 tCO₂e reduced or removed through Dec. 31, 2023, for the project listed as CAR1459.

Indigo announced it has saved 118 billion gallons of water. It has also paid farmers $40 million through its programs so far. These points matter because many buyers now look beyond carbon totals. They also want evidence of farmer payments, monitoring rules, and co-benefits like water conservation.
Corporate Demand Shifts Toward Verified Removals
One reason soil carbon is getting more attention is the growing demand from buyers for removals. Many companies now focus more on carbon removal credits, not only avoidance credits.
Indigo’s largest recent buyer example is Microsoft. In January 2026, the carbon ag company announced a 12-year agreement under which Microsoft will purchase 2.85 million soil carbon removal credits from them.
- The soil carbon producer said this is Microsoft’s third transaction with the company, following purchases of 40,000 tonnes in 2024 and 60,000 tonnes in 2025.
The tech giant’s purchases show how corporate buyers may use long-term offtake deals to secure future supply of credits. This matters for soil carbon programs because credits are typically generated over multiple years. And they also depend on practice changes and verification cycles.
Indigo also says its program works across eight million acres, which signals how it is trying to scale participation across U.S. farms.
Soil Carbon Credits: Market Trends and Forecast
Soil carbon credits are gaining attention as buyers shift toward higher-quality credits and clearer verification rules. Ecosystem Marketplace reports that the voluntary carbon market is entering a new phase. This phase emphasizes integrity, even though trading activity has slowed down.
In its 2025 market update, Ecosystem Marketplace noted a 25% drop in transaction volumes. This decline shows lower liquidity as buyers are becoming more selective.

At the same time, demand for higher-quality credits is rising. Sylvera’s State of Carbon Credits 2025 reported that retirements dropped to 168 million credits in 2025, a 4.5% decrease.
Still, the market value climbed to US$1.04 billion due to rising prices. It also found that higher-rated credits (BBB+) made up 31% of retirements, and traded at higher average prices than lower-rated supply.
For soil carbon, buyers are also watching methodology quality. The ICVCM has approved two sustainable agriculture methods as CCP-approved. These are the Climate Action Reserve’s Soil Enrichment Protocol v1.1 and Verra’s VM0042. This can support stronger buyer confidence and may increase demand for soil credits that meet CCP rules.
Looking ahead, Sylvera projects compliance-linked demand will keep growing and could exceed voluntary demand by 2027. That trend may favor credits with stronger verification and compliance alignment, including higher-integrity soil carbon credits. However, integrity issues still occur, and this is where Indigo comes in.
Tackling Permanence and MRV Head-On
Soil carbon credits face a key challenge: carbon stored in soil can be reversed. A drought, land use change, or a shift in farm practices can reduce stored carbon.
This is why monitoring and reversal rules matter. CAR’s protocol is built to quantify, monitor, report, and verify practices that increase soil carbon storage.
Indigo’s project disclosure notes that projects are monitored for 100 years after they are issued. This shows the durability rules tied to their method and registry approach.
The company also positions its program as “outcome-based,” meaning it pays for verified carbon outcomes rather than paying only for adopting a practice. This messaging is designed to reassure buyers that credits are not only modeled. It stresses verification and the registry process.
A Scale Test for High-Integrity Soil Carbon
Indigo’s fifth issuance lands at a time when voluntary carbon markets are placing more weight on integrity labels and independent verification.
Two parts stand out:
- First, volume. An issuance of 1.1 million credits through a registry is large for an agricultural soil carbon program.
- Second, method approval. CAR’s SEP Version 1.1 carries the ICVCM CCP label, which is meant to signal alignment with a global integrity benchmark.
That combination may make it easier for corporate buyers to justify purchases internally. Many companies now face stronger scrutiny from auditors, regulators, investors, and civil society groups.
At the same time, more supply does not automatically mean market confidence rises. Buyers still assess risks such as permanence, additionality, and measurement uncertainty.
Even so, the milestone shows how fast some parts of the removals market are trying to scale. Large buyers are also helping drive this shift through multi-year offtake deals, like the Microsoft agreement for 2.85 million credits.
For Indigo, the new issuance supports its claim that soil carbon is moving from small pilot volumes toward larger, repeatable issuances. For the market, it adds another real-world data point: a major soil carbon program has now completed five issuance cycles and passed 2 million metric tons of verified climate impact.
The post Indigo Carbon Surpasses 2 Million Soil Carbon Credits in Landmark 1.1 Million Issuance appeared first on Carbon Credits.
Carbon Footprint
Meta, Amazon, Google, and Microsoft Dominate Clean Energy Deals as Global Buying Slips in 2025
For nearly a decade, global companies have been racing to buy clean energy from wind farms, solar parks, and other green power projects. But 2025 marked the first decline in this trend in almost ten years — a surprising shift that signals a changing landscape for corporate sustainability.
The latest report from BloombergNEF (BNEF) shows that corporate clean energy purchasing dropped about 10% in 2025, falling from roughly 62.2 gigawatts (GW) in 2024 to 55.9 GW last year.
Let’s break down why this happened, what it means, and how the market could evolve in the coming years.
Clean Energy Buying: The Big Picture
Corporate clean energy buying usually happens through power purchase agreements (PPAs). They are long-term contracts where companies agree to buy electricity directly from renewable energy projects, often wind or solar farms.
For years, this was one of the fastest-growing parts of the clean energy market. Companies like Google, Amazon, Meta, and Microsoft drove most of the demand, helping build huge amounts of renewable capacity. But 2025 interrupted that streak.
Even though 55.9 GW is still one of the largest annual totals ever, the fact that it is lower than the year before shows a real shift in how companies approach renewable energy deals.
Why Corporate Clean Energy Buying Fell
There are several reasons why corporate clean energy buying slowed in 2025:
Corporate buyers are sensitive to electricity market rules and government policies. In many regions, uncertain policy environments made it harder to finalize long-term clean energy contracts. In the United States, for example, uncertainty about future clean energy incentives and carbon accounting standards caused many smaller corporations to hold off on signing new deals.
In some power markets, especially in parts of Europe, there were long hours of negative electricity prices. This happens when supply exceeds demand and power becomes so cheap that producers pay buyers to take it.
These price swings make standalone solar and wind contracts less attractive, especially for companies that want predictable, long-term value from their clean energy purchases.

Dominance of Big Tech
Another key point in the BloombergNEF findings is that the market is becoming more concentrated. As said before, four major tech firms, like Meta, Amazon, Google, and Microsoft, signed nearly half of all clean energy deals in 2025.
Meta and Amazon alone contracted over 20 GW of clean power last year, including deals that cover not just solar or wind, but also nuclear power — something unusual in past corporate PPA markets.
While this heavy concentration helps maintain volume, it also means that smaller companies are scaling back, which lowers the total number of buyers and contributes to the overall slowdown.

- READ MORE: Clean Energy Investment Hits Record $2.3T in 2025 Says BloombergNEF: What Leads the Surge?
Regional Differences: Where Things Slowed and Where They Didn’t
Corporate clean energy markets didn’t all move in the same direction last year. Bloomberg’s data shows clear regional patterns:
United States
The U.S. remained the largest single market for corporate clean energy deals, signing a record 29.5 GW of commitments. Much of this came from major technology companies looking to match their growing electricity needs with zero-carbon power sources.
Yet despite these high numbers, the number of unique corporate buyers in the U.S. dropped by about 51%, as many smaller firms pulled back from signing new PPAs.
Europe, Middle East & Africa (EMEA)
In the EMEA region, corporate PPAs fell around 13% in 2025, slipping back to levels closer to 2023. In Europe, in particular, rising negative prices and unstable policy conditions discouraged many new deals.
Asia Pacific
Asia had a mixed story. Some markets like Japan and Malaysia continued to attract corporate clean energy buyers, thanks to mature PPA markets and supportive regulations. But slower activity in countries like India and South Korea contributed to a drop in total volumes in the region.

The Rise of Hybrid and Firm Power Deals
One interesting trend that emerged in 2025 is that companies are looking beyond just wind and solar. Because of the limitations with standalone renewable deals, many buyers are now exploring hybrid power contracts that mix renewables with storage, or even nuclear and geothermal sources.
Hybrid deals like solar paired with battery storage give companies more reliable power and help manage price and supply risks. BloombergNEF tracked nearly 6 GW of these hybrid agreements in 2025, and expects this share to grow.
- According to a report by SEIA and Benchmark Mineral Intelligence, the United States added a record 28 gigawatts (GW) / 57 gigawatt-hours (GWh) of battery energy storage systems (BESS) in 2025. It reflected a 29% year-over-year increase.
Cheaper battery costs are part of this trend. Recent data shows that the cost of four-hour battery storage projects fell about 27% in 2025, reaching record lows. This makes storage-based renewable contracts more financially compelling.

Big Companies Still Push the Market
Even with the overall slowdown, corporate clean energy buying remains strong, especially among large technology firms.
In fact, while smaller companies took a step back, the major tech buyers helped keep total volumes near all-time highs. In other words, the market didn’t crash; it just shifted shape.
This becomes even clearer when we look at individual company progress. Microsoft reported recently that it now matches 100% of its global electricity use with renewable energy, an achievement that required decades of energy contracts and partnerships.
The Clean Energy Market Is Resetting, Not Retreating
The IEA projects that renewables will provide 36% of global electricity in 2026. This shows that the energy transition is moving forward, even if corporate clean energy purchases dipped in 2025. The slowdown does not signal failure. Instead, it reflects a market that is adapting as companies, technologies, policies, and economics evolve together.

Growth in corporate renewable deals is not always steady. A single year of lower volumes does not erase the gains of the past decade. Instead, it highlights the natural adjustments markets go through as strategies shift and conditions change.
In this transitioning phase, policy and regulation remain critical. Clear rules, incentives, and supportive frameworks encourage smaller companies to participate. Additionally, regions that provide stability, such as parts of the Asia Pacific, are seeing continued growth in corporate clean energy demand.
In conclusion, even with the dip in 2025, corporate renewable energy purchasing is far larger than it was ten years ago. The market is shifting rather than shrinking, and companies continue to find ways to power growth with clean energy. This slowdown may serve as a wake-up call, encouraging smarter, more flexible strategies that can sustain the energy transition for years to come.
- ALSO READ: Renewables 2025: How China, the US, Europe, and India Are Leading the World’s Clean Energy Growth
The post Meta, Amazon, Google, and Microsoft Dominate Clean Energy Deals as Global Buying Slips in 2025 appeared first on Carbon Credits.
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