About Alt Carbon
Alt Carbon is a company based in Kolkata (India) founded in 2023 by Sparsh Agarwal and Shrey Agarwal. Alt Carbon has raised $12.55 million across 2 funding rounds from investors including Angel List, ACT Grants and PointOne Capital. The company has 1 employees. Alt Carbon offers products and services including Hari Mati. Alt Carbon operates in a competitive market with competitors including Terradot, Eion, InPlanet, Everest Carbon and Cascade Climate, among others.
- Headquarter Kolkata, India
- Employees 1
- Founders Sparsh Agarwal, Shrey Agarwal
- Stage Minicorn
- SectorsEnvironment
- Email••••••••
- Website alt-carbon.com
- Social LinkedIn X
- Legal Name Alt Carbon Tech Pvt. Ltd
- Date of Incorporation 22 Aug, 2023
- Jurisdiction Kolkata, West Bengal, India
- Net Loss-₹24.9 Lakh
FY 2024 · -37447387% margin
- EBITDA-₹24.9 Lakh
FY 2024 · -37447387% margin
- Total Equity Funding$12.55M (USD)
in 2 rounds
- Latest Funding Round$12M (USD), Seed
May 2025
- InvestorsAngel List
& 13 more
- Employee Count1
Associated legal entities of Alt Carbon
Alt Carbon is associated with 2 registered companies on The Company Check; the primary company is Alt Carbon Tech Private Limited. Each company page carries the filings, financials, charges and directors of that entity.
| Legal entity | Status | Incorporated | Registered in | Revenue (FY 2024) | Employees | Directors | Company page |
|---|---|---|---|---|---|---|---|
| Alt Carbon Tech Private Limited CIN U19109WB2023PTC264424 | Active | 22 Aug 2023 | Kolkata, West Bengal | ₹0.0 Cr | 31 | 3 | View details |
| Altered Carbon Technologies Private Limited CIN U72900UP2018PTC104935 | Strike Off | 01 Jun 2018 | Jhansi, Uttar Pradesh | – | – | 2 | View details |
Products & Services of Alt Carbon
Alt Carbon offers a comprehensive portfolio of products and services, including Hari Mati.
Proprietary mix for accelerating CO2 mineralization and improving yields
Funding Insights of Alt Carbon
Alt Carbon has successfully raised a total of $12.55M across 2 strategic funding rounds. The most recent funding activity was a Seed round of $12 million completed in May 2025. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $12.55M
- Total Rounds 2
- Last Round Seed — $12M
- First Round $550,000
(Dec 2023)
- Investors Count 14
All 2 funding rounds of Alt Carbon with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| May 2025 | $12M | Seed | – | Lachy Groom | |
| Dec 2023 | $550,000 | Seed | $3.22M | Shastra VC, Utsav Somani |
| Date | Valuation | Stage |
|---|---|---|
| Dec 2023 | $3.22M | •••••••• |
Last known valuation $3.22M (Dec 2023). 14 investors in total: 6 institutional and 8 angel.
Investors in Alt Carbon
Alt Carbon has secured backing from 14 investors, including venture fund, institutional, and angel investors. Prominent investors backing the company include Angel List, ACT Grants and PointOne Capital.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Venture capital investments are provided to early-stage startups across sectors. | – | shastra.vc | Bengaluru, India | |
Venture capital fund investing in pre-seed tech startups with support services. | 2020 | pointone.capital | Bengaluru, India | |
Seed capital grants are provided to incubate and accelerate innovations. | 2020 | actgrants.in | Bengaluru, India | |
Limited information available | – | utsavsomani.com | - | |
Alternative investment platform for startups and investors is operated. | 2010 | angellist.com | San Francisco, United States | |
Apogee is engaged in corporate planning and financial advisory services. | – | apogeecapital.co.in | - | |
AA Awais Ahmed | Founder of Pixxel, space tech innovator, and active angel investor | – | unknown_dbf5875a20a94c249 | - |
LG Lachy Groom | Angel investor, ex-Stripe, founder of LGF, active in Indian startups | – | unknown_c01372c824994586a | - |
JZ Jason Zhao | - | – | unknown_7fef6ff1234f43498 | - |
AS Amarendra Singh | - | – | unknown_b7402a0865be4f2a8 | - |
Investor details for Alt Carbon
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
- Complete investor list
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Verified entity values are shown only after access is granted.
Board of directors of Alt Carbon Tech Private Limited (Alt Carbon)
Alt Carbon Tech Private Limited is the primary company behind Alt Carbon. The boards of the 2 registered companies of Alt Carbon currently have 5 directors; the longest-serving is Chetan Kumar, appointed in 2018. 1 earlier director has ceased.
| Director | Designation | Appointed | Tenure | Entity |
|---|---|---|---|---|
| Chetan Kumar DIN 08148312 | Director | 01 Jun 2018 | 8 yrs 4 mo | Altered Carbon Technologies Private Limited |
| Sudha Sasikumar DIN 08175636 | Additional Director | 09 Jul 2018 | 8 yrs 3 mo | Altered Carbon Technologies Private Limited |
| Shrey Agarwal DIN 10288789 | Director | 22 Aug 2023 | 3 yrs 1 mo | Alt Carbon Tech Private Limited |
| Sparsh Agarwal DIN 09002775 | Director | 22 Aug 2023 | 3 yrs 1 mo | Alt Carbon Tech Private Limited |
| Roma Agarwal DIN 01243617 | Director | 22 Aug 2023 | 3 yrs 1 mo | Alt Carbon Tech Private Limited |
People of Alt Carbon
2 people are tracked at Alt Carbon (2 in leadership); the tracked headcount is 1.
| Name | Role | Group |
|---|---|---|
| Co-Founder | Leadership | |
| Co-Founder & CEO | Leadership |
Complete people profiles for Alt Carbon
Full employee and board profiles, team structure, tenure and professional contact details require an active premium plan.
- Full employee list
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- Professional contacts
Verified entity values are shown only after access is granted.
Financials of Alt Carbon
Figures of Alt Carbon Tech Private Limited, the primary company behind Alt Carbon, for FY 2024. Net loss was -₹24.9 Lakh (-37447387% margin). EBITDA was -₹24.9 Lakh (-37447387% margin).
- -₹24.9 LakhNet loss · -37447387% margin
- -₹24.9 LakhEBITDA · -37447387% margin
- ₹1.7 LakhPaid-up capital
- 31Employees (provident fund records)
Balance sheet, profit and loss, cash flow and ratios of Alt Carbon Tech Private Limited are on its company page.
Detailed financial statements for Alt Carbon
Statement rows, ratios, five-year trends and downloadable financials of the group companies require an active premium plan.
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Verified entity values are shown only after access is granted.
Timeline of Alt Carbon
4 dated milestones of Alt Carbon across 2 years, from founding to its latest funding, stage changes and deals.
- Founded Alt Carbon is founded.
- Funding First funding round of $550K.
- Milestone Reaches Minicorn status.
- Funding Latest funding round, Seed, of $12.0M.
Competitors of Alt Carbon
Alt Carbon operates in a dynamic and competitive business environment, facing competition from various established players and emerging companies in the market. The competitive landscape includes prominent companies such as Terradot, Eion, InPlanet, Everest Carbon and Cascade Climate, among others.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| terradot.earth | 2023 | Stanford, United States | $62.2M | – | Carbon removal is facilitated via enhanced rock weathering technology. | |
| eioncarbon.com | 2021 | Princeton, United States | $12M | – | Enhanced rock weathering is used for agricultural carbon removal. | |
| inplanet.earth | 2022 | Munich, Germany | $5.84M | – | Carbon removal projects are developed by InPlanet for climate mitigation. | |
| everestcarbon.com | 2022 | San Francisco, United States | $3M | – | Carbon removal solutions are developed via enhanced weathering measurements. | |
| cascadeclimate.org | 2007 | Somerville, United States | – | – | Nonprofit advancing climate interventions through research, policy, and cross-sector collaboration. | |
| mati.earth | 2022 | Houston, United States | – | – | Provider of carbon removal solutions through focus on Indian rice paddy small-holder farmers | |
| aeroc.earth | 2024 | Cologne, Germany | – | – | Provides rock weathering services to sequester CO2 and improve farm soil health. | |
| tropicarbon.com | 2023 | – | – | – | Removes CO2 with rock dust on Colombian farms for climate mitigation. |
Detailed competitors of Alt Carbon
The full competitor set, operating metrics and side-by-side benchmarks require an active premium plan.
- Full competitor set
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Verified entity values are shown only after access is granted.
Web traffic of Alt Carbon
Websites that share an audience with Alt Carbon (alt-carbon.com).
Websites whose visitors overlap most with Alt Carbon. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
| seekout.com | 100% | 32.8K | #929,610 | View details |
Latest news on Alt Carbon
Complete news archive for Alt Carbon
Full article history, source details, and older brand coverage require an active premium plan.
- Full article archive
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Similar companies to Alt Carbon
10 companies that operate in the same segment as Alt Carbon (Pollution & Air Quality Systems), ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Platform for enterprise sustainability measurement, reporting, and action is provided. | 2019 | San Francisco, California, United States | USD 184.96 M | – | 295 | |
Weather intelligence and forecasting solutions are provided for industries. | 2016 | Boston, Massachusetts, United States | USD 374 M | – | 115 | |
Carbon dioxide is converted into products via renewable energy technology. | 2015 | Berkeley, California, United States | USD 472.37 M | – | – | |
Independent ratings and risk analytics for carbon projects are provided. | 2020 | London, England, United Kingdom | USD 109.21 M | – | – | |
Carbon dioxide is captured from the atmosphere by Carbon Engineering. | 2009 | Squamish, British Columbia, Canada | USD 107.06 M | – | – | |
Cloud-based solutions for crop management and analytics are offered. | 2016 | Durham, North Carolina, United States | USD 60.75 M | – | 103 | |
Microbe-based plant protection products and yield optimization services are provided. | 2013 | Boston, Massachusetts, United States | USD 1.4 B | – | – | |
Provider of modular carbon capture technology and industrial decarbonization solutions | 2009 | London, England, United Kingdom | USD 248.83 M | USD 7.24 M | – | |
Carbon footprints are tracked via an online platform for users. | 2010 | Wellington, New Zealand | USD 26.27 M | – | – | |
A platform for logistics emissions calculation and reporting is provided. | 2021 | London, England, United Kingdom | USD 14.5 M | – | 20 |
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Frequently Asked Questions about Alt Carbon
Alt Carbon was founded in 2023.
Alt Carbon is headquartered in Kolkata, India. It is registered at Kolkata, West Bengal, India.
Shrey Agarwal is the current CEO of Alt Carbon. They have also founded this company.
Alt Carbon is a funded company, having raised a total of $12.55M across 2 funding rounds to date. The company's 1st funding round was a Seed of $550K, raised on Dec 2023.
Alt Carbon has 1 employees.
Annual revenue of Alt Carbon is $0.07 as on Mar 31, 2024.
Founded in 2023 and based in Kolkata, India, enhanced rock weathering solutions for carbon dioxide removal are offered by the company. Natural CO2 mineralization is accelerated through the application of a proprietary blend of organic inputs and silicate-rich amendments to agricultural land. Soil enhancement and increased agricultural yields are achieved alongside permanent CO2 sequestration. Operations are focused on regions with high weathering rates to optimize carbon removal.
Alt Carbon's top competitors include Terradot, Eion and Everest Carbon.
Alt Carbon offers Hari Mati.
Alt Carbon has 14 investors. Key investors include Angel List, ACT Grants, PointOne Capital, Shastra VC, and Utsav Somani.
The valuation of Alt Carbon is $3.22M as of Dec 2023.
Alt Carbon is associated with 2 legal entities: Alt Carbon Tech Private Limited, Altered Carbon Technologies Private Limited.