Ohmium International is a US-headquartered (Fremont, California) green hydrogen company with Indian operations near Bengaluru that makes modular PEM electrolyser systems; it is not an Indian-headquartered startup but has its main manufacturing in India.

This Startup Deep Dive explains what Ohmium does, how it makes money, who backs it, how it compares with rivals and what could go wrong, using publicly available information. It is educational and not investment advice. Last updated: October 2026.

Ohmium in Brief

• What it is: Ohmium is an Indian Green hydrogen electrolysers company based in Fremont, California.
• Who it serves: businesses, institutions, consumers, learners and public-sector buyers.
• Designs and manufactures hypermodular proton exchange membrane (PEM) electrolysers that split water into hydrogen and oxygen
• Each unit can produce up to 50 tons of hydrogen a year and units can be linked together
• Manufactures in India, with a second gigafactory at Doddaballapura near Bengaluru of 2 GW capacity, expandable to 4 GW
• Funding: Reports differ: about USD 295 million to USD 311 million.

Ohmium Quick Facts

Figures marked “reported” come from published reports and may differ between sources; “Not disclosed” means no reliable public figure was found.

What Is Ohmium?

Ohmium operates in the Green hydrogen electrolysers space in India. Understanding a company like this starts with three questions: who is the customer, what painful problem is being solved, and why the solution is better than the alternatives. The sections below apply that lens to Ohmium.

• Designs and manufactures hypermodular proton exchange membrane (PEM) electrolysers that split water into hydrogen and oxygen
• Each unit can produce up to 50 tons of hydrogen a year and units can be linked together
• Manufactures in India, with a second gigafactory at Doddaballapura near Bengaluru of 2 GW capacity, expandable to 4 GW
• Partners with developers and EPC firms such as NTPC Renewable Energy and Tata Projects

The Origin Story of Ohmium

Every company starts from a noticed gap and a team willing to commit to closing it. Strong origin stories are specific: a clear problem, a founding team with relevant skills, and an early product that real customers could test. Founder-market fit, meaning the team’s lived experience or technical depth in the domain, tends to predict how fast a young company learns.

• Founders: Arne Ballantine, Kirsten Burpee.
• Sources list Arne Ballantine (CEO) and Kirsten Burpee as founders
• Founding year is given as 2019 by some profiles and 2020 by others
• Headquarters reports differ: Fremont, California (news reports) versus Incline Village, Nevada (a corporate directory)
• R&D is done at the Fremont headquarters, with scaled manufacturing at Chikkaballapur and Doddaballapura in Karnataka

Key Milestones and Challenges

No startup grows in a straight line. Early years usually involve slow adoption, product rewrites, hiring mistakes and funding gaps. In the Green hydrogen electrolysers sector the common turning points are a first paying customer, a regulatory approval, a successful product demonstration or a funding round that lets the team invest ahead of demand. How a team responds to setbacks says more about resilience than any single headline.

• November 2020: about USD 16.2 million equity round (database figure)
• April 2022: USD 45 million Series B (database figure)
• April 2023: USD 250 million Series C led by TPG Rise Climate
• 2023: selected as PEM electrolyser partner of NTPC Renewable Energy for 400 MW
• 2024: partnership with Tata Projects; selected for India's SIGHT green hydrogen incentives
• July 2024: second electrolyser gigafactory opened in Doddaballapura, 2 GW expandable to 4 GW
• Plans announced to double Karnataka capacity from 2 GW to 4 GW by 2026

Ohmium Funding and Investors

Funding history shows how much outside confidence a company has attracted and how long it can operate before needing more capital. Figures below are reported and may differ between sources; valuation figures are estimates unless the company has confirmed them.

• November 2020: about USD 16.2 million equity
• April 2022: USD 45 million Series B
• April 2023: USD 250 million Series C led by TPG Rise Climate, with investors including Hanover Technology Investment Management, Energy Transition Ventures and Fenice Investment Group
• One aggregator dates the Series C to October 2024 with Temasek among investors (reports differ)

How Does Ohmium Make Money? (Business Model)

A business model describes who pays, how often and how much it costs to serve them. Strong models show repeat usage, improving margins with scale and acquisition channels that do not depend only on paid spend. Weak models show one-off sales, rising costs and growth that stops when spending stops. For companies selling to businesses, institutions, consumers, learners and public-sector buyers, sales cycles and contract size matter as much as headline growth.

• Sells electrolyser systems to green hydrogen project developers and utilities
• Positions as a cost-advantaged manufacturer using India-based production to serve India, the US and EU projects
• Benefits from Indian government incentives for electrolyser manufacturing

The Numbers: Ohmium Financials

Financial figures show whether growth is turning into a self-sustaining business. Small and private companies often disclose little, so any number below is included only if it was found in public reporting.

• Headcount reported at about 400 in 2023 and about 551 in a later listing

Market Opportunity for Ohmium

Market size is easy to exaggerate, so a useful approach separates the total market from the portion a company can realistically reach with its current product and distribution. The main forces behind demand in this sector are rising digital adoption, cloud and mobile penetration, growing enterprise technology spending, government digitisation programmes and a deep pool of engineering talent. Each of these widens the opportunity, but capital efficiency and execution decide who captures it.

• Demand for green hydrogen electrolysers is driven by India's national hydrogen mission and US and EU subsidies
• Typical project sizes are expected to grow to 100 to 200 MW

Technology and Product at Ohmium

Technology is rarely the whole moat, but it drives speed, cost and customer experience. A practical way to assess it is to separate the capability the company controls from the commodity infrastructure it rents. In this sector the important factors are product quality, data and integration depth, security, scalability and the speed of shipping improvements.

• PEM electrolysis in hypermodular, mass-producible units
• Research collaborations with CSIR-CECRI and IIT Madras Research Park

Team and Culture at Ohmium

Teams are the most important and least measurable asset of a young company. Look at how complementary the founders’ skills are, how deep the second layer of leadership is, and how the company hires and retains specialists. Culture shows up in small repeated behaviours: how quickly bad news travels upward and whether commitments to customers are kept.

• Arne Ballantine is CEO
• Ashwin Varma is COO

Ohmium Competitors: Competitive Landscape

A fair competitive analysis names direct rivals, adjacent players who could move into the space, and the customer’s default alternative. Durable advantages include proprietary data or technology, licences and approvals, brand trust, switching costs and cost leadership.

Risks and Challenges for Ohmium

• Revenue is undisclosed and the electrolyser market is highly competitive
• Factory scale-up depends on project demand; the new factory was expected to start about 10 percent full
• Sources conflict on key facts such as headquarters, founding year and valuation
• Competition: low barriers to entry and well-funded rivals can compress pricing and slow growth.
• Funding risk: technology businesses often burn cash before reaching profit and depend on investor appetite.

Risk is not a reason to avoid a company; it is a reason to price it correctly and to monitor the right indicators over time. Regulation in this sector is shaped by data protection rules under the Digital Personal Data Protection Act, sector regulators, consumer protection law and IT rules.

Ohmium Growth Outlook: What to Watch

• Plans to expand Karnataka capacity to 4 GW by 2026
• Order flow depends on large Indian projects such as the NTPC agreement
• Key indicators: recurring revenue, customer retention, gross margin, customer acquisition cost and runway.
• Funding position: Whether Ohmium can reach its next milestone before needing new capital.
• Regulation: Changes from data protection rules under the Digital Personal Data Protection Act, sector regulators, consumer protection law and IT rules.

Industry Context: Where Ohmium Fits

India's technology startup ecosystem is one of the largest in the world, supported by cheap data, a large base of smartphone users, digital public infrastructure and a deep engineering talent pool. Companies now build for education, software, mobility, logistics, agriculture, defence, media and more, selling both to Indian customers and abroad.

Durable technology companies usually combine a clear customer problem with repeatable distribution and disciplined unit economics. Growth funded only by spending tends to fade, while products that customers keep using and paying for build compounding advantages.

For readers new to this field, a useful habit is to separate announcements from evidence. A plan, a partnership or a funding headline describes intent, while a delivered product, a paying customer or an audited financial statement describes results. Comparing the two over time shows how reliably a company turns promises into outcomes.

Bull Case and Bear Case for Ohmium

An investment thesis is a short, testable statement of why a company could become far more valuable, together with what evidence would prove it wrong. The points below are general to this sector and are not forecasts for Ohmium.

Bull case

• A large and growing base of digital users and businesses expands the addressable market.
• Recurring revenue and strong retention can compound growth.
• Selling into global markets widens the opportunity beyond India.

Bear case

• Heavy competition can compress pricing and margins.
• Dependence on external funding can force painful cost cuts.
• Regulation or platform changes can disrupt a product quickly.

Lessons Founders and Investors Can Take from Ohmium

Studying a company in the Green hydrogen electrolysers space offers lessons that go beyond any single firm. The points below are general lessons for the sector and are not claims about Ohmium.

• Solving a clear, frequent customer problem matters more than adding features.
• Retention and repeat usage are better health signals than sign-ups.
• Disciplined spending extends runway and keeps options open when funding tightens.
• Distribution, not just product quality, decides who wins in crowded markets.
• Building trust through data protection and reliability is part of the product.

How to Evaluate Ohmium as a Startup

• Customer clarity: Can Ohmium name its customer and the problem it solves in one sentence?
• Evidence of demand: Look for repeat customers, signed contracts or measurable usage rather than announcements alone.
• Economics: Check whether margins improve as volume grows.
• Execution: Compare announced timelines with what has actually been delivered.
• Funding runway: Estimate how long current capital lasts at the present spending rate.
• Regulatory standing: Confirm required approvals are in place.
• Customer concentration: Check whether a few customers account for most of the revenue.
• Management depth: Look for experienced leaders beyond the founders and a stable core team.

The Takeaway

Ohmium is part of India’s growing Green hydrogen electrolysers ecosystem. The useful lesson from studying it is the discipline of asking structured questions about customers, economics, advantage and resilience. Companies that answer them well, repeatedly and under pressure are the ones that endure. Readers should treat any single report, ranking or funding headline as one input among many, and should re-check key facts against recent company announcements. Because public information on young companies is often limited, patience in verifying claims is part of good analysis. Public sources can also describe the same company in different ways, so it is worth checking dates, definitions and whether a figure refers to revenue, total income or transaction value, and whether it covers one entity or a wider group, before drawing conclusions. Small differences in rounding, currency conversion or reporting periods can also change how a figure reads. Comparing the same figure across several recent reports helps show whether it is stable or has changed over time. This article is educational and is not investment advice.

• Clear customers and repeat demand matter more than announcements.
• Regulation and capital needs shape how fast a startup in this sector can grow.
• Track a few leading indicators over time rather than one headline metric.

Ohmium FAQs: Frequently Asked Questions

What is Ohmium?

Ohmium International is a US-headquartered (Fremont, California) green hydrogen company with Indian operations near Bengaluru that makes modular PEM electrolyser systems; it is not an Indian-headquartered startup but has its main manufacturing in India. It is profiled in the Startup Deep Dive series, which explains business model, funding, competitors and risks.

Who founded Ohmium?

Ohmium was founded by Arne Ballantine, Kirsten Burpee, and the company reports a founding year of 2019.

How much funding has Ohmium raised?

Reports differ: about USD 295 million to USD 311 million. Funding figures are reported and may differ between sources, so readers should check the latest company announcements.

How does Ohmium make money?

Ohmium earns revenue from its Green hydrogen electrolysers products and services sold to businesses, institutions, consumers, learners and public-sector buyers. The exact revenue mix is described in the business model section and is not fully disclosed publicly.

Who are the competitors of Ohmium?

Reported rivals include Plug Power, Nel ASA, ITM Power, Electric Hydrogen. See the competitor comparison above for how they differ.

What are the main risks for Ohmium?

Main risks include competition: low barriers to entry and well-funded rivals can compress pricing and slow growth, funding and capital needs, competition and regulation by data protection rules under the Digital Personal Data Protection Act, sector regulators, consumer protection law and IT rules. This is educational content, not investment advice.

Related Startup Deep Dives: Sea6 Energy — Raised about $18.5 million Series B in August 2022 from BASF Venture Capital and Aqua-Spark; FY25 revenue about Rs 83 crore | Rare Planet — Raised Rs 65 lakh from Namita Thapar on Shark Tank India; investor later made a partial exit at 3.5x return. Browse the full Startup Deep Dive series.

Source

Source: Publicly available data, published reports, industry research, and other credible sources.