- Companies
- Malta
Malta Funding, Investors & Competitors
Malta has raised $133M across 4 funding rounds, most recently a $24M undisclosed-stage round in January 2026.
Last Malta funding round
$24M
Undisclosed stage · Jan 2026
Cumulative funding Malta raised
$133M
across 4 funding rounds
Key investors in Malta
Breakthrough Energy Ventures
Alfa Laval
Chevron Technology Ventures
Piva Capital
Proman
Dustin Moskovitz
Siemens Energy Ventures
Concord New Energy Group
About Malta
Malta is an energy storage company headquartered in Cambridge, Massachusetts, and incubated at Alphabet's X lab. The firm deploys grid-scale systems using thermochemical salt technology to store renewable and off-peak fossil energy for dispatch during peaks. Malta's pods hold 1,000 megawatt-hours each, with pilots connected to PJM Interconnection grid. Backed by Breakthrough Energy Ventures and Mitsui, the company targets utilities for baseload power balancing with 98 percent round-trip efficiency.
Founded
2018
HQ
Website
Status
Privately held
Customer focus
B2B
Revenue model
Product sales
Malta Funding History
Malta has raised a total of $133M across 4 funding rounds.
Malta's first fundraising round was a $26M Series A in December 2018. The most recent completed round was a $24M undisclosed-stage round in January 2026.
Malta funding rounds
| Date | Stage | Investors | Raised | Deal Summary |
|---|---|---|---|---|
| Jan 2026 | Undisclosed stage | - | $24M | - |
| Nov 2023 | Undisclosed stage | Breakthrough Energy Ventures; Proman; Chevron Technology Ventures; Alfa Laval; Piva Capital; Siemens Energy Ventures | $22M | - |
| Feb 2021 | Series B | Proman (lead); Breakthrough Energy Ventures; Chevron Technology Ventures; Dustin Moskovitz; Alfa Laval; Piva Capital | $61M | Malta Inc. develops long-duration energy storage technology using a pumped heat energy storage (PHES) system that leverages well-established technologies and materials to store days of electricity, enabling renewables to become fully dispatchable and supporting grid stability. The company raised $50 million in its Series B round on February 24, 2021, led by Proman, with participation from new investor Dustin Moskovitz and existing investors Alfa Laval and Breakthrough Energy Ventures. The funding aims to advance commercialization of Malta's scalable storage solution to accelerate renewable energy expansion. The round later expanded to approximately $60.9 million by August 2021, with additional investments from Chevron Technology Ventures and Piva Capital, as tranche payments closed. Malta's CEO Ramya Swaminathan highlighted the investors' confidence in executing the next phase, while Proman committed engineering expertise for commercial-scale plants. Investors like Breakthrough Energy Ventures' Carmichael Roberts and Dustin Moskovitz emphasized the technology's potential to reduce carbon emissions and support the transition to dispatchable renewables. This Series B followed a $26 million Series A in 2018 led by Breakthrough Energy Ventures with Alfa Laval and others. A subsequent Series C round in December 2023 raised $21.6 million at a $183 million post-money valuation from similar investors including Siemens Energy Ventures. |
| Dec 2018 | Series A | Breakthrough Energy Ventures (lead); Concord New Energy Group; Alfa Laval | $26M | Malta Inc., a pioneer in electro-thermal long-duration energy storage, spun out from Alphabet's X moonshot factory on December 19, 2018, raising $26 million in a Series A round led by Breakthrough Energy Ventures, with participation from Alfa Laval and Concord New Energy Group. The technology stores energy as heat in molten salt and cold in antifreeze liquid using a heat pump and heat engine, enabling storage for days or weeks to support grid-scale renewable energy integration, outperforming lithium-ion batteries in duration and cost scalability. The funding supports transitioning detailed designs from X into industrial-grade machinery for a first pilot system, partnering with industry leaders. Investors highlighted Malta's potential to address renewable intermittency using existing components for cost-effective scaling. Breakthrough Energy Ventures, backed by figures like Bill Gates, focuses on clean energy breakthroughs across key emission sectors. Subsequent rounds included a $50M Series B in 2021 led by Proman with existing investors, expanded to ~$60M, and later investments from Chevron, Piva Capital, Trafigura, Siemens Energy Ventures, and Cox Group, alongside partnerships for commercial deployment. |
Who has invested in Malta?
8 investors have backed Malta across its funding rounds, including Breakthrough Energy Ventures, Alfa Laval, Chevron Technology Ventures, Piva Capital, Proman and Dustin Moskovitz.
Lead investors include Proman and Breakthrough Energy Ventures.
Malta Investors
| Investor | HQ | Rounds | Role | First check |
|---|---|---|---|---|
| 3 | Lead | Dec 2018 | ||
| 3 | Participant | Dec 2018 | ||
| 2 | Lead | Feb 2021 | ||
| 2 | Participant | Feb 2021 | ||
| 2 | Participant | Feb 2021 | ||
| 1 | Participant | Dec 2018 | ||
This data is available for Pro users. Sign up to see all 8 Malta investors. Start Free Trial | ||||
Benchmark 350K+ Funding Rounds and Disclosed VC Valuation Multiples
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Start Free TrialMalta Competitors
Malta competitors include listed companies like Vistra, Enlight Renewable Energy and Sunwoda Electronic Co, and private ones like Base Power, Northvolt and Farasis Energy.
| Company | HQ | Status | Revenue | EBITDA | Valuation | Revenue Multiple |
|---|---|---|---|---|---|---|
| Publicly listed | $18B | $5B | $48B | 3.3x | ||
| Private | - | - | $13B | - | ||
| Private | - | - | $12B | - | ||
| Publicly listed | $582M | $461M | $11B | - | ||
| Publicly listed | $9.4B | $388M | $5.6B | 0.8x | ||
| Private | - | - | $4.2B | - |
Malta Public Comps
Malta is still privately-owned, but its public comps include Tesla, GE Vernova, CATL, Iberdrola, China Yangtze Power, Constellation Energy, LG Energy Solution, Vistra, ACWA Power and Vestas.
| Last FY | EV/Revenue | EV/EBITDA | ||||||
|---|---|---|---|---|---|---|---|---|
| Revenue | EBITDA | Last FY | LTM | 2027E | Last FY | LTM | 2027E | |
| $95B | $10B | 15.0x | 13.8x | 140.8x | 97.4x | |||
| $38B | $3.2B | 6.2x | 5.4x | 73.5x | 43.5x | |||
| $63B | $16B | 2.8x | 2.1x | 11.0x | 9.2x | |||
| $51B | $17B | 4.4x | 4.3x | 13.2x | 11.8x | |||
| $13B | $11B | 11.4x | 11.3x | 13.9x | 14.4x | |||
| $26B | $5B | 4.6x | 3.8x | 23.5x | 15.3x | |||
| $17B | $3.4B | 4.8x | 3.9x | 24.1x | 22.2x | |||
| $18B | $5B | 4.0x | 3.3x | 13.9x | 10.2x | |||
This data is available for Pro users. Sign up to see all Malta competitors and their valuation data. Start Free Trial | ||||||||
Common questions about Malta
| When was Malta founded? | Malta was founded in 2018. |
| Where is Malta headquartered? | Malta is headquartered in United States. |
| Is Malta publicly listed? | No, Malta is a private, VC-backed company. |
| How much funding has Malta raised? | Malta has raised $133M across 4 funding rounds. |
| What was Malta's last funding round? | Malta's last funding round was a $24M undisclosed-stage round in January 2026. |
| Who are Malta's investors? | Malta's investors include Breakthrough Energy Ventures, Alfa Laval, Proman, Chevron Technology Ventures, Piva Capital, Concord New Energy Group, Dustin Moskovitz and Siemens Energy Ventures. |
| Which companies are comparable to Malta? | Companies comparable to Malta include Vistra, Base Power, Northvolt, Enlight Renewable Energy, Sunwoda Electronic Co and Farasis Energy. |
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