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Form Energy

SOMERVILLE, MA · Founded 2017 · Energy · Private

Iron-air battery for grid-scale energy storage

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Updated · formenergy.com

Sector
Energy
Headquarters
SOMERVILLE, MA
Founded
2017
Latest Form D
$335M, Oct 2022
Total capital
$592M
Federal grants
None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
Private capital raised
$592M
6 Form D · last Oct 2022
49 months since last filing
Federal contracts
None on recordNo federal contract awards found.
Granted patents
8
32 pending · first 2025
Rank in peer group#7 of 108

Capital timeline

201720182019202020212022FEDERAL ↑EQUITY ↓Cumulative $592M1st Form D$2M3rd Form D$40M4th Form D$52M6th Form D$335M
201720182019202020212022FEDERAL ↑EQUITY ↓Cumulative $592M

Latest events

  • Private capital raisedForm D · SEC · 6th filing$335M
  • Private capital raisedForm D · SEC · 5th filing$155M
  • Private capital raisedForm D · SEC · 4th filing$52M
  • Private capital raisedForm D · SEC · 3rd filing$40M
  • Private capital raisedForm D · SEC · 2nd filing$7.4M
  • Private capital raisedForm D · SEC · 1st filing$2M

Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.

Standing among 108 peers

Line = median

Energy · Material

  • Granted patents#7 · top 6%

Cumulative measures favor older companies. Rankings describe position today, not outcome. Below the median, ranks show as a band rather than a number.

Founders and team

From SEC Form D filings
  • David Thomas DanielsonDirectorNamed in SEC Form D filings
  • Gabriel A. KraDirectorNamed in SEC Form D filings
  • Jaimin J. RangwallaDirectorNamed in SEC Form D filings
  • Katie A. RaeDirectorNamed in SEC Form D filings
  • Lorenzo J. SicilianoDirectorNamed in SEC Form D filings
  • Marc J. MezvinskyDirectorNamed in SEC Form D filings
Show all 15 people
  • Marco Thomas FerraraExecutive OfficerNamed in SEC Form D filings
  • Massimiliano Thomas PieriDirectorNamed in SEC Form D filings
  • Mateo A. JaramilloExecutive Officer, DirectorNamed in SEC Form D filings
  • Michael Thomas SkellyDirectorNamed in SEC Form D filings
  • Philip J. DeutchDirectorNamed in SEC Form D filings
  • Philip J. Thomas DeutchDirectorNamed in SEC Form D filings
  • Theodore A. WileyExecutive Officer, DirectorNamed in SEC Form D filings
  • William Henry Woodford IVExecutive OfficerNamed in SEC Form D filings
  • Yet-Ming A. ChiangDirectorNamed in SEC Form D filings

What it has protected

USPTO · 8 granted of 40
Show all 40 patent records
  • Refuelable Battery For The Electric Grid And Method Of Using ThereofSep 15, 2026 · US 12,738,509Granted
  • Corrugated Fuel ElectrodeAug 13, 2026 · Application 19331148Pending
  • Bifacial Sealed Gas Diffusion ElectrodeJul 2, 2026 · Application 19548369Pending
  • Method For Manufacturing Direct Reduced Iron With A Low Carbon ContentJul 2, 2026 · Application 19130022Pending
  • Long Life Sealed Alkaline Secondary BatteriesMay 7, 2026 · Application 19236081Pending
  • Bifacial Sealed Gas Diffusion ElectrodeMar 3, 2026 · US 12,567,625Granted
  • Carbon Dioxide Removal For Electrochemical Power StorageFeb 26, 2026 · Application 18815751Pending
  • Negative Electrodes For Electrochemical CellsFeb 12, 2026 · Application 19263139Pending
  • Methods, Systems, And Devices For Purifying Metal-containing MaterialJan 1, 2026 · Application 19253324Pending
  • Hybrid Battery SystemNov 18, 2025 · US 12,476,479Granted
  • System and Method For Large Volume Design, Build, and TestOct 21, 2025 · US 12,450,151Granted
  • Metal-oxygen Battery And Method Of Use ThereofOct 16, 2025 · Application 19175169Pending
  • High Surface Area Plating For Oxygen Evolution ElectrodesOct 16, 2025 · Application 19177086Pending
  • Passive Carbon-oxygen Battery System And Method Of Use ThereofOct 16, 2025 · Application 19175148Pending
  • Methane-oxygen Battery System And Method Of Use ThereofOct 16, 2025 · Application 19175341Pending
  • Corrugated Fuel ElectrodeOct 14, 2025 · US 12,444,755Granted
  • Gas Sensor Adapter For A High Flow Ventilation SystemAug 28, 2025 · Application 19060103Pending
  • Current Collecting In Metal-air BatteriesAug 28, 2025 · Application 19060931Pending
  • Separator Attachment In Metal-air BatteriesAug 28, 2025 · Application 19061774Pending
  • Gas Diffusion Electrodes For Metal-air BatteriesAug 28, 2025 · Application 19060909Pending
  • Electrochemical Cells Including Electrode Stacks For Metal-air BatteriesAug 28, 2025 · Application 19061979Pending
  • Battery RecyclingAug 7, 2025 · Application 18886523Pending
  • Negative Electrodes For Electrochemical CellsJul 15, 2025 · US 12,362,352Granted
  • Iron Powder, Iron Electrode, Iron Battery, And Method Of Manufacture ThereofJul 10, 2025 · Application 19002307Pending
  • Long Life Sealed Alkaline Secondary BatteriesJul 8, 2025 · US 12,355,042Granted
  • Electrochemical Cell Including An Additive And Method Of Operating The Electrochemical CellJul 3, 2025 · Application 19001934Pending
  • Mist Elimination System For Electrochemical CellsJun 26, 2025 · Application 18826974Pending
  • Decoupled Electrode Electrochemical Energy Storage SystemJun 5, 2025 · Application 18971608Pending
  • Device Architectures For Metal-air BatteriesMay 29, 2025 · Application 18966998Pending
  • Purification Of Alkaline ElectrolytesMay 22, 2025 · Application 18793146Pending
  • Device Architectures For Metal-air BatteriesMay 20, 2025 · US 12,308,414Granted
  • System And Methods For Separation Of Electrolytic Iron From Iron-containing FeedstockMay 8, 2025 · Application 18942097Pending
  • Generating And Controlling Magnetic Fields For Electrolyzer StacksMay 8, 2025 · Application 18941919Pending
  • Removal Of Impurities Contained In Iron OresMay 8, 2025 · Application 18941806Pending
  • Processing Iron-containing Feedstocks Using OxalateMay 1, 2025 · Application 18906722Pending
  • Additive For Iron-air BatteriesMay 1, 2025 · Application 18926383Pending
  • Mitigating Passivation Of Metal ElectrodesApr 24, 2025 · Application 18922381Pending
  • Low Concentration Additives For Iron Negative ElectrodesApr 24, 2025 · Application 18922247Pending
  • Metal Air Electrochemical Cell ArchitectureApr 17, 2025 · Application 18988337Pending
  • Flame Arresting In Electrochemical Energy Storage ModulesApr 3, 2025 · Application 18904966Pending

Related companies, and why

Press

1 article · matched on company name

Regulatory activity · Energy

Sector-level, not company-level

Rules are matched to sector, not to company. Recent activity in a sector is context rather than a signal about this business — until rules are matched to what a company actually builds, the section is shown as context and nothing more.

Sources

Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.

How to read this page

Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.

Data freshness

SEC Form D filings through . SBIR and STTR awards through .