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Malta Inc.

CAMBRIDGE, MA · Founded 2018 · Clean tech · Private

Steam-based ultra-high temperature heat pump for industrial heat electrification

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Updated · maltainc.com

Sector
Clean tech
Headquarters
CAMBRIDGE, MA
Founded
2018
Latest Form D
$24M, Jan 2026
Total capital
$96.3M
Federal grants
None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
Private capital raised
$96.3M
4 Form D · last Jan 2026
9 months since last filing
Federal contracts
None on recordNo federal contract awards found.
Granted patents
18
22 pending · first 2023
Rank in peer group#2 of 90

Capital timeline

202120222023202420252026FEDERAL ↑EQUITY ↓Cumulative $96.3M1st Form D$50.7M2nd Form D$21.6M3rd Form D$24M
202120222023202420252026FEDERAL ↑EQUITY ↓Cumulative $96.3M1st Form D$50.7M3rd Form D$24M

Latest events

  • Private capital raisedForm D · SEC · 3rd filing$24M
  • Private capital raisedForm D · SEC · 2nd filing$21.6M
  • Private capital raisedForm D · SEC · 1st filing$50.7M

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.

1 record has no date or no amount, so it isn’t placed on the timeline.

Standing among 90 peers

Line = median

Clean tech · Device

  • Granted patents#2 · top 2%

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
  • Alexandra PrunerDirectorNamed in SEC Form D filings
  • Alex SyedDirectorNamed in SEC Form D filings
  • Gonzalo Santos ZubiriaDirectorNamed in SEC Form D filings
  • Jeannine SargentDirectorNamed in SEC Form D filings
  • Jesus Santos EgeaDirectorNamed in SEC Form D filings
  • Michael IdelchikDirectorNamed in SEC Form D filings
Show all 10 people
  • Phil DellevilleExecutive Officer, DirectorNamed in SEC Form D filings
  • Ramya SwaminathanExecutive Officer, DirectorNamed in SEC Form D filings
  • Steve HirshDirectorNamed in SEC Form D filings
  • Steven HirshDirectorNamed in SEC Form D filings

What it has protected

USPTO · 18 granted of 40
  • GrantedThermodynamic Cycle System With Thermal Plant IntegrationUSPTOUS 12,723,542
  • PendingPumped Heat Energy Storage System Integrated With Coal-fired Energy Generation UnitUSPTOApplication 19319193
  • PendingPumped Heat Energy Storage System With Load FollowingUSPTOApplication 19319204
Show all 40 patent records

Related companies, and why

  • VERPOND, INC.Similar federal contract value in Clean tech · null in contracts
  • MARLEY ENVIRONMENTAL INCSimilar federal contract value in Clean tech · null in contracts
  • SepSense Racing Testing LLCSimilar federal contract value in Clean tech · null in contracts
  • ZEROEX HOLDINGS, INC.Similar federal contract value in Clean tech · null in contracts
  • AtmetoSimilar federal contract value in Clean tech · null in contracts
  • BassInSight, Inc.Similar federal contract value in Clean tech · null in contracts

Press

1 article · matched on company name

Regulatory activity · Clean tech

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 .