Heirloom

Mitigating the worst impacts of climate change by developing the world’s most cost-effective DAC technology to permanently remove CO2 from the atmosphere.

Climate and energyPlug and Play

TIMELINE · MONEY RAISED

Heirloom | 400 days from X account to first raise on record

@heirloomcarbon·Raised $203M in 2 sourced rounds·2 signals before the first raise

Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.

Funding rounds

1. December 4, 2024
   Series B+ · $150M
   FFuture Positive (lead)
   Source: heirloomcarbon.com
2. March 17, 2022
   Series A · $53M
   AAhren Innovation Capital (lead), BBreakthrough Energy Ventures (lead), BBreyer Capital, CCarbon Removal Partners, GGlobal Reserve Group, GGrantham Foundation, LLowercarbon Capital, MMicrosoft Climate Innovation Fund, QQuantum Capital Group, SSeven Seven Six, TTime Ventures, YYouWeb IV: Impact
   Source: prnewswire.com
3. February 23, 2021
   Website created
4. February 10, 2021
   X account created
5. Date unknown
   PPlug and Play · accelerator or program
   Source: public.dxp.playbook.vc

Founders and team

• JB
  Jean Bond Founder

  LinkedIn
• NM
  Noah McQueen Founder

  @noahmcqueen13 · LinkedIn
• SS
  Shashank Samala Founder

  @ShashankSamala · LinkedIn
• GR
  Gregory Russell Head of Talent
• LM
  Lisa Molinaro Strategy and Operations

Investors

• AAhren Innovation Capitallead investor
• BBreakthrough Energy Ventureslead investor
• BBreyer Capital
• CCarbon Direct Capital
• CCarbon Removal Partners
• CChiyoda Corporation
• DDevelopment Bank of Japan
• FFloating Point
• FFuture Positivelead investor
• GGlobal Reserve Group
• GGrantham Foundation
• HH&M Group Ventures
• LLowercarbon Capital
• MMicrosoft Climate Innovation Fund
• MMitsubishi Corporation (Americas)
• MMitsui & Co.
• PPlug and Playaccelerator
• PPrelude
• QQuantum Capital Group
• SSeven Seven Six
• SSiemens Financial Services
• TTime Ventures
• UUnited Airlines Ventures
• YYouWeb IV: Impact

Companies like Heirloom

• AApplied Carbon$21.5M Series A · Aug 2024
• 444.01Series A · Feb 2025
• CCarbon XtractSeed · Aug 2026
• AAmogy$11M Series B+ · Jun 2023
• DDeep Sky$42M Series A · Nov 2023
• CCarbonaideSeed · Jan 2026

Other companies backed by Future Positive

• VVerse$54M Series B+ · Jun 2026
• PPanthalassa$140M Series B+ · May 2026
• AAerones$60M Series B+ · Jun 2025
• LLe Fourgon$8.5M Series A · Jan 2025
• PPachama$9M Series B+ · Dec 2023
• SSpeakSeries B+ · Mar 2025

Future Positive portfolio →