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Captura

Pasadena, US · Founded 2021 · Delaware corporation · 12 known investors

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Captura develops Direct Ocean Capture technology using bipolar membrane electrodialysis to remove CO₂ from the upper ocean and atmosphere. From its Pasadena facility, the company also manufactures high-performance membranes and electrodialysis stacks for carbon removal and other sustainability-focused industrial, resource, and energy applications.

CleantechClimate TechDeep Tech

Founders & leadership

Captura was founded in 2021 by Chengxiang Xiang, Bernard David, Harry Atwater, and CX Xiang.

CX
Chengxiang XiangFounder
BDBernard David
Bernard DavidCo-founder · Chairman of the BoardBernard David founded SaveSmart (later Prio) and OfficeSupplies.com, both of which were acquired, before shifting his focus to climate and sustainability. He serves as Board Chair of Captura Corp. and founded the Global CO2 Initiative; he has also advised organizations including the Energy Transitions Commission, Joint Center for Artificial Photosynthesis, and the Graham Sustainability Institute, and taught at Wharton.
HAHarry Atwater
Harry AtwaterCo-Founder and Chief Science OfficerHarry Atwater is a professor of applied physics and materials science at the California Institute of Technology, where he holds leadership roles in its engineering division and directs the Department of Energy's Liquid Sunlight Alliance (having previously led the Joint Center for Artificial Photosynthesis from 2014-2020); his research covers nanophotonics, plasmonics, solar energy conversion, and carbon capture. He is an Executive Officer and Director of Captura, which develops ocean-based carbon capture technology and manufactures membranes and electrodialysis stacks.
CX
CX XiangCo-Founder & CTOXiang is a Research Professor of Applied Physics and Materials Science at Caltech, where he was previously a staff scientist at the Joint Center for Artificial Photosynthesis and a postdoctoral scholar in the Lewis Group. He co-founded Captura in 2021, focusing on electrochemical CO2 capture from seawater.
SO
Steve OldhamChief Executive OfficerOldham previously led Carbon Engineering Ltd. as CEO from 2018 to 2022, following more than two decades at MDA (Macdonald Dettwiler & Associates), where he rose from software engineer to VP of Strategic Business Development and served as General Manager of Satellite Missions & Robotics. He began his career as a software engineer at Ferranti Computer Systems.
CB
Christene BandaSecretary

Board

MW
Michael WheelerBoard director
EPEd Phillips
Ed PhillipsBoard MemberManaging Director, Global at Future Planet Capital
JF
Johan Fredrik PfeifferBoard director

Investors · 12

FREEFLOWlisted by FREEFLOWBerkeley

How we know: the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us

Future Planet Capitallisted by Future Planet CapitalLondon

How we know: Future Planet Capital's portfolio page · a partner's Signal profile · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us

Hitachi Ventureslisted by Hitachi VenturesMunich

How we know: offering press articles · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us

Maersk Growthlisted by Maersk Growth$1M – $50Mvia Shereen Zarkani · inferred

How we know: Maersk Growth's portfolio page · finance.yahoo.com · the VCSheet dataset · Not right? Tell us

MOL Switchlisted by MOL SwitchPalo Alto
TransLink Capitallisted by TransLink CapitalPalo Alto · $1M – $5M

How we know: TransLink Capital's portfolio page · Not right? Tell us

Aramco Venturesreported

How we know: offering press articles · Not right? Tell us

Equinor VenturesreportedStavanger · $1M – $70Mvia Katherine Peachey · quoted

How we know: offering press articles · Not right? Tell us

National Grid PartnersreportedLos Gatos

How we know: offering press articles · globenewswire.com · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us

Also in the syndicate · 2

EDPJapan Airlines Innovation Fund/Translink Capital

Funding

SEC filings, press & company announcements

$124.8M disclosed across 4 of 6 rounds · 2022–2026

▶$53.5MraisedJul 2026 · 45 investors · Other Technology
Rule 506(b)
Captura raises $12.5M in first close of Series B financing to expand electrodialysis platform across critical minerals, carbon removal, and industrial markets - Capturacapturacorp.com · Jun 2026
Officers, directors & promoters on the filing
  • Stephen James OldhamExecutive Officer, Director
  • Chengxiang XiangExecutive Officer, Director
  • Michael WheelerDirector
  • Ed PhillipsDirector
  • Bernard DavidExecutive Officer, Director
  • Johan Fredrik PfeifferDirector
  • Christene BandaExecutive Officer
Offering amount
$60.9M
Amount sold
$53.5M
Finders' fees
$75K
Placement agents
Longspur Capital Limited
First sale
Jun 2026
Incorporated
Corporation, Delaware, 2021
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$13.6MraisedApr 2023 · 19 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Michael WheelerDirector
  • Harry AtwaterExecutive Officer, Director
  • Stephen James OldhamExecutive Officer
  • Chengxiang XiangExecutive Officer, Director
  • Ed PhillipsDirector
Offering amount
$13.6M
Amount sold
$13.6M
First sale
Dec 2022
Incorporated
Corporation, Delaware, 2021
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Related companies · 2

Carbon CaptureCarbonCapture develops CO₂ direct air capture technology aimed at removing carbon from the atmosphere to address climate change. The company operates in the cleantech and carbon removal industry.
AircaptureAircapture builds direct air capture systems that provide commercial and industrial customers with beverage-grade CO2 captured on-site from the atmosphere, offering an alternative to traditional CO2 distribution. The company targets a circular carbon economy, serving customers such as beverage producers who need on-demand CO2 supply.

Companies working in the same space as Captura.

In the news

Captura raises $12.5M in first close of Series B financing to expand electrodialysis platform across critical minerals, carbon removal, and industrial markets - Capturacapturacorp.com · Jun 2026Carbon removal firm Captura expands Series A funding to US$45.3Mglobenewswire.com · Apr 2024Captura Raises US$21.5M in Series A Fundingfinsmes.com · Jan 2024Captura raises US$21.5M, with investments from Maersk Growth, Eni Next and EDPfinance.yahoo.com · Jan 2024

Frequently asked questions

What does Captura do?
Captura develops Direct Ocean Capture technology using bipolar membrane electrodialysis to remove CO₂ from the upper ocean and atmosphere. From its Pasadena facility, the company also manufactures high-performance membranes and electrodialysis stacks for carbon removal and other sustainability-focused industrial, resource, and energy applications.
Who founded Captura?
Captura was founded by Chengxiang Xiang, Bernard David, Harry Atwater, CX Xiang in 2021.
Who are Captura's investors?
Captura's investors include Eni Next, FREEFLOW, Future Planet Capital, Hitachi Ventures, Maersk Growth, MOL Switch, TransLink Capital, Aramco Ventures and 2 more.
How much funding has Captura raised?
Captura has disclosed $124.8M raised across 4 of its 6 known rounds.
Where is Captura headquartered?
Captura is headquartered in Pasadena, US.