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Planetary Technologies

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Developing technology to remove carbon dioxide from the atmosphere

Dartmouth, CanadaFounded 2019Energy
Valuation $100–250M Last recorded · 2025
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Planetary Technologies and the history behind them.

About Planetary Technologies

Planetary Tech is a pioneering startup that operates in the environmental technology sector, specifically focusing on climate change mitigation. The company's primary mission is to combat climate change by enhancing the ocean's ability to remove carbon dioxide (CO2) from the atmosphere, a process known as Ocean Alkalinity Enhancement (OAE).

OAE is a nature-inspired process that involves adding an antacid to seawater, neutralizing CO2 and reducing harmful ocean acidity. This process mimics the natural geologic capture of carbon but works much faster, acting in months rather than millennia. The result is the safe, permanent removal of CO2, which helps to combat ocean acidification and climate change by restoring the ocean's vital chemistry.

Planetary Tech's business model revolves around the development and implementation of its OAE method. The company uses naturally abundant materials that have been used in water treatment applications for decades. These materials are added to existing water systems, and the treated water is then released into the ocean.

The company's revenue is likely generated through partnerships with scientific institutions, regulators, and local communities interested in implementing their carbon removal methods. They also partner with suppliers of safe antacids produced with a low carbon footprint, which are used extensively in wastewater and aquaculture.

In summary, Planetary Tech is a climate change mitigation startup that uses innovative technology to enhance the ocean's ability to remove CO2 from the atmosphere, thereby combating ocean acidification and climate change.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2019
Headquarters
Dartmouth, Canada
Employees
30
Open positions
None listed
Dealroom signal
66.2/100
Sub-industry
Clean Energy, Waste Solution
Sector
Energy, Mining Technologies, Hydrogen, Spinout, Sustainable Development Goals, Carbon Capture and Storage, Biodiversity, Climate Tech, Blue Economy
Technology
Hardware, Deep Tech
Business model
Manufacturing
Client focus
b2b
Investment activity
4 companies, latest Mar 2025
Capital deployed
$136M
Preferred round
SERIES A

Funding history

7 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
EARLY VCOther financing Aug 2025 $31M $125M Frontier ↗
SERIES AOther financing Oct 2024 $11M $45M BDC Capital · Amplify Capital · Evok Innovations · ICONIQ Capital ↗
Showing the latest 2 of 7 recorded eventsBook a demo for the full funding history →

Growth signals

Planetary Technologies website traffic

Latest recorded traffic for Planetary Technologies is 4.8K monthly website visits, down 11.1% over the last three months. Planetary Technologies's team declined 26.8% over the past year.

Latest monthly visits4.8K 3-month web change-11.1% 1-year team growth-26.8%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

Company identity and context are open; selected comparison metrics preview what is available on the platform.

Showing 8 of the closest matchesCompare every metric →

Investors

20 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed3 investors entered at this stage

  • Ocean Startup Project
  • Apollo projects
  • Innovacorp

Series A6 investors entered at this stage

Other known investors11 additional known investors

  • Lawrence Livermore National Laboratory
  • University of California, Santa Cruz
  • 1000 Ocean Startups
  • ACRE Incubator
  • Capital Angel Network
  • Creative Destruction Lab
  • Cycle Momentum
  • Plug and Play
  • Ramen Ventures
  • Something Good Ventures
  • Urban Future Lab
Team profiled 4 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 2 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
4 countries with
team presence
🇨🇦 Canada69%
🇺🇸 United States20.7%
🇬🇧 United Kingdom6.9%
🏳️ Andorra3.5%
4 countries shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Planetary Technologies on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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