Deep Sky, based in Montreal, runs Deep Sky Alpha in Innisfail, Alberta, a solar-powered site that tests several direct air capture technologies side by side and stores the CO2 underground. Alpha began operations in August 2025, with what Deep Sky called North America's first CO2 storage from direct air capture.
At a glance
| Price from | Custom |
| Best for | Capture technology makers that need a site to prove their kit |
From Deep Sky's own website.
What stands out
- Tests several capture technologies
- Solar-powered site
Worth knowing
- Very small capacity so far
- Early commercial stage
How it ranks
Deep Sky is ranked 10th of 10 in Best Carbon Capture Companies (Lister Score 85.1).
#10 in Best Carbon Capture Companies · Lister Score 85.1
Deep Sky Alpha began operations in August 2025 with a planned capacity of 3,000 tonnes of CO2 a year..
| Rank | Best Carbon Capture Companies | Score |
|---|---|---|
| 1 | ExxonMobil Low Carbon Solutions | 97.0 |
| 2 | 1PointFive (Occidental) | 95.8 |
| 3 | Northern Lights | 94.6 |
| 4 | SLB Capturi | 93.3 |
| 5 | Climeworks | 92.0 |
| 6 | Svante | 90.7 |
| 7 | Carbfix | 89.3 |
| 8 | Charm Industrial | 87.9 |
| 9 | Heirloom | 86.5 |
| 10 | Deep Sky | 85.1 |
Frequently asked questions
How does Deep Sky rank on Lister?
Deep Sky is ranked 10th of 10 in Best Carbon Capture Companies (Lister Score 85.1).
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